WO1984000324A1 - Dispositif d'avance de feuille pour enregistreur - Google Patents

Dispositif d'avance de feuille pour enregistreur Download PDF

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Publication number
WO1984000324A1
WO1984000324A1 PCT/JP1983/000220 JP8300220W WO8400324A1 WO 1984000324 A1 WO1984000324 A1 WO 1984000324A1 JP 8300220 W JP8300220 W JP 8300220W WO 8400324 A1 WO8400324 A1 WO 8400324A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
recording
guide plate
platen
plate
Prior art date
Application number
PCT/JP1983/000220
Other languages
English (en)
Japanese (ja)
Inventor
Nobuyuki Uno
Shiro Hatakeyama
Original Assignee
Konishiroku Photo Ind
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP11959582A external-priority patent/JPS599075A/ja
Priority claimed from JP11959682A external-priority patent/JPS599076A/ja
Priority claimed from JP11959482A external-priority patent/JPS599074A/ja
Application filed by Konishiroku Photo Ind filed Critical Konishiroku Photo Ind
Publication of WO1984000324A1 publication Critical patent/WO1984000324A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02—Rollers
    • B41J13/036—Rollers co-operating with a roller platen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides

Definitions

  • the present invention relates to a friction feed type paper feeder in a recording device such as a printer for printing out a computer, a facsimile memory processor, or the like. It is about.
  • the recording paper used for the recording apparatus is continuous paper such as a roll of paper, or a sheet or a sheet cut into various predetermined dimensions.
  • continuous paper such as a roll of paper, or a sheet or a sheet cut into various predetermined dimensions.
  • the feed type of the paper feeder in the various recording devices described above can be roughly classified into the following: tractor feed, pin feed, friction feed, etc. .
  • the friction feed type paper feeder that uses the recording paper P such as the roll paper or the cut paper described above is a cylindrical puller around which the recording paper P is wound. A ten and a paper holding roller at two or more upper and lower positions for pressing the recording paper against the plate are used.
  • a paper feeder having such a structure In a paper feeder having such a structure,
  • the circumferential distance for paper feed by the upper roller is made larger than the circumferential drive distance for paper feed by the platen.
  • the paper feed by the upper roller] is advanced relatively more than the paper feed by the platen! )
  • the paper should be fed while eliminating the slack in the paper.
  • FIG. 1 An example of a conventional friction feed type paper feeder will be described with reference to a perspective view of FIG. 1 and a cross-sectional view of FIG.
  • a cylindrical plate 1 for feeding a recording sheet P is rotated by a driving source (not shown), for example, a pulse motor or a servo motor, and the platen 1
  • the shaft of the motor is rotatably supported by the frame.
  • a fixed guide plate 2 for inserting and guiding the recording paper P is fixed to a lower portion of the plate 1, and an outer peripheral surface of the plate 1 and the fixed guide plate 2 are fixed to the fixed guide plate 2.
  • a predetermined gap required for guiding the paper P is maintained with the inner surface.
  • a lower roller 5 supported by an arm 4 urged by a spring 3 is rotatably driven below the platen 1 and in an opening of the fixed guide plate 2. And is pressed against the outer peripheral surface of the platen 1. Further, a plurality of upper rollers 9 which are movable in the axial direction and are rotatably driven by a support shaft 8 suspended between an arm 7 urged by a spring 6 are also provided above and in front of the plate 1. The upper ⁇ -la 9 is pressed against the outer peripheral surface of the plate 1.
  • a paper guide plate 10 is provided above the plate 1 to guide the recording paper P on which recording has been performed.
  • two guide shafts 11 and 12 are installed in parallel in the lower front part of the plate 1.
  • a carriage 13 is controlled on these guide shafts 11 and 12 by a driving force of a servomotor or the like via a timing belt 14 or a wire. It is provided for the reciprocating movement.
  • a recording head for recording characters, figures, etc.15 For example, an ink jet recording head, a wire dot recording head, A thermal recording head or a typescript etc. is installed, and the recording front of the recording head 15 has a predetermined size with respect to the plate 1 described above. Are separated by. Next, a procedure for loading a recording sheet in the recording apparatus shown in the conventional example will be described.
  • the purpose of the present invention is to solve the above-mentioned problems in a low-cost, compact friction-feed type paper feeder, and to improve accuracy and reliability in high-speed paper feed. Thus, high quality recording is achieved.
  • the object of the present invention is to provide a cylindrical driving plate for feeding recording paper, and at least two papers for pressing and holding the recording paper on the circumferential surface of the blade.
  • the ⁇ -roller on the discharge side of the paper press roller is configured to be incapable of reverse rotation.
  • the blade rotates forward! ?
  • the recording paper is brought into close contact with the plate to remove slack, and to ensure a predetermined paper feeding accuracy. Can be achieved.
  • Another object of the present invention is to provide a compact friction feed type paper feeder which enables automatic loading of various types of recording paper, and which is low in cost and reliable. It is here.
  • An object of the present invention is to provide a cylindrical blade for feeding recording paper, and press-contact the recording paper on the circumference of the platen.
  • the upper and lower rollers that are driven and rotated while being held, and a fixed guide plate that guides the recording paper onto the circumference of the platen.
  • a movable guide plate that is rotatable and rotatable is provided outside the fixed guide plate to cooperate with the loading of the recording paper onto the platen. This can be achieved by operating the movable guide plate to rotate the movable guide plate.
  • FIGS. 1 and 2 are a perspective view and a sectional view showing a paper feeding state by a conventional paper feeding apparatus
  • FIGS. 3 and 4 are drawings showing a paper feeding apparatus of the present invention
  • FIG. 5 is a perspective view of a sheet feeding device in a recording apparatus according to another embodiment of the present invention
  • FIGS. 6 and 7 are sheet feeding states by the sheet feeding device.
  • FIG. 8 is a timing chart showing a process of an electric signal by the sheet feeding device of the present invention
  • FIG. 9 is a timing chart showing an electric circuit by the sheet feeding device of the present invention.
  • FIG. 10 is a flowchart showing the overall operation of the paper feeder of the present invention.
  • the paper feeding device is applicable to feeding of continuous paper such as roll paper or recording paper P such as cut paper cut to a predetermined size.
  • the cylindrical outer peripheral surface of the brain 1 for feeding the recording paper P is formed of metal, plastic, synthetic rubber, or the like, and is subjected to a surface treatment as necessary. Wind the outer peripheral surface of the above-mentioned
  • a well-known one-way clutch is provided inside the arm 7 that holds both ends of the support shaft 8 of the upper roller 9, and the support shaft 8 is moved in one direction immediately in the paper feeding direction. Only forward rotation is possible, and reverse rotation is not possible.
  • the material is selected or the surface is processed so that the sliding friction between the upper roller 9 and the recording paper P is greater than the sliding friction between the blade 1 and the recording paper P.
  • the sliding frictional force between the lower roller 5 and the recording paper is set to be larger than the frictional force due to the upper roller, and the material and the material of the lower roller 5 satisfying the above condition.
  • the contact area, spring pressure, etc. are selected.
  • FIG. 3 and 4 are partial cross-sectional views showing a recording sheet feeding process by the sheet feeding device of the present invention.
  • FIG. 5 is a perspective view showing an embodiment of a recording apparatus equipped with a paper feeder according to the embodiment of the present invention.
  • Sheet feeding device that by the embodiment of this is, Ru applicable der to feed any of the recording paper P cutlet preparative paper P 2 which is cut into the continuous sheet Pi and predetermined dimensions such as Russia Lumpur paper.
  • the center axis 1A of the above-mentioned plate is rotatably supported by a frame (not shown), and one end of the center axis 1A has a knob for manual rotation, a switching clutch and The pulleys, gears, etc. of the electric rotary shaft are fixed on the shaft.
  • the pulley or gear is connected to a driving motor such as a pulse motor or a servomotor via a belt or gear.
  • a left-hand swinging plate 20 and a right-hand swinging plate 21 which are rotatably fitted to both shaft ends of the central shaft 1A are provided, and these swinging plates 20
  • the other end is integrally formed by a movable guide plate 22 having a part of a cylindrical surface.
  • the movable guide plate 22 is fixed to the outer peripheral surface of the plate 1 with a predetermined gap therebetween, and is provided on the outermost side of the fixed guide plate 2 for guiding recording paper through the gap. .
  • the movable GUIDE plate driving motors M 2 have been fixed to the full record over arm, the axis of rotation of ⁇ Mo over motor M 2 c O over arm gear 2 3 is only Mounting, said U O
  • the worm gear 23 rotates the worm wheel 24.
  • the end face of the wheel 24 is fixed at an eccentric position with a sta- tion 25 force.
  • the movable guide plate 22 integral with the right-hand moving plate 21 is moved in the vicinity of the outer periphery of the blade 1 by making a circular motion about the rotation axis 1 A of the shaft 1.
  • the right rocking plate 21 has a projection 21A for detecting the lower limit position and a projection 21B for detecting the upper limit position of the movable guide plate 22 and contacts the stud 25. It has an end face 21 C that is in contact.
  • St 'Sa is microstrip click b Sui Tezea for sending a detection signal to abut on the protruding portions 2 1 A, 2 1 B] ?
  • Si is a movable guide plate lower limit detection signal
  • an upper roller 9 that is spring-biased and pressed against the outer peripheral surface of the platen 1, and is rotatably driven by the platen 1.
  • the lower entrance 5 are arranged by a shaft, an arm, a spring, and the like.
  • a known one-way clutch 26 is provided inside the arm 7 holding both ends of the support shaft 8 of the upper roller 9, and the support shaft 8 is moved in one direction, that is, in the sheet feeding direction. Only forward rotation is possible, and reverse rotation is not possible.
  • the material is selected or the surface is processed so that the surface friction coefficient of the upper roller 9 is larger than the same coefficient of the surface of the platen 1.
  • the continuous paper GUIDE plate 2 7 wherein the other side of the rear i.e. the recording surface of Burate down 1 to be introduced into the vicinity of the lower row La 5 consecutive paper Pi 3 ⁇ 4 ⁇ , mosquitoes Tsu preparative paper P 2 ⁇ An inserter device 28 to be introduced near the lower roller is also fixed.
  • the inserter device 28 is arranged such that the left guide 29, the right guide 30 and the intermediate guide 31 can be independently slid by the guide bar 32. There.
  • the above guide bar 32 is fixed to the left and right inserter frames 33]).
  • the Lee down server data unit angle for ⁇ the recording paper P 2 2 8 is set in the near have angles thereto was vertical or, under Accordingly predetermined position or the weight of the sheet P 2 b over La 5 It is designed to drop and stop near the.
  • FIG. 5 the driving of the sheet feeding apparatus according to this embodiment will be specifically described with reference to FIGS. 5 to 10.
  • FIG. 6 and 7 are cross-sectional views showing a recording paper loading process by the paper feeder of this embodiment.
  • FIG. 8 is a timing chart showing the timing chart
  • FIG. Fig. 9 is a block diagram of the electric circuit
  • Fig. 10 is a flowchart.
  • the can and the recording sheet is Ru continuous paper P t Dare, the continuous paper GUIDE plate 2 surface 7 on, the Align the paper edge and the lower B over La 5 Te and flop la te down 1 contacts position Buy.
  • Recording paper is to come and Ru mosquito Tsu door paper P 2 der which has been cut into a predetermined dimension to ⁇ to a predetermined scan Li Tsu capital position of Lee capacitors over data equipment 2 8.
  • the recording head 15 is positioned so as to interfere with the rotation of the movable guide plate 22, the recording head 15 is operated by the operation of the movable guide plate 22. Evacuate to a predetermined position outside the range (called a home position).
  • the movable guide plate drive After confirming that the recording head 15 is at the predetermined position, the movable guide plate drive responds to the paper set signal So.
  • a paper feed start command is output from the control circuit in response to the paper set signal (So), and the paper feed drive circuit causes the paper feed motor to start rotating.
  • the plate 1 is rotated, the recording paper is fed by being clamped by the lower roller 5, and the leading edge of the paper is fixed to the microphone ⁇ fixed to the frame of the apparatus body.
  • the control circuit When in contact with the scan I pitch S 3, and issued a paper feed detection signal, it starts counting the time by Seikai ⁇ Pa ls e number of this by the control circuit. It is more effective to shorten the time when the counting is started in parallel while the guide plate 22 is in operation.
  • the above-described forward rotation pulse is input to a pulse monitor, is fed forward, is fed, is counted, and the pulse is stopped. Input the reverse rotation pulse again and rotate it in reverse to count 28 pulses. That is, the platen is slightly rotated in reverse after the paper is rotated by the pulse motor.
  • the recording paper is moved by the movable guide plate.] 3 Guided automatically between the upper roller 9 and the blade 1 When the recording paper is held by the upper roller 9, the recording paper does not adhere to the surface of the plate 1 and loosens, but when the paper is rotated in the reverse direction, the recording paper is loosened. Because of the reverse rotation prevention action of 9, j is held and stopped, and only the blade 1 rotates slightly in the reverse direction. Therefore, the lower roller 5 that presses against the platen 1 A part of the recording paper is pulled back to remove the slack, and the recording paper is brought into close contact with the surface of the platen 1.
  • the recording paper is fed by rotating the platen 1 in the reverse direction.]? The recording paper is wrapped around the platen 1 loosely. Next, the rotation of the sheet feeding motor is stopped to stop the automatic sheet feeding.
  • the driving motors M 2 drives, in the same way as described above ⁇ O over arm formic Layer 2 3, Ho
  • the movable guide plate 22 is returned to the original position via the coil 24, the stud 25, and the right-hand movable plate 21.
  • the fixed guide plate 2 is extended and the movable guide plate 22 is provided outside the double structure.
  • the fixed guide plate 2 is omitted and the movable guide plate 2 is omitted. It is also possible to start the rotation of the movable guide plate 22 almost simultaneously with the start of the feeding of the recording paper by using only the guide plate 22.
  • the leading edge of the recording paper is fed by the plate 1 and the upper roller is fed.
  • the paper feeding device enables automatic loading without causing slack in the recording paper, and achieves high reliability, low cost, compactness, and the like. Have achieved

Landscapes

  • Handling Of Sheets (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)

Abstract

Un dispositif d'avance de feuille pour un enregistreur possède une feuille d'enregistrement (P) passant autour d'un rouleau porte-papier (1) et retenue par un galet de retenue. Un galet (9) du côté de décharge du papier ne peut pas tourner à l'envers, et le relâchement de la feuille (P) peut être éliminé en tournant le rouleau porte-papier (1) en sens inverse pendant l'avance de la feuille. Une plaque de guidage mobile (22) tourne concentriquement avec le rouleau porte-papier (1) et en même temps que l'avance du papier (P), chargeant ainsi automatiquement la feuille.
PCT/JP1983/000220 1982-07-08 1983-07-07 Dispositif d'avance de feuille pour enregistreur WO1984000324A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11959582A JPS599075A (ja) 1982-07-08 1982-07-08 記録装置における給紙装置
JP11959682A JPS599076A (ja) 1982-07-08 1982-07-08 記録装置における給紙装置
JP11959482A JPS599074A (ja) 1982-07-08 1982-07-08 記録装置における給紙装置

Publications (1)

Publication Number Publication Date
WO1984000324A1 true WO1984000324A1 (fr) 1984-02-02

Family

ID=27313857

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1983/000220 WO1984000324A1 (fr) 1982-07-08 1983-07-07 Dispositif d'avance de feuille pour enregistreur

Country Status (2)

Country Link
DE (1) DE3390082T1 (fr)
WO (1) WO1984000324A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153859A2 (fr) * 1984-02-29 1985-09-04 Kabushiki Kaisha Toshiba Appareil de réalisation d'une image
EP0186465A2 (fr) * 1984-12-24 1986-07-02 Tokyo Electric Co., Ltd. Imprimante
EP0441448A1 (fr) * 1990-02-09 1991-08-14 Digital Equipment Corporation Dispositif d'enregistrement et/ou de lecture d'information

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709127A1 (de) * 1986-03-26 1987-10-01 Seiko Epson Corp Automatische papiereinziehvorrichtung fuer drucker
GB2207886B (en) * 1987-08-08 1991-11-06 Mitsubishi Electric Corp Thermal transcription printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107873A (en) * 1980-12-25 1982-07-05 Ricoh Co Ltd Printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57107873A (en) * 1980-12-25 1982-07-05 Ricoh Co Ltd Printer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153859A2 (fr) * 1984-02-29 1985-09-04 Kabushiki Kaisha Toshiba Appareil de réalisation d'une image
EP0153859A3 (en) * 1984-02-29 1988-02-24 Kabushiki Kaisha Toshiba Image building apparatus
EP0186465A2 (fr) * 1984-12-24 1986-07-02 Tokyo Electric Co., Ltd. Imprimante
EP0186465A3 (en) * 1984-12-24 1988-06-08 Tokyo Electric Co., Ltd. Paper controlling method for a printer
US4815878A (en) * 1984-12-24 1989-03-28 Tokyo Electric Co., Ltd. Printing apparatus and a paper controlling method for a printer wherein paper slack is cancelled
EP0441448A1 (fr) * 1990-02-09 1991-08-14 Digital Equipment Corporation Dispositif d'enregistrement et/ou de lecture d'information
US5161905A (en) * 1990-02-09 1992-11-10 Eriksson Bjoern S H Apparatus for recording and/or reading information

Also Published As

Publication number Publication date
DE3390082T1 (de) 1985-02-21

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