JP2004077746A - Copying machine and double-sided copying/printing method - Google Patents

Copying machine and double-sided copying/printing method Download PDF

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JP2004077746A
JP2004077746A JP2002237350A JP2002237350A JP2004077746A JP 2004077746 A JP2004077746 A JP 2004077746A JP 2002237350 A JP2002237350 A JP 2002237350A JP 2002237350 A JP2002237350 A JP 2002237350A JP 2004077746 A JP2004077746 A JP 2004077746A
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printing
sided
pages
odd
numbered
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JP2002237350A
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Japanese (ja)
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Masahito Amano
天野 雅人
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Ricoh Co Ltd
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Ricoh Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-sided copying/printing method for a copying machine, which eliminates the need for an automatic double-sided printing means and changes in order of documents and prevents ununiformity between pages. <P>SOLUTION: When printing on both sides after taking an even number of single-sided documents from the final page in order, the copying machine first reads documents on odd pages in order and prints the odd pages on the first sides of printing sheets. Then the copying machine reads documents on even pages in order and prints the even pages on the second sides of the printing sheets, thereby printing on the both sides. The copying machine has a control section 14. The control section 14 controls such that upon the selection of a first button 12 for instructing to perform double-sided printing of one-sided documents, a second button 13 for indicating that the number of documents is odd, or the first and second buttons 12 and 13 for instructing to perform double-sided printing of an odd number of single-sided documents, the contents of a setting for double-sided printing of an even number of documents is automatically reversed in a document skip setting. After printing on the first sides is completed, the first one printing sheet is conveyed without printing when printed on the second sides. Even pages read are printed in order from the second printing sheet. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、片面の原稿から複数ページの画像を読み取ってその画像の両面印刷をおこなうことができる複写機の両面複写印刷方法に関する。
【0002】
【従来の技術】
現在、自然環境に対する配慮から紙文書を電子文書化する流れがあるが、それでも現状はまだまだ紙文書の廃絶には至らない。そのため、少なくとも紙文書の総量削減をおこなっていこうという流れがある。この紙文書の総量削減を実現する手段として、両面複写印刷の実施が有効であるのは明白である。
この両面複写印刷については、印刷用紙を裏返しにするための両面印刷トレーと、原稿を裏返しにするための両面印刷対応ADF(自動原稿給送装置)とを搭載した両面印刷複写機が既に製品化されている。ところが、この便利な複写機は複雑な紙搬送をおこなうので、開発コストおよび製造コストが大きくなってしまう。したがって、両面複写印刷を安価に実現するために、なんとか前記した自動両面印刷機能を使わずに実現できる複写機が待望されている。
【0003】
【発明が解決しようとする課題】
そこで考えられる方法は、印刷用紙の片面をまとめて一気に印刷し、排紙された印刷用紙をまとめ、手作業で給紙トレーに再セットし、もう一方の面の印刷をおこなうことである。しかしながら、この方法では、片面原稿の両面印刷(片面原稿2枚を印刷用紙の表裏に印刷する)をする際にまず原稿を奇数ページと偶数ページに分けてから印刷用紙の片面ずつまとめて印刷する必要があるので、原稿の元々の並びを変えてしまうことになり、手作業の量が非常に多くなる上、作業の正確性が著しく落ちてしまう。
本発明の目的は、このような従来技術の問題を解決することにあり、具体的には、ADFにセットされた片面原稿を2枚1組にして取り込み、その内の1枚だけをスキャン読み取りして片面印刷し、残る1枚の原稿はスキャン読み取りせずに空搬送することにより、自動両面印刷手段の搭載を不要にするだけでなく、原稿の元々の並びも変えなくてよく、且つページずれも発生しない複写機の両面複写印刷方法などを提供することにある。
【0004】
【課題を解決するための手段】
前記の課題を解決するために、請求項1記載の発明では、片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従い偶数ページを飛ばして奇数ページのみ順に読み取ってその奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページを前記印刷用紙の第2面に印刷することにより印刷用紙の両面に印刷することができる複写機において、片面原稿の両面印刷であることを指示する第1のボタンと、奇数枚原稿であることを指示する第2のボタンと、前記第1および第2のボタンにより片面原稿の両面印刷であり且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷時、前記原稿飛ばし設定を自動的に偶数枚原稿の両面印刷時の設定内容とは逆にするとともに、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目を印刷処理なしに空搬送・排紙させ、その印刷用紙の2枚目から、読み取られた偶数ページを順に印刷させる制御手段とを備えた。
また、請求項2記載の発明では、片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従って偶数ページを飛ばして奇数ページのみ順に読み取り、その奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷方法において、片面原稿の両面印刷であり、且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷実行時、前記原稿飛ばし設定を自動的に偶数枚原稿の両面印刷時の設定内容と逆にする構成にした。
【0005】
また、請求項3記載の発明では、請求項2記載の発明において、前記奇数枚片面原稿の両面印刷実行時、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目を印刷処理なしに空搬送して排紙し、その印刷用紙の2枚目から、読み取られた偶数ページを順に印刷する構成にした。
また、請求項4記載の発明では、請求項2または請求項3記載の発明において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙し、第2面印刷時には前記ソーターへ排紙する構成にした。
また、請求項5記載の発明では、片面原稿を先頭ページまたは最終ページから順に取り込んで両面印刷をおこなう際、まず、奇数ページまたは偶数ページのみ順に読み取り、読み取ったページを読み取り順に印刷用紙の第1面に印刷し、次に、読み飛ばしたページのみ順に読み取ってそのページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷方法において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙し、第2面印刷時には前記ソーターへ排紙する構成にした。
【0006】
【発明の実施の形態】
以下、図面により本発明の実施の形態を詳細に説明する。
図20は本発明が実施される複写機要部の一例を示す構成図である。このような構成で、この複写機では、画像形成時、まず、帯電器2が感光体1の表面をマイナスに帯電させる。続いて、画像情報に従って強度変調され、光走査光学系3により走査された光束によって感光体1上に静電潜像を形成する。感光体1の光束の当たった場所は導電性を発現し、表面のマイナス電荷が感光体1の基材を経てアースへ逃げ、その部分のマイナス電位が低下して静電潜像が形成されるのである。
次に、現像器4によりマイナスの電気を帯びたトナーが潜像部に近づけられると、潜像部にトナーが移行する。さらに、潜像部に移行したトナーは転写用帯電器5により印刷用紙Pに移行する。そして、定着器6によって印刷用紙上のトナーが印刷用紙Pに固着する。
【0007】
以下、本発明の第1の実施例について説明する。
図1に、前記した印刷用紙の流れの一例を示す。図示したように、給紙トレー7から給送された印刷用紙Pは感光体1に接する位置を通過し、このとき、前記したようにトナー像が固着し、定着がおこなわれ、排紙トレー8に排出される。このような複写機を用いて、本発明の第1の実施例の複写機では、複数枚の片面原稿をADF(自動原稿給送装置)により自動的に給送し、両面印刷をおこなうものであるが、自動両面印刷手段は持たない。なお、この実施例では、請求項1記載の制御手段はプログラムを記憶しておくメモリ、そのプログラムに従って動作するCPUなどにより実現される。
このような構成で片面原稿から両面印刷を実現する場合、複写機に搭載されるADFの仕様(先頭ページから取り込むか、最終ページから取り込むか)と印刷用紙の搬送パターンとの組合せにより、以下に示す4つの構成▲1▼〜▲4▼でしか容易に実現することは不可能である。言い換えれば、この構成以外では原稿の並び替えなどの煩雑な作業が必要となってくる。
【0008】
以下、図1〜図9により、構成▲1▼〜▲4▼について、まず、原稿枚数が偶数枚の場合で説明する。
構成▲1▼(図2および図5参照)
この構成は、搬送パターンが、図1に示した搬送パターン1か、図4に示した搬送パターン2である。なお、搬送パターン1とは印刷用紙を給紙トレー7から供給する搬送パターンであり、搬送パターン2とは、印刷用紙を手差し給紙トレー9から供給し、且つ給紙の際、手差し給紙トレー9に積載された印刷用紙中の下側から印刷用紙を取り込む搬送パターンである。
また、装置本体上面に配置した図示しないコンタクトガラス上に配置された自動原稿給紙装置ADF(図示していない)では、原稿給紙台上にセットされた原稿束のうちの最終ページから取り込み、後のページから奇数ページだけを順に読み取って読み取り順に奇数面を印刷用紙に印刷した後、同じ原稿束を再び最終ページから取り込み、偶数ページだけを順に読み取って読み取り順に偶数面を印刷用紙に印刷する(図2および図5参照)。なお、ADFにセットされた片面原稿のうち、奇数面印刷時は偶数ページを読み取らずに飛ばし(空搬送し)、偶数面印刷時は奇数ページを読み取らずに飛ばす。つまり、原稿飛ばし設定は第1ステップ(第1面印刷)の奇数面印刷時は先飛ばし(ペアとなる2枚の原稿のうち先に取り込んだページ(この場合は偶数ページ)を飛ばすモード)で(図10参照)、第2ステップ(第2面印刷)の偶数面印刷時は後飛ばし(ペアとなる2枚の原稿のうち後から取り込んだページ(この場合は奇数ページ)を飛ばすモード)である(図11参照)。
【0009】
以下、他の構成については次の通りである。
構成▲2▼(図3および図6参照)
搬送パターン :1、2(図1および図4参照)
ADF    :原稿先頭ページからの取り込み
手差し給紙  :下から取り込み
印刷順序   :偶数面印刷の後、奇数面印刷
原稿飛ばし設定:先飛ばし→後飛ばし
構成▲3▼(図8参照)
搬送パターン :3(図7参照)
ADF    :原稿先頭ページからの取り込み
手差し給紙  :上から取り込み
印刷順序   :奇数面印刷の後、偶数面印刷
原稿飛ばし設定:後飛ばし→先飛ばし
構成▲4▼(図9参照)
搬送パターン :3(図7参照)
ADF    :原稿最終ページからの取り込み
手差し給紙  :上から取り込み
印刷順序   :偶数面印刷の後、奇数面印刷
原稿飛ばし設定:後飛ばし→先飛ばし
以上、原稿が偶数枚(6枚)であるという前提で説明してきたが、実際には奇数枚原稿の場合もあり、その場合、例えば構成▲1▼や構成▲4▼などについてはページずれが発生する。以下、構成▲1▼の場合についてページずれの発生とその解決策について説明する。
【0010】
この構成では原稿飛ばし設定が「第1面印刷時(第1ステップ印刷時):先飛ばし→第2面印刷時(第2ステップ印刷時):後飛ばし」となっているが、ADFの原稿取り込み仕様が「最終ページから」となっているので、原稿が奇数枚の場合は第1面に偶数面が印刷されてしまう(図12参照)。構成▲1▼では印刷順序が「第1面印刷:奇数面→第2面印刷:偶数面」とならねばいけないので、最終的に印刷仕上がりにページずれが発生してしまう(図13参照)。
そこで、この実施例では、構成▲1▼の複写機の場合、「片面原稿の両面印刷」および「奇数枚原稿」を夫々指示(選択)する第1ボタン及び第2ボタンを搭載し、これらのボタンにより「片面原稿の両面印刷」および「奇数枚原稿」を指示した場合には原稿飛ばし設定を「後飛ばし→先飛ばし」に自動的に変更する。
図17に、この実施例の複写機の操作・制御系要部の構成ブロック図を示す。図示したように、操作部11内に片面原稿の両面印刷であることを指示する第1のボタン12と、奇数枚原稿であることを指示する第2のボタン13とを備え、図17に示した制御部14は、第1および第2のボタンにより片面原稿の両面印刷であり且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷時、原稿飛ばし設定を自動的に偶数枚原稿の両面印刷時の設定内容とは逆にするとともに、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目を印刷処理なしに空搬送・排紙させ、その印刷用紙の2枚目から、読み取られた偶数ページを順に印刷させるのである。制御部14内のCPU15がボタン12、13からの信号を検出し、プログラムに従って指示に応じてスキャナ16による原稿読み取りを制御するのである。
この場合の印刷状況を図14および図15に示す。図15に示したように、これだけでは図13と同様のページずれが発生してしまう。そこで、本発明では図16に示すように第2面印刷時に、最初の1枚目印刷が始まる前に印刷用紙(第1面に5頁目の原稿内容が印刷済み)を1枚だけ空搬送し、排紙トレーに吐き出す。その後は、順次3頁目の第2面に4頁を、1頁目の第2面に2頁を夫々印刷する。
こうして、この実施例によれば、ページずれを回避することが可能となる(図16参照)。
【0011】
本発明の第2の実施例の複写機では、ここまで説明してきた第1の実施例の複写機にソーターを接続し、片面原稿の両面印刷を複数部のソート排紙設定で実行する。以下、代表して、前記した構成▲1▼で3部印刷をおこなう場合で説明する。通常の動作では、片面原稿の両面印刷をおこなう際には、第1面(この場合は奇数面)印刷を終了した印刷用紙はソーターの個別トレーに1部ずつ振り分け排紙される。そして、第1面の印刷が終了したところで、第2面(この場合は偶数面)印刷に向けてソーターの個別トレーから1部ずつ取り出し、まとめた上で給紙トレーに再セットする。続いて第2面印刷をおこなうわけであるが、印刷仕上がりにはページずれが発生する。例えば原稿が6枚の場合、第2面(偶数面)印刷時、図18の中ほどに示したように再セットされるが、例えば6ページ目3部は5、3、1ページの反対面に印刷され、ソーターのそれぞれの個別トレーに排紙されるので、図18の下方に示したようにページがずれてしまうのである。
そこで、この実施例では、第1面印刷時にはスタック排紙とし、第2面印刷時にソート排紙とする。
こうして、本発明の第2の実施例によれば、第1面印刷後に印刷用紙をまとめる必要もなくなるし、ページずれも起きない(図19参照)。なお、第2の実施例に示した両面複写印刷方法の適用範囲は構成▲1▼だけに制限されない。片面原稿を先頭ページまたは最終ページから順に取り込んで両面印刷をおこなう際、まず、奇数ページまたは偶数ページのみ順に読み取り、読み取ったページを読み取り順に印刷用紙の第1面に印刷し、次に、読み飛ばしたページのみ順に読み取ってそのページを前記印刷用紙の第2面に印刷する各構成の複写機の両面複写印刷に同様にして実施することができる。
【0012】
【発明の効果】
以上説明したように、請求項1記載の発明では、片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従い偶数ページを飛ばして奇数ページのみ順に読み取ってその奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページをその印刷用紙の第2面に印刷することにより印刷用紙の両面に印刷する構成の複写機において、片面原稿の両面印刷であり且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷時には、原稿飛ばし設定が自動的に偶数枚原稿の両面印刷時の設定内容とは逆にされ、且つ第1面印刷終了後、印刷用紙の第2面印刷時に、印刷用紙の先頭1枚目が印刷処理なしに空搬送・排紙され、その印刷用紙の2枚目から、読み取られた偶数ページが順に印刷されるので、前記した構成の複写機の両面複写印刷において、原稿の元々の並びも変えなくてよく、且つページずれも発生しない。
また、請求項2記載の発明では、片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従って偶数ページを飛ばして奇数ページのみ順に読み取り、その奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷の際、片面原稿の両面印刷であり、且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷実行時、原稿飛ばし設定が自動的に偶数枚原稿の両面印刷時の設定内容と逆にされるので、前記した構成の複写機の両面複写印刷において、原稿の元々の並びも変えなくてよく、且つページずれも発生しないようにできる。
また、請求項3記載の発明では、請求項2記載の発明において、奇数枚片面原稿の両面印刷実行時、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目が印刷処理なしに空搬送・排紙され、その印刷用紙の2枚目から、読み取られた偶数ページが順に印刷されるので、請求項1記載の発明と同様の効果を得ることができる。
また、請求項4記載の発明では、請求項2または請求項3記載の発明において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙され、第2面印刷時にはソーターへ排紙されるので、ソーターを接続して複数部印刷を実行する場合でもページずれの発生を防げる。
また、請求項5記載の発明では、片面原稿を先頭ページまたは最終ページから順に取り込んで両面印刷をおこなう際、まず、奇数ページまたは偶数ページのみ順に読み取り、読み取ったページを読み取り順に印刷用紙の第1面に印刷し、次に、読み飛ばしたページのみ順に読み取ってそのページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙され、第2面印刷時にはソーターへ排紙されるので、そのような複写機の両面複写印刷の際にソーターを接続して複数部印刷を実行する場合でもページずれの発生を防げる。
【図面の簡単な説明】
【図1】本発明の第1の実施例を示す複写機要部の説明図である。
【図2】本発明の第1の実施例を示す両面複写印刷方法の説明図である。
【図3】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図4】本発明の第1の実施例を示す複写機要部の他の説明図である。
【図5】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図6】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図7】本発明の第1の実施例を示す複写機要部の他の説明図である。
【図8】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図9】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図10】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図11】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図12】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図13】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図14】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図15】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図16】本発明の第1の実施例を示す両面複写印刷方法の他の説明図である。
【図17】本発明の第1の実施例を示す複写機要部の構成ブロック図である。
【図18】本発明の第2の実施例を示す両面複写印刷方法の説明図である。
【図19】本発明の第2の実施例を示す両面複写印刷方法の他の説明図である。
【図20】本発明が実施される複写機要部の構成図である。
【符号の説明】
1 感光体
7 給紙トレー
8 排紙トレー
9 手差し給紙トレー
10 排紙トレー
11 操作部
12 第1ボタン
13 第2ボタン
14 制御部
15 スキャナ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a double-sided copy printing method for a copier capable of reading images of a plurality of pages from a single-sided document and performing double-sided printing of the images.
[0002]
[Prior art]
At present, there is a trend to convert paper documents into electronic documents due to consideration for the natural environment. However, the current situation still does not lead to the elimination of paper documents. Therefore, there is a flow of at least reducing the total amount of paper documents. It is clear that double-sided copy printing is effective as a means for reducing the total amount of paper documents.
For this duplex printing, a duplex printing machine equipped with a double-sided printing tray for turning over printing paper and an ADF (automatic document feeder) for double-sided printing for turning over documents has already been commercialized. Have been. However, since this convenient copying machine carries out complicated paper conveyance, development costs and manufacturing costs are increased. Therefore, in order to realize double-sided copying at low cost, there is a long-awaited need for a copying machine that can be realized without using the automatic double-sided printing function.
[0003]
[Problems to be solved by the invention]
Therefore, a possible method is to print one side of the printing paper all at once, collect the discharged printing paper, manually reset it on the paper feed tray, and print the other side. However, in this method, when performing double-sided printing of a single-sided original (two single-sided originals are printed on the front and back of a printing sheet), the original is first divided into odd pages and even-numbered pages, and then printed on one side of the printing sheet at a time. Because of the necessity, the original arrangement of the originals is changed, so that the amount of manual work becomes extremely large and the accuracy of the work is significantly reduced.
SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the related art. Specifically, a single-sided original set on an ADF is taken as a set of two sheets, and only one of them is scanned and read. One-sided printing is performed, and the remaining one original is conveyed without scanning and reading. This not only eliminates the need for the automatic double-sided printing means, but also eliminates the need to change the original arrangement of the originals. It is an object of the present invention to provide a double-sided copy printing method for a copying machine that does not cause a shift.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, according to the first aspect of the invention, when a single-sided original is taken in order from the last page and two-sided printing is performed, if the original is an even number, first, the even-numbered page is skipped according to the original skip setting. By reading only the odd pages in order and printing the odd pages on the first side of the printing paper, then skipping the odd pages and reading only the even pages in order and printing the even pages on the second side of the printing paper In a copying machine capable of printing on both sides of a printing sheet, a first button for designating double-sided printing of a single-sided document, a second button for designating an odd-numbered document, In the case of double-sided printing of an odd-numbered single-sided original, which is indicated by the second button for double-sided printing of a single-sided original and an odd-numbered original, the original skip setting is automatically set to the even-numbered original. After the printing on the first side is completed, the first sheet of the printing paper is empty-conveyed and discharged without printing processing after the printing on the second side, and the printing is performed. Control means for sequentially printing even-numbered pages read from the second sheet of paper.
According to the second aspect of the present invention, when a single-sided original is fetched in order from the last page and double-sided printing is performed, if the original is an even number, first, even-numbered pages are skipped according to the original skipping setting, and only odd-numbered pages are read in order. A two-sided copy printing method for a copier that prints odd-numbered pages on a first side of printing paper, skips odd-numbered pages, reads only even-numbered pages in order, and prints the even-numbered pages on the second side of the printing paper. When performing double-sided printing of an odd-numbered single-sided original that is indicated as an odd-numbered original, which is a double-sided printing of a single-sided original, the skipping setting of the original is automatically reversed to the setting content of the even-numbered original. Configuration.
[0005]
According to a third aspect of the present invention, in the invention according to the second aspect, when the odd-numbered single-sided original is printed on both sides, after the first-side printing is completed, and when the first side of the printing paper is printed on the second-side printing, the first sheet of the printing paper is printed. The eye is conveyed empty without printing and discharged, and the read even pages are sequentially printed from the second sheet of the printing paper.
According to a fourth aspect of the present invention, in the second or third aspect of the present invention, when a plurality of copies are executed by connecting a sorter, the sheets are discharged to the stack at the time of the first-side printing, and the second-side printing is performed. At times, the sheet is discharged to the sorter.
According to the fifth aspect of the present invention, when a single-sided original is fetched in order from the first page or the last page and two-sided printing is performed, first, only odd-numbered pages or even-numbered pages are read in order, and the read pages are read in the first order on the printing paper in the reading order. When printing a plurality of copies by connecting a sorter in a double-sided copy printing method of a copier that prints on the second side of the printing paper by sequentially reading only the skipped pages and printing the pages on the second side of the printing paper When printing the first side, the sheet is discharged to the stack, and when printing the second side, the sheet is discharged to the sorter.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 20 is a configuration diagram showing an example of a main part of a copying machine in which the present invention is implemented. With such a configuration, in this copying machine, at the time of forming an image, first, the charger 2 charges the surface of the photoconductor 1 negatively. Subsequently, the intensity is modulated according to the image information, and an electrostatic latent image is formed on the photoconductor 1 by the light beam scanned by the optical scanning optical system 3. The portion of the photoreceptor 1 where the light beam strikes exhibits conductivity, the negative charges on the surface escape to the ground via the base material of the photoreceptor 1, and the negative potential at that portion is reduced to form an electrostatic latent image. It is.
Next, when the negatively charged toner is brought closer to the latent image portion by the developing device 4, the toner moves to the latent image portion. Further, the toner transferred to the latent image portion is transferred to the printing paper P by the transfer charger 5. Then, the toner on the printing paper is fixed to the printing paper P by the fixing device 6.
[0007]
Hereinafter, a first embodiment of the present invention will be described.
FIG. 1 shows an example of the flow of the printing paper described above. As shown in the drawing, the printing paper P fed from the paper feeding tray 7 passes through a position in contact with the photoreceptor 1, and at this time, the toner image is fixed and fixed as described above, and Is discharged. Using such a copying machine, the copying machine according to the first embodiment of the present invention automatically feeds a plurality of single-sided documents by an ADF (automatic document feeder) and performs duplex printing. There is no automatic duplex printing means. In this embodiment, the control means is realized by a memory for storing a program, a CPU operating according to the program, and the like.
When realizing double-sided printing from a single-sided original with such a configuration, the combination of the specifications of the ADF mounted on the copier (whether to load from the first page or from the last page) and the transport pattern of the printing paper are as follows. It is impossible to easily realize only with the four configurations (1) to (4) shown. In other words, other than this configuration, complicated operations such as rearranging the originals are required.
[0008]
Hereinafter, the configurations (1) to (4) will be described first with reference to FIGS. 1 to 9 in the case where the number of documents is an even number.
Configuration (1) (see FIGS. 2 and 5)
In this configuration, the transport pattern is the transport pattern 1 shown in FIG. 1 or the transport pattern 2 shown in FIG. The transport pattern 1 is a transport pattern for supplying print paper from the paper feed tray 7, and the transport pattern 2 is a print pattern for supplying print paper from the manual paper feed tray 9 and, 9 is a conveyance pattern for taking in the printing paper from the lower side of the printing paper loaded in No. 9;
In an automatic document feeder ADF (not shown) arranged on a contact glass (not shown) arranged on the upper surface of the apparatus main body, the document is taken in from the last page of the document bundle set on the document feeder. After reading only the odd pages in order from the subsequent pages and printing the odd pages on the printing paper in the reading order, take in the same original bundle again from the last page, read only the even pages in order and print the even pages on the printing paper in the reading order (See FIGS. 2 and 5). In the single-sided document set in the ADF, the odd-numbered pages are skipped without reading (empty conveyance) during odd-side printing, and the odd-numbered pages are skipped without reading during even-side printing. In other words, the skipping setting of the original is set to skip ahead at the time of odd-number side printing in the first step (first side printing) (a mode of skipping a page (an even number page in this case) taken in first of two pairs of documents). (See FIG. 10). In the second step (second side printing), even-side printing is skipped (a mode for skipping a page (odd page in this case) fetched from the rear of two pairs of originals). (See FIG. 11).
[0009]
Hereinafter, other configurations are as follows.
Configuration (2) (see FIGS. 3 and 6)
Transport pattern: 1, 2 (see FIGS. 1 and 4)
ADF: Importing from the first page of the original, manual feed: Importing from the bottom, printing order: Odd-sided original printing after even-sided printing Original skipping setting: First skip → Rear skip configuration (3) (see FIG. 8)
Transport pattern: 3 (see FIG. 7)
ADF: Importing from the first page of the original manual feeding: Importing from the top Printing order: After printing odd-numbered pages, skip even-numbered originals Setting: Rearward skipping → First skipping configuration (4) (see FIG. 9)
Transport pattern: 3 (see FIG. 7)
ADF: Import from the last page of the original manual feed: Import from the top and print order: After printing even-numbered pages, skip odd-numbered originals Setting: Skip afterward → Skip ahead More than the original document is assumed to be an even number (6 sheets) As described above, there are cases where an odd number of originals are actually present, in which case, for example, a page shift occurs in the configuration (1) or the configuration (4). The following describes the occurrence of page misalignment and its solution for the case of the configuration (1).
[0010]
In this configuration, the document skip setting is “when printing on the first side (during the first step printing): skipping first → when printing on the second side (during the second step printing): skipping after”, Since the specification is “from the last page”, even-numbered pages are printed on the first side when the number of originals is odd (see FIG. 12). In the configuration (1), the printing order must be “first side printing: odd numbered side → second side printing: even numbered side”, and finally a page shift occurs in the print finish (see FIG. 13).
Therefore, in this embodiment, in the case of the copier having the configuration (1), a first button and a second button for designating (selecting) "single-sided printing of one-sided original" and "odd-numbered original" are provided. When "double-sided printing of single-sided document" and "odd-numbered document" are designated by the buttons, the document skip setting is automatically changed from "skip afterward to skip ahead".
FIG. 17 is a block diagram showing the configuration of the main part of the operation / control system of the copying machine according to this embodiment. As shown, a first button 12 for instructing double-sided printing of a single-sided document and a second button 13 for instructing an odd-numbered document are provided in the operation unit 11. The control unit 14 automatically sets the document skipping setting for even-numbered single-sided originals when the first and second buttons are used to perform double-sided printing of single-sided originals and for double-sided printing of odd-numbered single-sided originals. After the printing on the first side is completed, the first sheet of the printing paper is empty-conveyed and discharged without printing when printing on the second side of the printing paper. The read even-numbered pages are printed sequentially from the second print sheet. The CPU 15 in the control unit 14 detects signals from the buttons 12 and 13 and controls reading of the original by the scanner 16 according to an instruction according to a program.
The printing situation in this case is shown in FIGS. As shown in FIG. 15, this alone causes a page shift similar to that in FIG. Therefore, in the present invention, as shown in FIG. 16, at the time of printing on the second side, before printing of the first sheet starts, only one sheet of printing paper (the document content of the fifth page has been printed on the first side) is idle-conveyed. And then spit it out to the output tray. Thereafter, four pages are printed on the second surface of the third page, and two pages are printed on the second surface of the first page.
Thus, according to this embodiment, it is possible to avoid a page shift (see FIG. 16).
[0011]
In the copying machine according to the second embodiment of the present invention, a sorter is connected to the copying machine according to the first embodiment described above, and double-sided printing of a single-sided document is executed by setting a plurality of sets of sheet discharge. Hereinafter, a case where three copies are printed with the above configuration (1) will be described as a representative. In a normal operation, when performing double-sided printing of a single-sided document, the printing paper, for which printing on the first side (in this case, an odd-numbered side) has been completed, is sorted and discharged to an individual tray of a sorter. When printing on the first side is completed, one copy is taken out of the individual tray of the sorter for printing on the second side (in this case, even-numbered side), collected, and then set again on the sheet feeding tray. Subsequently, the second side printing is performed, but a page shift occurs in the print finish. For example, if there are six originals, when printing the second side (even side), the original is reset as shown in the middle of FIG. Is printed on each individual tray of the sorter, and the pages are shifted as shown in the lower part of FIG.
Therefore, in this embodiment, stack discharge is performed when printing the first side, and sort discharge is performed when printing the second side.
Thus, according to the second embodiment of the present invention, it is not necessary to combine printing papers after printing on the first side, and no page shift occurs (see FIG. 19). The application range of the double-sided copy printing method shown in the second embodiment is not limited to the configuration (1). When reading a single-sided original in order from the first page or the last page and performing double-sided printing, first read only the odd-numbered pages or even-numbered pages, print the read pages on the first side of the printing paper in the reading order, and then skip In this case, it is possible to perform double-sided copy printing in a copier of each configuration in which only the read pages are sequentially read and the pages are printed on the second side of the printing paper.
[0012]
【The invention's effect】
As described above, according to the first aspect of the present invention, when a single-sided original is fetched sequentially from the last page and two-sided printing is performed, if the original is an even number, first the even-numbered page is skipped according to the original skip setting and only the odd-numbered page is skipped. The odd pages are read in order and printed on the first side of the printing paper, then the odd pages are skipped and only the even pages are read in order and the even pages are printed on the second side of the printing paper to print the printing paper. In a copier configured to print on both sides, when skipping both sides of a single-sided original and printing on both sides of an odd-numbered single-sided document indicated to be an odd-numbered document, the skipping setting is automatically set to double-sided printing of an even-numbered original. After the printing on the first side is completed, the first sheet of the printing paper is conveyed and ejected without printing processing when printing on the second side of the printing paper after the printing on the first side is completed. From the second sheet, since the read even pages are printed in sequence, the duplex copying printing copier configurations described above may not also changed the arrangement of the original document, and a page shift is not generated.
According to the second aspect of the present invention, when a single-sided original is fetched in order from the last page and double-sided printing is performed, if the original is an even number, first, even-numbered pages are skipped according to the original skipping setting, and only odd-numbered pages are read in order. At the time of double-sided copy printing of a copier that prints odd pages on the first side of printing paper, then skips odd pages and reads only even pages in order, and prints the even pages on the second side of the printing paper, When performing double-sided printing of an odd-numbered single-sided original that is indicated as an odd-numbered original while both-sided printing of a single-sided original is performed, the skipping setting of the original is automatically reversed from the setting content of the even-numbered original. Therefore, in the double-sided copy printing of the copying machine having the above-described configuration, the original arrangement of the originals does not need to be changed, and page misalignment can be prevented.
According to a third aspect of the present invention, in the invention of the second aspect, the first first sheet of the printing paper is printed at the time of executing the double-sided printing of the odd-numbered single-sided document, after the completion of the first-side printing, and at the time of the second-side printing of the printing paper. Are conveyed / discharged without printing, and the read even-numbered pages are printed in order from the second sheet of printing paper, so that the same effect as the first aspect of the invention can be obtained.
According to a fourth aspect of the present invention, in the second or third aspect of the present invention, when a plurality of copies are executed by connecting a sorter, the sheets are discharged to the stack at the time of the first-side printing, and the second-side printing is performed. Since the sheet is sometimes discharged to the sorter, it is possible to prevent the occurrence of page misalignment even when the sorter is connected and printing of a plurality of copies is executed.
According to the fifth aspect of the present invention, when a single-sided original is fetched in order from the first page or the last page and two-sided printing is performed, first, only odd-numbered pages or even-numbered pages are read in order, and the read pages are read in the first order on the printing paper in the reading order. When printing a plurality of pages by connecting a sorter in double-sided copy printing of a copying machine that prints on the second side of the printing paper by reading only the skipped pages in order and printing the pages on the second side of the printing paper, When the first side is printed, the sheet is discharged to the stack, and when the second side is printed, the sheet is discharged to a sorter. The occurrence of displacement can be prevented.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a main part of a copying machine showing a first embodiment of the present invention.
FIG. 2 is an explanatory diagram of a duplex copy printing method according to the first embodiment of the present invention.
FIG. 3 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 4 is another explanatory view of a main part of the copying machine showing the first embodiment of the present invention.
FIG. 5 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 6 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 7 is another explanatory diagram of a main part of the copying machine showing the first embodiment of the present invention.
FIG. 8 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 9 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 10 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 11 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 12 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 13 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 14 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 15 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 16 is another explanatory diagram of the double-sided copy printing method according to the first embodiment of the present invention.
FIG. 17 is a configuration block diagram of a main part of a copying machine showing a first embodiment of the present invention.
FIG. 18 is an explanatory diagram of a two-sided copy printing method according to a second embodiment of the present invention.
FIG. 19 is another explanatory diagram of the double-sided copy printing method according to the second embodiment of the present invention.
FIG. 20 is a configuration diagram of a main part of a copying machine in which the present invention is implemented.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 photoconductor 7 paper feed tray 8 paper discharge tray 9 manual paper feed tray 10 paper discharge tray 11 operation unit 12 first button 13 second button 14 control unit 15 scanner

Claims (5)

片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従い偶数ページを飛ばして奇数ページのみ順に読み取ってその奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページを前記印刷用紙の第2面に印刷することにより印刷用紙の両面に印刷することができる複写機において、片面原稿の両面印刷であることを指示する第1のボタンと、奇数枚原稿であることを指示する第2のボタンと、前記第1および第2のボタンにより片面原稿の両面印刷であり且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷時、前記原稿飛ばし設定を自動的に偶数枚原稿の両面印刷時の設定内容とは逆にするとともに、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目を印刷処理なしに空搬送・排紙させ、その印刷用紙の2枚目から、読み取られた偶数ページを順に印刷させる制御手段と、を備えたことを特徴とする複写機。When a single-sided original is read in order from the last page and two-sided printing is performed, if the original is an even number, first skip the even-numbered pages according to the document skip setting, read only the odd-numbered pages in order, and place the odd-numbered pages on the first side of the printing paper. A copier capable of printing, then skipping the odd pages, reading only the even pages in order, and printing the even pages on the second side of the printing paper to print on both sides of the printing paper. A first button for designating double-sided printing, a second button for designating an odd number of originals, and a first button and a second button for performing double-sided printing of single-sided originals and for odd-numbered originals. When two-sided printing of an odd-numbered single-sided document is indicated, the setting of skipping the document is automatically reversed from the setting content of the two-sided printing of an even-numbered document. After printing is completed, the first sheet of printing paper is conveyed and ejected without printing at the time of printing the second side of printing paper without printing, and the read even-numbered pages are sequentially printed from the second sheet of printing paper. And a copying machine. 片面原稿を最終ページから順に取り込んで両面印刷をおこなう際、原稿が偶数枚の場合、まず、原稿飛ばし設定に従って偶数ページを飛ばして奇数ページのみ順に読み取り、その奇数ページを印刷用紙の第1面に印刷し、次に、奇数ページを飛ばして偶数ページのみ順に読み取ってその偶数ページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷方法において、片面原稿の両面印刷であり、且つ奇数枚原稿であることが指示された奇数枚片面原稿の両面印刷実行時、前記原稿飛ばし設定を自動的に偶数枚原稿の両面印刷時の設定内容と逆にすることを特徴とする複写機の両面複写印刷方法。When performing double-sided printing by taking in a single-sided document in order from the last page, if the document is an even number, first skip even-numbered pages according to the document skip setting, read only odd-numbered pages in order, and place the odd-numbered page on the first side of the printing paper Printing, and then skipping the odd pages, reading only the even pages in order, and printing the even pages on the second side of the printing paper. When performing two-sided printing of an odd-numbered single-sided document designated to be a two-sided document, the skipping setting of the document is automatically reversed to the setting content of the two-sided printing of an even-numbered document. Copy printing method. 請求項2記載の複写機の両面複写印刷方法において、前記奇数枚片面原稿の両面印刷実行時、第1面印刷終了後、印刷用紙の第2面印刷時に印刷用紙の先頭1枚目を印刷処理なしに空搬送して排紙し、その印刷用紙の2枚目から、読み取られた偶数ページを順に印刷することを特徴とする複写機の両面複写印刷方法。3. A double-sided copy printing method for a copying machine according to claim 2, wherein when the odd-numbered single-sided original is printed on both sides, after the first-side printing is completed, the first sheet of the printing paper is printed on the second-side printing of the printing paper. A two-sided copy printing method for a copier, comprising: printing an even-numbered page in order from the second sheet of the printing paper; 請求項2または請求項3記載の複写機の両面複写印刷方法において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙し、第2面印刷時には前記ソーターへ排紙することを特徴とする複写機の両面複写印刷方法。4. A double-sided copy printing method for a copying machine according to claim 2, wherein when a sorter is connected and a plurality of copies are to be printed, the sheets are discharged to the stack at the time of printing on the first side and to the sorter at the time of printing the second side. A double-sided copy printing method for a copying machine, characterized by discharging paper. 片面原稿を先頭ページまたは最終ページから順に取り込んで両面印刷をおこなう際、まず、奇数ページまたは偶数ページのみ順に読み取り、読み取ったページを読み取り順に印刷用紙の第1面に印刷し、次に、読み飛ばしたページのみ順に読み取ってそのページを前記印刷用紙の第2面に印刷する複写機の両面複写印刷方法において、ソーターを接続して複数部印刷を実行する際、第1面印刷時にはスタックへ排紙し、第2面印刷時には前記ソーターへ排紙することを特徴とする複写機の両面複写印刷方法。When reading a single-sided original in order from the first page or the last page and performing double-sided printing, first read only the odd-numbered pages or even-numbered pages, print the read pages on the first side of the printing paper in the reading order, and then skip In a duplex copy printing method of a copier that reads only the pages in order and prints the pages on the second side of the printing paper, when a sorter is connected to execute a plurality of copies and the first side is printed, the sheets are discharged to the stack. And a method of discharging a sheet to the sorter at the time of second-side printing.
JP2002237350A 2002-08-16 2002-08-16 Copying machine and double-sided copying/printing method Pending JP2004077746A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9094554B2 (en) 2008-11-27 2015-07-28 Samsung Electronics Co., Ltd. Host apparatus and system to control duplex printing and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9094554B2 (en) 2008-11-27 2015-07-28 Samsung Electronics Co., Ltd. Host apparatus and system to control duplex printing and method thereof

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