EP0189798A1 - Procédé pour contrôler l'alimentation du papier dans un dispositif à imprimer - Google Patents

Procédé pour contrôler l'alimentation du papier dans un dispositif à imprimer Download PDF

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Publication number
EP0189798A1
EP0189798A1 EP86100587A EP86100587A EP0189798A1 EP 0189798 A1 EP0189798 A1 EP 0189798A1 EP 86100587 A EP86100587 A EP 86100587A EP 86100587 A EP86100587 A EP 86100587A EP 0189798 A1 EP0189798 A1 EP 0189798A1
Authority
EP
European Patent Office
Prior art keywords
paper
line
feed
paper web
leading edge
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
Application number
EP86100587A
Other languages
German (de)
English (en)
Other versions
EP0189798B1 (fr
Inventor
Josef Dipl.-Ing. Dempf
Erich Moser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT86100587T priority Critical patent/ATE45121T1/de
Publication of EP0189798A1 publication Critical patent/EP0189798A1/fr
Application granted granted Critical
Publication of EP0189798B1 publication Critical patent/EP0189798B1/fr
Expired legal-status Critical Current

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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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/42—Scales and indicators, e.g. for determining side margins
    • B41J29/44—Scales and indicators, e.g. for determining side margins for determining top and bottom margins or indicating exhaust of paper
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
    • B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
    • 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
    • B41J13/26—Registering devices
    • B41J13/28—Front lays, stops, or gauges

Definitions

  • the invention relates to a method for controlling the paper feed in a printing device according to the preamble of patent claim 1.
  • the present invention is therefore based on the object of developing a method which can dispense with an exact alignment of the paper web when inserted into the paper feed device and nevertheless ensures that the paper document is adjusted line by line in the printing station.
  • FIG. 1 shows a paper supply space 1 for an endless paper stack 2, from which the paper web 3 is fed to a printing device attached to an intermediate floor 4.
  • This printing device essentially consists of a feed device, for example feed beads 5 for the paper web 3 provided with peripheral perforations, a platen roller 6, a print head 7 and an ink ribbon cassette 8 or an ink cartridge as well as associated drives and controls.
  • the insertion of the paper web 3 in the feed beads 5 can follow at any point. After the feed caterpillars, the paper web enters the feed channel of the platen roller 6 and exits on the opposite side, partially wrapping the platen roller 6.
  • the adjustment of the paper web on the print head 7 is now carried out in such a way that the paper web 3 inserted in the feed beads 5 is first moved in full line steps beyond the platen roller 6 to a sensing element 9, for example a light barrier is transported. As soon as the paper leading edge reaches this sensing element 9, the paper feed is stopped. Because of the relatively large full-line grid, the paper web will not usually remain exactly on the sensing element, but will go a little further with the last full-line step. For this reason, a return transport takes place in a single or, if necessary, in two half-line steps until the front edge of the paper is again in front of the sensing element 9 1/12 full-line increments until the leading edge of the paper is recognized again by the sensing element 9. Starting from this position, which is accurate to +1/12 full line, the paper web is finally transported backwards, depending on the fixed distance between the sensing element 9 and the print head 7 in so many steps until the print head 7 is aligned with the first print line of the document.
  • a microcomputer control suitable for carrying out the described method is shown in principle in FIG. 2. It consists, for example, of a first microcomputer MC1 for controlling the printing device and a second microcomputer MC2, which takes on further control tasks within a larger overall device, for example an account statement printer.
  • the various functional units are connected to one another, as usual, via a bus system BUS1, BUS2.
  • the first microcomputer MC1 consists of a microprocessor CPU1, a working memory RAM1, a read-only memory ROM1 and an output module OP1, which is connected via a circuit breaker LS to the drive motor M for the printing device, in particular for the feed beads and the platen roller.
  • the output module OP2 of the second microcomputer MC2 via the interface IF1.
  • the latter also contains a microprocessor CPU2, a working memory RAM2 and a read-only memory ROM2, in which, among other things, the microinstructions for the paper feed steps are stored in accordance with the described method.

Landscapes

  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)
EP86100587A 1985-01-28 1986-01-17 Procédé pour contrôler l'alimentation du papier dans un dispositif à imprimer Expired EP0189798B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100587T ATE45121T1 (de) 1985-01-28 1986-01-17 Verfahren zur steuerung des papiervorschubs in einer druckeinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3502761 1985-01-28
DE3502761 1985-01-28

Publications (2)

Publication Number Publication Date
EP0189798A1 true EP0189798A1 (fr) 1986-08-06
EP0189798B1 EP0189798B1 (fr) 1989-08-02

Family

ID=6260962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100587A Expired EP0189798B1 (fr) 1985-01-28 1986-01-17 Procédé pour contrôler l'alimentation du papier dans un dispositif à imprimer

Country Status (3)

Country Link
EP (1) EP0189798B1 (fr)
AT (1) ATE45121T1 (fr)
DE (1) DE3664745D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288089A2 (fr) * 1987-04-23 1988-10-26 Brother Kogyo Kabushiki Kaisha Dispositif de transport du papier dans un dispositif d'enregistrement
WO1990011895A1 (fr) * 1989-04-05 1990-10-18 Siemens Nixdorf Informationssysteme Aktiengesellschaft Chargeur de papier pour la station de duplication d'une imprimante electrophotographique
EP0418515A1 (fr) * 1989-09-21 1991-03-27 Hewlett-Packard Company Système automatique d'alimentation en feuilles avec alignement actif
EP0450740A1 (fr) * 1990-04-06 1991-10-09 MANNESMANN Aktiengesellschaft Méthode et dispositif pour positionner le commencement d'une voie continue dans le dispositif pousseur d'une imprimante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2717758A1 (de) * 1977-04-21 1978-10-26 Siemens Ag Vorrichtung zur papierfuehrung in druckgeraeten, insbesondere bei daten- und fernschreibmaschinen
DE3130812A1 (de) * 1980-08-15 1982-06-24 Qume Corp., 94545 Hayward, Calif. Steueranordnung fuer die schreibwalze eines druckers
US4362409A (en) * 1979-09-11 1982-12-07 Ricoh Co., Ltd. Automatic sheet feeding system of a printing apparatus
EP0151425A2 (fr) * 1984-01-25 1985-08-14 Sharp Kabushiki Kaisha Dispositif de commande pour l'avance du papier dans une imprimante

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2717758A1 (de) * 1977-04-21 1978-10-26 Siemens Ag Vorrichtung zur papierfuehrung in druckgeraeten, insbesondere bei daten- und fernschreibmaschinen
US4362409A (en) * 1979-09-11 1982-12-07 Ricoh Co., Ltd. Automatic sheet feeding system of a printing apparatus
DE3130812A1 (de) * 1980-08-15 1982-06-24 Qume Corp., 94545 Hayward, Calif. Steueranordnung fuer die schreibwalze eines druckers
EP0151425A2 (fr) * 1984-01-25 1985-08-14 Sharp Kabushiki Kaisha Dispositif de commande pour l'avance du papier dans une imprimante

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288089A2 (fr) * 1987-04-23 1988-10-26 Brother Kogyo Kabushiki Kaisha Dispositif de transport du papier dans un dispositif d'enregistrement
EP0288089A3 (en) * 1987-04-23 1990-07-04 Brother Kogyo Kabushiki Kaisha Recording paper transporting device in a recording apparatus
US5071274A (en) * 1987-04-23 1991-12-10 Brother Kogyo Kabushiki Kaisha Recording paper transporting device for aligning top print line margin and cutting line
WO1990011895A1 (fr) * 1989-04-05 1990-10-18 Siemens Nixdorf Informationssysteme Aktiengesellschaft Chargeur de papier pour la station de duplication d'une imprimante electrophotographique
US5350100A (en) * 1989-04-05 1994-09-27 Siemens Nixdorf Informationssysteme Ag Paper feed device for the transfer station of a printing device with latent character image generation
EP0418515A1 (fr) * 1989-09-21 1991-03-27 Hewlett-Packard Company Système automatique d'alimentation en feuilles avec alignement actif
EP0450740A1 (fr) * 1990-04-06 1991-10-09 MANNESMANN Aktiengesellschaft Méthode et dispositif pour positionner le commencement d'une voie continue dans le dispositif pousseur d'une imprimante
DE4011685A1 (de) * 1990-04-06 1991-10-17 Mannesmann Ag Verfahren und vorrichtung zum positionieren des anfangs einer endlosbahn im schubtraktorbetrieb in einem drucker
DE4011685C2 (fr) * 1990-04-06 1992-05-07 Mannesmann Ag, 4000 Duesseldorf, De

Also Published As

Publication number Publication date
DE3664745D1 (en) 1989-09-07
ATE45121T1 (de) 1989-08-15
EP0189798B1 (fr) 1989-08-02

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