JPH01209144A - Multicolor printer - Google Patents

Multicolor printer

Info

Publication number
JPH01209144A
JPH01209144A JP3423788A JP3423788A JPH01209144A JP H01209144 A JPH01209144 A JP H01209144A JP 3423788 A JP3423788 A JP 3423788A JP 3423788 A JP3423788 A JP 3423788A JP H01209144 A JPH01209144 A JP H01209144A
Authority
JP
Japan
Prior art keywords
printing
color
paper
pulses
magenta
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.)
Pending
Application number
JP3423788A
Other languages
Japanese (ja)
Inventor
Toshiharu Kitagawa
俊治 北川
Zenichi Tsuru
鶴　善一
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3423788A priority Critical patent/JPH01209144A/en
Publication of JPH01209144A publication Critical patent/JPH01209144A/en
Pending legal-status Critical Current

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
    • 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

Landscapes

  • Handling Of Sheets (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Electronic Switches (AREA)
  • Color, Gradation (AREA)

Abstract

PURPOSE:To improve color reproducibility and printing quality, by a method wherein the overlap printing of single colors is performed while paper is allowed to run reciprocally to perform multicolor printing and a printing start position on and after the second color is corrected with respect to the feed amount of the paper at the printing time of the first color. CONSTITUTION:The running of paper 11 is performed by a pulse motor 13 rotating a capstan roller 12 through gear connection. Therefore, the feed amount of the paper 11 is controlled on the basis of the number of the pulses given to a pulse motor driving part 14. For example, two 20-step digital switches 17, 18 are used and the printing start position of each of magenta (second color) and cyan (third color) can be changed by +70mum with respect to the printing of yellow (first color) when one step is set to 70mum. A signal is inputted to an operation part 15 through an input port 16 and, during the running of the paper 11 in a software manner, on the basis of the number of pulses at the feed time of the paper 11 and the number of pulses at the forward feed time of yellow, the number of pulses at the forward feed time of magenta and those at the forward feed time of cyan are increased or decreased to correct the printing start positions of magenta and cyan and good multicolor printing reduced in color shift is always performed.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は熱転写プリンタをはじめとした多色印刷装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to multicolor printing devices such as thermal transfer printers.

従来の技術 第２図は多色印刷装置の一例である熱転写プリンタの用
紙送り及び印字部分の概略図である。BACKGROUND OF THE INVENTION FIG. 2 is a schematic diagram of the paper feeding and printing portions of a thermal transfer printer, which is an example of a multicolor printing device.

まず用紙送り時において、同図ａに示す様に、キャプス
タンローラ１及びピンチローラ２の反時計方向の回転駆
動力により、用紙４はペーパーホ２　へ−／ ルダー５から入方向に一画面分送り出される。この時ヘ
ッド６はプラテンローラ３から離れた場所に位置してお
り、また、インクフィルム７は停止状態にあり、印字が
なされてない。尚同図ａにおいて、８はインクフィルム
供給ホルダー、９はインクフィルム巻取ホルダーである
。First, when feeding paper, as shown in FIG. . At this time, the head 6 is located away from the platen roller 3, and the ink film 7 is in a stopped state, so that no printing is performed. In Figure a, 8 is an ink film supply holder, and 9 is an ink film take-up holder.

次に、印字時においては、同図すに示す様に、プラテン
ローラ３及びキャプスタンローラ１が時計方向に回転し
、用紙４は一画面分Ｂ方向に巻き戻される。この時、ヘ
ッド６がプラテンローラ３に当接しており、インクフィ
ルム供給ホルダー８及びインクフィルム巻取ホルダー９
が反時計方向に回転しており、インクフィルム７は用紙
４と連動してＢ方向に巻き戻される。この様にしてヘッ
ド６より熱がインクフィルム７に印加され、用紙４に所
定の印字がなされる。Next, during printing, as shown in the figure, the platen roller 3 and capstan roller 1 rotate clockwise, and the paper 4 is rewound in the direction B by one screen. At this time, the head 6 is in contact with the platen roller 3, the ink film supply holder 8 and the ink film take-up holder 9
is rotating counterclockwise, and the ink film 7 is rewound in the B direction in conjunction with the paper 4. In this way, heat is applied from the head 6 to the ink film 7, and a predetermined print is made on the paper 4.

そして、インクフィルム７には、イエロー、マゼンタ、
シアンが順次−画面毎に配置されており、上記動作を３
回繰返して多色カラー印字がなされる。The ink film 7 contains yellow, magenta,
Cyan is placed sequentially on each screen, and the above operation is performed 3 times.
Multicolor printing is performed repeatedly.

３ベーン 発明が解決しようとする課題 しかしながら、上記第２図の構成では用紙の走行はキャ
プスタンローラ１とピンチローラ２で圧接される摩擦力
により送られるため、主に印字時にヘッド６とプラテン
ローラ３が当接される負荷及びその他用紙にかかる走行
負荷により、キャプスタンローラ１とピンチローラ２の
間で用紙が微小量スリップを起す。カラー印刷をする場
合、イエロー、マゼンタ、シアンを３色繰返して印字さ
れるため、イエローマゼンタ、マゼンタ−シアンと微小
量用紙走行方向に順次色ズレをおこし、色再現性と印字
品質を悪化させていた。Problems to be solved by the three-vane invention However, in the configuration shown in FIG. 3 and other running loads applied to the paper, the paper slips a small amount between the capstan roller 1 and the pinch roller 2. When printing in color, three colors (yellow, magenta, and cyan) are printed repeatedly, which causes a small amount of color misalignment (yellow-magenta, magenta-cyan) in the paper running direction, deteriorating color reproducibility and print quality. Ta.

またこの色ズレは個々の装置のピンチローラ２とキャプ
スタンローラ１の押圧力、プラテンローラ３とヘッド６
の押圧力や表面の摩擦係数のバラツキ等により変化する
値であり補正方法がむつかしかった。Also, this color shift is caused by the pressing force of the pinch roller 2 and capstan roller 1 of each device, the platen roller 3 and the head 6.
This value changes depending on factors such as the pressing force and variations in the surface friction coefficient, making it difficult to correct.

本発明はこの様な問題点を解決することの出来る多色印
刷装置を提供するものである。　　゛課題を解決するた
めの手段 本発明の多色印刷装置は、用紙送り用回転数制御のパル
スモータと、パルス制御によるパルスモータ駆動部と、
補正量設定用デジタルスイッチとを具備し、イエロー（
−色目）の用紙送り量に対して、マゼンタ（三色目）の
用紙送り量及びシアン（三色目）の用紙送υ量をデジタ
ルスイッチにより、モータ駆動回路部に与えるパルス数
を変調することにより変化させ、イエロー、マゼンタ。The present invention provides a multicolor printing device that can solve these problems.゛Means for Solving the Problems The multicolor printing apparatus of the present invention includes a pulse motor with rotation speed control for paper feeding, a pulse motor drive section using pulse control,
Equipped with a digital switch for setting the correction amount, yellow (
- change the paper feed amount of magenta (third color) and the paper feed amount of cyan (third color) by modulating the number of pulses applied to the motor drive circuit section with a digital switch, with respect to the paper feed amount of Yellow, magenta.

シアンの印字開始位置を補正する構成としたものである
。The configuration is such that the cyan printing start position is corrected.

作用 この様にして個々の印刷装置のバネ圧及び送りローラの
摩擦係数等のバラツキによって生じる色ズレｔ１印字結
果を見て補正することができ、色再現性をはじめ、印字
品質が良好になる。Function: In this way, the color misregistration t1 print result caused by variations in the spring pressure of each printing device, the friction coefficient of the feed roller, etc. can be viewed and corrected, and the print quality including color reproducibility is improved.

実施例 第１図は本発明の一実施例に係る熱転写カラープリンタ
の色ズレ補正回路の概略ブロック図である。Embodiment FIG. 1 is a schematic block diagram of a color misregistration correction circuit of a thermal transfer color printer according to an embodiment of the present invention.

まず用紙１１の走行は、キャプスタンローラ１２５　ペ
ージ をギア連結によって回転させるパルスモータ１３によっ
て行なっている。従って用紙送り量はパルスモータ駆動
部１４に与えるパルス数によって制御される。本実施例
では、２０段階のデジタルスイッチ１７　、１８’ｉ２
個使用し、イエロー（−色目）の印字に対して、マゼン
タ（三色目）及びシアン（三色目）の印字開始位置を１
段階７μｍで±７０μｍ可変できる様になっており、入
力ポート１６を通じて演算部１５に信号を入れることに
より、ソフト的に用紙走行中、用紙送り時のパルス数を
イエロー前送υ時パルス数を基準として、マゼンタ前送
り、シアン前送りのパルス数を増減することにより、そ
れぞれマゼンタ及びシアンの印字開始位置を補正してい
る。First, the paper 11 is moved by a pulse motor 13 that rotates a capstan roller 125 through a gear connection. Therefore, the paper feed amount is controlled by the number of pulses applied to the pulse motor drive section 14. In this embodiment, 20-stage digital switches 17, 18'i2
The printing start position of magenta (third color) and cyan (third color) is set to 1 for yellow (-color) printing.
It can be varied by ±70 μm in steps of 7 μm, and by inputting a signal to the calculation unit 15 through the input port 16, the number of pulses when paper is fed while the paper is running is controlled based on the number of pulses during yellow advance υ. By increasing or decreasing the number of pulses for , magenta advance, and cyan advance, the magenta and cyan print start positions are corrected, respectively.

発明の効果 以上のように本発明によれば、個々の印刷装置のバラツ
キによって生じる色ズレを、印字結果をみて個々に補正
することができるので、常に色ズレの少ない良好な多色
印字を行うことができ、高品質な多色印刷装置を提供で
きる。Effects of the Invention As described above, according to the present invention, color misregistration caused by variations in individual printing devices can be corrected individually by looking at the printing results, so good multicolor printing with little color misregistration is always performed. It is possible to provide a high-quality multicolor printing device.

６ヘー７′6 heh 7'

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例による熱転写カラープリンタ
の構成図、第２図は一般的な熱転写カラープリンタの概
略図でおる。 １１・・・・・・用紙、１２・・・・・・キャプスタン
ローラ、１３・・・・・・パルスモータ、１４・・・・
・・パルスモータ駆動部、１６・・・・・・演算部、１
７．１８・・・・・・デジタルスイッチ。FIG. 1 is a block diagram of a thermal transfer color printer according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a general thermal transfer color printer. 11... Paper, 12... Capstan roller, 13... Pulse motor, 14...
...Pulse motor drive section, 16...Calculation section, 1
7.18...Digital switch.

Claims (1)

【特許請求の範囲】[Claims] 回転数制御モータにより用紙を往復走行することで用紙
上に単色を重ね合せて印字することにより多色印字を行
うように構成し、かつ二色目以降の印刷開始印置を一色
目の印刷時の用紙送り量に対して補正する補正量設定用
スイッチを設けた多色印刷装置。It is configured to perform multi-color printing by printing single colors superimposed on the paper by moving the paper back and forth using a rotation speed control motor, and the printing start position for the second and subsequent colors is set at the same time as when printing the first color. A multicolor printing device equipped with a switch for setting a correction amount to correct the paper feed amount.
JP3423788A 1988-02-17 1988-02-17 Multicolor printer Pending JPH01209144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3423788A JPH01209144A (en) 1988-02-17 1988-02-17 Multicolor printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3423788A JPH01209144A (en) 1988-02-17 1988-02-17 Multicolor printer

Publications (1)

Publication Number Publication Date
JPH01209144A true JPH01209144A (en) 1989-08-22

Family

ID=12408548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3423788A Pending JPH01209144A (en) 1988-02-17 1988-02-17 Multicolor printer

Country Status (1)

Country Link
JP (1) JPH01209144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0584792A2 (en) * 1992-08-28 1994-03-02 Mitsubishi Denki Kabushiki Kaisha Sheet feeding apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0584792A2 (en) * 1992-08-28 1994-03-02 Mitsubishi Denki Kabushiki Kaisha Sheet feeding apparatus
EP0584792A3 (en) * 1992-08-28 1994-08-24 Mitsubishi Electric Corp Sheet feeding apparatus

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