CN1746794A

CN1746794A - Process cartridge and image forming apparatus

Info

Publication number: CN1746794A
Application number: CN 200510099050
Authority: CN
Inventors: 泷川润也
Original assignee: Ricoh Co Ltd
Current assignee: Ricoh Co Ltd
Priority date: 2004-09-07
Filing date: 2005-09-06
Publication date: 2006-03-15
Anticipated expiration: 2025-09-06
Also published as: JP2006078605A; CN100432866C; JP4494137B2

Abstract

The invention relates to a processing caddy and an image forming device provided with the processing caddy, wherein an image carrying body is in locating connection with a developing component through a positioning element; a revolving body gear is fixed on the shaft of a developing roller of the developing component; an idler wheel is supported on the component body of the developing component through an idler shaft and can revolve freely; the revolving body gear is meshed with the idler wheel; a body gear, which is supported on the body of the image forming device and can revolve freely, is meshed with the idler wheel; the revolving of the body gear is transferred to the developing roller through the idler wheel and the revolving body gear. Through the positioning element 35 holding the idler wheel, idler shaft vibration caused by the force applied on the idler wheel by the body gear when the body gear revolves can be prevented.

Description

Cartridge processing and the image processing system that is provided with this cartridge processing

Technical field

The image processing system that the present invention relates to cartridge processing (process cartridge) and be provided with this cartridge processing.

Background technology

Cartridge processing and the image processing system that is provided with this cartridge processing are known for people, for example, and with reference to patent documentation 1.Described image processing system can be enumerated for example electronic copier, printer, facsimile recorder, compounding machine etc.Wherein, be provided with the solid of revolution assembly, for example developing device or cleaning assemblies etc.Described solid of revolution assembly comprises solid of revolution, and it is made of for example developer roll or cleaning brush etc., and this solid of revolution is configured to and picture mounting body subtend, and the axle of this solid of revolution is supported to can the revolution of winding spare body.

In the cartridge processing of above-mentioned formation, the solid of revolution gear is fixed on the rotator shaft, and at least one idle pulley is supported to can the revolution of relative component body by idler shaft.The body gear is bearing on the image forming device body pivotally.Make described solid of revolution gear be connected with described body gear, the revolution of body gear is delivered to the solid of revolution gear by idle pulley, like this, can drive the solid of revolution revolution by idle pulley.

At this moment, when the body gear turned round, active line was that the common tangent line from this body pitch circle and idle pulley pitch circle departs from pressure angle, along this active line direction, applies external force from the body gear to idle pulley.Therefore, idler shaft flexural deformation periodically vibrates, and this vibration transfer is to picture mounting body, like this, is formed on that to look like to take place banded concentration as the toner on the mounting body irregular, causes deterioration in image quality.

On the other hand, in recent years, use in the image processing system of electrofax processing at for example laser printer or digital copier etc., to be used for carrying out that image forms one of the various assemblies of action or several are installed in light sensitive body assembly, form cartridge processing, these cartridge processing loading and unloading are installed in the device body freely, and this structure increases.As various assemblies, can enumerate with toner the developing device that the electrostatic latent image on the photoreceptor develops, be used to remove photoreceptor cleaning assemblies that remaining toner is reclaimed on the photoreceptor etc.

Developing device or photoreceptor cleaning assemblies are driven by the rotary driving force from the device body.With this except that light sensitive body assembly, obtain assembly from the rotary driving force of device body and be called and be driven assembly.Described driving force transmission is carried out by the driven wheel of coupling arrangement base side and the gear that is driven of each components side.

Patent documentation 1: the spy opens the 2001-201999 communique

Patent documentation 2: the spy opens flat 6-194892 communique

Patent documentation 3: the spy opens the 2001-066970 communique

Patent documentation 4: the spy opens flat 10-333531 communique

Patent documentation 5: the spy opens flat 8-006459 communique

The location of the relative device body of cartridge processing is located at by making that support part supports on the device body the portion of being supported on the light sensitive body assembly of being located at realizes.In this location structure, the positional precision height of the relative device body of photoreceptor is good to the transfer printing of transfer printing body from photoreceptor.

But in this location structure, developing device or photoreceptor cleaning assemblies etc. is driven assembly and is installed in the device body by light sensitive body assembly, therefore, because tolerance build-up and foozle cause that the positional precision of relative device body is low.If positional precision is low, driven wheel and to be driven between the gear of gear engagement poor then.Like this, driving force takes place transmit irregularly, that revolution takes place is irregular being driven gear side, and vibration etc. cause picture quality low.

In patent documentation 2, putting down in writing the use primary standard, from benchmark, carry out the location of cartridge processing and body drive system, carry out correct transmission of drive force from device body to cartridge processing.

In patent documentation 3, putting down in writing along with the direction of the engagement tangential direction orthogonal of driven wheel and follower gear, set the slotted hole direction of the fulcrum of driven subassembly, make that the interval between photoreceptor and the picture mounting body keeps certain.

In patent documentation 4, putting down in writing photoconductor drum center, location and development cover center, be screwed photoreceptor housing and development housing, improve photoconductor drum and the installation accuracy of the cover that develops.

But the technology of putting down in writing in above-mentioned each document can not solve above-mentioned existing problem.

Summary of the invention

The present invention puts forward for solving the existing problem of above-mentioned prior art, and the 1st purpose of the present invention is to provide a kind of can stop or effectively suppress to take place cartridge processing of the problems referred to above and the image processing system that is provided with this cartridge processing.

The 2nd purpose of the present invention is to provide a kind of and is installed in the cartridge processing on the light sensitive body assembly will being driven assembly, improves the cartridge processing of the positional precision that is driven the relative image forming device body of assembly and the image processing system that is provided with this cartridge processing.

To achieve these goals, the present invention proposes following scheme:

(1) a kind of cartridge processing is contained in the image processing system removable jew, and this image processing system is provided with a main drive gear, and described cartridge processing comprises:

The picture carrier assembly is provided with picture mounting body;

The solid of revolution assembly, it comprises:

Component body;

Idler shaft is located on the described component body;

Idle pulley is installed on the described idler shaft, can be around described idler shaft revolution;

The solid of revolution gear is connected with described main drive gear by described idle pulley; And

Solid of revolution comprises rotator shaft, and described solid of revolution gear is located on this rotator shaft, and this solid of revolution turns round around rotator shaft, is configured to and described picture mounting body subtend, drives this solid of revolution from main drive gear through idle pulley and solid of revolution gear transmission; And

Positioning element is used for positioning with a preset distance as mounting body and solid of revolution described, and it is provided with and bears the hole, so as to reduce that revolution because of main drive gear causes be applied to external force influence on the idle pulley from main drive gear.

In the cartridge processing of above-mentioned (1), it is characterized in that (2) described idler shaft is fixed on the described component body,,, idle pulley is configured in a precalculated position by described positioning element along the axis direction of idler shaft.

In the cartridge processing of above-mentioned (1) or (2), it is characterized in that (3) the described hole of bearing is the slotted hole shape, has long limit, this relative external force direction in length limit has a predetermined angular, and the total tangential direction of described relatively idle pulley of described external force and main drive gear has pressure angle.

In the cartridge processing of above-mentioned (3), it is characterized in that (4) predetermined angular of described relative external force direction is roughly the right angle.

(5) in the cartridge processing of above-mentioned (1) or (2), it is characterized in that, further comprise the secondary standard pin and be formed on secondary standard hole on the described positioning element, described secondary standard pin inserts in the described secondary standard hole, and fix with described positioning element, turn round around described rotator shaft to prevent component body.

In the cartridge processing of above-mentioned (5), it is characterized in that (6) described positioning element is configured in each end of described component body, fix that described secondary standard pin is along extending with the direction of the axis almost parallel of described solid of revolution by described secondary standard pin.

In the cartridge processing of above-mentioned (1) or (2), it is characterized in that (7) described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, and described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

(8) in the cartridge processing of above-mentioned (1) or (2), it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.

(9) a kind of image processing system is characterized in that, the cartridge processing of any is housed in above-mentioned (1)-(8) removable jew.

(10) a kind of image processing system comprises:

Main drive gear;

Cartridge processing is contained in the image processing system removable jew, and described cartridge processing comprises:

The picture carrier assembly is provided with picture mounting body;

The solid of revolution assembly, it comprises:

Component body is provided with datum hole;

Idler shaft is located on the described component body;

Main output shaft, described main drive gear is located on this main output shaft, comprise the 1st place and the 2nd place, described the 1st place is bearing on the image forming device body pivotally, in the time of in cartridge processing is packed image forming device body into, described the 2nd place is bearing in the datum hole that forms on the component body of described solid of revolution assembly pivotally; And

CD-ROM drive motor drives described main drive gear by described main output shaft.

In the image processing system of above-mentioned (10), it is characterized in that (11) described main drive gear can move along the axis direction of described main output shaft, and, energized towards the cartridge processing side.

In the image processing system of above-mentioned (11), it is characterized in that (12) described main output shaft is provided with spring, to described main drive gear along energizing towards the cartridge processing side direction.

In the image processing system of above-mentioned (10) or (11), it is characterized in that (13) comprise that further the belt wheel that is fixed on the described main output shaft and volume hang over the band on this belt wheel, CD-ROM drive motor drives described main output shaft by described belt wheel and band.

In the image processing system of above-mentioned (10) or (11), it is characterized in that (14) described datum hole is provided with chamfered section, in the time of in cartridge processing is packed image forming device body into, the 2nd place of described main output shaft is imported described datum hole.

In the image processing system of above-mentioned (10) or (11), it is characterized in that (15) the 2nd place of described main output shaft is fitted to described datum hole by bearing.

In the image processing system of above-mentioned (10) or (11), it is characterized in that (16) described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, and described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

(17) in the image processing system of above-mentioned (10) or (11), it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.

(18) a kind of image processing system comprises:

The 1st support;

The 2nd support;

Main drive gear;

Main output shaft, described main drive gear is provided thereon;

Cartridge processing, it comprises:

The picture carrier assembly is provided with as mounting body and the 1st and is supported portion, and the 1st portion of being supported is positioned at the end of the axle of described picture mounting body, and in the time of in cartridge processing is packed image forming device body into, described the 1st support part supports the 1st is supported portion;

The solid of revolution assembly, it comprises:

Component body, be provided with the 2nd and be supported portion, in the time of in cartridge processing is packed image forming device body into, described the 2nd support part supports the 2nd is supported portion, with the described the 1st, the the 1st, the 2 of the 2nd support and correspondence is supported portion, makes described component body be positioned at the precalculated position in the image forming device body;

Idler shaft is located on the described component body;

Solid of revolution comprises rotator shaft, and described solid of revolution gear is located on this rotator shaft, and this solid of revolution turns round around rotator shaft, is configured to and described picture mounting body subtend, drives this solid of revolution from main drive gear through idle pulley and solid of revolution gear transmission.

In the image processing system of above-mentioned (18), it is characterized in that (19) described the 1st support is provided with bearing, support the described the 1st pivotally and be supported portion.

In the image processing system of above-mentioned (18) or (19), it is characterized in that (20) the described the 2nd is supported portion for bearing the hole, so as to reduce that revolution because of main drive gear causes be applied to external force influence on the idle pulley from main drive gear.

In the image processing system of above-mentioned (20), it is characterized in that (21) the described hole of bearing is the slotted hole shape, has long limit, this relative external force direction in length limit has a predetermined angular, and the total tangential direction of described relatively idle pulley of described external force and main drive gear has pressure angle.

In the image processing system of above-mentioned (21), it is characterized in that (22) predetermined angular of described relative external force direction is roughly the right angle.

In the image processing system of above-mentioned (18) or (19), it is characterized in that (23) described the 2nd support is formed on an end of described main output shaft, in an end of this main output shaft bearing is installed, it is chimeric that described bearing and the described the 2nd is supported portion.

In the image processing system of above-mentioned (20), it is characterized in that (24) the described hole of bearing is provided with chamfered section, in the time of in cartridge processing is packed image forming device body into, described the 2nd support is imported the described hole of bearing.

In the image processing system of above-mentioned (18) or (19), it is characterized in that (25) described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, and described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

(26) in the image processing system of above-mentioned (18) or (19), it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.

According to the present invention, can stop or effectively suppress when the body gear turns round, be the banded irregular of the toner picture that looks like on the mounting body of being formed on of causing of main cause because of this body gear is applied to external force on the idle pulley.

According to the present invention, the axle of the base side output shaft of support body gear and fixed bearing solid of revolution gear all relative component body is positioned, and therefore, can reduce the deviation of distance between gear.And, at image forming device body and component body support body side output shaft, can effectively suppress the deflection of base side output shaft, it is irregular to prevent that revolution takes place on this base side output shaft, can form high-quality toner picture on picture mounting body.

According to the present invention, be installed in the cartridge processing that constitutes on the light sensitive body assembly being driven assembly, can improve the positional precision that this is driven the relative image forming device body of assembly.

Description of drawings

Fig. 1 is the summary vertical cross-section diagram of cartridge processing and other treatment facility;

Fig. 2 is partial cross section's planimetric map of the cartridge processing of Fig. 1;

Fig. 3 is the oblique view when rear side is seen cartridge processing;

Fig. 4 is an expression solid of revolution gear, idle pulley, body gear meshing state description figure;

Fig. 5 is the key diagram that is applied to the power on the idle pulley from the body gear;

Fig. 6 is partial cross section's planimetric map of the cartridge processing of Fig. 1;

Fig. 7 is the oblique view when rear side is seen cartridge processing;

Fig. 8 is the engagement key diagram of expression solid of revolution gear and idle pulley;

Fig. 9 is that the position concerns key diagram between component body in cartridge processing is installed to image forming device body time the and the base side output shaft;

Figure 10 is pushed in the image forming device body key diagram when installing with cartridge processing;

Figure 11 is pushed in the image forming device body key diagram when installing with cartridge processing;

Figure 12 is installed in the image forming device body key diagram of installing when finishing with cartridge processing;

Figure 13 is from the skeleton diagram of CD-ROM drive motor to the drive transmission device of base side output shaft;

Figure 14 is the key diagram when installing of cartridge processing being pushed in the image forming device body of another embodiment;

Figure 15 is the key diagram of installing in the image forming device body when finishing that cartridge processing is installed to embodiment illustrated in fig. 14;

Figure 16 is the right hand view as the inner schematic configuration of color printer of one embodiment of the invention;

Figure 17 is the left surface figure of expression cartridge processing;

Figure 18 is its oblique view;

Figure 19 is the left surface figure of supporting side plate in the left side of expression light sensitive body assembly;

Figure 20 is the left surface figure of supporting side plate in the left side of expression developing device;

Figure 21 is the supporting side plate in left side of expression developing device and the horizontal sectional view of drive system;

Figure 22 is the left surface figure of the drive system of expression developing device;

Figure 23 is provided with the right hand view of intermediate transfer drum as the inner schematic configuration of color printer of the indirect transfer printing mode of intermediate transfer body;

Figure 24 is the right hand view of the inner schematic configuration of color printer of direct transfer printing mode;

Figure 25 is the right hand view of the inner schematic configuration of monochrome printers.

Embodiment

Below, preferred embodiment that present invention will be described in detail with reference to the accompanying.

First embodiment

Fig. 1 is mounted in the cartridge processing of institute's allocation in the image forming device body and the summary vertical cross-section diagram of other treatment facility.The cartridge processing 1 here is provided with the picture mounting body 2 that is made of the drum type photoreceptor and as the developing device 3 of solid of revolution assembly one example, is being connected becoming one as mounting body 2 with developing device 3 removable jew ground.Developing device 3 is provided with developer roll 4 and component body 6, and described developer roll 4 is configured to and picture mounting body 2 subtends as solid of revolution one example, and described component body 6 is supporting the axle 5 of described developer roll 4, and it can be turned round.Described axle 5 can form as one with developer roll 4, perhaps links into an integrated entity with described developer roll 4.Component body 6 is provided with development housing 7, is wherein taking in dry process development agent D, and described developer roll 4 is configured in this development housing 7.Also can be only by development housing constituent components body.

When forming the image action, driving is turned round towards counterclockwise shown in Figure 1 as mounting body 2, at this moment, make charged with the polarity that sets by charging roller 8 as mounting body 2, penetrate and write light inlet L from exposure device (not diagram), irradiation like this, forms electrostatic latent image as charged of mounting body 2 on as mounting body 2.

On the other hand, drive the developer roll 4 of developing device 3 towards revolution clockwise shown in Figure 1, at this moment, mounting and transport developer D on the periphery of developer roll 4 by this developer, is formed on as the electrostatic latent image on the mounting body 2 and obtains developing, but, become the toner picture by videoization.

Supply with transfer printing material P from paper feed (not diagram), be transported along the arrow A direction.By the effect of transfer roll 13, described toner looks like to be transferred on the described transfer printing material P.This transfer printing material P breaks away from as behind the mounting body 2, by fixing device (not diagram), by the effect of heat and pressure, toner as photographic fixing on described transfer printing material P.

Also can with as the toner on the mounting body 2 as transfer printing on the transfer printing material that constitutes by the intermediate transfer body, again the toner on this intermediate transfer body is looked like to be transferred on the final transfer printing material.

After toner looks like to be transferred on the transfer printing material P, attached to removing by cleaning assemblies 9 as the residual toner of the transfer printing on the mounting body.The cleaning assemblies 9 here is provided with cleaning brush 11 and cleaning balde 12, described cleaning brush 11 is bearing on the component body 10 pivotally, described cleaning balde 12 is bearing on the component body 10, by the synergy of cleaning brush 11 and cleaning balde 12, remove the residual toner of transfer printing on the picture mounting body.In the cleaning assemblies 9 of present embodiment, constitute the cleaning housing by component body 10.

Fig. 2 is partial cross section's planimetric map of cartridge processing 1 shown in Figure 1, in the figure, charging roller 8 shown in Figure 1, cleaning assemblies 9 diagrams are omitted.Fig. 3 is the oblique view when rear side is seen cartridge processing.

As shown in Figure 2, forward flange dish 15, rear stub 16 is pressed into each end of length direction that is fixed on the picture mounting body 2 that forms drum type respectively, driving shaft 17 as the mounting body and function passes described two

ring flanges

15,16 center pit, driving shaft 17 supports as mounting body 2 by ring flange 15,16.Driving shaft 17 is bearing in freely rotating by bearing on the back side panel 18 and support plate 19 of rear side of image forming device body 14, and described support plate 19 is fixed on the described back side panel 18.

Form opening 21 on the front side board 20 of the front side of image forming device body 14, panel 22 is positioned on this opening 21, and the anterior end of described driving shaft 17 is bearing on this panel 22 with freely rotating by bearing.Correctly positioning and fixing is on described front side board 20 for described panel 22, and front side board 20 loads and unloads relatively.Like this, correctly obtain the location as mounting body 2 relative image forming device body 14.Symbol 50 expressions among Fig. 2 are positioned at the Qianmen of described front side board 20 front sides.

Center pit at the ring flange 16 of rear side forms many teeth, and in addition, fixing on driving shaft 17 is to close parts 23, is to close to form tooth 24 on the parts 23 at this, and the tooth that the center pit of described rear side ring flange 16 forms meshes with this tooth 24.

Have, fixing gear 25 at the rear section of driving shaft 17, gear 26 is bearing on back side panel 18 and the support plate 19 with freely rotating, described gear 25 and gear 26 engagements.If by 26 revolutions of motor (not diagram) driven wheel, this revolution is delivered to driving shaft 17 by gear 25, the revolution of driving shaft 17 is by being to close parts 23 and rear side ring flange 16 is delivered to as mounting body 2.Like this, be driven revolution towards counterclockwise shown in Figure 1, carry out described image and form action as mounting body 2.

As shown in Figures 2 and 3, the component body 6 of developing device 3 is provided with front side side plate 27 and rear side side plate 28, and the axle 5 of developer roll 4 is bearing on the described

side plate

27,28 pivotally by bearing.Solid of revolution gear 29 is fixed on the rear end of axle 5, and idler shaft 30 (with reference to Fig. 3) is fixed on the rear side side plate 28 of component body 6, and idle pulley 31 is bearing on this idler shaft 30 with freely rotating, this idle pulley 31 and described solid of revolution gear 29 engagements.Also can idle pulley 31 be fixed on this idler shaft so that idler shaft 30 is bearing on the component body 6 with freely rotating.As long as idle pulley 31 is bearing on the component body 6 pivotally by idler shaft 30.Intermeshing some idle pulleys also can be set.

As mentioned above, the solid of revolution assembly that constitutes as developing device 3 is provided with solid of revolution gear 29 and at least one idle pulley 31.Described solid of revolution gear 29 be fixed on as the developer roll 4 of solid of revolution one example the axle 5 on, described idle pulley 31 is being supported pivotally by idler shaft 30 relative component bodies 6.

On the other hand, as shown in Figure 2, fulcrum 32 is bearing on the back side panel 18 and support plate 19 of image forming device body 14 with freely rotating by bearing, and body gear 33 is fixed on this fulcrum 32.As shown in Figure 3, described body gear 33 and described idle pulley 31 engagements.Drive fulcrum 32 revolutions by motor (not diagram).Like this, solid of revolution gear 29 is by at least one idle pulley 31, is connected with body gear 33 on being bearing in image forming device body 14 pivotally.In the present invention, above-mentioned body gear is also referred to as main drive gear, and the axle that this body gear is installed is also referred to as main output shaft.

If the action of described motor drives body gear 33, its revolution is delivered to the axle 5 of developer roll by idle pulley 31 and solid of revolution gear 29, so developer roll 4 is driven revolution clockwise towards shown in Figure 1, carries out described developing operation.Fig. 4 is an expression solid of revolution gear 29, idle pulley 31, the engagement key diagram of body gear 33.

As shown in Figures 2 and 3, dispose

positioning element

34,35 respectively,, be located by connecting mutually as the axle 5 of mounting body 2 and developer roll 4 by positioning

element

34,35 in the outside of each end of length direction of component body 6.That is, be provided with and driving shaft 17 concentric

cyclic lugs

36,37 at each the

end flange dish

15,16 that is fixed on picture mounting body 2, at this

cyclic lug

36,37 outer peripheral face by bearing 38,39, is entrenched in hole 40 pivotally, in 41, described

hole

40,41 is formed on each positioning element 34,35.The axle 5 of developer roll 4 is entrenched on each

positioning element

34,35 pivotally also by bearing 51,52.Like this, obtain the location as mounting body 2 and developer roll 4.

In addition, form the secondary standard hole 42 that is made of slotted hole on rear side positioning element 35, the secondary standard pin 43 that is fixed on the component body 6 is entrenched in the described secondary standard hole 42.Equally, as shown in Figure 2, form the secondary standard hole 53 that is made of slotted hole on front side positioning element 34, secondary standard pin 43 is entrenched in the described secondary standard hole 53.Like this, by the secondary

standard hole

42,53 that makes secondary standard pin 43 be entrenched in to be formed on each

positioning element

34,35, forbid the central axis revolution of component body 6 around developer roll 4.

As mentioned above, correctly be located by connecting mutually, constituted the cartridge processing 1 of one as mounting body 2 and developer roll 4.And, correctly limited as the distance between the central axis of the central axis of mounting body 2 and developer roll 4.Like this, example like that as shown, when separating the configuration of minim gap subtend as mounting body 2 and developer roll 4, this gap can correctly be kept, when joining the subtend configuration mutually as mounting body 2 and developer roll 4, this pressure that joins can correctly obtain restriction, no matter which kind of occasion can both form high-quality toner picture on as mounting body 2.

In the cartridge processing 1 of present embodiment, as shown in Figure 2, screw 44,54 inserts respectively and is formed on each positioning element 34, in the secondary

standard hole

53,42 on 35, be screwed in the screw that is formed in the secondary standard pin 43 fastening, like this, secondary standard pin 43 is fixed on the positioning element 34,35.By with component body 6 and

positioning element

34,35 connections fastened to each other, can prevent the inclination of the idler shaft 30 that causes because of component body 6 deflections, prevent idle pulley 31 and with its meshed gears 29, the variation of the axle base between 33, it is irregular to suppress gearing mesh, improves the quality that is formed on the toner picture on the picture mounting body 2.

And, in the cartridge processing 1 of present embodiment, secondary standard pin 43 is fitted to the secondary standard hole 53 that is formed on the front side positioning element 34 and is formed in the secondary standard hole 42 on the rear side positioning element 35, use general pin as this secondary standard pin 43, axle 5 almost parallels of these secondary standard pin 43 relative developer rolls 4 extend.Like this, the front part of secondary standard pin 43 and rear section are in concentric shape position, can prevent the idle pulley 31 that tilts to cause because of component body 6 and the variation of the axle base between the body gear 33, can form high-quality toner picture on picture mounting body 2.

As mentioned above, the

ring flange

15,16 that is fixed on the picture mounting body 2 is fitted on the driving shaft 17 that is bearing in pivotally on the image forming device body 14, therefore, can correctly locate as mounting body 2 relative image forming device body 14.And, as shown in Figures 2 and 3, being arranged on register pin 45 on the rear side positioning element 35 is fitted in the pilot hole 55 on the back side panel 18 that is formed on image forming device body 14, the register pin 46 that is arranged on the front side positioning element 34 is fitted in the pilot hole 56 that is formed on panel 22, stop the central axis revolution of cartridge processing 1, make cartridge processing 1 whole image forming device body 14 relatively correctly locate around picture mounting body 2.

In order to take out cartridge processings 1 from image forming device body 14, open Qianmen 50 shown in Figure 2, unload lower panel 22 from front side board 20, then, with cartridge processing 1 by the arrow B direction forward layback go out.At this moment, driving shaft 17 remains in the image forming device body, and the body gear 33 of the idle pulley 31 of cartridge processing 1 and image forming device body side breaks away from.Like this, with cartridge processing 1 be fetched into image forming device body outer after, by from unloading

positioning element

34,35, can separate as mounting body 2 and developing device 3 as mounting body 2 and developing device 3.

By the operation opposite with aforesaid operations, can be with cartridge processing 1 position that set of location and installation in image forming device body correctly.On cartridge processing 1, form gathering sill (not diagram), fixed guide on image forming device body 14 (not diagram), with cartridge processing 1 forward layback go out or when pushing the inboard, gathering sill embedded guide rail, slide along this guide rail.

As mentioned above, cartridge processing 1 is installed in the image forming device body, carries out image and form when moving, rotating body gear 33 is applied with external force to idle pulley 31.Symbol 33P among Fig. 5 represents the pitch circle of body gear 33, and symbol 31P represents the pitch circle of idle pulley 31, during 33 revolutions of body gear, T is the common tangent line of above-mentioned pitch circle, active line S departs from pressure angle α from this common tangent line T, from body gear 33, applies external force F along the direction of this active line S to idle pulley 31.Therefore, if said structure, then idler shaft 30 is because of this power F flexural deformation vibration periodically, and this vibration transfer is to picture mounting body 2, be formed on can take place as the toner picture on the mounting body 2 banded irregular.

So in the cartridge processing 1 of present embodiment, as shown in Figure 3-Figure 5, the free end side of idler shaft 30 is fitted in the hole 47 that is formed on the positioning element 35, is bearing on this positioning element.Like this, during 33 revolutions of body gear, the external force F that is applied on the idle pulley 31 from this body gear 33 bears (absorb) by positioning element 35, and idler shaft 30 is maintained at positioning element 35.This idler shaft 30 is born by positioning element 35, makes idler shaft 30 not be subjected to external force F and flexural deformation.Like this, can stop or effectively suppress idler shaft 30, can prevent that the toner picture that is formed on the picture mounting body 2 from taking place banded irregular because of be applied to the caused vibration of external force F of idle pulley 31 from body gear 33.

Intermeshing some idle pulleys are bearing in occasion on the component body 6 pivotally by each idler shaft, and each idler shaft also can be maintained at positioning element 35, and the external force that is applied on each idle pulley is born by positioning element.Like this, can obtain high-quality toner picture.

In the cartridge processing 1 of present embodiment, as shown in Figure 4, the base end part of idler shaft 30 is fixed on the component body 6, and idle pulley 31 is bearing on the idler shaft 30 pivotally by bearing.At this moment, because positioning element 35, forbid that idle pulley 31 moves at axis direction, obtains the location at this axis direction.In example shown in Figure 4, form hub portion 48 on the positioning element 35, the flange part 57 and the idle pulley 31 of this hub portion 48 and idler shaft 30 join, and forbid that this idle pulley 31 moves along its axis direction.By this structure, can save the special-purpose member that makes that idle pulley 31 is located along its axis direction, reduce the cost of cartridge processing 1.

Above, the cartridge processing 1 that is provided with picture mounting body and developing device 3 has been described, still, other treatment facilities cleaning assemblies 9 for example shown in Figure 1 also can be connected with picture mounting body 2, make this cleaning assemblies 9 become an inscape of cartridge processing 1, constitute cartridge processing.

The solid of revolution of illustrated cartridge processing 1 is made of developer roll 4, the solid of revolution assembly is made of developing device 3, and developer roll 4 mountings are transported developer D, forms the toner picture by this developer D on picture mounting body 2, but, also can be with other various morphosis cartridge processings 1.For example, can constitute solid of revolution by cleaning brush shown in Figure 1 11, constitute the solid of revolution assembly by cleaning assemblies 9, to be formed on as the toner on the mounting body 2 as after transfer printing is on the transfer printing material, remove attached to the residual toner of transfer printing on the picture mounting body 2 by cleaning brush 11 effects, constitute cartridge processing.

Second embodiment

Second embodiment also describes with reference to Fig. 1, when forming the image action, driving is turned round towards counterclockwise shown in Figure 1 as mounting body 2, at this moment, feasible charged with the polarity that sets by charging roller 8 as mounting body 2, to penetrate and write light inlet L from exposure device (not diagram), irradiation is as charged of mounting body 2, like this, on as mounting body 2, form electrostatic latent image.

Fig. 6 is partial cross section's planimetric map of cartridge processing 1 shown in Figure 1, in the figure, charging roller 8 shown in Figure 1, cleaning assemblies 9 diagrams are omitted.Fig. 7 is the oblique view when rear side is seen cartridge processing 1.

As shown in Figure 6, forward flange dish 15, rear stub 16 is pressed into each end of length direction that is fixed on the picture mounting body 2 that forms drum type respectively, driving shaft 17 as the mounting body and function passes described two

ring flanges

Form opening 21 on the front side board 20 of the front side of image forming device body 14, panel 22 is positioned on this opening 21, and the anterior end of described driving shaft 17 is bearing on this panel 22 with freely rotating by bearing.Correctly positioning and fixing is on described front side board 20 for described panel 22, and front side board 20 loads and unloads relatively.Like this, correctly obtain the location as mounting body 2 relative image forming device body 14.Symbol 50 expressions among Fig. 6 are positioned at the Qianmen of described front side board 20 front sides.

As shown in Figure 6, the component body 6 of developing device 3 is provided with front side side plate 27 and rear side side plate 28, and the axle 5 of developer roll 4 is bearing on the described

side plate

27,28 pivotally by bearing 60,61, and relative component body 6 is positioned.Like this, component body 6 is the axle 5 of bearing and turning body pivotally, plays positioning action.Solid of revolution gear 29 is fixed on the rear end of axle 5.

As shown in Figures 7 and 8, idler shaft 30 is positioned on the rear side side plate 28 that is fixed on component body 6, and idle pulley 31 is bearing on this idler shaft 30 with freely rotating by bearing 62.This idle pulley 31 and described solid of revolution gear 29 engagements.Also can idle pulley 31 be fixed on this idler shaft so that idler shaft 30 is bearing on the component body 6 with freely rotating.No matter which kind of situation, idle pulley 31 is bearing on the component body 6 pivotally by idler shaft 30.

As mentioned above, the solid of revolution assembly that constitutes as developing device 3 is provided with solid of revolution gear 29, described solid of revolution gear 29 be fixed on as the developer roll 4 of solid of revolution one example the axle 5 on, the solid of revolution assembly of present embodiment also is provided with idle pulley 31, and it is being supported pivotally by idler shaft 30 relative component bodies 6.

On the other hand, as Fig. 6 and shown in Figure 9, base side output shaft 32 is bearing in pivotally by bearing 63 in the benchmark mounting hole 75 of back side panel 18 of image forming device body 14, and body gear 33 is bearing on this base side output shaft 32.As shown in Figure 7, under the state of the institute's allocation in cartridge processing 1 is installed to image forming device body 14, this body gear 33 and described idle pulley 31 engagements.At this moment, also body gear 33 can be fixed on the base side output shaft 32, form as one, in the illustrated embodiment, though body gear 33 relative base side output shafts 32 are not done relative revolution, but, can move along the axis direction of base side output shaft 32, be bearing in like this on this base side output shaft 32.

As mentioned above, in the image processing system of present embodiment, solid of revolution gear 29 is connected with body gear 33 by an idle pulley 31.Also some idle pulleys can be set, be bearing in pivotally on the component body, make solid of revolution gear 29 be connected with body gear 33 by these idle pulleys by idler shaft.Perhaps also can idle pulley be set, make solid of revolution gear 29 directly be connected with body gear 33.No matter which kind of occasion, under the state when cartridge processing 1 is installed to image forming device body 14 in, make that solid of revolution gear 29 is indirect or directly be connected with body gear 33.

By described base side output shaft 32 revolutions of the drive motor that is arranged on the image forming device body side.In illustrated example, as Fig. 6, shown in 9, belt pulley 64 is fixed on the base side output shaft 32, simultaneously, as shown in figure 13, as transmission system one example, CD-ROM drive motor 65 is fixedly supported upon on the image forming device body, driven wheel 71 is fixed on the output shaft of this CD-ROM drive motor 65, this driven wheel 71 and another gear 72 engagements, and driving side belt pulley 66 is coaxial fixing with this gear 72, synchronous belt 67 volumes hang on the belt pulley 64,66.If CD-ROM drive motor 65 actions, gear 71,72 is passed through in its revolution, driving side belt pulley 66, and synchronous belt 67, and slave end belt pulley 64 is delivered to base side output shaft 32.Like this, by CD-ROM drive motor 65, revolution is delivered to base side output shaft 32, the revolution of base side output shaft 32 is by body gear 33, idle pulley 31, solid of revolution gear 29 are delivered to the axle 5 of developer roll 4, so, developer roll 4 is driven revolution clockwise towards shown in Figure 1, carries out described developing operation.When omitting idle pulley, 33 direct and solid of revolution gear 29 engagements of body gear are transmitted revolution from this body gear 33 to solid of revolution gear 29.

As Figure 6 and Figure 7, dispose

positioning element

34,35 respectively in the outside of each end of length direction of component body 6, by positioning

element

34,35, be located by connecting mutually as the axle 5 of mounting body 2 and developer roll 4.That is, be provided with and driving shaft 17 concentric

cyclic lugs

36,37 at each the

end flange dish

15,16 that is fixed on picture mounting body 2, at this

cyclic lug

hole

positioning element

In addition, form the secondary standard hole 42 that is made of slotted hole on rear side positioning element 35, the secondary standard pin 43 that is fixed on the component body 6 is entrenched in the described secondary standard hole 42.Equally, as shown in Figure 6, form the secondary standard hole 53 that is made of slotted hole on front side positioning element 34, secondary standard pin 43 is entrenched in the described secondary standard hole 53.Like this, by the secondary

standard hole

positioning element

In the cartridge processing 1 of present embodiment, as shown in Figure 6, screw 44,54 insertions are formed on each positioning element 34, secondary standard hole 53 on 35, in 42, be screwed in the screw that is formed in the secondary standard pin 43 fastening, like this, by with component body 6 and

positioning element

34,35 connections fastened to each other, can prevent the inclination of the idler shaft 30 that causes because of component body 6 deflections, prevent idle pulley 31 and with its

meshed gears

29,33 between the variation of axle base, it is irregular to suppress gearing mesh, improves the quality that is formed on the toner picture on the picture mounting body 2.

As mentioned above, be fixed on

ring flange

15,16 on the picture mounting body 2 and be fitted to relative image forming device body 14 and be positioned on the driving shaft 17 of supporting, therefore, can correctly locate as mounting body 2 relative image forming device body 14.And, as Figure 6 and Figure 7, being arranged on register pin 45 on the rear side positioning element 35 is fitted in the pilot hole 55 on the back side panel 18 that is formed on image forming device body 14, the register pin 46 that is arranged on the front side positioning element 34 is fitted in the pilot hole 56 that is formed on panel 22, stop the central axis revolution of cartridge processing 1, make cartridge processing 1 whole image forming device body 14 relatively correctly locate around picture mounting body 2.

In order to take out cartridge processings 1 from image forming device body 14, open Qianmen 50 shown in Figure 6, unload lower panel 22 from front side board 20, then, with cartridge processing 1 by the arrow B direction forward layback go out.At this moment, driving shaft 17 remains in the image forming device body, and the idle pulley 31 of cartridge processing 1 breaks away from the body gear 33 that is bearing on the image forming device body.Like this, with cartridge processing 1 be fetched into image forming device body outer after, by from unloading

positioning element

In the cartridge processing 1 of present embodiment, as shown in Figure 7 and Figure 8, the free end side of idler shaft 30 is fitted in the hole 47 that is formed on the positioning element 35, is bearing on this positioning element 35.Like this, during 33 revolutions of body gear, born by positioning element 35 from the external force that this body gear 33 is delivered on the idle pulley 31, idler shaft 30 is maintained at positioning element 35.This idler shaft 30 is born by positioning element 35, makes idler shaft 30 not be subjected to external force and flexural deformation.Like this, can stop or effectively suppress idler shaft 30, can prevent that the toner picture that is formed on the picture mounting body 2 from taking place banded irregular because of be applied to the caused vibration of external force of idle pulley 31 from body gear 33.

Intermeshing some idle pulleys are bearing in occasion on the component body pivotally by each idler shaft, and each idler shaft also can be maintained at positioning element, and the external force that is applied on each idle pulley is born by positioning element.Like this, can obtain high-quality toner picture.

In the cartridge processing 1 of present embodiment, as shown in Figure 8, the base end part of idler shaft 30 is fixed on the component body 6, and idle pulley 31 is bearing on the idler shaft 30 pivotally by bearing 62.At this moment, because positioning element 35, forbid that idle pulley 31 moves at axis direction, obtains the location at this axis direction.In example shown in Figure 8, form hub portion 48 on the positioning element 35, the flange part 57 and the idle pulley 31 of this hub portion 48 and idler shaft 30 join, and forbid that this idle pulley 31 moves along its axis direction.By this structure, can save the special-purpose member that makes that idle pulley 31 is located along its axis direction, reduce the cost of cartridge processing 1.

In above-mentioned image processing system, the axle 5 of solid of revolution gear 29 and the idler shaft 30 of idle pulley 31 are bearing on the component body 6 of developing device 3 pivotally, body gear 33 is bearing on the base side output shaft 32 that is arranged in the image forming device body 14, if only adopt said structure, since each assembling tolerance stack, the centreline spacing defection generation deviation of the gear that intermeshes.That is, as shown in Figure 7, when idle pulley 31 was set, deviation can take place in the distance between center lines L1 of this idle pulley 31 and body gear 33.When idle pulley 31 is not set, when solid of revolution side gear 29 directly meshed with body gear 33, deviation can take place in the distance between center lines L2 of gear 29,33.Like this, if intermeshed

gear

31,33 or 29,33 distance between center lines is involutory just when big deviation takes place, revolution can take place transmit irregularly, consequent vibration transfer is to picture mounting body 2, is difficult to avoid the toner picture element amount that is formed on the picture mounting body inferior.

So, in the image processing system of present embodiment, as Fig. 7 and shown in Figure 9, on the side plate 28 of the rear side of component body 6, form datum hole 68, when cartridge processing 1 was installed in the image forming device body 14, the anterior end of base side output shaft 32 was fitted to pivotally by bearing 69 and obtains the location in the described datum hole 68.On the other hand, as mentioned above, the axle 5 relative component bodies 6 of idler shaft 30 and developer roll 4 are positioned.When some idle pulleys was set, each the idler shaft relative component body 6 that supports each idle pulley also was positioned.Like this, the total relatively body assembly 6 of idler shaft 30 of the base side output shaft 32 of support body gear and supporting idle pulley 31 obtains the location.Therefore, the distance between center lines L1 of idle pulley 31 and body gear 33 can not make this distance L 1 remain on the size that sets with high precision because of deviation takes place in the dimensional tolerence accumulation.Equally, when idle pulley 31 not being set, directly the solid of revolution side gear 29 of engagement and the distance between center lines L2 of body gear 33 also can remain on the size that sets with high precision.Like this, during the gear revolution, it is irregular to suppress to take place the revolution transmission, prevents vibration, can improve the toner picture element amount that is formed on the picture mounting body.

As Fig. 6 and shown in Figure 9, base side output shaft 32 is bearing on the back side panel 18 of image forming device body 14 pivotally by bearing 63, for the relative image forming device body in more strong ground supports this base side output shaft 32, also can be shown in the dotted line imaginary line of Fig. 9, support plate 76 is fixed on the back side panel 18, base side output shaft 32 is bearing on this support plate 76 pivotally by bearing.With base side output shaft 32 at two places relative image forming device body 14 positioning supports.But if adopt this structure, base side output shaft 32 is entrenched in by bearing 69 in the datum hole 68 of component body 6 and is positioned, and therefore, base side output shaft 32 is aggregated in the supporting that is positioned of three places.If like this, make that three whole unanimities of bearing center axis are very difficult, therefore, can the generation deflection by the base side output shaft 32 of three bearing supportings.Like this,, then can turn round during its revolution irregularly, cause the toner picture generation concentration that is formed on the picture mounting body 2 irregular if deflections take place for base side output shaft 32.

So in the image processing system of present embodiment, as shown in Figure 9, a place of base side output shaft 32 is bearing in the benchmark mounting hole 75 pivotally by bearing 63, described mounting hole 75 is formed on the back side panel 18.Another place of base side output shaft 32 is fitted to pivotally by bearing 69 and obtains the location in the datum hole 68, and described datum hole 68 is formed on the component body 6 of the cartridge processing 1 that is installed in the image forming device body 14.Like this, the relative image forming device body 14 in one place of base side output shaft 32 is being supported pivotally, be installed in the image forming device body 14 under the state at cartridge processing 1, another place of base side output shaft 32 is entrenched in the datum hole 68 of the component body 6 that is formed at the solid of revolution assembly pivotally, obtains the location.

According to above-mentioned formation, base side output shaft 32 is supported at two places, therefore, big deflection can not take place in base side output shaft 32, it is irregular to prevent that this base side output shaft 32 from revolution taking place, and it is irregular as concentration to suppress toner, can form high-quality toner picture on picture mounting body 2.If at two place's support body side output shafts 32, even the proper alignment of the bearing of each supporting

place

63,69 problem more or less also can stop base side output shaft 32 that big deflection takes place.And, because base side output shaft 32 is supported at Liang Chu, can not harm its supporting stability.

As mentioned above, if make that relative image forming device body 14 is supported base side output shaft 32 at a place, when then cartridge processing 1 is not installed in the image forming device body 14, it is the center that base side output shaft 32 is in bearing 63 sides, presses the mobile slightly state of direction shown in the arrow C of Fig. 9.Therefore, when cartridge processing 1 is installed in the image forming device body 14, be difficult to sometimes make that base side output shaft 32 correctly is fitted in the datum hole 68 of component body 6.

So, in the image processing system of present embodiment, as mentioned above, body gear 33 can move along its axis direction relative to base side output shaft 32, simultaneously, as shown in Figure 9, compression helical spring 77 is wound on the base side output shaft 32, by this compression helical spring 77, cartridge processing 1 side of body gear 33 in being installed in image forming device body 14 energized, under state shown in Figure 9, the body gear 33 that is compressed volute spring 77 pressurizations stops because of the block piece 78 with 32 tyings of base side output shaft.

As shown in figure 10, when pushing cartridge processing 1 along arrow D direction and be installed in the image forming device body, base side output shaft 32 is the center with bearing 63 sides, how many run-off the straights, and therefore, idle pulley 31 is collided with body gear 33 sometimes.This occasion, along with cartridge processing 1 is pushed to the inboard, compression helical spring 77 compression deformations, the relative base side output shaft of body gear 33 32 relatively moves to the inboard.As shown in figure 10, the bearing 69 that is made of for example ball bearing is pressed into base side output shaft 32.

Then, as shown in figure 11, bearing 69 begins to embed the datum hole 68 that is formed on the component body 6, as shown in figure 12, finishes if bearing 69 embeds datum hole 68, then base side output shaft 32 is positioned, it tilt to be eliminated, and the colliding to obtain separating of body gear 33 and idle pulley 31 disappears body gear 33 volute spring 77 pushings by compression, relatively base side output shaft 32 towards the front side to relatively moving, because of block piece 78 stops.Like this, can make reliably that base side output shaft 32 and datum hole 68 are chimeric.

Also can be on base side output shaft 32 fixed bearing body gear 33, this occasion, as Figure 14 and shown in Figure 15, the length L 3 that needs to be formed on the datum hole 68 on the component body 6 is set at very long.When cartridge processing 1 was gone in thruster inwardly along arrow D direction shown in Figure 14, bearing 69 was chimeric with datum hole 68, and then the inclination of base side output shaft 32 is corrected.Therefore, as shown in figure 15, idle pulley 31 can not collided with body gear 33, can make base side output shaft 32 be fitted in the datum hole 68.Like this, according to Figure 14 and formation shown in Figure 15, can make base side output shaft 32 be fitted in the datum hole 68, but if according to this formation, the length L 3 that needs to be formed on the datum hole 68 on the component body 6 is set at very long, therefore, increase the cost and the weight of cartridge processing 1.In the image processing system of Fig. 9-shown in Figure 12, undesirable condition recited above can not take place.

With reference to Figure 13, comprise to the drive transmission device of base side output shaft 32 that the belt pulley 64 that is fixed on the base side output shaft 32 and volume hang over from CD-ROM drive motor 65 and be with 67 on this belt pulley 64.Therefore, when cartridge processing 1 is not installed in the image forming device body, even base side output shaft 32 tilts towards for example direction of arrow shown in Figure 13, corresponding, be with 67 actions flexibly, can not apply big external force, cause its damage drive transmission device.

As Fig. 9-Figure 12, Figure 14, shown in Figure 15, the edge portion towards body gear 33 sides of datum hole 68 forms chamfering 70, therefore, in the time of in cartridge processing 1 is installed to image forming device body 14, even base side output shaft 32 tilts, the anterior end of base side output shaft 32 is subjected to chamfering 70 guiding, can make the anterior end of base side output shaft 32 embed datum hole 68 reliably.

Base side output shaft 32 is fitted in the datum hole 68 by being located at this bearing 69 on 32, therefore, when in order to transmit driving, during 32 revolutions of base side output shaft, can reduce the sliding resistance that secondary standard hole 68 sides are subjected to, and can improve power transmission efficiency.

The cartridge processing 1 that is provided with picture mounting body 2 and developing device 3 has been described above, but, other treatment facilities cleaning assemblies 9 for example shown in Figure 1 also can be connected with picture mounting body 2, makes this cleaning assemblies 9 become an inscape of cartridge processing 1, constitutes cartridge processing.

The 3rd embodiment

Figure 16 is the right hand view as the color printer 101 inner schematic configuration of the image processing system of electrofax mode of third embodiment of the invention.Image forming part 103 is taken in the inside of the device body 102 of color printer 101, and light writes assembly 104, paper feeding cassette 105, fixing device 106 etc.

Image forming part 103 is by four 107Y of imaging portion, 107M, and 107C, 107K is positioned at the intermediate transfer assembly 108 of described imaging portion 107 downsides, secondary transfer printing bias voltage roller 109 formations such as grade.Y in the symbol, M, C, K represent yellow, magenta, cyan, black respectively.

Four 107Y of imaging portion, 107M, 107C, 107K form look different toner picture respectively.Four 107Y of imaging portion, 107M, 107C, the structure of 107K is identical, and each is by light sensitive body assembly 110, and is configured in charging roller 111 around the photoreceptor by the eletrophotography processing sequence, as the developing device 112 that is driven assembly, as photoreceptor cleaning assemblies 113 formations such as grade that are driven assembly.Described light sensitive body assembly 110 is provided with as the revolution columnar photoreceptor 110a freely as the mounting body.Four photoreceptor 110a uniformly-spaced configurations parallel to each other.When forming the image action, drive photoreceptor 110a revolution by motor (not diagram).

Charging roller 111 and photoreceptor 110a crimping, the driven revolution of photoreceptor 110a relatively.By high-voltage power supply (not diagram) this charging roller 111 is applied AC and DC bias voltage, make photoreceptor 110a surface charged to set the current potential homogeneous.

Developing device 112 is provided with development housing 114 and overlaps 115 as the roller shape development of solid of revolution, and described development cover is a developer mounting body, and local opening from described development housing 114 exposes.In development housing 114 inside, be provided with the 1st and transport spiral 116, the 2 and transport spiral 117, regulation scraper plate 118 etc.Development cover 115 inside are provided with magnet.

In development housing 114 inside, take in the two-component developing agent that the toner by magnetic carrier and electronegative property constitutes.This two-component developing agent transports spiral 116, the 2 by the 1st and transports spiral 117 and stir and transport, and frictional electrification is positioned on the surface of rotating described development cover 115.After regulation scraper plate 118 limits its bed thickness, be transported to the developing regional with photoreceptor 110a subtend, make toner be attached on the electrostatic latent image on photoreceptor 110a surface.Like this, on photoreceptor 110a, form the toner picture.Because develop, the toner in the two-component developing agent is consumed, along with the revolution of described development cover 115, this two-component developing agent is got back to development housing 114 inside.

Photoreceptor cleaning assemblies 113 is provided with for example cleaning balde 121 of urethane rubber system, these cleaning balde 121 front ends and photoreceptor 110a crimping.In order to improve clean-up performance, photoreceptor cleaning assemblies 113 is provided with electric conductivity hairbrush 122, and it contacts with photoreceptor 110a, and revolution freely.Drive this hairbrush 122 revolutions by motor (not diagram).This hairbrush 122 is applied bias voltage,, remove the toner on the photoreceptor 110a by driving revolution.The toner of removing from photoreceptor 110a by cleaning balde 121 and hairbrush 122 is accommodated in the inside of photoreceptor cleaning assemblies 113.After this, focus on the one-sided of photoreceptor cleaning assemblies 113, return developing device 112, utilize again by toner re-use device (not diagram) by reclaiming spiral (not diagram).

Intermediate transfer assembly 108 is provided with the ring-type intermediate transfer belt 131 as the intermediate transfer body.Intermediate transfer belt 131 is by driven roller 132, and backing roll 133,134 is setting up.Drive intermediate transfer belt 131 revolutions by motor (not diagram).

In intermediate transfer belt 131 inboards, corresponding with each imaging portion 107, be provided with four primary transfer bias voltage rollers 135 as the primary transfer body.Four primary transfer bias voltage rollers 135 are by the transfer position subtend configuration of intermediate transfer belt 131 with each photoreceptor 110a.Primary transfer bias voltage roller 135 is applied the primary transfer bias voltage, with the toner on photoreceptor 110a surface as transfer printing on intermediate transfer belt 131 surfaces.

At the sidepiece of intermediate transfer assembly 108, be provided with cleaning device 136, be used to clean intermediate transfer belt 131.

Secondary transfer printing bias voltage roller 109 applies the secondary transfer printing bias voltage by intermediate transfer belt 131 and the configuration of backing roll 133 subtends to secondary transfer printing bias voltage roller 109.As the record material paper S be clamped between secondary transfer printing bias voltage roller 109 and the intermediate transfer belt 131, with the toner on the intermediate transfer belt 131 as transfer printing on described recording chart S, this is called secondary transfer printing.

Light writes the upside that assembly 104 is configured in imaging portion 107, and laser radiation that will be corresponding with YMCK view data of all kinds forms electrostatic latent image on the surface of each photoreceptor 110a on each photoreceptor 110a surface.In the present embodiment, use laser scanning methods devices such as LASER Light Source and polygonal mirror to write assembly 104, also can use the mode of combination led array and imaging means as this light.

Paper S is accommodated in the paper feeding cassette 105, separates by pickup roller 137 many ground and supplies with paper S.Transport roller 138 by paper supply, registration roller 139 is sent to the secondary transfer printing position with this paper S.

Fixing device 106 applies heat and pressure by this transfer printing there being the paper S of toner picture, with this toner as photographic fixing on paper S.

The image that the electrofax processing of this color printer 101 is described forms action.The semiconductor laser that writes assembly 104 from light penetrates the laser corresponding with view data, is radiated on the surface of each photoreceptor 110a, forms electrostatic latent image on the surface of each the photoreceptor 110a that has charged.The toner of supplying with from each developing device 112 is attached on the described electrostatic latent image, becomes the toner picture.Primary transfer bias voltage roller 135 is applied the primary transfer bias voltage, by the transfer printing effect of this primary transfer bias voltage roller 135, order with described toner as transfer printing with the surface of the synchronization-moving intermediate transfer belt 131 of photoreceptor 110a.The residual toner of transfer printing that remains in photoreceptor 110a surface after the primary transfer is removed by photoreceptor cleaning assemblies 113, after this,, is provided with the back and forms image the photoreceptor 110a surface electricity that disappears by discharge system (not diagram).

Like this, be formed on the different superimposed transfer printing of toner picture order of the look on each photoreceptor 110a surface on intermediate transfer belt 131, form the color toner pictures on intermediate transfer belt 131 surfaces.From paper feeding cassette 105 paper supplies, paper S is sent into transfer position between secondary transfer printing bias voltage roller 109 and the intermediate transfer belt 131, the toner on the intermediate transfer belt 131 as secondary transfer printing on paper S.Secondary transfer printing bias voltage roller 109 is applied the secondary transfer printing bias voltage, and described secondary transfer printing is carried out by the transfer printing effect of this secondary transfer printing bias voltage roller 109.At fixing device 106, the paper S implementation photographic fixing of transfer printing chromatic colour toner picture to be handled, after photographic fixing was handled, paper S was arranged to the row's paper disc (not diagram) that is located on the device body 102.

In this formation, the present embodiment characteristic is described with reference to Figure 17-Figure 22.

Figure 17 is the left surface figure of expression cartridge processing 151, Figure 18 is its oblique view, Figure 19 is the left surface figure of supporting side plate 153 in the left side of expression light sensitive body assembly 110, Figure 20 is the left surface figure of supporting side plate 156 in the left side of expression developing device 112, Figure 21 is the supporting side plate 156 in left side of expression developing device 112 and the horizontal sectional view of drive system, and Figure 22 is the left surface figure of the drive system of expression developing device 112.

In the present embodiment, developing device 112 releasably is installed on the light sensitive body assembly 110, constitutes cartridge processing 151.

Light sensitive body assembly 110 is by photoreceptor 110a and a pair of supporting side plate 153 formations such as (only representing a side among the figure).The both ends of the revolving shaft 152 of the described photoreceptor 110a of described a pair of supporting side plate 153 supportings make revolving shaft 152 revolutions freely.On supporting side plate 153, form the 1st support holes portion 154, support the revolving shaft 152 of described photoreceptor 110a, make its revolution freely.At this, so-called " hole portion " is position around finger-hole and the hole that forms this hole.

In developing device 112, promptly the develop two ends of sleeve 155 of the revolving shaft of the cover 115 that develops are bearing on a pair of supporting side plate 156 that constitutes development housing 114 with freely rotating.After Figure 17, development housing 114 has omitted supporting side plate 156 with epigenesist.On supporting side plate 156, form the 2nd support holes portion 157, support described development sleeve 155, make its revolution freely.In the left part of development sleeve 155, fixedly the development sleeve gear 158.Idler shaft 159 is located on the supporting side plate 156 in left side, and idle pulley 160 is arranged on the described idler shaft 159 with freely rotating.Described development sleeve gear 158 and these idle pulley 160 engagements.Idle pulley 160 also meshes with driven wheel 162, and described driven wheel 162 is fixed on an end of the driving shaft of being located on the device body 102 161.That is, idle pulley 160 directly is connected with driven wheel 162.Therefore, if motor (not diagram) drives described driven wheel 162 revolutions, then rotary driving force is by driven wheel 162, and idle pulley 160, development sleeve gear 158 are delivered to described development sleeve 155, drive cover 115 revolutions of developing.In Figure 18, expression idle pulley 160 and the state that is disengaged being connected of driven wheel 162.

The mounting structure of developing device 112 relative light sensitive body assemblies 110 is described.On the supporting side plate 153 of light sensitive body assembly 110, form the 3rd support holes portion 163, support the both ends of the development sleeve 155 of described development cover 115, make its revolution freely.Like this, development sleeve 155 relative photoreceptor 110a are positioned, and become the state of fixed distance between the revolving shaft 152 of development sleeve 155 and photoreceptor 110a, developing device 112 relative light sensitive body assemblies 110 with the axle center of development sleeve 155 be center steering freely.

Below, the location structure of cartridge processing 151 relative device bodies 102 is described.Both ends the integrally formed the 1st at the revolving shaft 152 of photoreceptor 110a are supported portion 166.The 1st is supported portion's 166 chimeric the 1st supports (not diagram) that are formed on the device body 102 that are bearing in.Like this, the revolving shaft 152 of photoreceptor 110a obtains the location.

Form secondary standard hole portion 168 on the supporting side plate 156 in the left side of developing device 112, be supported portion as the 2nd, it is chimeric that the 2nd support 167 and the 2nd that is formed on driving shaft 161 ends is supported portion.The 2nd support 167 chimeric being bearing in this secondary standard hole portion 168.More particularly, at a distolateral bearing 169 that is provided with of driving shaft 161, this bearing 169 is chimeric with described secondary standard hole portion 168.At this, constitute the 2nd support 167 by driving shaft 161 and bearing 169.

Bearing 169 adopts ball bearing.At the entrance side of relative the 2nd support 167 of secondary standard hole portion 168, form the guide part 170 of chamfer shape, be used for the insertion of the 2nd support 167 is led.Secondary standard hole portion 168 forms the slotted hole shape, and its length direction is the direction towards photoreceptor 110a, and is set at towards the direction in the axle center of development sleeve 155.Like this, secondary standard hole portion 168 has the function that absorbs each dimensional tolerence etc.Therefore, in this structure, as primary standard, as secondary standard, make cartridge processing 151 be positioned in the device body 102 secondary standard hole portion 168 sides of developing device 112 revolving shaft 152 sides of the photoreceptor 110a of light sensitive body assembly 110.At this moment, developing device as primary standard, as secondary standard, obtains location at device body 102 with secondary standard hole portion 168 with development sleeve 155.At this, constitute support by the 1st support (not diagram) and the 2nd support 167.

As shown in figure 22, when 162 pairs of idle pulley 160 transmission of drive force of the driven wheel from be located at device body 102, apply power F1 from driven wheel 162 to idle pulley 160, the direction of this power F1 is the pressure angle α 1 from the engagement tangential direction T1 of gearing mesh portion towards the oblique driven wheel 162 of idle pulley 160 inclinations.Because this power F, the length direction of setting secondary standard hole portion 168 makes the idler shaft 159 of supporting idle pulley 160 and developing device 112 not move.That is, relative idle pulley 160 configuration driven gears 162 make that the long limit from the engagement tangential direction of idle pulley 160 and driven wheel 162 towards the relative secondary standard of the direction hole portion 168 of the pressure angle α 1 of the oblique driven wheel 162 of idle pulley 160 inclinations becomes vertical.

By this formation, cartridge processing 151 is the device body location relatively, since use light sensitive body assembly 110 photoreceptor 110a revolving shaft 152 and carry out as the secondary standard hole portion 168 of the supporting side plate 156 in the left side of the developing device 112 that is driven assembly, therefore, can keep the positional precision of the relative device body 102 of photoreceptor 110a.And, developing device 112 will develop cover 115 development sleeve 155 as primary standard, with secondary standard hole portion 168 as secondary standard, obtain the location at device body 102, therefore, the positional precision of developing device 112 relative device bodies 102 is than conventional art height, can suppress spacing skew between the gear of idle pulley 160 and driven wheel 162, and idle pulley 160 is good with being connected of driven wheel 162.Like this, can prevent to be changed to the irregular or vibration of revolution of cause because of spacing between the gear of idle pulley 160 and driven wheel 162.

Form the slotted hole shape as the 2nd secondary standard hole portion 168 that is supported portion, can absorb the dimensional tolerence of each one etc.

In developing device 112 sides secondary standard hole portion 168 is set, as secondary standard, the driving shaft 161 of energy operative installations body 102 sides can obtain the secondary standard of developing device 112 with easy structure as the secondary standard pin.

Be set to towards the direction of overlapping 115 as the development of solid of revolution as the 2nd long side direction that is supported the secondary standard hole portion 168 of portion, and, the driving force direction of transfer is the pressure angle α 1 from the engagement tangential direction of idle pulley 160 and driven wheel 162 towards the oblique driven wheel 162 of idle pulley 160 inclinations, vertical by making that this driving force direction of transfer is supported the long side direction of secondary standard hole portion 168 of portion as the 2nd relatively, can prevent that idler shaft 159 and developing device 112 from moving.

As the 2nd secondary standard hole portion 168 that is supported portion, form the guide part 170 of chamfer shape, be used for the insertion of the 2nd support 167 is led, when cartridge processing 151 when device body 102 is installed, even the position of driving shaft 161 and developing device 112 more or less is offset, also can pass through guide part 170 revisals, therefore, can install smoothly.

In the inside of cartridge processing 151, the distance of the revolving shaft 152 of development sleeve 155 and photoreceptor 110a is fixed, and therefore, it is irregular to reduce image color.

Be provided with bearing 169 at the 2nd support 167, driving shaft 161 can directly not contact with secondary standard hole portion 168.When bearing 169 for example is not set, driving shaft 161 directly contacts occasion with secondary standard hole portion 168, and sliding friction can take place, the revolution degradation in efficiency.And in the present embodiment,, can prevent to turn round degradation in efficiency by bearing 169 is set.

Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.

For example, in the above-described embodiments, developing device 112 is installed on the light sensitive body assembly 110, with its assembly that is driven as formation cartridge processing 151, but the present invention is not limited thereto, also photoreceptor cleaning assemblies 113 can be installed on the light sensitive body assembly 110, as the assembly that is driven that constitutes cartridge processing 151.This occasion is provided with the 2nd and is supported portion on photoreceptor cleaning assemblies 113, be provided for supporting the 2nd support that is supported portion at device body 102.Described support can be set at device body 102, is made as the driving shaft that is used to drive hairbrush 122 (not diagram) etc.

Have again, also developing device 112 and photoreceptor cleaning assemblies 113 can be installed on the light sensitive body assembly 110, as the assembly that is driven that constitutes cartridge processing 151.This occasion is arranged on developing

device

112 and 113 liang of sides of photoreceptor cleaning assemblies with the 2nd portion of being supported.

In the above-described embodiments, use intermediate transfer belt 131 as the intermediate transfer body, the color printer 101 of indirect transfer printing mode has been described, but the present invention is not limited thereto, as image processing system, also can be for example to adopt intermediate transfer drum 202 as shown in Figure 23 as the intermediate transfer body, the color printer 201 of indirect transfer printing mode, the perhaps color printer 203 of such as shown in figure 24 direct transfer printing mode, perhaps monochrome printers 204 like that as shown in figure 25.

Claims

1. a cartridge processing is contained in the image processing system removable jew, and this image processing system is provided with a main drive gear, and described cartridge processing comprises:

The picture carrier assembly is provided with picture mounting body;

The solid of revolution assembly, it comprises:

Component body;

Idler shaft is located on the described component body;

2. according to the cartridge processing described in the claim 1, it is characterized in that described idler shaft is fixed on the described component body,,, idle pulley is configured in a precalculated position by described positioning element along the axis direction of idler shaft.

3. according to the cartridge processing described in claim 1 or 2, it is characterized in that the described hole of bearing is the slotted hole shape, has long limit, this relative external force direction in length limit has a predetermined angular, and the total tangential direction of described relatively idle pulley of described external force and main drive gear has pressure angle.

4. according to the cartridge processing described in the claim 3, it is characterized in that the predetermined angular of described relative external force direction is roughly the right angle.

5. according to the cartridge processing described in claim 1 or 2, it is characterized in that, further comprise the secondary standard pin and be formed on secondary standard hole on the described positioning element, described secondary standard pin inserts in the described secondary standard hole, and fix with described positioning element, turn round around described rotator shaft to prevent component body.

6. according to the cartridge processing described in the claim 5, it is characterized in that described positioning element is configured in each end of described component body, fix that described secondary standard pin is along extending with the direction of the axis almost parallel of described solid of revolution by described secondary standard pin.

7. according to the cartridge processing described in claim 1 or 2, it is characterized in that described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, and described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

8. according to the cartridge processing described in claim 1 or 2, it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.

9. an image processing system is characterized in that, the cartridge processing of any is housed among the described claim 1-8 removable jew.

10. image processing system comprises:

Main drive gear:

The picture carrier assembly is provided with picture mounting body;

The solid of revolution assembly, it comprises:

Component body is provided with datum hole;

Idler shaft is located on the described component body;

11. the image processing system according to described in the claim 10 is characterized in that, described main drive gear can move along the axis direction of described main output shaft, and, energized towards the cartridge processing side.

12. the image processing system according to described in the claim 11 is characterized in that, described main output shaft is provided with spring, to described main drive gear along energizing towards the cartridge processing side direction.

13. the image processing system according to described in claim 10 or 11 is characterized in that, comprises that further the belt wheel that is fixed on the described main output shaft and volume hang over the band on this belt wheel, CD-ROM drive motor drives described main output shaft by described belt wheel and band.

14. the image processing system according to described in claim 10 or 11 is characterized in that described datum hole is provided with chamfered section, in the time of in cartridge processing is packed image forming device body into, the 2nd place of described main output shaft is imported described datum hole.

15. the image processing system according to described in claim 10 or 11 is characterized in that, the 2nd place of described main output shaft is fitted to described datum hole by bearing.

16. according to the image processing system described in claim 10 or 11, it is characterized in that described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

17. according to the image processing system described in claim 10 or 11, it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.

18. an image processing system comprises:

The 1st support;

The 2nd support;

Main drive gear;

Main output shaft, described main drive gear is provided thereon;

Cartridge processing, it comprises:

The solid of revolution assembly, it comprises:

Idler shaft is located on the described component body;

19. the image processing system according to described in the claim 18 is characterized in that, described the 1st support is provided with bearing, supports the described the 1st pivotally and is supported portion.

20. the image processing system according to described in claim 18 or 19 is characterized in that, the described the 2nd is supported portion for bearing the hole, so as to reduce that revolution because of main drive gear causes be applied to external force influence on the idle pulley from main drive gear.

21. according to the image processing system described in the claim 20, it is characterized in that the described hole of bearing is the slotted hole shape, has long limit, this relative external force direction in length limit has a predetermined angular, and the total tangential direction of described relatively idle pulley of described external force and main drive gear has pressure angle.

22. the image processing system according to described in the claim 21 is characterized in that, the predetermined angular of described relative external force direction is roughly the right angle.

23. the image processing system according to described in claim 18 or 19 is characterized in that, described the 2nd support is formed on an end of described main output shaft, in an end of this main output shaft bearing is installed, and it is chimeric that described bearing and the described the 2nd is supported portion.

24. the image processing system according to described in the claim 20 is characterized in that, the described hole of bearing is provided with chamfered section, in the time of in cartridge processing is packed image forming device body into, described the 2nd support is imported the described hole of bearing.

25. according to the image processing system described in claim 18 or 19, it is characterized in that described solid of revolution assembly is made of developing device, described solid of revolution is made of developer roll, described developer roll mounting is transported developer, forms the toner picture on described picture mounting body.

26. according to the image processing system described in claim 18 or 19, it is characterized in that, described solid of revolution assembly is made of cleaning assemblies, described solid of revolution is made of cleaning brush, with be formed on described look like to be transferred on the transfer printing material as the toner on the mounting body after, remove attached to the residual toner on the picture mounting body by the effect of described cleaning brush.