JPS62170373A - Improvement of printing quality variations according to printing direction in transfer-type printer - Google Patents

Improvement of printing quality variations according to printing direction in transfer-type printer

Info

Publication number
JPS62170373A
JPS62170373A JP1255786A JP1255786A JPS62170373A JP S62170373 A JPS62170373 A JP S62170373A JP 1255786 A JP1255786 A JP 1255786A JP 1255786 A JP1255786 A JP 1255786A JP S62170373 A JPS62170373 A JP S62170373A
Authority
JP
Japan
Prior art keywords
printing
ink ribbon
speed
reverse
transfer
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
JP1255786A
Other languages
Japanese (ja)
Inventor
Akira Okuyama
明 奥山
Shojiro Saito
斉藤　庄次郎
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP1255786A priority Critical patent/JPS62170373A/en
Publication of JPS62170373A publication Critical patent/JPS62170373A/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
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/54—Ribbon-feed devices or mechanisms for ensuring maximum life of the ribbon

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

PURPOSE:To eliminate the differences between printing quality in forward printing and that in backward printing, by a method wherein an ink ribbon capable of being subjected to three or more over-strikings is used, and an operating speed of a printing part in a forward direction and that in a backward direction are controlled based on a specified equation. CONSTITUTION:For example, an ink ribbon 2 capable of being subjected to four over-strikings is used, and the velocity VFCR 4 of a printing part 3 in forward printing and the velocity VRCR 5 of the printing part 3 in backward printing are set to fulfill the relation of equation (1), whereby the relative velocity V 7 of a transfer recording paper 1 and the ink ribbon 2 is controlled to be constant irrespective of the printing direction, as indicated by equations (2), (3), (4). Accordingly, the relative velocity of the paper and the ribbon can be made constant irrespective of the printing direction, and printing quality can be made constant irrespective of the printing direction. The ink ribbon may be any one that can be subjected to over-striking at least 3 times.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は両方向印字可能な転写式プリンタにおける印字
品質差の改善方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for improving print quality differences in a transfer printer capable of bidirectional printing.

〔従来の技術〕[Conventional technology]

従来、この種の両方向印字プリンタは第２図に示すよう
に正方向（ＦＷＤ）及び逆方向（１？Ｕｓ）の印字時に
おいてインクリボン９の速度Ｖえ、１１及び印字部１０
の速度ＶＣＲ１２とが一定であることより、下記の通り
となり、被転写紙８とインクリボンの相対速度が正逆方
向の印字時に差があった。Conventionally, as shown in FIG. 2, in this type of bidirectional printing printer, the speeds of the ink ribbon 9, V, 11, and the printing section 10 are controlled during printing in the forward direction (FWD) and in the reverse direction (1?Us).
Since the speed VCR 12 is constant, the following results, and there is a difference in the relative speed between the transfer paper 8 and the ink ribbon during printing in the forward and reverse directions.

被転写紙８とインクリボン９との相対速度差■は Ｖ＝Ｖｃ＊＋Ｖ＊； ＶＲｉ＝Ｖｅｉｌ　　とすると、 正方向印字時の■は Ｖ　＝ＶＣＭ　＋ＶＲｉ ”ＶＣＲ＋（−ν、ｉ）−〇 逆方向印字時の■は Ｖ　＝　ｖｅｎｔ　＋Ｖｌｌｉ ＝（ＶＣＲ）　＋　（Ｖ＋＋ｒ）　−一２ＶＣＲとなる
。The relative speed difference ■ between the transfer paper 8 and the ink ribbon 9 is V=Vc*+V*; VRi=Veil, then ■ during forward printing is V = VCM +VRi ”VCR+(-ν, i)-〇Reverse ■ during direction printing becomes V = vent + Vlli = (VCR) + (V++r) - -2 VCR.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の両方向印字プリンタの正逆印字方向を決
定する要因である被転写紙とインクリボンの相対速度は
インクリボン速度及び印字部速度が一定であることより
、正逆印字時の被転写紙とインクリボンの相対速度に差
があり、正逆方向の印字の品質が一定にならないという
欠点があった。The relative speed between the transfer paper and the ink ribbon, which is a factor that determines the forward/reverse printing direction of the conventional bidirectional printing printer mentioned above, is that the ink ribbon speed and printing unit speed are constant, so the transfer paper during forward/reverse printing is There is a difference in the relative speed of the ink ribbon and the ink ribbon, which has the disadvantage that the quality of printing in the forward and reverse directions is not constant.

本発明の目的は正逆方向の印字の品質を一定にする印字
品質差改善方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a printing quality difference improvement method that makes printing quality constant in forward and reverse directions.

〔問題を解決するための手段〕[Means to solve the problem]

本発明は正逆両方向印字可能な転写式プリンタにおいて
、３回以上のオーバストライクが可能なインクリボンを
使用し、正逆方向の印字部動作速度を、 弐：　ＶＲＣＩ＋　＝　　（１）　ＶＦＣｌｌ　　−（
１１ＶＦＣＲ Ｖｌｌｉ　＝□　　　　　　　　　　・・・（２）ただ
しＶＦＣＲｉ印字部の正方向印字時の速度、ｖＲｃＲ；
印字部の逆方向印字時の速度、ＶＪｌ、；リボンの走行
速度、Ｘニオ−バストライク数に基いて制御し、正逆方
向の印字品質差を改善することを特徴とする転写式プリ
ンタにおける印字方向の印字品質差改善方法である。The present invention uses an ink ribbon capable of overstrike three times or more in a transfer printer capable of printing in both forward and reverse directions, and the operating speed of the printing section in the forward and reverse directions is determined as follows: VRCI+ = (1) VFCll - (
11VFCR Vlli =□ ... (2) However, the speed of the VFCRi printing section during forward printing, vRcR;
Printing in a transfer printer characterized in that the print quality difference in the forward and reverse directions is improved by controlling the speed of the printing unit when printing in the reverse direction, VJl; the running speed of the ribbon, and the number of Xniover strikes. This is a method for improving printing quality differences in directions.

〔実施例〕〔Example〕

以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第１図において、オーバストライク数４回のインクリボ
ン２を使用し、正方向の印字速度ＶＦＣＩ！　４と逆方
向の印字部３の速度ＶＲＣ１５の関係を下記式（１１と
することにより、 Ｖｉｅｗ　＝　　（１）　ＶＦＣｌｌ ”　　　　　ＶＦＣｌｌ　　　　　　　　・・・（１）
被転写紙１とインクリボン２との相対速度ｖ７を正逆方
向に関係なく、下記（２）　、　（３）　、　（４）弐
の通り一定となるように制御する。In FIG. 1, an ink ribbon 2 with four overstrike cycles is used, and the printing speed in the positive direction is VFCI! 4 and the speed VRC15 of the printing unit 3 in the opposite direction is expressed by the following formula (11), View = (1) VFCll ” VFCll ... (1)
The relative speed v7 between the transfer paper 1 and the ink ribbon 2 is controlled to be constant as shown in (2), (3), and (4) below, regardless of the forward or reverse direction.

＝　　　　　　ＶＦＣＲ これにより、被転写紙とインクリボンの相対速度を正逆
印字方向に関係なく一定とすることが可能となり、正逆
方向印字の品質を一定とすることが可能になる。尚イン
クリボンはオーバストライク数が３回以上のものであれ
ばいずれのものでもよい。= VFCR This makes it possible to keep the relative speed between the transfer paper and the ink ribbon constant regardless of the forward and reverse printing directions, and it becomes possible to make the quality of forward and reverse printing constant. Note that any ink ribbon may be used as long as the number of overstrike is 3 or more.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は被転写紙とインクリボンの
相対速度を正逆印字方向に関係なく一定とすることがで
き、正逆方向印字の品質を一定とすることができる効果
を有するものである。As explained above, the present invention has the effect that the relative speed between the transfer paper and the ink ribbon can be made constant regardless of the forward and reverse printing directions, and the quality of printing in the forward and reverse directions can be made constant. be.

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

第１図は本発明の一実施例を示す図、第２図は従来例を
示す図である。 ■・・・被転写紙、２・・・インクリボン、３・・・印
字部、４・・・正方向印字部速度ＶＦＣＲ，５・・・逆
方向印字部速度ｖ、１ｃＲ１６・・・リボン走行速度Ｖ
ｌｌｉ、７・・・被転写紙とインクリボンの相対速度、
８・・・被転写紙、９・・・インクリボン、１０・・・
印字部、１１・・・インクリボン速度Ｖｌｌｉ、１２・
・・印字部速度ＶｃＲ遠方向（ＲＶＳ）　　　　　　　
正方向（ＦＷＤ）第１図 逆方向（ＲＶＳ）　　　　　正方向（ＦＷＤ）第２図FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing a conventional example. ■... Transfer paper, 2... Ink ribbon, 3... Printing section, 4... Forward direction printing section speed VFCR, 5... Reverse direction printing section speed v, 1cR16... Ribbon running speed V
lli, 7... Relative speed of transfer paper and ink ribbon,
8... Transfer paper, 9... Ink ribbon, 10...
Printing section, 11... Ink ribbon speed Vlli, 12.
・・Printing section speed VcR far direction (RVS)
Forward direction (FWD) Figure 1 Reverse direction (RVS) Forward direction (FWD) Figure 2

Claims (1)

【特許請求の範囲】[Claims] （１）正逆両方向から印字可能な転写式プリンタにおい
て、３回以上のオーバストライクが可能なインクリボン
を使用し、正逆方向の印字部動作速度を、 式：Ｖ＿Ｒ＿Ｃ＿Ｒ＝−（１−［２／ｘ］）Ｖ＿Ｆ＿Ｃ
＿Ｒ…（１） ＶＲｉ＝（Ｖ＿Ｆ＿Ｃ＿Ｒ／ｘ）…（２） ただしＶ＿Ｆ＿Ｃ＿Ｒ；印字部の正方向印字時の速度、 Ｖ＿Ｒ＿Ｃ＿Ｒ；印字部の逆方向印字時の速度、 Ｖ＿Ｒ＿ｉ；リボンの走行速度、 ｘ；リボンのオーバストライク数に基いて制御し、正逆
方向の印字品質差を改善することを特徴とする転写式プ
リンタにおける印字方向の印字品質差改善方法。(1) In a transfer printer that can print in both forward and reverse directions, use an ink ribbon that can overstrike three or more times, and calculate the printing unit operating speed in the forward and reverse directions using the formula: V_R_C_R=-(1-[2 /x])V_F_C
_R...(1) VRi=(V_F_C_R/x)...(2) where V_F_C_R: Speed of the printing section when printing in the forward direction, V_R_C_R: Speed of the printing section when printing in the reverse direction, V_R_i: Running speed of the ribbon, x; A method for improving print quality differences in printing directions in a transfer printer, the method comprising controlling based on the number of overstrike of a ribbon and improving print quality differences in forward and reverse directions.
JP1255786A 1986-01-23 1986-01-23 Improvement of printing quality variations according to printing direction in transfer-type printer Pending JPS62170373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1255786A JPS62170373A (en) 1986-01-23 1986-01-23 Improvement of printing quality variations according to printing direction in transfer-type printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1255786A JPS62170373A (en) 1986-01-23 1986-01-23 Improvement of printing quality variations according to printing direction in transfer-type printer

Publications (1)

Publication Number Publication Date
JPS62170373A true JPS62170373A (en) 1987-07-27

Family

ID=11808641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1255786A Pending JPS62170373A (en) 1986-01-23 1986-01-23 Improvement of printing quality variations according to printing direction in transfer-type printer

Country Status (1)

Country Link
JP (1) JPS62170373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157413A (en) * 1988-02-18 1992-10-20 Kabushiki Kaisha Toshiba Thermal inked ribbon printer mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157413A (en) * 1988-02-18 1992-10-20 Kabushiki Kaisha Toshiba Thermal inked ribbon printer mechanism

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