EP0072709A2 - Druckwerksteuerungsanlage - Google Patents

Druckwerksteuerungsanlage Download PDF

Info

Publication number
EP0072709A2
EP0072709A2 EP82304370A EP82304370A EP0072709A2 EP 0072709 A2 EP0072709 A2 EP 0072709A2 EP 82304370 A EP82304370 A EP 82304370A EP 82304370 A EP82304370 A EP 82304370A EP 0072709 A2 EP0072709 A2 EP 0072709A2
Authority
EP
European Patent Office
Prior art keywords
recording sheet
width
printed
input
printing
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
EP82304370A
Other languages
English (en)
French (fr)
Other versions
EP0072709A3 (en
EP0072709B1 (de
Inventor
Tomio Murayama
Hisao Nakajima
Yoshiki Kikuchi
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Publication of EP0072709A2 publication Critical patent/EP0072709A2/de
Publication of EP0072709A3 publication Critical patent/EP0072709A3/en
Application granted granted Critical
Publication of EP0072709B1 publication Critical patent/EP0072709B1/de
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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/485—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
    • B41J2/505—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements
    • 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

Definitions

  • This invention relates to a control system in a printer that prints characters or symbols on a recording sheet having a predetermined size in which the height of the characters or symbols may be changed.
  • this invention relates to a printer control system to prevent incorrect printing where characters or symbols jut out from the bottom edge of a recording sheet, or do not have a proper bottom margin.
  • a non-impact printer such as a heat-sensitive printer produces an output in hard copy form of characters or symbols (hereinafter referred to merely as "characters") corresponding to electrical input signals.
  • the printer of this type effects a picture element type of printing operation. Accordingly, the printer exhibits excellent recording flexibility, that is, it can print characters of various sizes as desired.
  • the height of a character to b printed can be changed as desired by the following method.
  • the video signal of each scanning line is generated by a character generating device and is used for printing a plurality of scanning lines or video signals for one line.
  • the output from the character generating device is thinned out to control the height.
  • the height of characters in printing lines can be set to desired values as described above, the number of lines which can be included in one page of a recording sheet are also changed. Accordingly, if the number of lines in such a printer is maintained unchanged, sometimes an inadequate or no blank area is left on the recording sheet while a line is being scanned. Hence, it becomes impossible to discriminate the contents of printing of that line. Therefore, in practice sometimes an operator is forced to perform a format calculation before recording so that the printing contents are all included on the respective page. Furthermore, sometimes the number of lines for characters to be recorded on one page is limited using a large character as a reference. If, in this case, small (small in height) characters are printed, an unbalanced blank area may be formed on the marginal bottom portion of the recording sheet.
  • An object of this invention is to provide a printer control system which can correctly determine the number of lines for characters to be printed on each recording sheet according to the heights of characters to be printed.
  • a system in a printer for controlling the printing of characters on a recording sheet wherein the height of the characters may be varied including: means for determinging the effective remaining length of said recording sheet available for printing; means for determining the width of a line to be printed; means for comparing the effective remaining length with the width of said line to be printed and generating control output; and control means responsive to said control output for determining whether printing of said line to be printed should be effected on said recording sheet or a subsequent one whereby the number of lines to be printed on said recording sheet is regulated.
  • FIG. 1 shows a recording sheet bottom edge detecting section in a printer.
  • data are recorded thermally on a heat-sensitive recording sheet 2 by using a thermal head 1.
  • the heat-sensitive recording sheet 2 is subjected to auxiliary scanning so that it passes between the thermal head 1 and a pressing roller 3 which confronts the thermal head 1.
  • the thermal head 1 applies thermal pulses to the heat-sensitive recording sheet 2, so that characters are recorded by selective coloring of the recording sheet.
  • An LED (light emitting diode) 4 and a photo-sensor 5 are located at a distance B, about 30 mm upstream of the heat generating element array 1A of the thermal head 1. These elements are arranged in such a manner that they are positioned on both sides of the path of the recording sheet 2.
  • the recording sheet 2 is conveyed stepwise in the direction of the arrow 6 (or the auxiliary scanning direction) by a step motor (not shown), and the photo-sensor 5 detects light from the LED 4 when the length of a blank portion of the recording sheet where no recording has yet been effectuated is 30 mm. It is understood that this predetermined distance can be set depending on system or equipment requirements.
  • FI G . 2 shows the essential components of a control section for carrying out the printing control operation of the printer.
  • the photo-sensor 5 Upon detection of light from the LED 4, the photo-sensor 5 applies a preset signal 9 to a subtraction counter 3.
  • the subtraction counter 8 presets to a predetermined value which is stored in a first buffer register 11.
  • a timing clock signal 12 is applied to the subtraction counter 8.
  • the timing clock signal is synchronous with the drive pulse which is applied to the step motor for moving, that is advancing the recording sheet.
  • the timing clock signal 12 is applied to the subtraction counter 8
  • the contents of the subtraction counter 8 are subtracted by the amount of conveyance C of the heat-sensitive recording 2 which is achieved by one drive pulse.
  • the subtraction result (or the effective recording length) D which is outputted by the subtraction counter 8 is: where, n is the integer representative of the number of timing clock signals 12 which are produced after the subtraction counter 8 has been preset.
  • the effective recording length D which is decreased with the advancement of the recording sheet is successively applied to an arithmetic circuit 13.
  • a second buffer register 14 applies recording sheet feeding data E to the arithmetic circuit 13.
  • the recording sheet feeding data E is the sum of the width F of a printing line 16 which is next to the printing line 15 on which data is being printed and the width G of an interline 17 between the printing lines 15 and 16.
  • a controller 19 forms character size data H according to a control code 21 which is transmitted together with a character code from a host system (not shown).
  • the second buffer 14 selects and outpus the recording sheet feeding data E. That is, the recording sheet feeding data E outputted by the second buffer 14 can be represented by the following expression:
  • the controller 19 Whenever one line has been printed, the controller 19 outputs a line printing finish signal 23. Upon reception of signal 23, the arithmetic circuit 13 subtracts the recording sheet feeding data E from the effective recording length D.
  • the output or the subtraction result signal 24 of the arithmetic circuit 13 is supplied to the controller 19.
  • the controller 19 determines the start of printing the next printing line 16 when the signal 24 is zero or positive; i.e., the effective recording data D is equal to or larger than the recording sheet feeding data E.
  • the controller 19 operates to end the printing operation of the line when printing the printing line 15 is completed.
  • the controller 19 supplies a new page starting instruction signal on line 25 to the host system, so that codes necessary for printing on the first line of the next page the data which were to be printed on the printing line 16 are suitably transmitted.
  • the effective recording length remaining on the recording sheet and the width of the line to be printed are determined from the height of a character to be printed.
  • the data is subjected to comparison in the printer or its peripheral unit, to determine whether or not it is possible to continue the printing operation on that page. This contributes to a reduction of the responsibility placed on the operator of the printer and results in an improvement of clerical work efficiency.
  • processing for the new line starting operation is effected by the program in the host systems.
  • the printer itself may perform the new line starting operation to continue the printing operation.
  • the arithmetic operation is started when the photo-sensor detects the rear edge of the recording sheet.
  • the arithmetic operation may be omitted in the following case. It is assumed that, as shown in FIG. 4, a character to be recorded is within a range of from the maximum height M to the minimum height N. When the sum (M + G) of the maximum height M of the character and the width G of the corresponding interline is subtracted continuously from the preset value A, if the result of subtraction becomes negative, the arithmetic operation may be omitted. Reduction of the arithmetic processing circuit as described above is effective in decreasing the burden which is given to internal or external arithmetic circuits of the printer or arithmetic devices.
  • the LED and the photo-sensor are used to detect the bottom edge of the recording sheet.
  • this method may be replaced by a method in which the presence or absence of reflected light is detected by a photo-coupler or the bottom edge is mechanically detected with a microswitch.
  • the sum of the width of a printing line which is next to the printing line which is being printed and the width of the interline between these two printing lines is compared with the effective recording length, to control the printer.
  • the printer may be controlled by utilizing the width of a printing line which occurs much later than the next printing line.
  • the comparison with the effective recording length is carried out immediately before the next printing line, it is unnecessary to examine the width of the interline.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Record Information Processing For Printing (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
EP19820304370 1981-08-19 1982-08-19 Druckwerksteuerungsanlage Expired EP0072709B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12876781A JPS5831785A (ja) 1981-08-19 1981-08-19 プリンタ制御方式
JP128767/81 1981-08-19

Publications (3)

Publication Number Publication Date
EP0072709A2 true EP0072709A2 (de) 1983-02-23
EP0072709A3 EP0072709A3 (en) 1984-02-22
EP0072709B1 EP0072709B1 (de) 1985-11-27

Family

ID=14992962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820304370 Expired EP0072709B1 (de) 1981-08-19 1982-08-19 Druckwerksteuerungsanlage

Country Status (2)

Country Link
EP (1) EP0072709B1 (de)
JP (1) JPS5831785A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428939A1 (de) * 1983-08-08 1985-02-28 Casio Computer Co., Ltd., Tokio/Tokyo Druckeinrichtung
EP0398145A2 (de) * 1989-05-16 1990-11-22 Seiko Epson Corporation Verfahren zum Steuern einer Papiervorschubeinrichtung in einem Drucker
DE4309750A1 (de) * 1993-03-26 1994-09-29 F & O Elektronic Systems Gmbh Verfahren und Vorrichtung zum Bedrucken von Etiketten, die einzeln oder auf einem Trägerband angeordnet sind
US5396589A (en) * 1990-03-09 1995-03-07 Matsushita Electric Industrial Co., Ltd. Character input apparatus for determining the total number of characters which may be written in a predetermined space
FR2732645A1 (fr) * 1995-04-04 1996-10-11 Gemplus Card Int Procede d'impression pour cartes plastiques de longueur indeterminee

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948176A (ja) * 1982-09-10 1984-03-19 Brother Ind Ltd プリンタの用紙送り装置
JPS6099680A (ja) * 1983-10-28 1985-06-03 Fujitsu Ltd プリンタの送り制御方式
JPS60107357A (ja) * 1983-11-16 1985-06-12 Hitachi Ltd ワ−ドプロセツサ
JPH02557A (ja) * 1989-02-13 1990-01-05 Toshiba Corp 文書印刷制御方式
JPH02556A (ja) * 1989-02-13 1990-01-05 Toshiba Corp 文書印刷制御方式
JPH01316279A (ja) * 1989-02-13 1989-12-21 Toshiba Corp 文書印刷制御方式

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910078A1 (de) * 1968-03-28 1969-10-02 Zbrojovka Brno Np Endausschalteinrichtung fuer den vertikalen Papiervorschub
FR2290309A1 (fr) * 1974-11-11 1976-06-04 Ibm Dispositif permettant d'imprimer des lignes de hauteur variable et de laisser des lignes en blanc dans un texte et imprimante munie d'un tel dispositif
DE2635285A1 (de) * 1976-08-05 1978-02-09 Heiko Dipl Phys Dr Barske Vorrichtung zum anzeigen des unterrandes eines zeile fuer zeile beschriebenen blattes
US4236835A (en) * 1978-12-18 1980-12-02 Printronix, Inc. Printer system with compressed print capability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910078A1 (de) * 1968-03-28 1969-10-02 Zbrojovka Brno Np Endausschalteinrichtung fuer den vertikalen Papiervorschub
FR2290309A1 (fr) * 1974-11-11 1976-06-04 Ibm Dispositif permettant d'imprimer des lignes de hauteur variable et de laisser des lignes en blanc dans un texte et imprimante munie d'un tel dispositif
DE2635285A1 (de) * 1976-08-05 1978-02-09 Heiko Dipl Phys Dr Barske Vorrichtung zum anzeigen des unterrandes eines zeile fuer zeile beschriebenen blattes
US4236835A (en) * 1978-12-18 1980-12-02 Printronix, Inc. Printer system with compressed print capability

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428939A1 (de) * 1983-08-08 1985-02-28 Casio Computer Co., Ltd., Tokio/Tokyo Druckeinrichtung
EP0398145A2 (de) * 1989-05-16 1990-11-22 Seiko Epson Corporation Verfahren zum Steuern einer Papiervorschubeinrichtung in einem Drucker
EP0398145A3 (de) * 1989-05-16 1991-07-31 Seiko Epson Corporation Verfahren zum Steuern einer Papiervorschubeinrichtung in einem Drucker
US5396589A (en) * 1990-03-09 1995-03-07 Matsushita Electric Industrial Co., Ltd. Character input apparatus for determining the total number of characters which may be written in a predetermined space
DE4309750A1 (de) * 1993-03-26 1994-09-29 F & O Elektronic Systems Gmbh Verfahren und Vorrichtung zum Bedrucken von Etiketten, die einzeln oder auf einem Trägerband angeordnet sind
FR2732645A1 (fr) * 1995-04-04 1996-10-11 Gemplus Card Int Procede d'impression pour cartes plastiques de longueur indeterminee

Also Published As

Publication number Publication date
EP0072709A3 (en) 1984-02-22
EP0072709B1 (de) 1985-11-27
JPS5831785A (ja) 1983-02-24

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