DE4034327A1 - Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages - Google Patents

Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages

Info

Publication number
DE4034327A1
DE4034327A1 DE19904034327 DE4034327A DE4034327A1 DE 4034327 A1 DE4034327 A1 DE 4034327A1 DE 19904034327 DE19904034327 DE 19904034327 DE 4034327 A DE4034327 A DE 4034327A DE 4034327 A1 DE4034327 A1 DE 4034327A1
Authority
DE
Germany
Prior art keywords
paper
printer
print
data
print head
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.)
Withdrawn
Application number
DE19904034327
Other languages
German (de)
Inventor
Herbert Boehm
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19904034327 priority Critical patent/DE4034327A1/en
Publication of DE4034327A1 publication Critical patent/DE4034327A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00Devices 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
    • B41J15/04Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00Devices 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
    • B41J11/004Platenless printing, i.e. conveying the printing material freely, without support on its back, through the printing zone opposite to the print head
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material

Abstract

Continuously fed computer print-out paper is incremented through a printer by sprocket wheels that engage holes along both edges of the paper to form a tractor feed system. The paper then passes over rollers and between print heads located on opposite sides of the paper. Each print head is mounted on a carriage that can be moved by a separate drive to print lines of information on both sides. Data are stored in page buffers that allow alternate pages to be printed at the same time. ADVANTAGE - Almost double speed with paper use reduced by half. Reduced storage space.

Description

A. MechanikA. Mechanics

Die auf dem Markt befindlichen Drucker, die Daten von einem Computer, Meßwerterfassungssystem, oder ähnlichen Einrichtungen auf elektrischem Wege digital verschlüsselt erhalten, drucken sie gewöhnlich auf Endlospapier aus. Sie haben einen Druckkopf und beschreiben immer nur die Vorderseite des Papiers.The printers on the market, the data from one Computer, data acquisition system, or similar devices digitally encrypted electronically received, they usually print out on continuous paper. they have a printhead and only ever describe them Front of the paper.

Der vorgeschlagene Drucker besitzt zwei Druckköpfe, die so angeordnet sind, daß mit ihnen gleichzeitig die Vorderseite und die Rückseite des Endlospapiers beschrieben werden kann. Beide Druckköpfe sind mit Schlitten und Antriebsmotor ausgerüstet und sie bewegen sich, unabhängig voneinander, in Zeilenrichtung.The proposed printer has two printheads are arranged that with them the front and the back of the fanfold paper can be written on. Both printheads are equipped with a carriage and a drive motor equipped and they move in independently Row direction.

In Fig. 1 ist die einfachste Anordnung gezeigt, die bei Druckern möglich ist, bei denen der Druckkopf berührungslos arbeitet und kein Farbband braucht, z. B. bei Tintenstrahldruckern. Für Nadeldrucker, die durch Anschlag ihrer Drucknadeln mit Hilfe eines Farbbandes das Papier bedrucken, ist die Anordnung in Fig. 2 schon etwas komplizierter. Es sind Anschlaglager notwendig und, falls die Druckköpfe in gleicher Höhe angebracht sein sollen, erfordert die Papierführung zum 2. Druckkopf, der die Rückseite des Endlospapiers beschreibt, Umlenkleisten.In Fig. 1 the simplest arrangement is shown, which is possible in printers in which the print head works without contact and does not need an ink ribbon, e.g. B. in inkjet printers. The arrangement in FIG. 2 is somewhat more complicated for dot matrix printers which print on the paper by means of an ink ribbon by striking their printing needles. Stop bearings are necessary and, if the printheads are to be attached at the same height, the paper guide to the second printhead, which describes the back of the continuous paper, requires deflection strips.

Die vorgeschlagene Ausführung des Druckers reduziert den Papierverbrauch auf die Hälfte und dadurch auch die Papierkosten. Ebenfalls verringert sich der Platzbedarf für die Ablage beträchtlich. Ein weiterer wichtiger Vorteil ist die Steigerung der Ausdruckgeschwindigkeit auf fast das Doppelte.The proposed design of the printer reduces the Paper consumption by half and therefore also that Paper costs. The space required for the filing considerable. Another important advantage is the increase in print speed to almost that Double.

Als Nachteil wäre zu erwähnen, daß bei Betrieb mit 2 Druckköpfen keine Durchschläge angefertigt werden können und daß Einzelblatteinzug kaum möglich ist.As a disadvantage it should be mentioned that when operating with 2nd No printouts can be made to printheads and that single sheet feeding is hardly possible.

Mit einem Schalter kann die Tätigkeit des zweiten Druckkopfes außer Betrieb gesetzt werden. Wenn dann noch das Papier so eingezogen wird, wie auf Fig. 2 gestrichelt angedeutet ist, kann der Drucker im vollen Umfang alle Funktionen eines Druckers mit nur einem Druckkopf ausführen. Dann sind Durchschläge und mit Zusatzeinrichtung auch Einzelblatteinzug, möglich. Bei Funktionsstörung des Druckkopfes kann der 2. Druckkopf als Austauschdruckkopf verwendet werden. Dadurch ergibt sich eine höhere Betriebssicherheit.With a switch the activity of the second printhead can be put out of operation. If the paper is then drawn in as indicated by the broken line in FIG. 2, the printer can perform all of the functions of a printer with only one print head. Then copies and, with additional equipment, single sheet feeding are possible. If the print head malfunctions, the 2nd print head can be used as a replacement print head. This results in higher operational reliability.

B. SteuerungB. Control

Die Daten der Datenverarbeitungsanlage werden zum Drucker auf die gleiche Weise geschickt, wie bei einem Drucker mit nur einem Druckkopf. Nur ein Grundsatz muß eingehalten werden: Der Zeilenabstand muß im ganzen Text gleichbleiben, da der Zeilenvorschub gemeinsam für die Vorderseite und Rückseite vorgenommen wird.The data from the data processing system are sent to the printer sent the same way as with a printer with only a printhead. Only one principle has to be followed: The line spacing must remain the same throughout the text, since the Line feed together for the front and back is made.

Die ankommenden Daten werden vom Betriebssystem des Druckers in 2 Pufferspeicher aufgeteilt, und zwar so, daß die Daten für die Seiten 1, 3, 5 usw. in den Speicher 1 und die Daten für die Seiten 2, 4, 6 usw. in den Speicher 2 kommen. Die Speicher sind vom Typ FIFO (First In, First Out). The incoming data is divided into 2 buffers by the operating system of the printer in such a way that the data for pages 1, 3, 5 etc. in memory 1 and the data for pages 2, 4, 6 etc. in memory 2 come. The memories are of the FIFO (First In, First Out) type.

Der Ausdruck kann erst beginnen, wenn die Datenverarbeitungsanlage die Daten für die ganze Seite 1 und einige Zeilen der Seite 2 in die Pufferspeicher des Druckers geliefert hat. Im Falle eines Druckers gemäß Fig. 1 beginnt dann der Ausdruck von Seite 1 und 2 gleichzeitig. Bei der Ausführung des Druckers nach Fig. 2 verzögert das Betriebssystem des Druckers den Beginn des Ausdruckes der Seite 2 (der Rückseite) solange, bis sie an der Druckposition des 2. Druckkopfes erscheint.The printout can only begin when the data processing system has delivered the data for the entire page 1 and a few lines of page 2 into the buffer memory of the printer. In the case of a printer according to FIG. 1, the printing of pages 1 and 2 then begins simultaneously. In the embodiment of the printer of Fig. 2, the operating system of the printer delays the onset of expression of page 2 (the back) until it appears at the printing position of the second print head.

Da die Schlitten beider Druckköpfe mit einem selbständigen Antriebsmotor ausgestattet sind, können beide Zeilen unabhängig voneinander, auch mit verschiedenen Geschwindigkeiten, geschrieben werden. Der Betrieb beider Druckköpfe ist bidirektional. Das Betriebssystem gibt den Impuls an den gemeinsamen Papiervorschubmotor zum Weiterschalten zur nächsten Zeile erst dann, wenn in beiden Zeilen das Zeilenende erreicht ist, oder der Steuerimpuls "Neue Zeile" ansteht.Since the carriage of both printheads with an independent Drive motor are equipped, both lines independently of each other, even at different speeds, to be written. The operation of both printheads is bidirectional. The operating system gives the impulse to the common paper feed motor to advance to next line only if in both lines the Line end is reached, or the control impulse "new line" pending.

Wenn am Ende eines Ausdruckes der Pufferspeicher für die Vorderseite, oder Rückseite schon leer ist, erfolgt der Papiervorschub nur noch nach dem Bedarf des noch vollen Speichers.If at the end of a printout the buffer memory for the Front, or back is already empty, the Paper feed only according to the needs of the full one Memory.

Claims (4)

1. Drucker zum Bedrucken von Computerendlospapier, dadurch gekennzeichnet, daß die Vorderseite des Papiers von einem Druckkopf und die Rückseite gleichzeitig von einem zweiten Druckkopf bedruckt wird.1. Printer for printing on continuous paper, characterized in that the front of the paper is printed by a print head and the back is simultaneously printed by a second print head. 2. Drucker nach Anspruch 1, dadurch gekennzeichnet, daß auch bei einer Ausführung als Nadeldrucker die beiden Druckköpfe in gleicher Höhe gegenüber angebracht sind und die Papierzuführung durch Umlenkleisten erfolgt.2. Printer according to claim 1, characterized, that even when running as a dot matrix printer the two Printheads are attached at the same height opposite and the paper is fed through deflection strips. 3. Drucker nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Tätigkeit des Druckkopfes 2 abgeschaltet werden kann und das Endloscomputerpapier dann so geführt werden kann, daß der Drucker genauso wie ein traditioneller Drucker mit einem Druckkopf arbeitet.3. Printer according to claim 1 and 2, characterized in that the activity of the print head 2 can be switched off and the continuous computer paper can then be performed so that the printer works just like a traditional printer with a print head. 4. Drucker nach Anspruch 1, dadurch gekennzeichnet, daß er mit einem Steuerungssystem ausgestattet ist, das folgende Funktionen erfüllt: Die aus externen Geräten ankommenden Daten werden in 2 Pufferspeicher aufgeteilt, und zwar so, daß die Daten für die Seiten 1, 3, 5 usw. in den Pufferspeicher 1 kommen und die Daten für die Seiten 2, 4, 6 usw. in dem Pufferspeicher 2. Mit den Daten der getrennten Pufferspeicher werden dann die beiden Druckköpfe, unabhängig voneinander, gesteuert. Erst wenn die Zeile der Vorderseite und die Zeile der Rückseite fertig ist, wird der Impuls zum Papiervorschub um eine Zeile gegeben.4. Printer according to claim 1, characterized in that it is equipped with a control system which fulfills the following functions: The data arriving from external devices are divided into 2 buffer memories, in such a way that the data for pages 1, 3, 5th etc. come into the buffer memory 1 and the data for pages 2, 4, 6 etc. in the buffer memory 2 . The data from the separate buffer memories are then used to control the two print heads independently of one another. Only when the line on the front side and the line on the back side have been completed is the impulse for feeding paper forward by one line.
DE19904034327 1990-10-29 1990-10-29 Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages Withdrawn DE4034327A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904034327 DE4034327A1 (en) 1990-10-29 1990-10-29 Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904034327 DE4034327A1 (en) 1990-10-29 1990-10-29 Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages

Publications (1)

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DE4034327A1 true DE4034327A1 (en) 1992-04-30

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DE19904034327 Withdrawn DE4034327A1 (en) 1990-10-29 1990-10-29 Printer for continuous fan fold computer print=out paper - provides double sided printing using print heads moved on respective carriages

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0677392A1 (en) * 1994-04-15 1995-10-18 Gemplus Card International Simultaneous two-sided printing machine
EP1106383A2 (en) * 1999-11-30 2001-06-13 Eastman Kodak Company Method and apparatus for making an album page
EP1236580A2 (en) * 2001-03-01 2002-09-04 GE Medical Systems Information Technologies, Inc. Improved printing method and apparatus
WO2006055604A2 (en) * 2004-11-16 2006-05-26 Polaroid Corporation Thermal painting device and method
WO2007116271A1 (en) * 2006-03-30 2007-10-18 Hellermanntyton S.R.L. Printing apparatus for single and double-sided printing on a continuous support products
EP1846243A2 (en) * 2005-01-27 2007-10-24 Fujifilm Dimatix, Inc. Duplex printing system capable of ink removal
US8434840B2 (en) 2004-03-04 2013-05-07 Fujifilm Dimatix, Inc. Morphology-corrected printing
CN105235426A (en) * 2015-10-18 2016-01-13 常州纳捷机电科技有限公司 Carton paging device of plotting instrument

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JP 1-295866 A., In: Patents Abstracts of Japan, M-935, Febr.15, 1990, Vol.14, No.81 *
US-Z: CHANDLER, R.G.: BIDIRECTIONAL DUAL-STATION PRINTER. In: IBM Technical Disclosure Bulletin, Vol.24, No.9, February 1982, S.4484-4485 *
US-Z: PRINTER FOR DUPLEX PRINTING. In: IBM Techni-cal Disclosure Bulletin, Vol.28, No.6, Nov.1985, S.2614 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0677392A1 (en) * 1994-04-15 1995-10-18 Gemplus Card International Simultaneous two-sided printing machine
FR2718678A1 (en) * 1994-04-15 1995-10-20 Gemplus Card Int Simultaneous biface printing machine.
US5558449A (en) * 1994-04-15 1996-09-24 Gemplus Card International Simultaneous two-face printing machine
US6666534B2 (en) 1999-11-30 2003-12-23 Eastman Kodak Company Method and apparatus for making an album page
US6435562B1 (en) 1999-11-30 2002-08-20 Eastman Kodak Company Method and apparatus for making an album page
EP1106383A2 (en) * 1999-11-30 2001-06-13 Eastman Kodak Company Method and apparatus for making an album page
EP1106383A3 (en) * 1999-11-30 2001-06-27 Eastman Kodak Company Method and apparatus for making an album page
EP1236580A2 (en) * 2001-03-01 2002-09-04 GE Medical Systems Information Technologies, Inc. Improved printing method and apparatus
EP1236580A3 (en) * 2001-03-01 2003-09-10 GE Medical Systems Information Technologies, Inc. Improved printing method and apparatus
US6982737B2 (en) 2001-03-01 2006-01-03 Ge Medical Systems Information Technologies, Inc. Printing method and apparatus
US8434840B2 (en) 2004-03-04 2013-05-07 Fujifilm Dimatix, Inc. Morphology-corrected printing
WO2006055604A2 (en) * 2004-11-16 2006-05-26 Polaroid Corporation Thermal painting device and method
US7411600B2 (en) 2004-11-16 2008-08-12 Polaroid Corporation Thermal printing device, method for printing an image using said printing device and system for printing an image
WO2006055604A3 (en) * 2004-11-16 2007-04-05 Polaroid Corp Thermal painting device and method
EP1846243A2 (en) * 2005-01-27 2007-10-24 Fujifilm Dimatix, Inc. Duplex printing system capable of ink removal
EP1846243A4 (en) * 2005-01-27 2010-03-31 Fujifilm Dimatix Inc Duplex printing system capable of ink removal
WO2007116271A1 (en) * 2006-03-30 2007-10-18 Hellermanntyton S.R.L. Printing apparatus for single and double-sided printing on a continuous support products
CN105235426A (en) * 2015-10-18 2016-01-13 常州纳捷机电科技有限公司 Carton paging device of plotting instrument

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