EP0248682A2 - Image formation apparatus - Google Patents
Image formation apparatus Download PDFInfo
- Publication number
- EP0248682A2 EP0248682A2 EP87305019A EP87305019A EP0248682A2 EP 0248682 A2 EP0248682 A2 EP 0248682A2 EP 87305019 A EP87305019 A EP 87305019A EP 87305019 A EP87305019 A EP 87305019A EP 0248682 A2 EP0248682 A2 EP 0248682A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- toner
- image formation
- image
- formation apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/10—Collecting or recycling waste developer
- G03G21/12—Toner waste containers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
- G03G21/1623—Means to access the interior of the apparatus
- G03G21/1633—Means to access the interior of the apparatus using doors or covers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1618—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit
- G03G2221/1621—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the cleaning unit re-use of cleaned toner
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/163—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the developer unit
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1663—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts having lifetime indicators
- G03G2221/1666—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts having lifetime indicators integer lifetimes of each other
Definitions
- This invention relates to an image formation apparatus having a unit to develop electrostatic latent images formed on an image carrier and a mechanism to recover waste toner.
- an electrostatic latent image is formed on a photosensitive agent which is the image carrier and this latent image is developed by a developer.
- the toner used for this developing method has been generally black. Recently, however, mono-color developing using where red, blue and other toners are used by changing the developing unit for installation to the main body of the equipment has been increasing. However, a compact image forming unit which including a developing system has not been developed.
- the object of this invention is to decrease the size of the unit which includes the developing equipment irrespective of the life of the image carrier by configuring the image formation unit with a first unit containing an image carrier and a second unit consisting of a developer and a waste toner recovery container.
- this investigation is intended for the easy replacement of the developing unit and discarding of the waste toner by just replacing the second unit which includes the developer.
- an image formation apparatus having a first unit consisting of an image carrier and at least a cleaner being held to one supporter and a second unit consisting of a developer to develop an electrostatic latent image formed on the image carrier, the said first and second unit being installed removably to the image formation apparatus, is provided.
- Fig. 1 is a schematic side sectional view of the electronic photocopying system according to this invention
- Fig. 2 is a general perspective view of the second unit
- Fig. 3 is a general perspective view of the first unit
- Fig. 4 is a perspective view of the copying machine with no second unit installed
- Fig. 5 is a perspective view of the copying machine with the second unit installed.
- Fig. 1 is a schematic sectional view of an electronic photocopier according to this invention.
- a drum-shaped photosensitive device 2 formed to generate a copied image is provided.
- the photosensitive device 2 is held with a drive mechanism, not shown, for rotation.
- a charger 3, light focuser/transmitter 4, developer 5, transferer 6, and cleaner 7 are arranged along the rotating direction to form the copying image.
- at least the photosensitive device 2, charger 3, and cleaner 7 are held in one case to configure the first unit 8.
- This first unit 8 is held with a guide supporter, not shown, on the equipment main body side and can be taken out or reinstalled by any one by using the mounting handle on the unit.
- An original stand 9 which is used to set the original and expose it with the exposure light source 10 is movably positioned on the copying machine 1.
- This original stand 9 is scanned in the lateral direction with a drive unit, not shown.
- the optical image obtained by the irradiation with the exposure light source 10 is projected on the optical conductive layer on the surface of the photosensitive device by the light focuser/transmitter 4.
- an electrostatic latent image is formed on the photosensitive device 2 according to the image of the original and this latent image is visualized by the developer 5, which is the second unit.
- a cleaner 7 is provided. This cleaner 7 pushes an elastic cleaning blade 70 to the surface of the photoelectric device 2 to scrape off the remaining toner on the rotating photosensitive device 2. The toner scraped off with the cleaning blade 70 is received by the waste toner receiver 7a positioned under the cleaning blade. At the position of this waste toner receiver 7a, a waste toner feeder 7b is provided for rotation.
- the waste toner feeder 7b carries the toner dropped to the waste toner receiver 7s in the direction of the rotating axis of the photosensitive device to the one side of the first unit.
- a feeder 7c to carry the toner whose carrying direction as shown in Fig. 3 makes a right angle to the previous carrying direction is provided in connection with the above described waste toner carrier 7b.
- This carrier 7c faces the waste toner recovery container 56 which is provided in a single unit with the developer 5 described later.
- the outlet port provided in the carrier 7c and the opening of the waste toner recovery container 56 are positioned to face each other.
- the transfer paper which was sent to the transfer position is separated from the surface of the drum of the photosensitive device 2 with the separator 11 after the transfer of the image and sent to the overheat fixer 13 along the feeding guide 12.
- the fixer 13 the image of the toner powder on the transfer paper is fixed by heat and pressure and the transfer paper after fixing is discharged to the paper discharger 14.
- Fig. 2 is a general perspective view of the second unit consisting of the developer 5 and waste toner recovery container 56.
- the cover 51 over the developing opening is separated to expose the magnetic brush of the toner generated on the developing sleeve and to mount it to the mounting position of the main body of the copying machine holding the second unit mounting handle 52.
- Number 54 indicates a positioning boss to be locked to the positioning hole 8a provided on the side of the first unit 8 and number 53 is a locking claw to hold the developer 5 when it is installed to the main body of the copying machine.
- Number 55 indicates the color of the toner at the time of mono-color copying and can be seen from the indicating window 1b at the front cabinet 1a.
- Number 56 is a vessel for recovering waste toner which is carried from the first unit and held in one unit with the developing system 5. They are replaced at the same time.
- Number 57 is the cover for the waste toner receiving port which is opened in the direction of the arrow when the second unit is mounted. It prevents the waste toner from overflowing when the unit is taken out. It is designed so that, when the above-described cover 57 is opened, this opening becomes coincident with the discharge port of the feeder 7c of the first unit.
- Fig. 3 is a general perspective view of the first unit 8 on the main body of the copying machine so as to be demounted from, or remounted to a main body of the copying machine.
- the first unit 8 in at least one case as described above, has a drum of photosensitive agent and a cleaner 7 to remove toner remaining on the surface of the photosensitive device.
- the waste toner removed from the surface of the photosensitive device 2 by the cleaner 7 is carried to the one side of the first unit by the feeder 7b, and then discharged from the discharge port by the feeder 7c.
- This feeder 7c is provided with cover 7d which moves in the direction of the arrow to open or close the discharge port.
- the cover 7d is opened opening the discharge port.
- the discharge port of the feeder 7c is provided so as to be coincident with the opening of the waste toner recovery container 56 of the second unit.
- the second unit cannot be installed unless the first unit 8 is installed to the main body of the copying machine.
- a guide for the second unit is configured.
- the first unit 8 is provided with a guide 8b as shown in Fig. 3.
- This guide 8b provided on the first unit 8 not only guides the second unit, but also serves to position the developing magnetic brush precisely to the surface of the drum of the photoelectric together with the positioning boss 54 provided in the second unit.
- Fig. 4 shows the condition that the said first unit is mounted.
- the first unit 8 is mounted to the main body of the copying machine 1.
- the second unit is inserted to the main body of the copying machine with its bottom part advancing along the guide 1c formed by a part of the frame of the main body of the copying machine.
- the second unit is led to the inner part by the guide 8b provided in the first unit 8 and connected to the image unit driver, not shown, in the inner part of the main body of the copying machine.
- the positioning boss 54 of the second unit is fitted to the positioning hole 8a of the first unit 8 and locked. Since it is not restrained and may jump out, it is hitched to the catch 1d of the guide 1c of the frame of the main body of the copying machine with the locking claw 53 provided on the unit.
- Fig. 5 shows the condition where the second unit is installed.
- the second unit is positioned to the first unit 8, and, while the main body of the copying machine is working, the toner remaining on the photosensitive device 2 is carried through each feeder and recovered to the recovery container 56 held in the second unit.
- the life of the second unit including the developer 5 has expired, for instance, when the toner of the developer 5 has been exhausted, only the second unit needs to be replaced. Therefore it is not necessary to increase the volume of the second unit including the developer 5 as a consequence of the life of the photosensitive device 2 in the first unit 8. Therefore, the second unit needs not correspond to the first unit and can be small.
- the recovery container 56 has no relation with the first unit 8 either and therefore its size can be freely determined. It is advisable to determine the size of the waste toner recovery container 56 based on the capacity of the developer 5 to contain the toner. For instance, the capacity may be determined so that the toner of the developer 5 of the second unit is exhausted before the life of the photosensitive device 2 has expired and the waste recovery container becomes almost filled with waste toner when the second unit is replaced. In other words, the size of the recovery container 56 may be determined so that the recovery container 56 is almost filled with waste toner when the first unit is replaced. Therefore, the service life does not have to be considered when the second and first unit are replaced. Especially, the first unit can be designed freely and can be small.
- the vessel to recover the waste toner which was recovered while the said unit was working is also replaced and therefore replacement is made in a short time and done easily.
- the image former is divided into two unit which have extremely different lives and as a result, each unit can be used effectively until its life has expired and can be small. While only certain embodiments of the present invention have been described, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as claimed.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Sustainable Development (AREA)
- Cleaning In Electrography (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
Description
- This invention relates to an image formation apparatus having a unit to develop electrostatic latent images formed on an image carrier and a mechanism to recover waste toner.
- In image formation equipment such as electronic photocopying equipment, an electrostatic latent image is formed on a photosensitive agent which is the image carrier and this latent image is developed by a developer. The toner used for this developing method has been generally black. Recently, however, mono-color developing using where red, blue and other toners are used by changing the developing unit for installation to the main body of the equipment has been increasing. However, a compact image forming unit which including a developing system has not been developed.
- The object of this invention is to decrease the size of the unit which includes the developing equipment irrespective of the life of the image carrier by configuring the image formation unit with a first unit containing an image carrier and a second unit consisting of a developer and a waste toner recovery container.
- Especially, this investigation is intended for the easy replacement of the developing unit and discarding of the waste toner by just replacing the second unit which includes the developer.
- Briefly described, in accordance with the present invention, an image formation apparatus having a first unit consisting of an image carrier and at least a cleaner being held to one supporter and a second unit consisting of a developer to develop an electrostatic latent image formed on the image carrier, the said first and second unit being installed removably to the image formation apparatus, is provided.
- The present will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustation only, and thus are not limitative of the present invention and wherein:
Fig. 1 is a schematic side sectional view of the electronic photocopying system according to this invention, Fig. 2 is a general perspective view of the second unit, Fig. 3 is a general perspective view of the first unit, Fig. 4 is a perspective view of the copying machine with no second unit installed, and Fig. 5 is a perspective view of the copying machine with the second unit installed. - Fig. 1 is a schematic sectional view of an electronic photocopier according to this invention.
- At the approximate centre of the copying machine 1, a drum-shaped
photosensitive device 2 formed to generate a copied image is provided. Thephotosensitive device 2 is held with a drive mechanism, not shown, for rotation. Around thephotosensitive device 2, acharger 3, light focuser/transmitter 4,developer 5, transferer 6, andcleaner 7 are arranged along the rotating direction to form the copying image. In this copying machine 1, at least thephotosensitive device 2,charger 3, andcleaner 7 are held in one case to configure thefirst unit 8. Thisfirst unit 8 is held with a guide supporter, not shown, on the equipment main body side and can be taken out or reinstalled by any one by using the mounting handle on the unit. - An original stand 9 which is used to set the original and expose it with the
exposure light source 10 is movably positioned on the copying machine 1. This original stand 9 is scanned in the lateral direction with a drive unit, not shown. The optical image obtained by the irradiation with theexposure light source 10 is projected on the optical conductive layer on the surface of the photosensitive device by the light focuser/transmitter 4. By this, an electrostatic latent image is formed on thephotosensitive device 2 according to the image of the original and this latent image is visualized by thedeveloper 5, which is the second unit. - Then, the image visualized by the said developer 5 (image of the toner) is transferred onto the transfer paper which is carried from the paper feeder at the proper time by the transfer 6. At this time, about 20% of the toner remains on the surface of the drum of the
photosensitive device 2. In order to remove this toner and use the drum for the next image forming process, acleaner 7 is provided. Thiscleaner 7 pushes an elastic cleaning blade 70 to the surface of thephotoelectric device 2 to scrape off the remaining toner on the rotatingphotosensitive device 2. The toner scraped off with the cleaning blade 70 is received by the waste toner receiver 7a positioned under the cleaning blade. At the position of this waste toner receiver 7a, a waste toner feeder 7b is provided for rotation. The waste toner feeder 7b carries the toner dropped to the waste toner receiver 7s in the direction of the rotating axis of the photosensitive device to the one side of the first unit. On the one side, a feeder 7c to carry the toner whose carrying direction as shown in Fig. 3 makes a right angle to the previous carrying direction is provided in connection with the above described waste toner carrier 7b. This carrier 7c faces the wastetoner recovery container 56 which is provided in a single unit with thedeveloper 5 described later.
Especially, the outlet port provided in the carrier 7c and the opening of the wastetoner recovery container 56 are positioned to face each other. - On the other hand, the transfer paper which was sent to the transfer position is separated from the surface of the drum of the
photosensitive device 2 with the separator 11 after the transfer of the image and sent to theoverheat fixer 13 along thefeeding guide 12. In thefixer 13, the image of the toner powder on the transfer paper is fixed by heat and pressure and the transfer paper after fixing is discharged to the paper discharger 14. - Fig. 2 is a general perspective view of the second unit consisting of the
developer 5 and wastetoner recovery container 56. When the second unit is mounted to the main body of the copying machine, thecover 51 over the developing opening is separated to expose the magnetic brush of the toner generated on the developing sleeve and to mount it to the mounting position of the main body of the copying machine holding the secondunit mounting handle 52.Number 54 indicates a positioning boss to be locked to thepositioning hole 8a provided on the side of thefirst unit 8 andnumber 53 is a locking claw to hold thedeveloper 5 when it is installed to the main body of the copying machine.
Number 55 indicates the color of the toner at the time of mono-color copying and can be seen from the indicating window 1b at the front cabinet 1a.Number 56 is a vessel for recovering waste toner which is carried from the first unit and held in one unit with the developingsystem 5. They are replaced at the same time.Number 57 is the cover for the waste toner receiving port which is opened in the direction of the arrow when the second unit is mounted. It prevents the waste toner from overflowing when the unit is taken out. It is designed so that, when the above-describedcover 57 is opened, this opening becomes coincident with the discharge port of the feeder 7c of the first unit. - Fig. 3 is a general perspective view of the
first unit 8 on the main body of the copying machine so as to be demounted from, or remounted to a main body of the copying machine. Thefirst unit 8, in at least one case as described above, has a drum of photosensitive agent and acleaner 7 to remove toner remaining on the surface of the photosensitive device. The waste toner removed from the surface of thephotosensitive device 2 by thecleaner 7 is carried to the one side of the first unit by the feeder 7b, and then discharged from the discharge port by the feeder 7c. This feeder 7c is provided withcover 7d which moves in the direction of the arrow to open or close the discharge port. When the wastetoner recovery container 56 provided in the second unit reaches a specified position, thecover 7d is opened opening the discharge port. The discharge port of the feeder 7c is provided so as to be coincident with the opening of the wastetoner recovery container 56 of the second unit. - Here, the second unit cannot be installed unless the
first unit 8 is installed to the main body of the copying machine. When thefirst unit 8 is installed to the main body of the equipment, a guide for the second unit is configured. For this purpose, thefirst unit 8 is provided with a guide 8b as shown in Fig. 3. This guide 8b provided on thefirst unit 8 not only guides the second unit, but also serves to position the developing magnetic brush precisely to the surface of the drum of the photoelectric together with thepositioning boss 54 provided in the second unit. Fig. 4 shows the condition that the said first unit is mounted. - Mounting procedure for the second unit is shown below. The
first unit 8 is mounted to the main body of the copying machine 1. The second unit is inserted to the main body of the copying machine with its bottom part advancing along the guide 1c formed by a part of the frame of the main body of the copying machine. Thus the second unit is led to the inner part by the guide 8b provided in thefirst unit 8 and connected to the image unit driver, not shown, in the inner part of the main body of the copying machine. At the same time, thepositioning boss 54 of the second unit is fitted to thepositioning hole 8a of thefirst unit 8 and locked. Since it is not restrained and may jump out, it is hitched to the catch 1d of the guide 1c of the frame of the main body of the copying machine with thelocking claw 53 provided on the unit. - Upon the completion of the second unit, the covers 7d and 57 provided respectively at the discharge port of the feeder 7c to carry the waste toner on the
first unit 8 and the opening of the wastetoner recovery container 56 are opened so that the discharge port and receiving port align with each other and the recovery of waste toner torecovery container 56 becomes possible. Fig. 5 shows the condition where the second unit is installed. - By the above configuration, the second unit is positioned to the
first unit 8, and, while the main body of the copying machine is working, the toner remaining on thephotosensitive device 2 is carried through each feeder and recovered to therecovery container 56 held in the second unit. When the life of the second unit including thedeveloper 5 has expired, for instance, when the toner of thedeveloper 5 has been exhausted, only the second unit needs to be replaced. Therefore it is not necessary to increase the volume of the second unit including thedeveloper 5 as a consequence of the life of thephotosensitive device 2 in thefirst unit 8.
Therefore, the second unit needs not correspond to the first unit and can be small. - The
recovery container 56 has no relation with thefirst unit 8 either and therefore its size can be freely determined. It is advisable to determine the size of the wastetoner recovery container 56 based on the capacity of thedeveloper 5 to contain the toner. For instance, the capacity may be determined so that the toner of thedeveloper 5 of the second unit is exhausted before the life of thephotosensitive device 2 has expired and the waste recovery container becomes almost filled with waste toner when the second unit is replaced. In other words, the size of therecovery container 56 may be determined so that therecovery container 56 is almost filled with waste toner when the first unit is replaced. Therefore, the service life does not have to be considered when the second and first unit are replaced. Especially, the first unit can be designed freely and can be small. - As described above, in the system according to this invention, when the toner has been exhausted and the unit with a developer is replaced, the vessel to recover the waste toner which was recovered while the said unit was working is also replaced and therefore replacement is made in a short time and done easily. The image former is divided into two unit which have extremely different lives and as a result, each unit can be used effectively until its life has expired and can be small.
While only certain embodiments of the present invention have been described, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as claimed. - There are described above novel features which the skilled man will appreciate give rise to advantages. These are each independent aspects of the invention to be covered by the present application, irrespective of whether or not they are included within the scope of the following claims.
Claims (12)
Image formation means for forming image corresponding to an original; first unit means for visualizing the image using toner;
second unit means for recovering waste toner after used with said first unit means;
said first unit means being removable from the body of the image formation apparatus independetly from both the volume of waste toner stored in said second unit means and the life time of an image visualizing member of said first unit means;
so that said first unit means become compact irrespective of the property of said second unit means.
developing means for developing a latent image formed on an image carrier using a toner material;
cleaning means for removing excess toner from said image carrier; and
container means for receiving residual toner removed by said cleaning means;
characterised in that said developing means and said container means are included in a common unit which is removably mounted within the body of the apparatus.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61132091A JPS62287279A (en) | 1986-06-06 | 1986-06-06 | Image forming device |
JP132091/86 | 1986-06-06 | ||
IN98MA1991 IN172505B (en) | 1986-06-06 | 1991-02-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0248682A2 true EP0248682A2 (en) | 1987-12-09 |
EP0248682A3 EP0248682A3 (en) | 1988-11-17 |
EP0248682B1 EP0248682B1 (en) | 1991-05-29 |
Family
ID=26324747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87305019A Expired - Lifetime EP0248682B1 (en) | 1986-06-06 | 1987-06-05 | Image formation apparatus |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0248682B1 (en) |
JP (1) | JPS62287279A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0251823A2 (en) * | 1986-07-04 | 1988-01-07 | Sharp Kabushiki Kaisha | Waste toner collecting system |
EP0368346A2 (en) * | 1988-11-10 | 1990-05-16 | Mita Industrial Co., Ltd. | Image-forming machine |
GB2239721A (en) * | 1989-12-05 | 1991-07-10 | Ricoh Kk | Improvements in, or relating to, image recording apparatus |
DE4038519A1 (en) * | 1989-12-04 | 1991-08-22 | Ricoh Kk | IMAGE GENERATION DEVICE |
EP1331527A1 (en) * | 2002-01-23 | 2003-07-30 | Kyocera Corporation | Toner supply container of an image forming machine |
EP2113816A1 (en) * | 2008-04-30 | 2009-11-04 | Samsung Electronics Co., Ltd. | Image Forming Apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608812B1 (en) * | 1993-01-26 | 1998-12-09 | Sharp Kabushiki Kaisha | Image forming apparatus |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0101325A2 (en) * | 1982-08-17 | 1984-02-22 | Canon Kabushiki Kaisha | A process unit and an image forming apparatus using the same |
WO1985004733A1 (en) * | 1984-04-13 | 1985-10-24 | Eastman Kodak Company | A cleaning method and apparatus for a polychromatic electrophotographic copier |
DE3522296A1 (en) * | 1984-06-22 | 1986-01-02 | Sharp K.K., Osaka | COPIER WITH AUTOMATIC DEVELOPER RETURN |
EP0176207A1 (en) * | 1984-08-31 | 1986-04-02 | Xerox Corporation | Electrostatographic copier |
US4591258A (en) * | 1981-12-22 | 1986-05-27 | Canon Kabushiki Kaisha | Safety means for process kit |
-
1986
- 1986-06-06 JP JP61132091A patent/JPS62287279A/en active Pending
-
1987
- 1987-06-05 EP EP87305019A patent/EP0248682B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591258A (en) * | 1981-12-22 | 1986-05-27 | Canon Kabushiki Kaisha | Safety means for process kit |
EP0101325A2 (en) * | 1982-08-17 | 1984-02-22 | Canon Kabushiki Kaisha | A process unit and an image forming apparatus using the same |
WO1985004733A1 (en) * | 1984-04-13 | 1985-10-24 | Eastman Kodak Company | A cleaning method and apparatus for a polychromatic electrophotographic copier |
DE3522296A1 (en) * | 1984-06-22 | 1986-01-02 | Sharp K.K., Osaka | COPIER WITH AUTOMATIC DEVELOPER RETURN |
EP0176207A1 (en) * | 1984-08-31 | 1986-04-02 | Xerox Corporation | Electrostatographic copier |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 101 (P-447)[2158], 17th April 1986; & JP-A-60 233 678 (CANON K.K.) 20-11-1985 * |
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 314 (P-412)[2037], 10th December 1985; & JP-A-60 143 360 (CASIO KEISANKI K.K.) 29-07-1985 * |
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 44 (P-337)[1767], 23rd February 1985; & JP-A-59 184 373 (FUJI XEROX K.K.) 19-10-1984 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0251823A2 (en) * | 1986-07-04 | 1988-01-07 | Sharp Kabushiki Kaisha | Waste toner collecting system |
EP0251823B1 (en) * | 1986-07-04 | 1993-02-24 | Sharp Kabushiki Kaisha | Waste toner collecting system |
EP0368346A2 (en) * | 1988-11-10 | 1990-05-16 | Mita Industrial Co., Ltd. | Image-forming machine |
EP0368346A3 (en) * | 1988-11-10 | 1991-09-11 | Mita Industrial Co., Ltd. | Image-forming machine |
US5255061A (en) * | 1989-12-04 | 1993-10-19 | Ricoh Company, Ltd. | Image forming apparatus with a first and second lid |
DE4038519A1 (en) * | 1989-12-04 | 1991-08-22 | Ricoh Kk | IMAGE GENERATION DEVICE |
US5126799A (en) * | 1989-12-05 | 1992-06-30 | Ricoh Company, Ltd. | Image recording apparatus having a toner supply tank and a toner recovery tank configured into a unitary, disposable magazine |
FR2657974A1 (en) * | 1989-12-05 | 1991-08-09 | Ricoh Kk | IMAGE RECORDING APPARATUS FOR COPIER, FAX AND PRINTERS. |
GB2239721A (en) * | 1989-12-05 | 1991-07-10 | Ricoh Kk | Improvements in, or relating to, image recording apparatus |
GB2239721B (en) * | 1989-12-05 | 1994-04-27 | Ricoh Kk | Improvements in or relating to image recording apparatus |
USRE35528E (en) * | 1989-12-05 | 1997-06-10 | Ricoh Company, Ltd. | Image recording apparatus having a toner supply tank and a toner recovery tank configured into a unitary, disposable magazine |
EP1331527A1 (en) * | 2002-01-23 | 2003-07-30 | Kyocera Corporation | Toner supply container of an image forming machine |
US6829462B2 (en) | 2002-01-23 | 2004-12-07 | Kyocera Corporation | Toner supply apparatus for image forming machine |
EP2113816A1 (en) * | 2008-04-30 | 2009-11-04 | Samsung Electronics Co., Ltd. | Image Forming Apparatus |
US8014698B2 (en) | 2008-04-30 | 2011-09-06 | Samsung Electronics Co., Ltd. | Image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS62287279A (en) | 1987-12-14 |
EP0248682B1 (en) | 1991-05-29 |
EP0248682A3 (en) | 1988-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0407183B1 (en) | Color image forming apparatus | |
US6308028B1 (en) | Process cartridge having a particular electrical contact arrangement and image forming apparatus using such a process cartridge | |
KR0134171B1 (en) | Process cartridge, method for assembling process cartridge | |
US6674982B2 (en) | Image forming apparatus including components mounted and/or dismounted in selected order | |
JP4882517B2 (en) | Process unit and image forming apparatus | |
JPS6314187A (en) | Developer recovering device | |
KR100547129B1 (en) | Electrophotographic printer | |
US20100247137A1 (en) | Detachable body and image forming apparatus | |
JPH08305247A (en) | Process cartridge and image forming device | |
GB2115351A (en) | Demountable modules | |
US5697008A (en) | Image forming apparatus having selectively removable image processing and toner modules | |
US4916490A (en) | Image forming apparatus comprising a plurality of developing devices | |
US11016440B2 (en) | Cartridge reproduction method and cartridge | |
US4821063A (en) | Image forming apparatus | |
EP0639801A1 (en) | Color image forming apparatus having a process cartridge and a color developer cartridge | |
EP0248682A2 (en) | Image formation apparatus | |
JPH06186844A (en) | Developer container and developer supply device | |
US20040042817A1 (en) | Process cartridge | |
JPH0815971A (en) | Image-forming device | |
JP2003195721A (en) | Process cartridge and image forming apparatus | |
JP2000131943A (en) | Developing unit, process cartridge and electrophotographic image forming device | |
US5309202A (en) | Image forming apparatus | |
JPH0211155B2 (en) | ||
JP2000258979A (en) | Electrophotographic device | |
JPH0627957B2 (en) | Developing device for image generator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19890418 |
|
17Q | First examination report despatched |
Effective date: 19890912 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REF | Corresponds to: |
Ref document number: 3770338 Country of ref document: DE Date of ref document: 19910704 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20060531 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20060601 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20060608 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20070604 |