JP2004083281A

JP2004083281A - Method, device and program for controlling recording sheet carry capacity correction

Info

Publication number: JP2004083281A
Application number: JP2003129442A
Authority: JP
Inventors: Hidetoshi Masuda; 増田　英俊
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2002-06-25
Filing date: 2003-05-07
Publication date: 2004-03-18
Anticipated expiration: 2023-05-07
Also published as: JP4085271B2

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately correct carrying precision of a recording sheet carrying device and an inevitable minor carrying error caused by a slight sliding produced between the circumferential surface of the carrier roller and the surface of the recording sheet and to reduce the lowering of the recording quality. <P>SOLUTION: The carry capacity of the recording sheet P is compared with MINF (a fixed carry capacity) and, when the carry capacity is smaller than the MINF (Yes in a step S91), the recording sheets are carried by the appropriate carry capacity (a step S95). When the carry capacity is more than MINF (No in the step S91), a value obtained by adding a carry corrected capacity integrated value (r) to a carry corrected capacity per the carry capacity is divided by a unit carry capacity N to work out an integer quotient (a step S92). The carry corrected capacity, or a remainder of the division is set to a carry corrected capacity integrated value (r) (a step S93). The recording sheets P are thus carried at the carry capacity obtained by adding the corrected capacity, which is obtained by multiplying the unit carry capacity N by the integer quotient, to the carry capacity (a step S94). <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本願発明は、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送する記録紙搬送装置を備えた記録装置において、記録紙の搬送量の誤差を補正する記録紙搬送量補正制御方法、及び記録紙搬送量補正制御装置、並びに記録紙搬送量補正制御プログラムに関する。
【０００２】
【従来の技術】
インクジェット式記録装置等の記録装置は、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送させる記録紙搬送装置を備えたものが一般的であるが、その一例として、単票用紙と連続用紙とを選択的に紙送りして印刷を実行可能な構成を備えた記録装置が公知である。単票用紙に記録を実行する際には、上述した搬送ローラで単票用紙を搬送し、連続用紙に記録を実行する際には、搬送ローラに併設された連続用紙の側縁部に沿って設けられた送り孔に係合して回動するトラクタやスプロケット等で連続用紙を搬送するものが一般的である。このような記録装置は、連続用紙を搬送する際に搬送ローラとトラクタとの間で連続用紙がたるまないように、搬送ローラによる搬送がトラクタよりわずかに過送りに設定されている。それによって、単票用紙に記録を実行する際には、単票用紙を搬送する度に搬送誤差が蓄積されて搬送方向の記録実行位置がずれていってしまうという問題が生じる。そのため、あらかじめ設定されている搬送ローラの過送り量から単票紙の搬送量が一定の搬送量に達した時点で搬送量を補正して記録実行位置がずれないようにする技術が公知である（例えば、特許文献１参照）。
【０００３】
また、記録紙には、搬送ローラと記録紙とが高い摩擦抵抗を有する搬送ローラの周面の摩擦抵抗と記録紙表面の摩擦抵抗とによって密着し、搬送ローラの回転が確実に伝達されるようになっているが、それでも搬送ローラの周面と記録紙との間にわずかにすべりが生じてしまう。また、記録紙搬送装置の搬送精度も製造誤差の範囲内でばらつきが生じてしまい、それらの要因によって、微少な搬送誤差が生じてしまっていた。しかし、従来は、記録画質にほとんど影響しない程度のものであったため、問題となることはほとんど無かった。
【０００４】
【特許文献１】
特開平０３−２６２６６３号公報
【０００５】
【発明が解決しようとする課題】
しかしながら、近年の記録装置の高画質化に伴い、それによって生じる画質の低下が無視できないものとなってきた。そのため、高画質な記録が可能な近年の記録装置においては、この微少な搬送誤差を補正した搬送量で記録紙を搬送することが可能な記録紙搬送量補正制御が課題となっている。しかし、この微少な搬送誤差は、不可避な性質を有するものであると同時に、記録紙搬送装置の個々の搬送精度や記録紙の種別毎に異なる記録紙表面の摩擦抵抗等の要因によって、その誤差量が一義的に決まらず、また、その搬送誤差量が記録紙搬送装置の単位搬送量（搬送可能な最小の搬送量）よりはるかに小さい極めて微少な誤差量であることから、このような微少な搬送誤差を補正することは困難であり、それによる記録画質の低下をある程度、容認せざるを得ないのが現状であった。
【０００６】
本願発明は、このような状況に鑑み成されたものであり、その課題は、記録紙搬送装置の搬送精度、及び搬送ローラの周面と記録紙表面との間に生じるわずかなすべり等の要因によって生じる不可避な微少搬送誤差を的確に補正して、それによる記録画質の低下を少なくすることにある。
【０００７】
【課題を解決するための手段】
上記課題を達成するため、本願発明の第１の態様は、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、前記搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送する記録紙搬送装置を備えた記録装置において、記録紙の搬送量の誤差を補正する記録紙搬送量補正制御方法であって、前記記録紙搬送装置の単位搬送量をＮ、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量をＡＤＪＭ、記録紙の種別による単位搬送量当たりの搬送誤差量をＡＤＪＰ、単位搬送量当たりの搬送補正量ｓ＝ＡＤＪＭ＋ＡＤＪＰ、補正前の記録紙の搬送量をｘ・Ｎ、記録紙の搬送量当たりの搬送補正量ｘ・ｓを積算した搬送補正量積算値をｒ、搬送補正量積算値ｒを単位搬送量Ｎで除算した整数の商をＱとし、補正後の記録紙の搬送量＝（ｘ＋Ｑ）・Ｎ、補正後の搬送補正量積算値＝ｒ−Ｑ・Ｎとする、ことを特徴とした記録紙搬送量補正制御方法である。
【０００８】
前述したように、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送させる記録紙搬送装置においては、記録紙搬送装置の搬送精度も製造誤差の範囲内でばらつきと、搬送ローラの周面と記録紙との間に生じてしまうわずかなすべりとによって、微少な搬送誤差が生じてしまう。そこで、まず、記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭ、つまり、記録紙搬送装置の製造誤差によって個々に異なる記録紙搬送装置によって生じる単位搬送量当たりの搬送誤差量と、記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰ、つまり、記録紙の種別によって異なる記録紙表面と搬送ローラの周面との間に生じるすべりによる単位搬送量当たりの搬送誤差量とを加算して単位搬送量当たりの搬送補正量ｓを求める。ここで、単位搬送量Ｎとは、記録紙搬送装置の最小単位の搬送量である。したがって、この単位搬送量当たりの搬送補正量ｓとは、記録紙搬送装置の最小単位の搬送量に対する搬送補正量である。また、記録紙の種別とは、記録紙の材質、及び寸法、形状等を示すものである。
【０００９】
次に、記録紙の搬送量当たりの搬送補正量ｘ・ｓを求める。具体的には、記録紙搬送装置によって記録紙を搬送する際の補正前の搬送量ｘ・Ｎを単位搬送量Ｎで除算し、商として得られるｘを単位搬送量当たりの搬送補正量ｓに乗算する。そして、記録紙を搬送する度に、その搬送量当たりの搬送補正量ｘ・ｓを積算していき、整数の商Ｑを単位搬送量Ｎに乗算した搬送量（Ｑ・Ｎ）を記録紙の搬送量（ｘ・Ｎ）に加算して搬送する。また、同時に、搬送補正量積算値ｒから整数の商Ｑを単位搬送量Ｎに乗算した搬送量（Ｑ・Ｎ）を減算する。つまり、積算した単位搬送量当たりの搬送誤差量ｓを記録紙搬送装置の最小単位の搬送量である単位搬送量Ｎずつ、記録紙の搬送量に加算して搬送することによって記録紙の搬送量を単位搬送量Ｎずつ補正する。そして、加算した搬送量（Ｑ・Ｎ）を搬送補正量積算値ｒから減算することによって、補正後の搬送補正量積算値ｒは、常に単位搬送量Ｎ未満の値となる。
【００１０】
このように、記録紙が搬送する度に蓄積される記録紙搬送装置の搬送精度による搬送誤差、及び記録紙面と搬送ローラの周面との間に生じるすべりによる搬送誤差を積算し、つまり、単位搬送量当たりの搬送補正量ｓを積算し、積算した搬送補正量ｓを記録紙搬送装置で搬送できる最小の搬送単位ずつ、つまり単位搬送量Ｎずつ加算していくことによって、搬送誤差が蓄積されて記録紙の搬送誤差が徐々に大きくなっていくことを防止することができる。尚、加算する補正量は、記録紙の搬送方向に補正するならば、正の値の補正量を加算し、記録紙の搬送方向と反対方向に補整するならば、負の値の補正量を加算することになる。
【００１１】
これにより、本願発明の第１の態様に示した記録紙搬送量補正制御方法によれば、搬送誤差が蓄積されて記録紙の搬送誤差が徐々に大きくなっていくことを防止することができるので、記録紙搬送装置の搬送精度、及び搬送ローラの周面と記録紙表面との間に生じるわずかなすべり等の要因によって生じる不可避な微少搬送誤差を的確に補正することができ、それによって、記録紙の搬送誤差が蓄積されることによる記録画質の低下を少なくすることができるという作用効果が得られる。
【００１２】
本願発明の第２の態様は、前述した第１の態様において、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭ、及び記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを前記記録装置に接続された外部記憶手段から取得する、ことを特徴とした記録紙搬送量補正制御方法である。
【００１３】
本願発明の第２の態様に示した記録紙搬送量補正制御方法によれば、前述した第１の態様に記載の発明による作用効果に加えて、記録紙搬送装置の搬送精度による単位搬送量当たりの搬送誤差量ＡＤＪＭ、及び記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを外部記憶手段から取得するので、記録装置に不揮発性の記憶手段を搭載する必要がなく、搬送誤差量の情報を容易に変更、更新することができ、新規な記録紙への対応を容易に行うことができるという作用効果が得られる。
【００１４】
本願発明の第３の態様は、前述した第１の態様又は第２の態様において、記録紙の種別を該記録紙から検出し、検出した記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得する工程を有する、ことを特徴とした記録紙搬送量補正制御方法である。
【００１５】
本願発明の第３の態様に示した記録紙搬送量補正制御方法によれば、前述した第１の態様又は第２の態様に記載の発明による作用効果に加えて、記録紙の種別を記録紙から検出し、検出した記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得するので、記録実行時に記録紙の種別を設定する工程が不要になり、記録実行制御の工程を簡略化することができるという作用効果が得られる。
【００１６】
本願発明の第４の態様は、前述した第１の態様において、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭは、前記記録装置に搭載された不揮発性記憶媒体から取得し、記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰは、前記記録装置と情報伝送可能に接続されている情報処理装置から取得する、ことを特徴とした記録紙搬送量補正制御方法である。
【００１７】
記録紙搬送装置の搬送精度による単位搬送量当たりの搬送誤差量ＡＤＪＭは、記録紙搬送装置毎に異なる記録紙搬送装置固有のものであるので、記録装置に搭載されたフラッシュメモリ等の不揮発性記憶媒体にあらかじめ記憶しておくことによって、単位搬送量当たりの搬送補正量ｓを求める際にいつでも読み出すことができる。一方、記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰは、記録を実行する記録紙の種別によって異なるので、例えば、記録実行時に記録装置に接続されているパーソナルコンピュータ等の情報処理装置から取得することによって、記録を実行する記録紙の種別に応じた単位搬送量当たりの搬送誤差量ＡＤＪＰを取得することができる。
【００１８】
本願発明の第５の態様は、前述した第１の態様〜第４の態様のいずれかにおいて、記録紙の搬送量が一定の搬送量未満の場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しない、ことを特徴とした記録紙搬送量補正制御方法である。
【００１９】
記録紙の搬送量が一定の搬送量未満の小さな搬送量である場合には、その搬送量に対して補正を行うと搬送量が大きく変わってしまうことになる。つまり、記録紙の搬送量が一定の搬送量未満の場合にも、その搬送量当たりの搬送補正量ｘ・ｓを搬送補正量積算値ｒに積算してしまうと、その時点で搬送補正量積算値ｒが単位搬送量Ｎを超えた場合、その搬送量に単位搬送量Ｎが加算されて記録紙が搬送されることになる。一定の搬送量未満の小さな搬送量に単位搬送量Ｎを加算して搬送量を補正してしまうと、搬送量が大幅に変わってしまうことになり、かえって記録画質を大きく低下させてしまう虞がある。したがって、記録紙の搬送量が一定の搬送量未満の場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しないことで、一定の搬送量未満の小さな搬送量に単位搬送量Ｎが加算されて記録紙を搬送してしまうことを防止することができる。
【００２０】
これにより、本願発明の第５の態様に示した記録紙搬送量補正制御方法によれば、前述した第１の態様〜第４の態様に記載の発明による作用効果に加えて、一定の搬送量未満の小さな搬送量を補正して記録紙を搬送してしまうことを防止することができるので、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができるという作用効果が得られる。
【００２１】
本願発明の第６の態様は、前述した第１の態様〜第４の態様のいずれかにおいて、記録紙の搬送量が一定の搬送量未満の場合には、補正後の記録紙の搬送量＝ｘ・Ｎとし、補正後の搬送補正量積算値＝ｒとする、ことを特徴とした記録紙搬送量補正制御方法である。
【００２２】
前述したように、記録紙の搬送量が一定の搬送量未満の小さな搬送量の場合には、その搬送量を補正してしまうと搬送量が大きく変わってしまうことになり、かえって記録画質を大きく低下させてしまう虞がある。そこで、記録紙の搬送量が一定の搬送量未満の場合には、整数の商Ｑを単位搬送量Ｎに乗算した搬送量（Ｑ・Ｎ）を記録紙の搬送量に加算せずに搬送する。つまり、補正前の搬送補正量積算値ｒの値に関わらず、記録紙の搬送量が一定の搬送量未満の場合には、記録紙の搬送量を補正しないようにすることで、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができる。
【００２３】
これにより、本願発明の第６の態様に示した記録紙搬送量補正制御方法によれば、前述した第１の態様〜第４の態様のいずれかに記載の発明による作用効果に加えて、一定の搬送量未満の小さな搬送量を補正して記録紙を搬送してしまうことを防止することができるので、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができるという作用効果が得られる。
【００２４】
本願発明の第７の態様は、前述した第１の態様〜第４の態様のいずれかにおいて、記録紙の上端近傍及び下端近傍に、記録紙の搬送量が連続して一定の搬送量未満で記録を実行する場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しないで記録を実行し、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算し、補正後の記録紙の搬送量＝ｘ・Ｎとし、補正後の搬送補正量積算値＝ｒとする、ことを特徴とした記録紙搬送量補正制御方法である。
【００２５】
前述したように、一定の搬送量未満の小さな搬送量を補正してしまうと、搬送量が大幅に変わってしまうことになり、かえって記録画質を大きく低下させてしまう虞がある。したがって、記録紙の搬送量が一定の搬送量未満の場合には、記録紙の搬送量に単位搬送量Ｎを加算しないようにすることで、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができる。その際に当該搬送量当たりの搬送補正量ｘ・ｓを搬送補正量積算値ｒに加算するか否かによって、その後の搬送補正量積算値ｒの値が異なってくるので、それによって、その後の搬送誤差の補正が異なってくることになる。そこで、記録紙の搬送量が一定の搬送量未満の場合に、当該搬送量当たりの搬送補正量ｘ・ｓを搬送補正量積算値ｒに加算するか否かの１つの判断基準としては、一定の搬送量未満での記録紙の搬送が連続するか否かを目安とすることで、より的確な搬送量の補正を行うことができる。
【００２６】
つまり、記録紙の上端近傍及び下端近傍に、記録紙の搬送量が連続して一定の搬送量未満で記録を実行する場合に搬送補正量積算値ｒは、記録紙の搬送量が補正されないまま、その間における搬送量当たりの搬送補正量ｘ・ｓが積算されつづけてしまうので、記録紙の搬送量が連続して一定の搬送量未満で記録を実行した後、記録紙の搬送量が一定の搬送量以上の搬送量となったときに、大きな補正量が記録紙の搬送量に加算されて大きな搬送誤差が生じてしまう虞がある。したがって、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しないで記録を実行する。一方、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が補正されないまま搬送量当たりの搬送補正量ｘ・ｓが積算されつづけてしまう虞がないので、記録紙の搬送量が一定の搬送量未満の記録実行時に、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算して記録を実行する。
【００２７】
これにより、本願発明の第７の態様に示した記録紙搬送量補正制御方法によれば、前述した第１の態様〜第４の態様のいずれかに記載の発明による作用効果に加えて、記録紙の上端近傍及び下端近傍に、記録紙の搬送量が連続して一定の搬送量未満で記録を実行する場合には、記録紙の搬送量が連続して一定の搬送量未満で記録を実行した後、記録紙の搬送量が一定の搬送量以上の搬送量となったときに、大きな補正量が記録紙の搬送量に加算されて大きな搬送誤差が生じてしまうことを防止することができる。また、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が補正されないまま搬送量当たりの搬送補正量ｘ・ｓが積算されつづけてしまう虞がない。したがって、搬送量が一定の搬送量未満となる記録紙の搬送を含む記録実行時において、より的確で記録画質の低下の虞が少ない記録が可能になるという作用効果が得られる。
【００２８】
本願発明の第８の態様は、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、前記搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送する記録紙搬送装置を備えた記録装置において、記録紙の搬送量の誤差を補正する記録紙搬送量補正制御装置であって、前記記録紙搬送装置の単位搬送量をＮ、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量をＡＤＪＭ、記録紙の種別による単位搬送量当たりの搬送誤差量をＡＤＪＰとし、搬送補正量ｓ＝ＡＤＪＭ＋ＡＤＪＰとする搬送補正量演算手段と、記録紙の搬送量当たりの搬送補正量ｘ・ｓを積算して搬送補正量積算値ｒとする搬送補正量積算手段と、補正前の記録紙の搬送量をｘ・Ｎ、搬送補正量積算値ｒを単位搬送量Ｎで除算した整数の商をＱとし、補正後の記録紙の搬送量＝（ｘ＋Ｑ）・Ｎとする搬送量補正手段と、補正後の搬送補正量積算値＝ｒ−Ｑ・Ｎとする搬送補正量積算値減算手段とを備える、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第８の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第１の態様に記載の発明と同様の作用効果を得ることができる。
【００２９】
本願発明の第９の態様は、前述した第８の態様において、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭ、及び記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを前記記録装置に接続された外部記憶手段から取得する手段を備える、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第９の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第２の態様に記載の発明と同様の作用効果を得ることができる。
【００３０】
本願発明の第１０の態様は、前述した第８の態様又は第９の態様において、記録紙の種別を該記録紙から検出する手段と、検出した記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得する手段とを備える、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第１０の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第３の態様に記載の発明と同様の作用効果を得ることができる。
【００３１】
本願発明の第１１の態様は、前述した第８の態様において、前記記録装置に搭載された不揮発性記憶媒体から前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭを取得し、前記記録装置と情報伝送可能に接続されている情報処理装置から記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得する搬送誤差量取得手段を備える、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第１１の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第４の態様に記載の発明と同様の作用効果を得ることができる。
【００３２】
本願発明の第１２の態様は、前述した第８の態様〜第１１の態様のいずれかにおいて、前記搬送補正量積算手段は、記録紙の搬送量が一定の搬送量未満の場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しない、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第１２の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第５の態様に記載の発明と同様の作用効果を得ることができる。
【００３３】
本願発明の第１３の態様は、前述した第８の態様〜第１１の態様のいずれかにおいて、記録紙の搬送量が一定の搬送量未満の場合には、前記搬送量補正手段は、補正後の記録紙の搬送量＝ｘ・Ｎとし、前記搬送補正量積算値減算手段は、補正後の搬送補正量積算値＝ｒとする、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第１３の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第６の態様に記載の発明と同様の作用効果を得ることができる。
【００３４】
本願発明の第１４の態様は、前述した第８の態様〜第１１の態様のいずれかにおいて、前記搬送補正量積算手段は、記録紙の上端近傍及び下端近傍に、記録紙の搬送量が連続して一定の搬送量未満で記録を実行する場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算せず、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算し、前記搬送量補正手段は、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、補正後の記録紙の搬送量＝ｘ・Ｎとし、前記搬送補正量積算値減算手段は、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、補正後の搬送補正量積算値＝ｒとする、ことを特徴とした記録紙搬送量補正制御装置である。
本願発明の第１４の態様に示した記録紙搬送量補正制御装置によれば、記録紙搬送量補正制御装置において、前述した本願発明の第７の態様に記載の発明と同様の作用効果を得ることができる。
【００３５】
本願発明の第１５の態様は、前述した第８の態様〜第１４の態様のいずれかにに記載の記録紙搬送量補正制御装置を備えた記録装置である。
本願発明の第１５の態様に示した記録装置によれば、記録装置において、前述した前述した第８の態様〜第１４の態様のいずれかに記載の発明による作用効果を得ることができる。
【００３６】
本願発明の第１６の態様は、回転駆動力源の回転駆動力によって回転する搬送ローラの周面に記録紙を密着させ、前記搬送ローラの回転によって記録紙を所定の方向に所定の搬送量だけ搬送する記録紙搬送装置を備えた記録装置において、記録紙の搬送量の誤差を補正する制御をコンピュータに実行させるための記録紙搬送量補正制御プログラムであって、前記記録紙搬送装置の単位搬送量をＮ、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量をＡＤＪＭ、記録紙の種別による単位搬送量当たりの搬送誤差量をＡＤＪＰとし、搬送補正量ｓ＝ＡＤＪＭ＋ＡＤＪＰとする搬送補正量演算手順と、記録紙の搬送量当たりの搬送補正量ｘ・ｓを積算して搬送補正量積算値ｒとする搬送補正量積算手順と、補正前の記録紙の搬送量をｘ・Ｎ、搬送補正量積算値ｒを単位搬送量Ｎで除算した整数の商をＱとし、補正後の記録紙の搬送量＝（ｘ＋Ｑ）・Ｎとする搬送量補正手順と、補正後の搬送補正量積算値＝ｒ−Ｑ・Ｎとする搬送補正量積算値減算手順とを有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００３７】
本願発明の第１６の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第１の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第１の態様に記載の発明と同様の作用効果をもたらすことができる。
【００３８】
本願発明の第１７の態様は、前述した第１６の態様において、前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭ、及び記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを前記記録装置に接続された外部記憶手段から取得する手順を有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００３９】
本願発明の第１７の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第２の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第２の態様に記載の発明と同様の作用効果をもたらすことができる。
【００４０】
本願発明の第１８の態様は、前述した第１６の態様又は第１７の態様において、記録紙の種別を該記録紙から検出する手順と、検出した記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得する手順とを有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００４１】
本願発明の第１８の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第３の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第３の態様に記載の発明と同様の作用効果をもたらすことができる。
【００４２】
本願発明の第１９の態様は、前述した第１６の態様において、前記記録装置に搭載された不揮発性記憶媒体から前記記録紙搬送装置による単位搬送量当たりの搬送誤差量ＡＤＪＭを取得し、前記記録装置と情報伝送可能に接続されている情報処理装置から記録紙の種別による単位搬送量当たりの搬送誤差量ＡＤＪＰを取得する手順を有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００４３】
本願発明の第１９の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第４の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第４の態様に記載の発明と同様の作用効果をもたらすことができる。
【００４４】
本願発明の第２０の態様は、前述した第１６の態様〜第１９の態様のいずれかにおいて、前記搬送補正量積算手順は、記録紙の搬送量が一定の搬送量未満の場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しない手順を有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００４５】
本願発明の第２０の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第５の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第５の態様に記載の発明と同様の作用効果をもたらすことができる。
【００４６】
本願発明の第２１の態様は、前述した第１６の態様〜第１９の態様のいずれかにおいて、前記搬送量補正手順は、記録紙の搬送量が一定の搬送量未満の場合には、補正後の記録紙の搬送量＝ｘ・Ｎとする手順を有し、前記搬送補正量積算値減算手順は、記録紙の搬送量が一定の搬送量未満の場合には、補正後の搬送補正量積算値＝ｒとする手順を有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００４７】
本願発明の第２１の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第６の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第６の態様に記載の発明と同様の作用効果をもたらすことができる。
【００４８】
本願発明の第２２の態様は、前述した第１６の態様〜第１９の態様のいずれかにおいて、前記搬送補正量積算手順は、記録紙の上端近傍及び下端近傍に、記録紙の搬送量が連続して一定の搬送量未満で記録を実行する場合には、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算しない手順と、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量ｘ・ｓを積算する手順とを有し、前記搬送量補正手順は、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、補正後の記録紙の搬送量＝ｘ・Ｎとする手順を有し、前記搬送補正量積算値減算手順は、記録紙の搬送量が一定の搬送量未満の記録と、記録紙の搬送量が一定の搬送量以上の記録とを交互に実行する場合には、記録紙の搬送量が一定の搬送量未満の記録実行時に、補正後の搬送補正量積算値＝ｒとする手順を有する、ことを特徴とした記録紙搬送量補正制御プログラムである。
【００４９】
本願発明の第２２の態様に示した記録紙搬送量補正制御プログラムによれば、前述した本願発明の第７の態様に記載の発明と同様の作用効果を得ることができるとともに、この記録紙搬送量補正制御プログラムを実行することができる任意の記録装置に、前述した本願発明の第７の態様に記載の発明と同様の作用効果をもたらすことができる。
【００５０】
【発明の実施の形態】
以下、本願発明の第１実施例を図面に基づいて説明する。
まず、本願発明に係る「記録装置」としてのインクジェット式記録装置の構成について説明する。図１は、本願発明に係るインクジェット記録装置の概略のブロック図である。
【００５１】
インクジェット式記録装置５０は、各種記録処理の制御を実行する記録制御部２を備えている。記録制御部２において、中央演算処理装置ＭＰＵ２４では各種処理の演算処理が行われる。ＲＯＭ２１には、ＭＰＵ１１の演算処理に必要なソフトウェア・プログラム及びデータがあらかじめ記憶されている。ＲＡＭ２２は、ソフトウェア・プログラムの一時的な記憶領域、ＭＰＵ２４の作業領域等として使用される。また、フラッシュメモリ等の不揮発性記憶媒体２３には、ＭＰＵ２４における演算処理結果の所定のデータが格納され、インクジェット記録装置５０の電源断の間においても該データを保持する構成となっている。
【００５２】
さらに、記録制御部２は、外部装置とのインターフェース機能を有するインターフェース部２７を介して、パーソナルコンピュータ等の情報処理装置１と接続され、その情報処理装置１との間において、各種情報やデータの入出力が可能な構成となっている。そして、Ｉ／Ｏ２５は、ＭＰＵ２４における演算処理結果に基づいて、入出力部２６を介して各種モータ制御部３１や記録ヘッドドライバ３３に対して出力制御を行い、かつ各種センサー３２からの入力情報等を入力する。
【００５３】
各種モータ制御部３１は、インクジェット式記録装置５０の各種モータを駆動制御する駆動制御回路であり、記録制御部２によって制御される。記録ヘッドドライバ３３は、記録紙に記録処理を行う記録ヘッドに接続され、記録ヘッドに対して記録処理の制御を行うドライバである。また、各種センサー３２は、インクジェット記録装置５０の各種状態情報を検出し、入出力部２６を介してＩ／Ｏ２５に出力する。
【００５４】
図２は、本願発明に係るインクジェット式記録装置５０の概略の平面図であり、図３はその側面図である。
インクジェット式記録装置５０には、記録紙Ｐに記録を実行する記録手段として、キャリッジガイド軸５１に軸支され、主走査方向Ｘに移動するキャリッジ６１が設けられている。キャリッジ６１には、記録紙Ｐにインクを吐出して記録を行う記録ヘッド６２が搭載されている。記録ヘッド６２と対向して、記録ヘッド６２のヘッド面と記録紙Ｐとのギャップを規定するプラテン５２が設けられている。そして、キャリッジ６１を主走査方向Ｘに搬送し、キャリッジ６１とプラテン５２の間に記録紙Ｐを副走査方向Ｙに所定の搬送量で搬送する動作と、記録ヘッド６２を主走査方向Ｘに一往復させる間に記録ヘッド６２から記録紙Ｐにインクを吐出する動作とを交互に繰り返すことによって記録紙Ｐに記録が行われる。
【００５５】
給紙トレイ５７は、例えば普通紙やフォト紙等の記録紙Ｐを給紙可能な構成となっており、記録紙Ｐを自動給紙するためのＡＳＦ（オート・シート・フィーダー）が設けられている。ＡＳＦは、給紙トレイ５７に設けられた２つの給紙ローラ５７ｂ及び図示してない分離パッドを有する自動給紙機構である。
【００５６】
この２つの給紙ローラ５７ｂの１つは、給紙トレイ５７の一方側に配置され、もう１つの給紙ローラ５７ｂは、記録紙ガイド５７ａに取り付けられており、記録紙ガイド５７ａは、記録紙Ｐの幅に合わせて幅方向に摺動可能に給紙トレイ５７に設けられている。そして、給紙ローラ５７ｂの回転駆動力と、分離パッドの摩擦抵抗により、給紙トレイ５７に置かれた複数の記録紙Ｐを給紙する際に、複数の記録紙Ｐが一度に給紙されることなく１枚ずつ正確に自動給紙される。
【００５７】
記録紙Ｐを副走査方向Ｙに搬送する記録紙搬送手段として、搬送駆動ローラ５３と搬送従動ローラ５４が設けられている。搬送駆動ローラ５３は、ステッピング・モータ等の回転駆動力により回転制御され、搬送駆動ローラ５３の回転により、記録紙Ｐは副走査方向Ｙに搬送される。搬送従動ローラ５４は、複数設けられており、それぞれ個々に搬送駆動ローラ５３に付勢され、記録紙Ｐが搬送駆動ローラ５３の回転により搬送される際に、記録紙Ｐに接しながら記録紙Ｐの搬送に従動して回転する。搬送駆動ローラ５３の表面には、高摩擦抵抗を有する皮膜が施されている。搬送従動ローラ５４によって、搬送駆動ローラ５３の表面に押しつけられた記録紙Ｐは、その表面の摩擦抵抗によって搬送駆動ローラ５３の表面に密着し、搬送駆動ローラ５３の回転によって副走査方向に搬送される。
【００５８】
また、給紙ローラ５７ｂと搬送駆動ローラ５３との間には、従来技術において公知の技術による紙検出器６３が配設されている。紙検出器６３は、立位姿勢への自己復帰習性が付与され、かつ記録紙搬送方向にのみ回動し得るよう記録紙Ｐの搬送経路内に突出する状態で枢支されたレバーを有し、このレバーの先端が記録紙Ｐに押されることでレバーが回動し、それによって記録紙Ｐが検出される構成を成す検出器である。紙検出器６３は、給紙ローラ５７ｂより給紙された記録紙Ｐの始端位置、及び終端位置を検出し、その検出位置に合わせて記録領域が決定され、記録が実行される。
【００５９】
一方、記録された記録紙Ｐを排紙する手段として、排紙駆動ローラ５５と排紙従動ローラ５６が設けられている。排紙駆動ローラ５５は、ステッピング・モータ等の回転駆動力により回転制御され、排紙駆動ローラ５５の回転により、記録紙Ｐは副走査方向Ｙに排紙される。排紙従動ローラ５６は、周囲に複数の歯を有し、各歯の先端が記録紙Ｐの記録面に点接触するように鋭角的に尖っている歯付きローラになっている。複数の排紙従動ローラ５６は、それぞれ個々に排紙駆動ローラ５５に付勢され、記録紙Ｐが排紙駆動ローラ５５の回転により排紙される際に記録紙Ｐに接して記録紙Ｐの排紙に従動して回転する。
【００６０】
そして、給紙ローラ５７ｂや搬送駆動ローラ５３、及び排紙駆動ローラ５５を回転駆動する図示していない回転駆動用モータ、並びにキャリッジ６１を主走査方向に駆動する図示していないキャリッジ駆動用モータは、記録動作制御部２により駆動制御される。また、記録ヘッド６２も同様に、記録動作制御部２により制御されて記録紙Ｐの表面にインクを吐出する。
【００６１】
次に、本願発明に係るインクジェット式記録装置５０の記録制御部２による記録紙搬送量補正制御の手順について説明する。図４は、本願発明に係る記録紙搬送量補正制御の手順における初期値処理の手順を示したフローチャートである。
【００６２】
ここで、「記録紙搬送装置による搬送量α当たりの搬送誤差量」をＡＤＪＭとし、「記録紙の種別による搬送量α当たりの搬送誤差量」をＡＤＪＰとし、搬送量αを１インチとすると、ＡＤＪＭは、前述の搬送駆動ローラ５３及び搬送従動ローラ５４とによる記録紙搬送手段の１インチ当たりの搬送誤差量、ＡＤＪＰは、記録紙Ｐの種別による１インチ当たりの搬送誤差量ということになる。また、「一定の搬送量」をＭＩＮＦとする。ＭＩＮＦは、搬送量の補正をする最小の搬送量であり、搬送量を補正することによってむしろ搬送量に大きな誤差が生じることを防止するために記録紙の搬送量がＭＩＮＦに満たない搬送量の場合には、搬送量の補正を行わないためのものである。
【００６３】
まず、ＡＤＪＰを初期値として０に設定する（ステップＳ１）。インクジェット式記録装置５０の初期状態、つまり、インクジェット式記録装置に電源を投入した時点、あるいは、情報処理装置１からの初期化要求信号によってインクジェット式記録装置５０の記録制御部２がリセットされて初期状態となった場合等においては、記録を実行する記録紙Ｐの種別情報が無いので、初期値として０にしておく。また、搬送量の補正をする最小の搬送量も記録紙Ｐの種別等に依存して値が異なるので、同様に初期値として０に設定する（ステップＳ２）。そして、不揮発性記憶媒体２３に格納されている記録紙搬送手段の１インチ当たりの搬送誤差量としての補正値ＡをＡＤＪＭに設定する（ステップＳ３）。
【００６４】
図５は、本願発明に係る記録紙搬送量補正制御の手順における補正値の設定手順を示したフローチャートである。当該手順においては、記録実行時に記録紙Ｐの搬送量を補正するために必要な補正値を、初期状態で０に設定されているＡＤＪＰ及びＭＩＮＦにそれぞれ設定する。つまり、情報処理装置１から受信（搬送誤差量取得手順）した「記録紙Ｐの種別による１インチ当たりの搬送誤差量」としての補正値ＢをＡＤＪＰに設定し（ステップＳ１１）、同じく情報処理装置１から受信した一定の搬送量としての補正値ＣをＭＩＮＦに設定する（ステップＳ１２）。
【００６５】
図６は、本願発明に係る記録紙搬送制御の手順において、搬送補正搬送量を演算する「搬送補正搬送量演算手順」を示したフローチャートである。
ここで、単位搬送量Ｎ、つまり、記録紙搬送手段による最小単位の搬送量を１ステップと規定すると、上述した搬送量α、補正値Ａ、補正値Ｂ、及び補正値Ｃを単位搬送量Ｎで除算することによって、搬送量α、ＡＤＪＰ、ＡＤＪＭ、及びＭＩＮＦは、単位搬送量Ｎを単位としたステップ数に換算されることになる。そして、このステップ数に換算したＡＤＪＰとＡＤＪＭとを加算した値で、搬送量αをステップ数に換算した値（当該実施例においては５７６０ステップ）を除算して搬送補正搬送量Ｓに設定する（ステップＳ２１）。この搬送補正搬送量Ｓは、前述したように、記録紙Ｐの搬送誤差が単位搬送量Ｎに達する記録紙Ｐの搬送量を意味しており、つまりは、Ｓステップだけ記録紙Ｐが搬送された時点で、記録紙Ｐの搬送誤差量が１ステップとなり、１ステップの搬送量の補正が必要となることを意味している。
【００６６】
また、搬送量積算値Ｒを０にリセットする（ステップＳ２２）。この搬送量積算値Ｒについては、後述で説明する。尚、当該手順は、情報処理装置１から記録データを受信した際、あるいは、他の情報伝達経路から記録データを受信した際等に実行される手順である。したがって、当該記録データには、前述した補正値Ｂ（記録紙の種別による搬送量α当たりの搬送誤差量）、及び補正値Ｃ（記録紙の搬送量の補正を行う最小搬送量）を含んだデータである必要がある。ちなみに、当該記録データに補正値Ｂ及び補正値Ｃが含まれていない場合には、ＡＤＪＰ及びＭＩＮＦが初期設定状態の０のまま記録が実行され、記録紙搬送量の補正は一切行われない状態で当該記録データの記録が実行されることになる。
【００６７】
図７は、本願発明に係る記録紙搬送制御の手順において、搬送補正搬送量Ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
まず、記録紙Ｐの搬送量（ｘ・Ｎ）とＭＩＮＦとを比較し、搬送量がＭＩＮＦより小さいか否かを判定する（ステップＳ３１）。搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ３１でＹｅｓ）、当該搬送量（ｘ・Ｎ）だけ記録紙Ｐを搬送して当該手順を終了する（ステップＳ３５）。したがって、記録紙Ｐの搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には、当該搬送量（ｘ・Ｎ）が補正されることはない。一方、搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合には（ステップＳ３１でＮｏ）、つづいて、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算し、その整数の商Ｑを算出する（ステップＳ３２）。搬送量積算値Ｒは、記録紙Ｐの各搬送量を積算（搬送量積算手順）した値である。また、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算した余りの搬送量を補正後の搬送量積算値Ｒに設定する。つまり、搬送補正搬送量Ｓに整数の商Ｑを乗算した補正量を搬送量積算値Ｒから減算（搬送量積算値減算手順）する（ステップＳ３３）。Ｒ／Ｓ＝商Ｑ＋余りであることから、余り＝Ｒ−Ｓ・Ｑとなるので、Ｒ／Ｓの余りを補正後の搬送量積算値Ｒとすることによって、補正後の搬送量積算値＝Ｒ−Ｓ・Ｑとすることができる。そして、単位搬送量Ｎに整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算した搬送量で記録紙Ｐを搬送（搬送量補正手順）する（ステップＳ３４）。
【００６８】
このようにして、搬送量積算値Ｒを除算した整数の商Ｑを単位搬送量Ｎに乗算した補正量を加算して当該搬送量を補正していくことによって、記録紙Ｐに生じる搬送誤差を的確に補正することができる。また、記録紙Ｐの搬送量が一定の搬送量未満の場合には、搬送量積算値Ｒに当該搬送量を積算しないので、一定の搬送量未満の搬送量に単位搬送量Ｎを加算して記録紙を搬送してしまうことによって、搬送量が大きく変わってしまい、かえって搬送誤差が生じてしまうことを防止することができる。
【００６９】
また、本願発明の第２実施例としては、上述した第１実施例において、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量を搬送量積算値Ｒに加算しつつ、補正量を当該搬送量に加算せずに記録紙Ｐを搬送するものが挙げられる。つまり、第１実施例においては、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量の補正をせずに記録紙Ｐを搬送するだけであるのに対して、第２実施例においては、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量の補正をせずに記録紙Ｐを搬送するとともに、当該搬送量を搬送量積算値Ｒに積算するものである。
【００７０】
図８は、本願発明に係る記録紙搬送制御の第２実施例において、搬送補正搬送量Ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
ステップＳ４１〜Ｓ４４は、図７のステップＳ３１〜Ｓ３４と同様なので説明は省略する。記録紙Ｐの搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ４１でＹｅｓ）、当該搬送量（ｘ・Ｎ）を搬送量積算値Ｒに加算し（ステップＳ４５）、当該搬送量（ｘ・Ｎ）にて記録紙Ｐを搬送する（ステップＳ４６）。このように、記録紙Ｐの搬送量が一定の搬送量未満の場合には、当該搬送量に搬送量積算値Ｒを加算するが、当該搬送量に整数の商Ｑに単位搬送量Ｎ（１ステップ）を乗算した補正量を加算せずに、当該搬送量にて記録紙Ｐを搬送するので、搬送量積算値Ｒの値に関わらず、記録紙Ｐの搬送量が一定の搬送量未満の場合に、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができる。
【００７１】
さらに、本願発明の第３実施例としては、第１実施例において、記録紙Ｐの上端近傍及び下端近傍に、ＭＩＮＦより小さい搬送量で連続して記録を実行する場合には、搬送量積算値Ｒに当該搬送量を積算しないで記録を実行し、搬送量がＭＩＮＦより小さい記録と、搬送量がＭＩＮＦ以上の記録とを交互に実行する場合には、搬送量がＭＩＮＦより小さい記録実行時に、搬送量積算値Ｒに当該搬送時の搬送量を積算しつつ、補正量を当該搬送量に加算せずに搬送するとともに、搬送量積算値Ｒから搬送補正搬送量Ｓに整数の商Ｑを乗算した搬送量を減算しないものが挙げられる。図９は、本願発明に係る記録紙搬送制御の第３実施例において、搬送補正搬送量Ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
【００７２】
まず、記録紙Ｐの搬送量（ｘ・Ｎ）とＭＩＮＦとを比較し、搬送量（ｘ・Ｎ）がＭＩＮＦより小さいか否かを判定する（ステップＳ５１）。搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合には（ステップＳ５１でＮｏ）、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算し、その整数の商Ｑを算出する（ステップＳ５２）。また、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算した余りの搬送量を搬送量積算値Ｒに設定、つまり、当該搬送量に加算する搬送補正搬送量Ｓに整数の商Ｑを乗算した補正量を搬送量積算値Ｒから減算（搬送量積算値減算手順）しておく（ステップＳ５３）。そして、単位搬送量Ｎ（１ステップ）に整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算した搬送量で記録紙Ｐを搬送（搬送量補正手順）する（ステップＳ５４）。
【００７３】
一方、搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ５１でＹｅｓ）、搬送量がＭＩＮＦより小さい記録と、搬送量がＭＩＮＦ以上の記録とを交互に実行する、いわゆるバンド記録モードか否かを判定する（ステップＳ５５）。バンド記録モードでない場合には（ステップＳ５５でＮｏ）、当該搬送量（ｘ・Ｎ）を搬送量積算値Ｒに加算し（ステップＳ５６）、当該搬送量（ｘ・Ｎ）にて記録紙Ｐを搬送する（ステップＳ５７）。バンド記録モードの場合には（ステップＳ５５でＹｅｓ）、搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合（ステップＳ５１でＮｏ）と同様に、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算し、その整数の商Ｑを算出する（ステップＳ５８）。また、当該搬送量（ｘ・Ｎ）に搬送量積算値Ｒを加算した値を搬送補正搬送量Ｓで除算した余りの搬送量を搬送量積算値Ｒに設定する。つまり、当該搬送量に加算する搬送補正搬送量Ｓに整数の商Ｑを乗算した補正量を搬送量積算値Ｒから減算（搬送量積算値減算手順）する（ステップＳ５９）。そして、単位搬送量Ｎ（１ステップ）に整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算せずに、当該搬送量（ｘ・Ｎ）で記録紙Ｐを搬送する（ステップＳ５７）。したがって、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量（ｘ・Ｎ）が補正されることはない。さらに、バンド記録モードにおいては、搬送量積算値Ｒを搬送補正搬送量Ｓで除算して整数の商Ｑが得られても、その分の搬送補正搬送量Ｓを搬送量積算値Ｒから減算するのみで、整数の商Ｑに単位搬送量Ｎを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算せずに記録紙Ｐを搬送する。
【００７４】
つまり、記録紙Ｐの上端近傍及び下端近傍に、記録紙Ｐの搬送量が連続して一定の搬送量（ＭＩＮＦ）未満で記録を実行する場合（バンド記録モードでない場合）には、記録紙Ｐの搬送量が補正されないまま、その間における搬送量が積算されつづけてしまう。そのため、記録紙Ｐの搬送量が連続してＭＩＮＦ未満で記録を実行した後、記録紙Ｐの搬送量がＭＩＮＦ以上の搬送量となったときに、大きな補正量が記録紙Ｐの搬送量に加算されて大きな搬送誤差が生じてしまう虞があるので、搬送量積算値Ｒに当該搬送量を積算しないで記録を実行する。
【００７５】
一方、搬送量が一定の搬送量未満の記録と、搬送量が一定の搬送量以上の記録とを交互に実行する場合（バンド記録モードの場合）には、記録紙Ｐの搬送量が補正されないまま搬送量が積算されつづけてしまう虞がないので、記録紙Ｐの搬送量がＭＩＮＦ未満の記録実行時に、搬送量積算値Ｒに当該搬送量を積算して記録を実行する。このようにして、搬送量がＭＩＮＦ未満となる記録紙Ｐの搬送を含む記録実行時において、より的確で記録画質の低下の虞が少ない記録が可能になる。
【００７６】
さらに、本願発明の第４実施例としては、前述した第１〜第３実施例が搬送量を積算した搬送量積算値Ｒを単位搬送量Ｎに相当する搬送誤差が生じる搬送量としての搬送補正搬送量で除算して得た整数の商Ｑに単位搬送量Ｎを乗算して補正量を算出しているのに対して、搬送誤差そのものを積算した搬送誤差積算値を単位搬送量Ｎに相当する搬送誤差で除算して得た整数の商Ｑに単位搬送量Ｎを乗算して補正量を算出するものが挙げられる。以下、図１０〜図１４を参照しながら説明する。尚、第１〜第３実施例と重複した説明となる部分については一部省略して説明する。
【００７７】
図１０は、本願発明の第４実施例における記録紙搬送量補正制御の初期値処理の手順を示したフローチャートである。
当該実施例においては、「記録紙搬送装置による単位搬送量当たりの搬送誤差量」をＡＤＪＭとし、「記録紙の種別による単位搬送量当たりの搬送誤差量」をＡＤＪＰとする。ＭＩＮＦは、前述した第１〜第３実施例と同様に、搬送量の補正をする最小の搬送量であり、搬送量を補正することによってむしろ搬送量に大きな誤差が生じることを防止するために記録紙の搬送量がＭＩＮＦに満たない搬送量の場合には、搬送量の補正を行わないためのものである。まず、ＡＤＪＰを初期値として０に設定する（ステップＳ６１）。ＭＩＮＦも記録紙Ｐの種別等に依存して値が異なるので、同様に初期値として０に設定する（ステップＳ６２）。そして、不揮発性記憶媒体２３に格納されている記録紙搬送手段の単位搬送量当たりの搬送誤差量としての補正値ａをＡＤＪＭに設定する（ステップＳ６３）。
【００７８】
図１１は、本願発明の第４実施例における記録紙搬送量補正制御の補正値の設定手順を示したフローチャートである。当該手順においては、記録実行時に記録紙Ｐの搬送量を補正するために必要な補正値を、初期状態で０に設定されているＡＤＪＰ及びＭＩＮＦにそれぞれ設定する。つまり、情報処理装置１から受信（搬送誤差量取得手順）した「記録紙Ｐの種別による単位搬送量当たりの搬送誤差量」としての補正値ｂをＡＤＪＰに設定し（ステップＳ７１）、同じく情報処理装置１から受信した一定の搬送量としての補正値ｃをＭＩＮＦに設定する（ステップＳ７２）。
【００７９】
図１２は、本願発明の第４実施例における記録紙搬送制御の手順において、単位搬送量当たりの搬送補正量を演算する「搬送補正量演算手順」を示したフローチャートである。
ＡＤＪＰとＡＤＪＭとを加算した値を搬送補正量ｓに設定する（ステップＳ８１）。この搬送補正量ｓは、単位搬送量当たりの搬送誤差に相当する。また、搬送補正量積算値ｒを０にリセットする（ステップＳ８２）。この搬送補正量積算値ｒについては、後述で説明する。尚、当該手順は、情報処理装置１から記録データを受信した際、あるいは、他の情報伝達経路から記録データを受信した際等に実行される手順である。
【００８０】
図１３は、本願発明の第４実施例における記録紙搬送制御の手順において、搬送補正量ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
まず、記録紙Ｐの搬送量（ｘ・Ｎ）とＭＩＮＦとを比較し、搬送量（ｘ・Ｎ）がＭＩＮＦより小さいか否かを判定する（ステップＳ９１）。搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ９１でＹｅｓ）、当該搬送量（ｘ・Ｎ）だけ記録紙を搬送して当該手順を終了する（ステップＳ９５）。したがって、記録紙Ｐの搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には、当該搬送量が補正されることはない。一方、搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合には（ステップＳ９１でＮｏ）、つづいて、当該搬送量（ｘ・Ｎ）に搬送補正量ｓを乗算して得られる当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算し、その整数の商Ｑを算出する（ステップＳ９２）。搬送補正量積算値ｒは、当該記録紙Ｐの搬送量当たりの搬送補正量、すなわち各搬送量当たりの搬送誤差量を積算（搬送量補正積算手順）した値である。
【００８１】
また、当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算した余りの搬送補正量を補正後の搬送補正量積算値ｒに設定することによって、当該搬送量に加算する単位搬送量Ｎに整数の商Ｑを乗算した補正量を搬送補正量積算値ｒから減算（搬送補正量積算値減算手順）する（ステップＳ９３）。ｒ／Ｎ＝商Ｑ＋余りであることから、余り＝ｒ−Ｑ・Ｎとなるので、ｒ／Ｎの余りを補正後の搬送補正量積算値ｒとすることによって、補正後の搬送補正量積算値＝ｒ−Ｑ・Ｎとすることができる。そして、単位搬送量Ｎに整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算した搬送量で記録紙Ｐを搬送（搬送量補正手順）する（ステップＳ９４）。例えば、単位搬送量Ｎを１ステップとし、当該搬送量を１００ステップとする。搬送補正量ｓを０．０５５ステップとすると、当該搬送量当たりの搬送補正量は、１００×０．０５５＝５．５ステップということになる。この値を単位搬送量Ｎ（１ステップ）で除算すると、整数の商Ｑは５、余りは、０．５ステップということになる。したがって、当該搬送量１００ステップに補正量５ステップを加算した搬送量１０５ステップで記録紙Ｐを搬送し、搬送補正量積算値ｒは、０．５ステップとなる。
【００８２】
このようにして、搬送補正量積算値ｒを単位搬送量Ｎで除算した整数の商Ｑを単位搬送量Ｎに乗算した補正量を加算することによって、積算された搬送誤差量を単位搬送量Ｎずつ当該搬送量に加算して記録紙Ｐの搬送誤差を補正することができる。そして、その結果、第１実施例に示した記録紙搬送量補正制御手順と同様に記録紙Ｐの搬送誤差を補正することになり、それによって記録紙Ｐに生じる搬送誤差を的確に補正することができる。また、記録紙Ｐの搬送量が一定の搬送量未満の場合には、搬送補正量積算値ｒに当該搬送量当たりの搬送補正量を積算しないので、第１実施例に示した記録紙搬送量補正制御手順と同様に、一定の搬送量未満の搬送量に単位搬送量Ｎを加算して記録紙を搬送してしまうことによって、搬送量が大きく変わってしまい、かえって搬送誤差が生じてしまうことを防止することができる。
【００８３】
さらに、本願発明の第５実施例としては、上記第４実施例において、前述した第２実施例と同様に、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量当たりの搬送補正量を搬送補正量積算値ｒに加算しつつ、補正量を当該搬送量に加算せずに記録紙Ｐを搬送するものが挙げられる。図１４は、第５実施例における記録紙搬送制御の手順において、搬送補正量ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
【００８４】
記録紙Ｐの搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ１０１でＹｅｓ）、当該搬送量当たりの搬送補正量を搬送補正量積算値ｒに加算し（ステップＳ１０５）、当該搬送量（ｘ・Ｎ）にて記録紙Ｐを搬送する（ステップＳ１０６）。このように、記録紙Ｐの搬送量が一定の搬送量未満の場合には、当該搬送量当たりに搬送補正量を搬送補正量積算値ｒに加算するが、当該搬送量に整数の商Ｑに単位搬送量Ｎを乗算した補正量を加算せずに、当該搬送量にて記録紙Ｐを搬送するので、搬送補正量積算値ｒの値に関わらず、記録紙Ｐの搬送量が一定の搬送量未満の場合に、搬送量が大幅に変わって記録画質を大きく低下させてしまうことを防止することができる。
【００８５】
さらに、本願発明の第６実施例としては、上記第４実施例において、前述した第３実施例と同様に、記録紙Ｐの上端近傍及び下端近傍に、ＭＩＮＦより小さい搬送量で連続して記録を実行する場合には、搬送補正量積算値ｒに当該搬送量当たりの搬送補正量を積算しないで記録を実行し、搬送量がＭＩＮＦより小さい記録と、搬送量がＭＩＮＦ以上の記録とを交互に実行する場合には、搬送量がＭＩＮＦより小さい記録実行時に、搬送補正量積算値ｒに当該搬送時の搬送量当たりの搬送補正量を積算しつつ、補正量を当該搬送量に加算せずに搬送するとともに、搬送補正量積算値ｒから整数の商Ｑに単位搬送量Ｎを乗算した搬送量を減算しないものが挙げられる。図１５は、本願発明に係る記録紙搬送制御の第６実施例において、搬送補正量ｓに基づいて記録紙Ｐの搬送量を補正する手順を示したフローチャートである。
【００８６】
まず、記録紙Ｐの搬送量（ｘ・Ｎ）とＭＩＮＦとを比較し、搬送量（ｘ・Ｎ）がＭＩＮＦより小さいか否かを判定する（ステップＳ１１１）。搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合には（ステップＳ１１１でＮｏ）、当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算し、その整数の商Ｑを算出する（ステップＳ１１２）。また、当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算した余りを搬送補正量積算値ｒに設定、つまり、搬送補正量積算値ｒから単位搬送量Ｎに整数の商Ｑを乗算した補正量を減算（搬送補正量積算値減算手順）しておく（ステップＳ１１３）。そして、単位搬送量Ｎに整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算した搬送量で記録紙Ｐを搬送（搬送量補正手順）する（ステップＳ１１４）。
【００８７】
一方、搬送量（ｘ・Ｎ）がＭＩＮＦより小さい場合には（ステップＳ１１１でＹｅｓ）、搬送量がＭＩＮＦより小さい記録と、搬送量がＭＩＮＦ以上の記録とを交互に実行する、いわゆるバンド記録モードか否かを判定する（ステップＳ１１５）。バンド記録モードでない場合には（ステップＳ１１５でＮｏ）、当該搬送量当たりの搬送補正量を搬送補正量積算値ｒに加算し（ステップＳ１１６）、当該搬送量（ｘ・Ｎ）にて記録紙Ｐを搬送する（ステップＳ１１７）。バンド記録モードの場合には（ステップＳ１１５でＹｅｓ）、搬送量（ｘ・Ｎ）がＭＩＮＦ以上の場合（ステップＳ１１１でＮｏ）と同様に、当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算し、その整数の商Ｑを算出する（ステップＳ１１８）。また、当該搬送量当たりの搬送補正量に搬送補正量積算値ｒを加算した値を単位搬送量Ｎで除算した余りを搬送補正量積算値ｒに設定する。つまり、搬送補正量積算値ｒから単位搬送量Ｎに整数の商Ｑを乗算した補正量を減算（搬送補正量積算値減算手順）する（ステップＳ１１９）。そして、単位搬送量Ｎに整数の商Ｑを乗算した補正量を当該搬送量（ｘ・Ｎ）に加算せずに、当該搬送量（ｘ・Ｎ）で記録紙Ｐを搬送する（ステップＳ１１７）。したがって、記録紙Ｐの搬送量がＭＩＮＦより小さい場合には、当該搬送量が補正されることはない。さらに、バンド記録モードにおいては、搬送補正量積算値ｒを単位搬送量Ｎで除算して整数の商Ｑが得られても、その分の補正量を搬送補正量積算値ｒから減算するのみで、整数の商Ｑに単位搬送量Ｎを乗算した補正量を当該搬送量に加算せずに記録紙Ｐを搬送する。
【００８８】
つまり、記録紙Ｐの上端近傍及び下端近傍に、記録紙Ｐの搬送量が連続して一定の搬送量（ＭＩＮＦ）未満で記録を実行する場合（バンド記録モードでない場合）には、搬送補正量積算値ｒに当該搬送量当たりの搬送補正量を積算しないで記録を実行する。一方、搬送量が一定の搬送量未満の記録と、搬送量が一定の搬送量以上の記録とを交互に実行する場合（バンド記録モードの場合）には、記録紙Ｐの搬送量が補正されないまま搬送量が積算されつづけてしまう虞がないので、記録紙Ｐの搬送量がＭＩＮＦ未満の記録実行時に、搬送補正量積算値ｒに当該搬送量当たりの搬送補正量を積算して記録を実行する。このようにして、搬送量がＭＩＮＦ未満となる記録紙Ｐの搬送を含む記録実行時において、より的確で記録画質の低下の虞が少ない記録が可能になる。
【００８９】
尚、本願発明は上記実施例に限定されることなく、特許請求の範囲に記載した発明の範囲内で、種々の変形が可能であり、それらも本願発明の範囲内に含まれるものであることは言うまでもない。
【図面の簡単な説明】
【図１】本願発明に係るインクジェット記録装置のブロック図である。
【図２】本願発明に係るインクジェット式記録装置の平面図である。
【図３】本願発明に係るインクジェット式記録装置の側面図である。
【図４】初期値処理の手順を示したフローチャートである。
【図５】補正値の設定手順を示したフローチャートである。
【図６】搬送補正搬送量を演算する手順を示したフローチャートである。
【図７】記録紙の搬送量を補正する手順を示したフローチャートである。
【図８】記録紙の搬送量を補正する手順を示したフローチャートである。
【図９】記録紙の搬送量を補正する手順を示したフローチャートである。
【図１０】初期値処理の手順を示したフローチャートである。
【図１１】補正値の設定手順を示したフローチャートである。
【図１２】搬送補正量を演算する手順を示したフローチャートである。
【図１３】記録紙の搬送量を補正する手順を示したフローチャート。
【図１４】記録紙の搬送量を補正する手順を示したフローチャート。
【図１５】記録紙の搬送量を補正する手順を示したフローチャート。
【符号の説明】
１　情報処理装置、２　記録制御部、５０　インクジェット式記録装置、
５１　キャリッジガイド軸、５２　プラテン、５３　搬送駆動ローラ、
５４　搬送従動ローラ、５５　排紙駆動ローラ、５６　排紙従動ローラ、
５７　給紙トレイ、５７ｂ　給紙ローラ、６１　キャリッジ、
６２　記録ヘッド、６３　紙検出器、Ｘ　主走査方向、Ｙ　副走査方向[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a recording paper transporting device that brings a recording paper into close contact with a peripheral surface of a transport roller that is rotated by a rotational driving force of a rotational driving force source, and transports the recording paper by a predetermined transport amount in a predetermined direction by rotation of the transport roller. The present invention relates to a recording paper transport amount correction control method, a recording paper transport amount correction control device, and a recording paper transport amount correction control program for correcting a recording paper transport amount error in a recording apparatus provided with the printer.
[0002]
[Prior art]
2. Description of the Related Art A recording device such as an ink jet recording device makes a recording paper adhere to a peripheral surface of a transport roller which is rotated by a rotational driving force of a rotational driving force source, and rotates the transport roller to move the recording paper in a predetermined direction by a predetermined transport amount. Generally, a recording device having a recording paper transport device for transporting is known, and as an example, a recording device having a configuration capable of selectively feeding a cut sheet and a continuous paper and performing printing is known. is there. When recording on a cut sheet, the cut sheet is transported by the above-described transport roller, and when recording is performed on the continuous sheet, the recording sheet is moved along the side edge of the continuous sheet provided along with the transport roller. Generally, continuous paper is conveyed by a tractor, sprocket, or the like that rotates by engaging with a feed hole provided. In such a recording apparatus, when the continuous paper is transported, the transport by the transport roller is set to be slightly over-feeded from the tractor so that the continuous paper does not slack between the transport roller and the tractor. As a result, when printing is performed on a cut sheet, there is a problem that a transfer error is accumulated every time the cut sheet is conveyed, and the recording execution position in the conveying direction is shifted. For this reason, a technique is known in which the conveyance amount is corrected when the conveyance amount of the cut sheet reaches a certain conveyance amount from the preset overfeed amount of the conveyance roller so that the recording execution position does not shift. (For example, see Patent Document 1).
[0003]
Further, on the recording paper, the conveyance roller and the recording paper are brought into close contact with each other by the frictional resistance of the peripheral surface of the conveyance roller having a high frictional resistance and the frictional resistance of the recording paper surface, so that the rotation of the conveyance roller is reliably transmitted. However, a slight slip still occurs between the peripheral surface of the transport roller and the recording paper. Further, the conveyance accuracy of the recording paper conveyance device also varies within the range of the manufacturing error, and a minute conveyance error occurs due to these factors. However, in the past, there was almost no problem because the recording image quality was hardly affected.
[0004]
[Patent Document 1]
JP 03-262666 A
[0005]
[Problems to be solved by the invention]
However, with the recent improvement in image quality of the recording apparatus, the resulting deterioration in image quality cannot be ignored. For this reason, in recent printing apparatuses capable of high-quality printing, there has been a problem of a recording paper conveyance amount correction control that can convey a recording paper with a conveyance amount in which the minute conveyance error is corrected. However, this minute transport error has an unavoidable property, and at the same time, is caused by factors such as the individual transport accuracy of the recording paper transport device and the frictional resistance of the recording paper surface that differs for each type of recording paper. Since the amount is not uniquely determined and the transport error amount is extremely small, which is much smaller than the unit transport amount (minimum transportable transport amount) of the recording paper transport device, such a small It is difficult to correct such a transport error, and it has been necessary to tolerate a certain degree of deterioration in the recording image quality due to the error.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of such a situation, and its problems are factors such as conveyance accuracy of a recording paper conveyance device and slight slippage between a peripheral surface of a conveyance roller and a recording paper surface. It is an object of the present invention to accurately correct an unavoidable minute conveyance error caused by the above, and to reduce a decrease in the recording image quality due to the correction.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention is to bring a recording paper into close contact with a peripheral surface of a transport roller that is rotated by a rotational driving force of a rotational driving force source, and to rotate the recording roller to a predetermined amount by rotating the transport roller. A recording paper transport amount correction control method for correcting an error in the transport amount of a recording paper in a recording apparatus provided with a recording paper transport device that transports a predetermined transport amount in a direction, comprising: N, the transport error amount per unit transport amount by the recording paper transport device is ADJM, the transport error amount per unit transport amount by the type of recording paper is ADJP, the transport correction amount per unit transport amount s = ADJM + ADJP, before correction X is the conveyance amount of the recording paper, x is the conveyance correction amount obtained by integrating the conveyance correction amount x · s per the conveyance amount of the recording paper, and r is an integer obtained by dividing the conveyance correction amount integrated value r by the unit conveyance amount N. Quotient of Q And, conveying amount of the correction after the recording paper = (x + Q) · N, conveying correction amount integrated value after correction = a r-Q · N, a recording sheet conveyance amount correction control method wherein the.
[0008]
As described above, the recording paper is transported in such a manner that the recording paper is brought into close contact with the peripheral surface of the transport roller that is rotated by the rotational driving force of the rotational driving force source, and the recording paper is transported by a predetermined transport amount in a predetermined direction by the rotation of the transport roller. In the apparatus, the conveyance accuracy of the recording paper conveyance device also varies within the range of the manufacturing error, and a slight conveyance error occurs due to a slight slip generated between the peripheral surface of the conveyance roller and the recording paper. . Therefore, first, the transport error amount ADJM per unit transport amount by the recording paper transport device, that is, the transport error amount per unit transport amount caused by the individually different recording paper transport devices due to the manufacturing error of the recording paper transport device, and the recording paper Of the transport error ADJP per unit transport amount according to the type of the recording paper, that is, the transport error amount per unit transport amount due to the slip generated between the surface of the recording paper and the peripheral surface of the transport roller that differs depending on the type of the recording paper. A transport correction amount s per unit transport amount is obtained. Here, the unit transport amount N is the minimum unit transport amount of the recording paper transport device. Therefore, the transport correction amount s per unit transport amount is a transport correction amount for the minimum unit transport amount of the recording paper transport device. The type of recording paper indicates the material, size, shape, and the like of the recording paper.
[0009]
Next, a conveyance correction amount x · s per conveyance amount of the recording paper is obtained. Specifically, the conveyance amount x · N before correction when the recording paper is conveyed by the recording paper conveyance device is divided by the unit conveyance amount N, and x obtained as a quotient is converted to the conveyance correction amount s per unit conveyance amount. Multiply. Each time the recording paper is conveyed, the conveyance correction amount x · s per the conveyance amount is integrated, and the conveyance amount (Q · N) obtained by multiplying the unit conveyance amount N by the integer quotient Q is calculated. The transport is performed by adding to the transport amount (x · N). At the same time, the transport amount (Q · N) obtained by multiplying the unit transport amount N by the integer quotient Q is subtracted from the transport correction amount integrated value r. That is, the integrated transport error amount s per unit transport amount is added to the transport amount of the recording paper by the unit transport amount N, which is the minimum transport amount of the recording paper transport device, and the transport is performed. Is corrected by the unit transport amount N. Then, by subtracting the added transport amount (Q · N) from the transport correction amount integrated value r, the corrected transport correction amount integrated value r is always smaller than the unit transport amount N.
[0010]
In this way, the transport error due to the transport accuracy of the recording paper transport device, which is accumulated every time the recording paper is transported, and the transport error due to the slip generated between the recording paper surface and the peripheral surface of the transport roller are integrated, that is, the unit is: The transport error is accumulated by integrating the transport correction amount s per transport amount and adding the integrated transport correction amount s by the minimum transport unit that can be transported by the recording paper transport device, that is, by the unit transport amount N. Thus, it is possible to prevent the transport error of the recording paper from gradually increasing. If the correction amount to be added is to be corrected in the recording paper transport direction, a positive value correction amount is added, and if the correction is performed in the opposite direction to the recording paper transport direction, a negative value correction amount is corrected. Will be added.
[0011]
Thus, according to the recording paper transport amount correction control method shown in the first aspect of the present invention, it is possible to prevent the transport error from being accumulated and the transport error of the recording paper from gradually increasing. , It is possible to accurately correct the inevitable minute transport error caused by factors such as the transport accuracy of the recording paper transport device and a slight slip between the peripheral surface of the transport roller and the recording paper surface, thereby enabling recording. The operation and effect of reducing the deterioration of the recording image quality due to the accumulation of paper transport errors can be obtained.
[0012]
According to a second aspect of the present invention, in the above-described first aspect, the transport error amount ADJM per unit transport amount by the recording paper transport device and the transport error amount ADJP per unit transport amount by the type of the recording paper are set as the above. A recording paper transport amount correction control method characterized by acquiring from a storage device connected to a recording apparatus.
[0013]
According to the recording paper transport amount correction control method according to the second aspect of the present invention, in addition to the operation and effect of the invention described in the first aspect, the recording paper transport amount per unit transport amount due to the transport accuracy of the recording paper transport device Of the transport error ADJM and the transport error ADJP per unit transport amount depending on the type of the recording paper are obtained from the external storage means. Can easily be changed and updated, and the effect of easily responding to new recording paper can be obtained.
[0014]
According to a third aspect of the present invention, in the first or second aspect described above, the type of the recording paper is detected from the recording paper, and the transport error amount ADJP per unit transport amount according to the detected type of the recording paper. And a control method for correcting the amount of conveyance of the recording paper.
[0015]
According to the recording paper transport amount correction control method shown in the third aspect of the present invention, in addition to the effects of the invention described in the first aspect or the second aspect, the type of the recording paper can be changed. , And obtains the transport error amount ADJP per unit transport amount according to the detected type of the recording paper, so that the step of setting the type of the recording paper at the time of performing the recording is not required, and the process of the recording execution control is simplified. The operation and effect can be obtained.
[0016]
According to a fourth aspect of the present invention, in the first aspect described above, the transport error amount ADJM per unit transport amount by the recording paper transport device is obtained from a non-volatile storage medium mounted on the recording device, and the recording error ADJM is recorded. The transport error amount ADJP per unit transport amount according to the type of paper is obtained from an information processing apparatus connected to the printing apparatus so as to be able to transmit information.
[0017]
Since the transport error amount ADJM per unit transport amount due to the transport accuracy of the recording paper transport device is unique to the recording paper transport device for each recording paper transport device, a non-volatile memory such as a flash memory mounted on the recording device is used. By storing it in the medium in advance, it can be read out whenever the transport correction amount s per unit transport amount is obtained. On the other hand, the transport error amount ADJP per unit transport amount depending on the type of the recording paper differs depending on the type of the recording paper on which the recording is performed, and therefore, for example, an information processing apparatus such as a personal computer connected to the recording apparatus at the time of performing the recording. By obtaining, the transport error amount ADJP per unit transport amount according to the type of the recording paper on which the printing is performed can be obtained.
[0018]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects described above, when the transport amount of the recording paper is less than a certain transport amount, the transport correction amount integrated value r is added to the transport correction amount integrated value r. A recording paper conveyance amount correction control method characterized in that the conveyance correction amount x · s per conveyance amount at the time is not integrated.
[0019]
If the transport amount of the recording paper is a small transport amount that is less than a certain transport amount, if the transport amount is corrected, the transport amount will change greatly. That is, even when the transport amount of the recording paper is less than the fixed transport amount, if the transport correction amount x · s per the transport amount is integrated into the transport correction amount integrated value r, the transport correction amount integration When the value r exceeds the unit transport amount N, the unit transport amount N is added to the transport amount, and the recording paper is transported. If the transport amount is corrected by adding the unit transport amount N to a small transport amount that is less than a certain transport amount, the transport amount will change drastically, and the recording image quality may be significantly reduced. is there. Therefore, when the conveyance amount of the recording paper is less than the fixed conveyance amount, the conveyance correction amount x · s per conveyance amount during the conveyance is not integrated into the conveyance correction amount integrated value r, so that the conveyance amount is smaller than the certain conveyance amount. It is possible to prevent the unit transport amount N from being added to the small transport amount and transporting the recording paper.
[0020]
Thus, according to the recording paper transport amount correction control method according to the fifth aspect of the present invention, in addition to the functions and effects according to the first to fourth aspects described above, a constant transport amount is provided. Since it is possible to prevent the recording paper from being conveyed by correcting a small conveyance amount of less than, it is possible to prevent the conveyance amount from being significantly changed and the recording image quality from being significantly reduced. Is obtained.
[0021]
According to a sixth aspect of the present invention, in any one of the first to fourth aspects described above, when the transport amount of the recording paper is less than a certain transport amount, the transport amount of the corrected recording paper = x · N, and the correction value of the conveyance correction amount integrated value after correction = r.
[0022]
As described above, in the case where the transport amount of the recording paper is a small transport amount less than the fixed transport amount, if the transport amount is corrected, the transport amount will change greatly, and the recording image quality will be rather increased. There is a risk of lowering. Therefore, when the transport amount of the recording paper is smaller than the predetermined transport amount, the recording paper is transported without adding the transport amount (Q · N) obtained by multiplying the unit transport amount N by the integer quotient Q to the transport amount of the recording paper. . That is, regardless of the value of the conveyance correction amount integrated value r before the correction, if the conveyance amount of the recording paper is less than the predetermined conveyance amount, the conveyance amount of the recording paper is not corrected, so that the conveyance amount is reduced. It is possible to prevent the recording quality from being greatly changed and greatly degrading the recording image quality.
[0023]
Thus, according to the recording paper transport amount correction control method according to the sixth aspect of the present invention, in addition to the effects of the invention according to any one of the first to fourth aspects described above, It is possible to prevent the recording paper from being conveyed by correcting a small conveyance amount that is smaller than the conveyance amount, thereby preventing the conveyance amount from being significantly changed and the recording image quality from being significantly degraded. The operation and effect are obtained.
[0024]
According to a seventh aspect of the present invention, in any one of the first to fourth aspects described above, the conveyance amount of the recording paper is continuously less than a certain conveyance amount near the upper end and the lower end of the recording paper. When printing is performed, printing is performed without integrating the transport correction amount x · s per transport amount during the transport into the transport correction amount integrated value r, and the transport amount of the recording paper is less than the fixed transport amount. When recording and recording in which the transport amount of the recording paper is equal to or more than the predetermined transport amount are alternately performed, the recording is performed with the transport correction amount integrated value r when the recording is performed in which the transport amount of the recording paper is less than the predetermined transport amount. The recording is characterized in that the conveyance correction amount x · s per conveyance amount at the time of conveyance is integrated, the conveyance amount of the recording paper after correction = x · N, and the conveyance correction amount integrated value after correction = r. This is a paper conveyance amount correction control method.
[0025]
As described above, if a small carry amount smaller than a certain carry amount is corrected, the carry amount will change significantly, and the recording image quality may be significantly reduced. Therefore, when the transport amount of the recording paper is less than the predetermined transport amount, the unit transport amount N is not added to the transport amount of the recording paper, so that the transport amount changes drastically and the recording image quality is greatly reduced. Can be prevented. At this time, the value of the subsequent transport correction amount integrated value r differs depending on whether or not the transport correction amount x · s per transport amount is added to the transport correction amount integrated value r. The correction of the transport error will be different. Therefore, when the transport amount of the recording paper is less than the fixed transport amount, one criterion for determining whether to add the transport correction amount x · s per the transport amount to the transport correction amount integrated value r is a constant. It is possible to correct the transport amount more accurately by using as a guide whether or not the transport of the recording paper is continued below the transport amount.
[0026]
In other words, when recording is continuously performed with the conveyance amount of the recording paper less than the fixed conveyance amount near the upper end and the lower end of the recording paper, the conveyance correction amount integrated value r remains unchanged without correcting the conveyance amount of the recording paper. Since the conveyance correction amount x · s per conveyance amount in the meantime continues to be accumulated, after the recording is continuously performed with the conveyance amount of the recording paper less than the predetermined conveyance amount, the conveyance amount of the recording paper becomes constant. When the transport amount exceeds the transport amount, a large correction amount is added to the transport amount of the recording paper, and a large transport error may occur. Therefore, recording is performed without integrating the transport correction amount x · s per transport amount during the transport into the transport correction amount integrated value r. On the other hand, when recording in which the transport amount of the recording paper is less than the predetermined transport amount and recording in which the transport amount of the recording paper is equal to or more than the predetermined transport amount are alternately performed, the transporting is performed without correcting the transport amount of the recording paper. Since there is no danger that the transport correction amount per amount x · s will continue to be accumulated, when the recording paper transport amount is smaller than the fixed transport amount, the transport correction amount integrated value r is added to the transport amount during the transport. The conveyance correction amount x · s is integrated and recording is performed.
[0027]
Thus, according to the recording paper conveyance amount correction control method according to the seventh aspect of the present invention, in addition to the operation and effect of the invention according to any one of the first to fourth aspects described above, recording is performed. When recording is performed continuously near the upper end and the lower end of the paper with the transport amount of the recording paper being less than the constant transport amount, the recording is continuously performed with the transport amount of the recording paper being less than the constant transport amount. After that, when the transport amount of the recording paper becomes a transport amount equal to or more than a certain transport amount, it is possible to prevent a large correction amount from being added to the transport amount of the recording paper and causing a large transport error. . In addition, when recording in which the transport amount of the recording paper is less than the predetermined transport amount and recording in which the transport amount of the recording paper is equal to or more than the predetermined transport amount are alternately executed, the transporting is performed without correcting the transport amount of the recording paper. There is no danger that the transport correction amount x · s per amount will continue to be accumulated. Accordingly, the effect of recording can be achieved more accurately and with less risk of deterioration of the recorded image quality when performing recording including transport of the recording paper in which the transport amount is less than the predetermined transport amount.
[0028]
According to an eighth aspect of the present invention, a recording paper is brought into close contact with a peripheral surface of a transport roller which is rotated by the rotational driving force of a rotational driving force source, and the recording roller is rotated in a predetermined direction by a predetermined transport amount by the rotation of the transport roller. What is claimed is: 1. A recording apparatus comprising a recording paper transport device for transporting, wherein a recording paper transport amount correction control device for correcting an error in the transport amount of the recording paper, wherein a unit transport amount of the recording paper transport device is N, ADJM is the transport error amount per unit transport amount by the apparatus, ADJP is the transport error amount per unit transport amount depending on the type of recording paper, and transport correction amount calculation means that sets transport correction amount s = ADJM + ADJP, and the transport amount of recording paper A transport correction amount integrating means for integrating the transport correction amount x · s per unit to obtain a transport correction amount integrated value r, a transport amount of the recording paper before correction being x · N, and a transport correction amount integrated value r being a unit transport amount. Divided by N A conveyance amount correction unit that sets the quotient of the number to Q and the conveyance amount of the recording paper after correction = (x + Q) · N, and a conveyance correction amount integrated value where the corrected conveyance correction amount = r−Q · N A recording paper transport amount correction control device comprising a subtraction unit.
According to the recording paper transport amount correction control device according to the eighth aspect of the present invention, the same effect as the above-described invention according to the first aspect of the present invention is obtained in the recording paper transport amount correction control device. be able to.
[0029]
According to a ninth aspect of the present invention, in the above-described eighth aspect, the transport error amount ADJM per unit transport amount by the recording paper transport device and the transport error amount ADJP per unit transport amount according to the type of recording paper are set as the above. A recording paper transport amount correction control device, comprising: means for acquiring from an external storage means connected to the recording apparatus.
According to the recording paper transport amount correction control device shown in the ninth aspect of the present invention, the recording paper transport amount correction control device obtains the same operation and effect as the above-described invention according to the second aspect of the present invention. be able to.
[0030]
According to a tenth aspect of the present invention, in the above-described eighth or ninth aspect, means for detecting the type of recording paper from the recording paper, and a transport error per unit transport amount depending on the detected type of recording paper. And a means for acquiring the amount ADJP.
According to the recording paper transport amount correction control device shown in the tenth aspect of the present invention, the same effect as the above-described invention according to the third aspect of the present invention is obtained in the recording paper transport amount correction control device. be able to.
[0031]
According to an eleventh aspect of the present invention, in the above-mentioned eighth aspect, the transport error ADJM per unit transport amount by the recording paper transport device is acquired from the non-volatile storage medium mounted on the recording device, and the recording is performed. Recording paper transport amount correction control, comprising transport error amount acquisition means for acquiring a transport error amount ADJP per unit transport amount according to the type of recording paper from an information processing device connected to the apparatus so that information can be transmitted. Device.
According to the recording paper transport amount correction control device shown in the eleventh aspect of the present invention, the same effect as the above-described invention according to the fourth aspect of the present invention is obtained in the recording paper transport amount correction control device. be able to.
[0032]
According to a twelfth aspect of the present invention, in any one of the eighth to eleventh aspects described above, the transport correction amount integrating means is configured to output the transport correction amount when the transport amount of the recording paper is less than a predetermined transport amount. A recording paper conveyance amount correction control device characterized in that a conveyance correction amount x · s per conveyance amount during the conveyance is not integrated into the correction amount integrated value r.
According to the recording paper transport amount correction control device shown in the twelfth aspect of the present invention, the recording paper transport amount correction control device obtains the same operation and effect as the above-described invention of the fifth aspect of the present invention. be able to.
[0033]
According to a thirteenth aspect of the present invention, in any one of the above-described eighth to eleventh aspects, when the transport amount of the recording paper is less than a fixed transport amount, the transport amount correcting unit may perform the correction after the correction. The recording paper conveyance amount correction control device is characterized in that the conveyance amount of the recording paper is x · N, and the conveyance correction amount integrated value subtraction means is the corrected conveyance correction amount integrated value = r.
According to the recording paper transport amount correction control device shown in the thirteenth aspect of the present invention, the recording paper transport amount correction control device obtains the same operation and effect as the above-described invention according to the sixth aspect of the present invention. be able to.
[0034]
According to a fourteenth aspect of the present invention, in any one of the above-described eighth to eleventh aspects, the transport correction amount integrating means is configured such that the transport amount of the recording paper is continuous near the upper end and the lower end of the recording paper. When the recording is performed with a conveyance amount smaller than the predetermined conveyance amount, the conveyance correction amount x · s per conveyance amount during the conveyance is not integrated in the conveyance correction amount integrated value r, and the conveyance amount of the recording paper is constant. When recording with the transport amount less than the transport amount and recording with the transport amount of the recording paper being equal to or greater than the constant transport amount are alternately performed, the transport correction amount integration is performed when the recording with the transport amount of the recording paper is less than the constant transport amount. The value r is multiplied by the conveyance correction amount x · s per conveyance amount at the time of the conveyance, and the conveyance amount correction unit performs recording when the conveyance amount of the recording paper is less than the predetermined conveyance amount and when the conveyance amount of the recording paper is constant. When the recording with the transport amount equal to or more than is performed alternately, the transport amount of the recording paper is less than the constant transport amount. At the time of printing, the transport amount of the corrected recording paper is set to x · N, and the transport correction amount integrated value subtraction means performs the recording when the transport amount of the recording paper is less than the predetermined transport amount and when the transport amount of the recording paper is constant. When the recording is performed alternately with the recording amount equal to or more than the conveyance amount, when the recording amount is smaller than the predetermined conveyance amount, the conveyance correction amount integrated value after correction is set to r. This is a recording paper transport amount correction control device.
According to the recording paper transport amount correction control device shown in the fourteenth aspect of the present invention, the recording paper transport amount correction control device obtains the same operation and effect as the above-described invention according to the seventh aspect of the present invention. be able to.
[0035]
According to a fifteenth aspect of the present invention, there is provided a recording apparatus including the recording paper transport amount correction control device according to any one of the eighth to fourteenth aspects.
According to the recording apparatus shown in the fifteenth aspect of the present invention, it is possible to obtain the effects of the invention according to any one of the above-described eighth to fourteenth aspects in the recording apparatus.
[0036]
According to a sixteenth aspect of the present invention, a recording sheet is brought into close contact with a peripheral surface of a transport roller that is rotated by a rotational driving force of a rotational driving force source, and the recording roller is rotated in a predetermined direction by a predetermined transport amount by the rotation of the transport roller. A recording paper transport amount correction control program for causing a computer to execute a control for correcting an error in a transport amount of a recording paper in a recording device having a recording paper transport device for transporting, wherein the unit transport of the recording paper transport device is performed. A transport correction amount calculation in which the amount is N, the transport error amount per unit transport amount by the recording paper transport device is ADJM, the transport error amount per unit transport amount according to the type of recording paper is ADJP, and the transport correction amount s = ADJM + ADJP. Procedure, a conveyance correction amount integration procedure for integrating the conveyance correction amount x · s per recording paper conveyance amount to obtain a conveyance correction amount integrated value r, and a conveyance amount of the recording paper before correction being x · N. A conveyance amount correction procedure in which the integral quotient obtained by dividing the conveyance correction amount integrated value r by the unit conveyance amount N is Q, and the conveyance amount of the recording paper after correction = (x + Q) · N, and the conveyance correction amount integration after correction And a conveyance correction amount subtraction procedure for setting the value = r−Q · N.
[0037]
According to the recording paper transport amount correction control program shown in the sixteenth aspect of the present invention, the same operation and effect as the above-described invention of the first aspect of the present invention can be obtained, and this recording paper transport can be achieved. The same operation and effect as those of the first aspect of the present invention described above can be provided to any recording apparatus capable of executing the amount correction control program.
[0038]
According to a seventeenth aspect of the present invention, in the sixteenth aspect described above, the transport error amount ADJM per unit transport amount by the recording paper transport device and the transport error amount ADJP per unit transport amount by the type of recording paper are set as the above. A recording paper conveyance amount correction control program having a procedure of acquiring from a storage device connected to a recording apparatus.
[0039]
According to the recording paper transport amount correction control program shown in the seventeenth aspect of the present invention, the same operation and effect as the above-described invention of the second aspect of the present invention can be obtained, and this recording paper transport can be achieved. The same operation and effect as the above-described invention according to the second aspect of the present invention can be provided to any recording apparatus capable of executing the amount correction control program.
[0040]
According to an eighteenth aspect of the present invention, in the sixteenth aspect or the seventeenth aspect, a procedure for detecting the type of the recording paper from the recording paper, and a transport error per unit transport amount depending on the detected type of the recording paper. And a procedure for acquiring the amount ADJP.
[0041]
According to the recording paper conveyance amount correction control program shown in the eighteenth aspect of the present invention, the same operation and effect as those of the invention described in the third aspect of the present invention can be obtained, and this recording paper conveyance can be achieved. The same operation and effect as the above-described invention according to the third aspect of the present invention can be provided to any recording device capable of executing the amount correction control program.
[0042]
According to a nineteenth aspect of the present invention, in the sixteenth aspect described above, a transport error amount ADJM per unit transport amount by the recording paper transport device is acquired from the nonvolatile storage medium mounted on the recording device, and the recording is performed. A recording paper transport amount correction control program characterized by comprising a procedure of acquiring a transport error amount ADJP per unit transport amount according to a type of recording paper from an information processing apparatus connected to the apparatus so that information can be transmitted.
[0043]
According to the recording paper conveyance amount correction control program shown in the nineteenth aspect of the present invention, the same operation and effect as those of the invention described in the fourth aspect of the present invention can be obtained, and this recording paper conveyance can be achieved. The same operation and effect as those of the above-described fourth aspect of the present invention can be provided for any recording apparatus that can execute the amount correction control program.
[0044]
According to a twentieth aspect of the present invention, in any one of the sixteenth aspect to the nineteenth aspect, the transport correction amount integrating step includes the step of: when the transport amount of the recording paper is less than a certain transport amount, A recording paper transport amount correction control program characterized by having a procedure of not integrating the transport correction amount x · s per transport amount during the transport into the correction amount integrated value r.
[0045]
According to the recording paper transporting amount correction control program shown in the twentieth aspect of the present invention, the same operation and effect as those of the invention described in the fifth aspect of the present invention can be obtained, and this recording paper transporting can be achieved. The same operation and effect as the invention described in the fifth aspect of the present invention described above can be provided to any recording device capable of executing the amount correction control program.
[0046]
According to a twenty-first aspect of the present invention, in any one of the sixteenth aspect to the nineteenth aspect described above, the transport amount correction step is performed after the correction if the transport amount of the recording paper is less than a predetermined transport amount. The conveyance correction amount integrated value subtraction step is performed when the conveyance amount of the recording paper is less than a predetermined conveyance amount. A recording paper conveyance amount correction control program having a procedure of setting value = r.
[0047]
According to the recording paper transport amount correction control program shown in the twenty-first aspect of the present invention, it is possible to obtain the same operation and effect as the above-described invention of the sixth aspect of the present invention, and to realize the recording paper transport. The same operation and effect as the above-described invention according to the sixth aspect of the present invention can be provided to any recording device capable of executing the amount correction control program.
[0048]
According to a twenty-second aspect of the present invention, in any one of the sixteenth aspect to the nineteenth aspect, the conveying correction amount integrating procedure is such that the conveying amount of the recording paper is continuous near the upper end and the lower end of the recording paper. When the recording is executed with less than a certain conveyance amount, a procedure in which the conveyance correction amount x · s per conveyance amount during the conveyance is not added to the conveyance correction amount integrated value r, and a case where the conveyance amount of the recording paper is constant. When the recording with the transport amount of the recording paper is less than the constant transport amount is performed alternately with the recording with the transport amount of the recording paper less than the constant transport amount, the transport correction amount A step of multiplying the integrated value r by a conveyance correction amount x · s per conveyance amount at the time of the conveyance. The conveyance amount correction procedure includes: recording the conveyance amount of the recording paper less than a predetermined conveyance amount; When the recording is performed alternately with the paper conveyance amount exceeding a certain conveyance amount, the recording paper When the recording is performed with the transported amount being less than the fixed transport amount, the corrected transport amount of the recording paper = xN. If the recording with the transport amount of the recording paper less than the fixed transport amount is performed alternately with the recording with the transport amount of the recording paper being less than the constant transport amount, the corrected transport is performed. This is a recording paper conveyance amount correction control program having a procedure of setting a correction amount integrated value = r.
[0049]
According to the recording paper transport amount correction control program shown in the twenty-second aspect of the present invention, the same operation and effect as the above-described invention of the seventh aspect of the present invention can be obtained, and this recording paper transport can be achieved. The same operation and effect as the above-described seventh aspect of the present invention can be provided to any recording apparatus capable of executing the amount correction control program.
[0050]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
First, the configuration of an ink jet recording apparatus as a “recording apparatus” according to the present invention will be described. FIG. 1 is a schematic block diagram of an ink jet recording apparatus according to the present invention.
[0051]
The ink jet recording apparatus 50 includes a recording control unit 2 that controls various recording processes. In the recording control unit 2, the central processing unit MPU 24 performs various types of processing. The ROM 21 stores in advance software programs and data required for the arithmetic processing of the MPU 11. The RAM 22 is used as a temporary storage area for software programs, a work area for the MPU 24, and the like. The nonvolatile storage medium 23 such as a flash memory stores predetermined data as a result of the arithmetic processing performed by the MPU 24, and retains the data even when the power of the inkjet recording apparatus 50 is turned off.
[0052]
Further, the recording control unit 2 is connected to the information processing device 1 such as a personal computer via an interface unit 27 having an interface function with an external device, and exchanges various information and data with the information processing device 1. It has a configuration that allows input and output. The I / O 25 performs output control on the various motor control units 31 and the recording head driver 33 via the input / output unit 26 based on the calculation processing result in the MPU 24, and inputs information from the various sensors 32. Enter
[0053]
The various motor control unit 31 is a drive control circuit that drives and controls various motors of the ink jet recording apparatus 50, and is controlled by the recording control unit 2. The recording head driver 33 is a driver that is connected to a recording head that performs recording processing on recording paper and controls the recording processing for the recording head. The various sensors 32 detect various state information of the ink jet recording apparatus 50 and output the information to the I / O 25 via the input / output unit 26.
[0054]
FIG. 2 is a schematic plan view of the ink jet recording apparatus 50 according to the present invention, and FIG. 3 is a side view thereof.
The ink jet recording apparatus 50 is provided with a carriage 61 that is supported by a carriage guide shaft 51 and moves in the main scanning direction X as a recording unit that performs recording on the recording paper P. The carriage 61 is provided with a recording head 62 that performs recording by discharging ink onto the recording paper P. A platen 52 that defines a gap between the head surface of the recording head 62 and the recording paper P is provided to face the recording head 62. Then, the carriage 61 is transported in the main scanning direction X, the recording paper P is transported between the carriage 61 and the platen 52 by a predetermined transport amount in the sub scanning direction Y, and the recording head 62 is moved one time in the main scanning direction X. Recording on the recording paper P is performed by alternately repeating the operation of ejecting ink from the recording head 62 onto the recording paper P during reciprocation.
[0055]
The paper feed tray 57 is configured to be capable of feeding recording paper P such as plain paper or photo paper, for example, and is provided with an ASF (auto sheet feeder) for automatically feeding the recording paper P. I have. The ASF is an automatic paper feed mechanism having two paper feed rollers 57b provided on the paper feed tray 57 and a separation pad (not shown).
[0056]
One of the two paper feed rollers 57b is disposed on one side of the paper feed tray 57, and the other paper feed roller 57b is attached to a recording paper guide 57a. It is provided on the paper feed tray 57 so as to be slidable in the width direction according to the width of P. Then, due to the rotational driving force of the paper feed roller 57b and the frictional resistance of the separation pad, when the plurality of recording papers P placed on the paper feed tray 57 are fed, the plurality of recording papers P are fed at once. Paper is fed automatically one sheet at a time without any need.
[0057]
A transport driving roller 53 and a transport driven roller 54 are provided as a recording paper transport unit that transports the recording paper P in the sub-scanning direction Y. The transport driving roller 53 is rotationally controlled by a rotational driving force of a stepping motor or the like, and the recording paper P is transported in the sub-scanning direction Y by the rotation of the transport driving roller 53. A plurality of transport driven rollers 54 are provided, each of which is individually urged by the transport drive roller 53, and when the recording paper P is transported by the rotation of the transport drive roller 53, the recording paper P is in contact with the recording paper P. Rotates following the transport of The surface of the transport drive roller 53 is provided with a film having a high frictional resistance. The recording paper P pressed against the surface of the transport drive roller 53 by the transport driven roller 54 comes into close contact with the surface of the transport drive roller 53 due to the frictional resistance of the surface, and is transported in the sub-scanning direction by the rotation of the transport drive roller 53. You.
[0058]
Further, between the paper feed roller 57b and the transport drive roller 53, a paper detector 63 according to a technique known in the related art is provided. The paper detector 63 has a lever that is provided with a self-returning behavior to a standing posture, and is pivotally supported in a state of protruding into the transport path of the recording paper P so that it can rotate only in the recording paper transport direction. This is a detector having a configuration in which the lever is rotated by the tip of the lever being pressed by the recording paper P, whereby the recording paper P is detected. The paper detector 63 detects the start position and the end position of the recording paper P fed from the paper feed roller 57b, determines a recording area in accordance with the detected positions, and executes recording.
[0059]
On the other hand, as means for discharging the recorded recording paper P, a paper discharge drive roller 55 and a paper discharge driven roller 56 are provided. The discharge drive roller 55 is rotationally controlled by a rotational driving force of a stepping motor or the like, and the recording paper P is discharged in the sub-scanning direction Y by the rotation of the discharge drive roller 55. The paper discharge driven roller 56 is a toothed roller having a plurality of teeth around it and having a sharp tip sharp at the tip of each tooth so as to make point contact with the recording surface of the recording paper P. The plurality of paper discharge driven rollers 56 are individually urged by the paper discharge drive roller 55, and come into contact with the recording paper P when the recording paper P is discharged by the rotation of the paper discharge drive roller 55. It rotates following the paper ejection.
[0060]
A rotation drive motor (not shown) for rotating the paper feed roller 57b, the transport drive roller 53, and the paper discharge drive roller 55, and a carriage drive motor (not shown) for driving the carriage 61 in the main scanning direction include: The driving is controlled by the recording operation control unit 2. Similarly, the recording head 62 is controlled by the recording operation control unit 2 to discharge ink onto the surface of the recording paper P.
[0061]
Next, the procedure of the recording paper conveyance amount correction control by the recording control unit 2 of the ink jet recording apparatus 50 according to the present invention will be described. FIG. 4 is a flowchart showing the procedure of the initial value processing in the procedure of the recording paper conveyance amount correction control according to the present invention.
[0062]
Here, assuming that “the transport error amount per transport amount α by the recording paper transport device” is ADJM, “the transport error amount per transport amount α by the type of recording paper” is ADJP, and the transport amount α is 1 inch, ADJM is the transport error amount per inch of the recording paper transport means by the transport drive roller 53 and the transport driven roller 54, and ADJP is the transport error amount per inch depending on the type of the recording paper P. The “constant transport amount” is MINF. MINF is a minimum transport amount for correcting the transport amount. In order to prevent a large error in the transport amount by correcting the transport amount, the transport amount of the recording paper is less than the MINF. In this case, the correction of the carry amount is not performed.
[0063]
First, ADJP is set to 0 as an initial value (step S1). The initial state of the ink jet recording apparatus 50, that is, when the power of the ink jet recording apparatus is turned on, or when the recording control unit 2 of the ink jet recording apparatus 50 is reset by an initialization request signal from the information processing apparatus 1, the initial state. In a case such as a state, there is no type information of the recording paper P on which recording is to be performed, so that the initial value is set to 0. Also, since the minimum transport amount for correcting the transport amount is different depending on the type of the recording paper P and the like, it is similarly set to 0 as an initial value (step S2). Then, the correction value A as the transport error amount per inch of the recording paper transport means stored in the nonvolatile storage medium 23 is set to ADJM (step S3).
[0064]
FIG. 5 is a flowchart showing a procedure for setting a correction value in the procedure of the recording paper transport amount correction control according to the present invention. In this procedure, the correction values required to correct the transport amount of the recording paper P at the time of recording are set to ADJP and MINF, which are initially set to 0. That is, the correction value B as the “conveyance error amount per inch according to the type of the recording paper P” received from the information processing device 1 (procedure for acquiring the conveyance error amount) is set to ADJP (step S11). The correction value C as a constant transport amount received from 1 is set in MINF (step S12).
[0065]
FIG. 6 is a flowchart showing a “transport correction transport amount calculation procedure” for calculating the transport correction transport amount in the recording paper transport control procedure according to the present invention.
Here, when the unit transport amount N, that is, the minimum unit transport amount by the recording paper transport unit is defined as one step, the above-described transport amount α, the correction value A, the correction value B, and the correction value C are defined as the unit transport amount N. , The carry amount α, ADJP, ADJM, and MINF are converted into the number of steps in units of the unit carry amount N. Then, a value obtained by adding ADJP and ADJM converted to the number of steps is divided by a value obtained by converting the transport amount α to the number of steps (5760 steps in the present embodiment) to set the transport correction transport amount S ( Step S21). As described above, the conveyance correction conveyance amount S means the conveyance amount of the recording paper P at which the conveyance error of the recording paper P reaches the unit conveyance amount N, that is, the recording paper P is conveyed by S steps. At this point, the transport error amount of the recording paper P becomes one step, which means that the transport amount of one step needs to be corrected.
[0066]
Further, the transfer amount integrated value R is reset to 0 (step S22). The transport amount integrated value R will be described later. Note that this procedure is executed when record data is received from the information processing apparatus 1 or when record data is received from another information transmission path. Therefore, the print data includes the correction value B (the transport error amount per the transport amount α depending on the type of the recording paper) and the correction value C (the minimum transport amount for correcting the transport amount of the recording paper). Must be data. By the way, when the correction value B and the correction value C are not included in the recording data, the recording is executed with ADJP and MINF being set to 0 in the initial setting state, and the recording paper transport amount is not corrected at all. Then, the recording of the recording data is executed.
[0067]
FIG. 7 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction transport amount S in the procedure of the recording paper transport control according to the present invention.
First, the transport amount (x · N) of the recording paper P is compared with MINF to determine whether the transport amount is smaller than MINF (step S31). If the carry amount (x · N) is smaller than MINF (Yes in step S31), the recording paper P is carried by the carry amount (x · N), and the procedure ends (step S35). Therefore, when the transport amount (x · N) of the recording paper P is smaller than MINF, the transport amount (x · N) is not corrected. On the other hand, if the carry amount (x · N) is equal to or more than the MINF (No in step S31), then the value obtained by adding the carry amount integrated value R to the carry amount (x · N) is used as the carry correction carry amount S. To calculate the integer quotient Q (step S32). The transport amount integrated value R is a value obtained by integrating each transport amount of the recording paper P (a transport amount integrating procedure). Further, the remaining transport amount obtained by dividing the value obtained by adding the transport amount integrated value R to the transport amount (x · N) by the transport correction transport amount S is set as the corrected transport amount integrated value R. That is, a correction amount obtained by multiplying the transport correction transport amount S by an integer quotient Q is subtracted from the transport amount integrated value R (a transport amount integrated value subtraction procedure) (step S33). Since R / S = quotient Q + remainder, the remainder = R−S · Q. Therefore, by setting the remainder of R / S as the corrected transport amount integrated value R, the corrected transport amount integrated value = It can be RSQ. Then, the recording paper P is transported by a transport amount obtained by adding a correction amount obtained by multiplying the unit transport amount N by an integer quotient Q to the transport amount (x · N) (a transport amount correction procedure) (step S34).
[0068]
In this way, by correcting the transport amount by adding a correction amount obtained by multiplying the unit transport amount N by an integer quotient Q obtained by dividing the transport amount integrated value R, the transport error occurring on the recording paper P can be reduced. Correction can be made accurately. Further, when the transport amount of the recording paper P is less than the fixed transport amount, the transport amount is not integrated into the transport amount integrated value R, so that the unit transport amount N is added to the transport amount less than the constant transport amount. By transporting the recording paper, it is possible to prevent a large change in the transport amount, thereby preventing a transport error from occurring.
[0069]
Further, as a second embodiment of the present invention, in the above-described first embodiment, when the transport amount of the recording paper P is smaller than MINF, the transport amount is added to the transport amount integrated value R while the correction amount is increased. Is not added to the transport amount, and the recording paper P is transported. That is, in the first embodiment, when the transport amount of the recording paper P is smaller than the MINF, the recording paper P is simply transported without correcting the transport amount. In, when the transport amount of the recording paper P is smaller than MINF, the recording paper P is transported without correcting the transport amount, and the transport amount is integrated into the transport amount integrated value R.
[0070]
FIG. 8 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction transport amount S in the second embodiment of the recording paper transport control according to the present invention.
Steps S41 to S44 are the same as steps S31 to S34 in FIG. If the transport amount (x · N) of the recording paper P is smaller than MINF (Yes in step S41), the transport amount (x · N) is added to the transport amount integrated value R (step S45), and the transport amount is calculated. The recording paper P is transported at (xN) (step S46). As described above, when the transport amount of the recording paper P is less than the fixed transport amount, the transport amount integrated value R is added to the transport amount. However, the unit transport amount N (1 Since the recording paper P is conveyed by the conveyance amount without adding the correction amount multiplied by (Step), the conveyance amount of the recording paper P is less than the fixed conveyance amount regardless of the value of the conveyance amount integrated value R. In this case, it is possible to prevent the recording amount from being significantly reduced due to a large change in the transport amount.
[0071]
Furthermore, as a third embodiment of the present invention, in the first embodiment, when printing is continuously performed near the upper end and the lower end of the recording paper P with a conveyance amount smaller than MINF, the conveyance amount integrated value is used. If the recording is executed without integrating the transport amount in R, and the recording in which the transport amount is smaller than MINF and the recording in which the transport amount is equal to or more than MINF are alternately performed, when the recording in which the transport amount is smaller than MINF is performed, The transport amount is integrated without adding the correction amount to the transport amount while adding the transport amount at the time of the transport to the transport amount integrated value R, and the transport correction transport amount S is multiplied by the integer quotient Q from the transport amount integrated value R. That does not subtract the transported amount. FIG. 9 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction transport amount S in the third embodiment of the recording paper transport control according to the present invention.
[0072]
First, the transport amount (x · N) of the recording paper P is compared with MINF, and it is determined whether the transport amount (x · N) is smaller than MINF (step S51). If the carry amount (x · N) is equal to or more than MINF (No in step S51), a value obtained by adding the carry amount integrated value R to the carry amount (x · N) is divided by the carry correction carry amount S, and The integer quotient Q is calculated (step S52). Further, the remaining transport amount obtained by dividing the value obtained by adding the transport amount integrated value R to the transport amount (x · N) by the transport correction transport amount S is set as the transport amount integrated value R, that is, added to the transport amount. A correction amount obtained by multiplying the transport correction transport amount S by an integer quotient Q is subtracted from the transport amount integrated value R (a transport amount integrated value subtraction procedure) (step S53). Then, the recording paper P is transported by a transport amount obtained by adding a correction amount obtained by multiplying the unit transport amount N (one step) by an integer quotient Q to the transport amount (x · N) (a transport amount correction procedure) (step S54). ).
[0073]
On the other hand, when the carry amount (x · N) is smaller than MINF (Yes in step S51), a so-called band print mode in which printing in which the carry amount is smaller than MINF and printing in which the carry amount is equal to or more than MINF are alternately performed. It is determined whether or not (step S55). If the recording mode is not the band recording mode (No in step S55), the conveyance amount (x · N) is added to the conveyance amount integration value R (step S56), and the recording paper P is converted using the conveyance amount (x · N). It is transported (step S57). In the case of the band recording mode (Yes in step S55), similarly to the case where the carry amount (x · N) is equal to or more than MINF (No in step S51), the carry amount integrated value R is added to the carry amount (x · N). Is divided by the transport correction transport amount S to calculate the integer quotient Q (step S58). Further, the remaining transport amount obtained by dividing the value obtained by adding the transport amount integrated value R to the transport amount (x · N) by the transport correction transport amount S is set as the transport amount integrated value R. That is, a correction amount obtained by multiplying the transport correction transport amount S to be added to the transport amount by the integer quotient Q is subtracted from the transport amount integrated value R (a transport amount integrated value subtraction procedure) (step S59). Then, the recording paper P is conveyed by the transport amount (x · N) without adding a correction amount obtained by multiplying the unit transport amount N (one step) by an integer quotient Q to the transport amount (x · N). (Step S57). Therefore, when the transport amount of the recording paper P is smaller than MINF, the transport amount (x · N) is not corrected. Further, in the band recording mode, even if an integral quotient Q is obtained by dividing the transport amount integrated value R by the transport corrected transport amount S, the corresponding transport corrected transport amount S is subtracted from the transport amount integrated value R. The recording paper P is conveyed without adding the correction amount obtained by multiplying the integral quotient Q by the unit conveyance amount N to the conveyance amount (x · N).
[0074]
In other words, when recording is continuously performed near the upper end and the lower end of the recording paper P with the transport amount of the recording paper P being less than the predetermined transport amount (MINF) (when not in the band recording mode), the recording paper P Without being corrected, the transport amount during that time continues to be accumulated. Therefore, after the recording is continuously performed with the transport amount of the recording paper P being less than the MINF, when the transport amount of the recording paper P becomes a transport amount equal to or more than the MINF, the large correction amount becomes the transport amount of the recording paper P. Since there is a possibility that a large transport error may occur due to the addition, recording is performed without integrating the transport amount into the transport amount integrated value R.
[0075]
On the other hand, when recording in which the transport amount is less than the fixed transport amount and printing in which the transport amount is equal to or more than the constant transport amount are performed alternately (in the case of the band recording mode), the transport amount of the recording paper P is not corrected. Since there is no possibility that the transport amount is continued to be accumulated as it is, the recording is performed by integrating the transport amount with the transport amount integrated value R when the recording amount of the recording paper P is less than MINF. In this way, it is possible to perform recording more accurately and with less risk of deterioration of the recording image quality at the time of performing recording including transport of the recording paper P whose transport amount is less than MINF.
[0076]
Further, as a fourth embodiment of the present invention, a transport correction as a transport amount in which a transport error corresponding to a unit transport amount N is performed by using the transport amount integrated value R obtained by integrating the transport amounts in the first to third embodiments described above. While the correction amount is calculated by multiplying the integer quotient Q obtained by dividing by the transport amount by the unit transport amount N, the transport error integrated value obtained by integrating the transport error itself corresponds to the unit transport amount N. In this case, a correction amount is calculated by multiplying an integer quotient Q obtained by dividing by a carry error to be carried out by a unit carry amount N. Hereinafter, description will be made with reference to FIGS. It should be noted that parts that are redundant with the first to third embodiments will be partially omitted.
[0077]
FIG. 10 is a flowchart showing the procedure of the initial value processing of the recording paper transport amount correction control in the fourth embodiment of the present invention.
In this embodiment, “the transport error amount per unit transport amount by the recording paper transport device” is ADJM, and “the transport error amount per unit transport amount by the type of recording paper” is ADJP. MINF is the minimum transport amount for correcting the transport amount, similarly to the above-described first to third embodiments, and is intended to prevent the occurrence of a large error in the transport amount by correcting the transport amount. If the transport amount of the recording paper is less than MINF, the transport amount is not corrected. First, ADJP is set to 0 as an initial value (step S61). Since the value of MINF also differs depending on the type of the recording paper P and the like, it is similarly set to 0 as an initial value (step S62). Then, the correction value a as the transport error amount per unit transport amount of the recording paper transport unit stored in the nonvolatile storage medium 23 is set to ADJM (step S63).
[0078]
FIG. 11 is a flowchart showing a procedure for setting a correction value of the recording paper transport amount correction control in the fourth embodiment of the present invention. In this procedure, the correction values required to correct the transport amount of the recording paper P at the time of recording are set to ADJP and MINF, which are initially set to 0. That is, the correction value b as the “transport error amount per unit transport amount depending on the type of the recording sheet P” received from the information processing apparatus 1 (procedure for acquiring the transport error amount) is set to ADJP (step S71), and the information processing is performed similarly. The correction value c as the constant transport amount received from the apparatus 1 is set in MINF (step S72).
[0079]
FIG. 12 is a flowchart showing a “transport correction amount calculation procedure” for calculating the transport correction amount per unit transport amount in the recording paper transport control procedure in the fourth embodiment of the present invention.
A value obtained by adding ADJP and ADJM is set as the transport correction amount s (step S81). The transport correction amount s corresponds to a transport error per unit transport amount. Further, the transfer correction amount integrated value r is reset to 0 (step S82). The transport correction amount integrated value r will be described later. Note that this procedure is executed when record data is received from the information processing apparatus 1 or when record data is received from another information transmission path.
[0080]
FIG. 13 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction amount s in the procedure of the recording paper transport control in the fourth embodiment of the present invention.
First, the transport amount (x · N) of the recording paper P is compared with MINF to determine whether the transport amount (x · N) is smaller than MINF (step S91). If the carry amount (x · N) is smaller than MINF (Yes in step S91), the recording paper is carried by the carry amount (x · N), and the procedure ends (step S95). Therefore, when the transport amount (x · N) of the recording paper P is smaller than MINF, the transport amount is not corrected. On the other hand, when the carry amount (x · N) is equal to or more than the MINF (No in step S91), subsequently, the carry amount per the carry amount obtained by multiplying the carry amount (x · N) by the carry correction amount s. The value obtained by adding the transport correction amount integrated value r to the transport correction amount is divided by the unit transport amount N to calculate the integer quotient Q (step S92). The transport correction amount integrated value r is a value obtained by integrating the transport correction amount per transport amount of the recording paper P, that is, the transport error amount per transport amount (transport amount correction integration procedure).
[0081]
Further, by setting the remaining transport correction amount obtained by dividing the value obtained by adding the transport correction amount integrated value r to the transport correction amount per the transport amount by the unit transport amount N to the corrected transport correction amount integrated value r, A correction amount obtained by multiplying the unit conveyance amount N to be added to the conveyance amount by an integer quotient Q is subtracted from the conveyance correction amount integrated value r (step of subtracting the conveyance correction amount integrated value) (step S93). Since r / N = quotient Q + remainder, the remainder = r−Q · N. Therefore, by setting the remainder of r / N as the corrected conveyance correction amount integrated value r, the corrected conveyance correction amount is calculated. Value = r−Q · N. Then, the recording paper P is transported by a transport amount obtained by adding a correction amount obtained by multiplying the unit transport amount N by an integer quotient Q to the transport amount (x · N) (a transport amount correction procedure) (step S94). For example, the unit transport amount N is one step, and the transport amount is 100 steps. Assuming that the transport correction amount s is 0.055 steps, the transport correction amount per the transport amount is 100 × 0.055 = 5.5 steps. When this value is divided by the unit transport amount N (one step), the integer quotient Q is 5, and the remainder is 0.5 steps. Therefore, the recording paper P is conveyed in a conveyance amount of 105 steps obtained by adding the correction amount of 5 steps to the conveyance amount of 100 steps, and the conveyance correction amount integrated value r becomes 0.5 steps.
[0082]
In this manner, by adding the correction amount obtained by multiplying the unit transport amount N by the integer quotient Q obtained by dividing the transport correction amount integrated value r by the unit transport amount N, the integrated transport error amount is reduced to the unit transport amount N. The transport error of the recording sheet P can be corrected by adding the transport amount to the transport amount. As a result, the transport error of the recording paper P is corrected in the same manner as in the recording paper transport amount correction control procedure shown in the first embodiment, whereby the transport error occurring on the recording paper P is accurately corrected. Can be. When the transport amount of the recording paper P is less than the predetermined transport amount, the transport correction amount per the transport amount is not integrated into the transport correction amount integrated value r, so that the recording paper transport amount shown in the first embodiment is used. Similarly to the correction control procedure, when the recording paper is conveyed by adding the unit conveyance amount N to the conveyance amount smaller than the fixed conveyance amount, the conveyance amount is largely changed, and a conveyance error is generated instead. Can be prevented.
[0083]
Further, as a fifth embodiment of the present invention, as in the above-described fourth embodiment, when the transport amount of the recording paper P is smaller than MINF, as in the second embodiment described above, the transport correction per the transport amount is performed. A recording paper P may be conveyed without adding the correction amount to the conveyance amount while adding the amount to the conveyance correction amount integrated value r. FIG. 14 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction amount s in the procedure of the recording paper transport control in the fifth embodiment.
[0084]
If the transport amount (x · N) of the recording paper P is smaller than MINF (Yes in step S101), the transport correction amount per the transport amount is added to the transport correction amount integrated value r (step S105), and the transport is performed. The recording paper P is transported by the amount (x · N) (step S106). As described above, when the transport amount of the recording paper P is less than the fixed transport amount, the transport correction amount is added to the transport correction amount integrated value r per the transport amount, but the transport amount is added to the integral quotient Q. Since the recording paper P is conveyed by the conveyance amount without adding the correction amount multiplied by the unit conveyance amount N, the conveyance amount of the recording paper P is constant regardless of the value of the conveyance correction amount integrated value r. When the amount is less than the amount, it is possible to prevent the conveyance amount from being significantly changed and the recording image quality from being significantly reduced.
[0085]
Further, as a sixth embodiment of the present invention, as in the above-described fourth embodiment, similar to the above-described third embodiment, the recording paper P is continuously recorded near the upper end and the lower end thereof with a transport amount smaller than MINF. Is performed, the recording is executed without integrating the transport correction amount per the transport amount into the transport correction amount integrated value r, and the recording in which the transport amount is smaller than the MINF and the recording in which the transport amount is equal to or more than the MINF are alternately performed. When the recording is performed with the conveyance amount smaller than MINF, the correction amount is not added to the conveyance amount while the conveyance correction amount per conveyance amount during the conveyance is added to the conveyance correction amount integrated value r. And a transfer amount obtained by multiplying the integral quotient Q by the unit transfer amount N from the transfer correction amount integrated value r. FIG. 15 is a flowchart showing a procedure for correcting the transport amount of the recording paper P based on the transport correction amount s in the sixth embodiment of the recording paper transport control according to the present invention.
[0086]
First, the transport amount (x · N) of the recording paper P is compared with MINF, and it is determined whether the transport amount (x · N) is smaller than MINF (step S111). If the transport amount (x · N) is equal to or larger than MINF (No in step S111), a value obtained by adding the transport correction amount integrated value r to the transport correction amount per the transport amount is divided by the unit transport amount N, and The integer quotient Q is calculated (step S112). Further, the remainder obtained by dividing the value obtained by adding the transport correction amount integrated value r to the transport correction amount per the transport amount by the unit transport amount N is set as the transport correction amount integrated value r, that is, the unit is calculated from the transport correction amount integrated value r. A correction amount obtained by multiplying the transport amount N by an integer quotient Q is subtracted (transport correction amount integrated value subtraction procedure) (step S113). Then, the recording paper P is transported by a transport amount obtained by adding a correction amount obtained by multiplying the unit transport amount N by an integer quotient Q to the transport amount (x · N) (transport amount correction procedure) (step S114).
[0087]
On the other hand, when the carry amount (x · N) is smaller than MINF (Yes in step S111), a so-called band print mode in which printing in which the carry amount is smaller than MINF and printing in which the carry amount is equal to or more than MINF are alternately performed. It is determined whether or not this is the case (step S115). If the mode is not the band recording mode (No in step S115), the conveyance correction amount per the conveyance amount is added to the conveyance correction amount integrated value r (step S116), and the recording paper P is calculated based on the conveyance amount (x · N). Is transported (step S117). In the case of the band recording mode (Yes in step S115), similarly to the case where the transport amount (x · N) is equal to or larger than MINF (No in step S111), the transport correction amount per transport amount is added to the transport correction amount integrated value. The value obtained by adding r is divided by the unit transport amount N to calculate the integer quotient Q (step S118). Further, the remainder obtained by dividing the value obtained by adding the transport correction amount integrated value r to the transport correction amount per the transport amount by the unit transport amount N is set as the transport correction amount integrated value r. That is, a correction amount obtained by multiplying the unit transport amount N by the integer quotient Q is subtracted from the transport correction amount integrated value r (transport correction amount integrated value subtraction procedure) (step S119). Then, the recording paper P is transported by the transport amount (xN) without adding the correction amount obtained by multiplying the unit transport amount N by the integer quotient Q to the transport amount (xN) (step S117). . Therefore, when the transport amount of the recording paper P is smaller than MINF, the transport amount is not corrected. Further, in the band recording mode, even if an integral quotient Q is obtained by dividing the transport correction amount integrated value r by the unit transport amount N, it is only necessary to subtract the corresponding correction amount from the transport correction amount integrated value r. The recording paper P is conveyed without adding a correction amount obtained by multiplying the integer quotient Q by the unit conveyance amount N to the conveyance amount.
[0088]
In other words, when recording is continuously performed near the upper end and the lower end of the recording sheet P with the conveyance amount of the recording sheet P being less than the predetermined conveyance amount (MINF) (when not in the band recording mode), the conveyance correction amount is set. The recording is executed without integrating the transport correction amount per the transport amount into the integrated value r. On the other hand, when recording in which the transport amount is less than the fixed transport amount and printing in which the transport amount is equal to or more than the constant transport amount are performed alternately (in the case of the band recording mode), the transport amount of the recording paper P is not corrected. Since there is no possibility that the transport amount is continued to be accumulated as it is, the recording is performed by integrating the transport correction amount per the transport amount into the transport correction amount integrated value r when performing the recording in which the transport amount of the recording paper P is less than MINF. I do. In this way, it is possible to perform recording more accurately and with less risk of deterioration of the recording image quality at the time of performing recording including transport of the recording paper P whose transport amount is less than MINF.
[0089]
The invention of the present application is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the invention of the present application. Needless to say.
[Brief description of the drawings]
FIG. 1 is a block diagram of an inkjet recording apparatus according to the present invention.
FIG. 2 is a plan view of an ink jet recording apparatus according to the present invention.
FIG. 3 is a side view of the ink jet recording apparatus according to the present invention.
FIG. 4 is a flowchart showing a procedure of an initial value process.
FIG. 5 is a flowchart showing a procedure for setting a correction value.
FIG. 6 is a flowchart illustrating a procedure for calculating a transport correction transport amount.
FIG. 7 is a flowchart illustrating a procedure for correcting a recording sheet conveyance amount.
FIG. 8 is a flowchart illustrating a procedure for correcting a transport amount of a recording sheet.
FIG. 9 is a flowchart illustrating a procedure for correcting a transport amount of a recording sheet.
FIG. 10 is a flowchart illustrating a procedure of an initial value process.
FIG. 11 is a flowchart showing a procedure for setting a correction value.
FIG. 12 is a flowchart illustrating a procedure for calculating a transport correction amount.
FIG. 13 is a flowchart illustrating a procedure for correcting the transport amount of a recording sheet.
FIG. 14 is a flowchart illustrating a procedure for correcting a transport amount of a recording sheet.
FIG. 15 is a flowchart illustrating a procedure for correcting a transport amount of a recording sheet.
[Explanation of symbols]
1 information processing device, 2 recording control unit, 50 ink jet recording device,
51 carriage guide shaft, 52 platen, 53 transport drive roller,
54 conveyance driven roller, 55 sheet discharge drive roller, 56 sheet discharge driven roller,
57 paper feed tray, 57b paper feed roller, 61 carriage,
62 recording head, 63 paper detector, X main scanning direction, Y sub scanning direction

Claims

A recording paper transport device is provided that brings the recording paper into close contact with the peripheral surface of a transport roller that is rotated by the rotational driving force of the rotational driving force source and that transports the recording paper in a predetermined direction by a predetermined transport amount by the rotation of the transport roller. In the recording apparatus, a recording paper transport amount correction control method for correcting an error in the transport amount of the recording paper,
The unit transport amount of the recording paper transport device is N,
The transport error amount per unit transport amount by the recording paper transport device is ADJM,
The transport error amount per unit transport amount according to the type of recording paper is ADJP,
Transport correction amount per unit transport amount s = ADJM + ADJP,
The conveyance amount of the recording paper before correction is xN,
The conveyance correction amount integrated value obtained by integrating the conveyance correction amount x · s per recording paper conveyance amount is represented by r,
The integer quotient obtained by dividing the transport correction amount integrated value r by the unit transport amount N is Q,
Conveyed amount of recording paper after correction = (x + Q) · N,
A recording paper conveyance amount correction control method, wherein a conveyance correction amount integrated value after correction = r−Q · N.

2. The printing apparatus according to claim 1, wherein the control unit obtains a transport error amount per unit transport amount ADJM and a transport error amount per unit transport amount ADJP depending on the type of recording paper from an external storage unit connected to the recording apparatus. And a recording paper transport amount correction control method.

3. The recording paper transport according to claim 1, further comprising a step of detecting a type of the recording paper from the recording paper and acquiring a transport error amount ADJP per unit transport amount according to the detected type of the recording paper. Amount correction control method.

2. The transport error amount per unit transport amount ADJM according to claim 1, wherein the transport error amount ADJM per unit transport amount by the recording paper transport device is obtained from a non-volatile storage medium mounted on the recording device. ADJP is obtained from an information processing apparatus connected to the recording apparatus so as to be able to transmit information.

In any one of claims 1 to 4, when the transport amount of the recording paper is less than a predetermined transport amount, the transport correction amount x · s per transport amount during the transport is added to the transport correction amount integrated value r. A recording paper conveyance amount correction control method characterized in that integration is not performed.

5. The method according to claim 1, wherein when the transport amount of the recording paper is less than a predetermined transport amount, the transport amount of the recording paper after correction = x · N, and the integrated transport correction amount after correction. = R.

5. The integrated transport correction amount value according to claim 1, wherein when the recording is continuously performed in a vicinity of an upper end and a lower end of the recording paper with the transport amount of the recording paper being less than a predetermined transport amount. The recording is performed without integrating the conveyance correction amount x · s per conveyance amount at the time of the conveyance in r, and the recording in which the conveyance amount of the recording paper is less than the predetermined conveyance amount and the recording amount in which the conveyance amount of the recording paper is the predetermined conveyance amount In the case where the above recording is alternately performed, when the recording paper transport amount is less than the predetermined transport amount, the transport correction amount integrated value r is set to the transport correction amount x · s per the transport amount during the transport. A recording paper conveyance amount after correction = x · N and a conveyance correction amount integrated value after correction = r.

A recording paper transport device is provided that brings the recording paper into close contact with the peripheral surface of a transport roller that is rotated by the rotational driving force of the rotational driving force source and that transports the recording paper in a predetermined direction by a predetermined transport amount by the rotation of the transport roller. In the recording apparatus, a recording paper transport amount correction control device that corrects the error of the transport amount of the recording paper,
The unit transport amount of the recording paper transport unit is N, the transport error amount per unit transport amount by the recording paper transport unit is ADJM, the transport error amount per unit transport amount by the type of recording paper is ADJP, and the transport correction amount s = AJM + ADJP, a conveyance correction amount calculating means;
Transport correction amount integrating means for integrating the transport correction amount x · s per transport amount of the recording paper to obtain a transport correction amount integrated value r;
The transport amount of the recording paper before correction is x · N, the quotient of an integer obtained by dividing the integrated transport correction amount r by the unit transport amount N is Q, and the transport amount of the corrected recording paper = (x + Q) · N Conveyance amount correction means,
A recording paper transport amount correction control device, comprising: a transport correction amount integrated value subtracting unit that sets the corrected transport correction amount integrated value = r−Q · N.

9. The printing apparatus according to claim 8, wherein a transport error amount per unit transport amount ADJM by the recording paper transport device and a transport error amount per unit transport amount ADJP by the type of recording paper are acquired from external storage means connected to the recording apparatus. A recording paper transport amount correction control device comprising:

10. The method according to claim 8, further comprising: means for detecting a type of the recording paper from the recording paper; and means for acquiring a transport error amount ADJP per unit transport amount based on the detected type of the recording paper. Recording paper conveyance amount correction control device.

9. The information processing device according to claim 8, wherein a transport error amount per unit transport amount ADJM by the recording paper transport device is acquired from a non-volatile storage medium mounted on the recording device, and the information is connected to the recording device so that information can be transmitted. A recording paper conveyance amount correction control device, comprising: a conveyance error amount acquisition unit that acquires a conveyance error amount ADJP per unit conveyance amount according to a type of recording paper from the apparatus.

12. The transport correction amount integrating unit according to claim 8, wherein the transport correction amount integrating unit adds the transport correction amount integrated value r to the transport correction amount when the transport amount of the recording paper is less than a predetermined transport amount. 13. Wherein the conveyance correction amount x · s is not integrated.

12. The printing apparatus according to claim 8, wherein when the transport amount of the recording paper is less than a predetermined transport amount, the transport amount correcting unit sets the transport amount of the corrected recording paper = x · N. The recording paper transport amount correction control device, wherein the transport correction amount integrated value subtracting means sets the corrected transport correction amount integrated value = r.

12. The recording medium according to claim 8, wherein the conveyance correction amount accumulating unit continuously performs recording with the conveyance amount of the recording paper continuously less than a predetermined conveyance amount near the upper end and the lower end of the recording paper. Does not add the transport correction amount x · s per transport amount during the transport to the transport correction amount integrated value r, and records when the transport amount of the recording paper is less than a certain transport amount and when the transport amount of the recording paper is When recording with a certain transport amount or more is performed alternately, when the recording paper transport amount is less than the certain transport amount, the transport correction amount integrated value r is added to the transport correction per transport amount during the transport. The amount x · s is integrated, and the conveyance amount correction unit alternately performs recording in which the conveyance amount of the recording paper is less than the predetermined conveyance amount and recording in which the conveyance amount of the recording paper is equal to or more than the predetermined conveyance amount. When the recording paper conveyance amount is smaller than the predetermined conveyance amount, the corrected conveyance amount of the recording paper = N, the conveyance correction amount integrated value subtracting means is used when the recording paper conveyance amount is smaller than the predetermined conveyance amount and the recording paper conveyance amount is equal to or more than the predetermined conveyance amount. A recording paper conveyance amount correction control device, wherein, when recording is performed in which the conveyance amount of the recording paper is less than a predetermined conveyance amount, the conveyance correction amount integrated value after correction = r.

A recording apparatus comprising the recording paper transport amount correction control device according to claim 8.

A recording paper transport device is provided that brings the recording paper into close contact with the peripheral surface of a transport roller that is rotated by the rotational driving force of the rotational driving force source and that transports the recording paper in a predetermined direction by a predetermined transport amount by the rotation of the transport roller. In the recording apparatus, a recording paper transport amount correction control program for causing a computer to execute control to correct the error of the transport amount of the recording paper,
The unit transport amount of the recording paper transport unit is N, the transport error amount per unit transport amount by the recording paper transport unit is ADJM, the transport error amount per unit transport amount by the type of recording paper is ADJP, and the transport correction amount s = ADJM + ADJP, the conveyance correction amount calculation procedure,
A conveyance correction amount integration procedure for integrating the conveyance correction amount x · s per recording paper conveyance amount to obtain a conveyance correction amount integrated value r;
The transport amount of the recording paper before correction is x · N, the quotient of an integer obtained by dividing the integrated transport correction amount r by the unit transport amount N is Q, and the transport amount of the corrected recording paper = (x + Q) · N Transport amount correction procedure,
A recording paper conveyance amount correction control program, comprising: a conveyance correction amount integrated value subtraction procedure for setting the corrected conveyance correction amount integrated value = r−Q · N.

17. The printing apparatus according to claim 16, wherein a transport error amount ADJM per unit transport amount by the recording paper transport device and a transport error amount ADJP per unit transport amount according to the type of the recording paper are acquired from an external storage unit connected to the recording device. A recording paper conveyance amount correction control program having a procedure.

18. The method according to claim 16, further comprising: a step of detecting a type of the recording sheet from the recording sheet; and a step of acquiring a transport error amount ADJP per unit transport amount according to the detected type of the recording sheet. Recording paper conveyance amount correction control program.

17. The information processing apparatus according to claim 16, wherein a transport error amount per unit transport amount ADJM by the recording paper transport apparatus is acquired from a nonvolatile storage medium mounted on the recording apparatus, and the information processing apparatus is connected to the recording apparatus so that information can be transmitted. A recording paper conveyance amount correction control program, comprising a step of acquiring a conveyance error amount ADJP per unit conveyance amount according to a type of recording paper from an apparatus.

20. The transport correction amount integrating procedure according to claim 16, wherein the transport correction amount integration value r is added to the transport correction amount integrated value r when the transport amount of the recording paper is less than a predetermined transport amount. A recording paper conveyance amount correction control program, which has a procedure of not integrating the conveyance correction amount x · s.

20. The transport amount correcting procedure according to claim 16, wherein, when the transport amount of the recording paper is smaller than a predetermined transport amount, the transport amount of the corrected recording paper = x · N. Wherein the transport correction amount integrated value subtraction step includes a step of setting the corrected transport correction amount integrated value = r when the transport amount of the recording paper is less than a predetermined transport amount. Recording paper conveyance amount correction control program.

20. The transport correction amount integrating procedure according to claim 16, wherein the recording paper is continuously recorded in a vicinity of an upper end and a lower end of the recording paper with the transport amount of the recording paper being less than a predetermined transport amount. The procedure for not integrating the transport correction amount x · s per transport amount during the transport to the transport correction amount integrated value r, recording when the transport amount of the recording paper is less than a certain transport amount, and When the recording is performed alternately with the recording amount equal to or more than the predetermined conveyance amount, when the recording paper conveyance amount is smaller than the predetermined conveyance amount, the conveyance correction amount integrated value r indicates the conveyance per conveyance amount during the conveyance. A step of integrating the correction amount x · s, wherein the conveyance amount correction procedure includes recording in which the conveyance amount of the recording paper is less than a predetermined conveyance amount, and recording in which the conveyance amount of the recording paper is equal to or more than the predetermined conveyance amount. Are performed alternately, when the recording paper conveyance amount is smaller than a certain conveyance amount, There is a procedure in which the conveyance amount of the recording paper after the time is equal to x · N. The procedure of subtracting the conveyance correction amount integrated value subtraction includes a recording in which the conveyance amount of the recording paper is less than a certain conveyance amount, and In the case where recording with a fixed transport amount or more is performed alternately, a procedure for setting the integrated transport correction amount after correction = r at the time of printing when the transport amount of the recording paper is smaller than the constant transport amount is provided. A recording paper conveyance amount correction control program characterized by the following.