JP2004243726A5 - - Google Patents

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Publication number
JP2004243726A5
JP2004243726A5 JP2003038135A JP2003038135A JP2004243726A5 JP 2004243726 A5 JP2004243726 A5 JP 2004243726A5 JP 2003038135 A JP2003038135 A JP 2003038135A JP 2003038135 A JP2003038135 A JP 2003038135A JP 2004243726 A5 JP2004243726 A5 JP 2004243726A5
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JP
Japan
Prior art keywords
recording medium
switching
forming apparatus
image forming
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003038135A
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Japanese (ja)
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JP2004243726A (en
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Publication date
Application filed filed Critical
Priority to JP2003038135A priority Critical patent/JP2004243726A/en
Priority claimed from JP2003038135A external-priority patent/JP2004243726A/en
Publication of JP2004243726A publication Critical patent/JP2004243726A/en
Publication of JP2004243726A5 publication Critical patent/JP2004243726A5/ja
Pending legal-status Critical Current

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Claims (3)

ヘッドに設けられたノズルから記録材を吹き付けて、記録媒体に画像を形成する画像形成装置において、
当該画像形成装置に設定された記録媒体のサイズを測定して実測サイズを検出する検出手段と、
前記検出手段により検出された前記実測サイズに基づいて、前記記録媒体に印刷処理を施さない領域と、印刷処理を施す領域と、を設定するマスク処理を施すマスク処理手段と、
前記マスク処理手段により設定された前記印刷処理を施す領域にのみ印刷処理を施す印刷処理手段と、
前記記録媒体の状態を検出するセンサと、
前記センサの出力信号に基づいて前記記録媒体の有無を検出する検出回路と、
前記センサの出力信号に基づいて前記検出回路の駆動および停止を切り替える切替手段と、を備え、
前記検出手段は、所定の検出領域の範囲内において、前記記録媒体のサイズを測定することを特徴とする画像形成装置。
In an image forming apparatus for forming an image on a recording medium by spraying a recording material from a nozzle provided in the head,
Detection means for measuring the size of the recording medium set in the image forming apparatus and detecting the actual size;
Mask processing means for performing mask processing for setting a region for not performing print processing on the recording medium and a region for performing print processing based on the actually measured size detected by the detection means;
Print processing means for performing print processing only on an area to be subjected to the print processing set by the mask processing means;
A sensor for detecting a state of the recording medium;
A detection circuit for detecting the presence or absence of the recording medium based on an output signal of the sensor;
Switching means for switching between driving and stopping of the detection circuit based on an output signal of the sensor ,
The image forming apparatus, wherein the detecting unit measures the size of the recording medium within a predetermined detection area.
前記切替手段は、前記センサにより検出された前記記録媒体の状態を示す信号を保持するカウンタと、前記記録媒体の有無を検出する際の基準となる所定の位置情報を保持したレジスタと、前記カウンタと前記レジスタとの値を比較する比較器と、を備え、
前記切替手段は、前記比較器の出力信号に基づいて、前記検出回路の駆動および停止を切り替えることを特徴とする請求項記載の画像形成装置。
The switching means includes a counter that holds a signal indicating the state of the recording medium detected by the sensor, a register that holds predetermined position information serving as a reference when detecting the presence or absence of the recording medium, and the counter And a comparator for comparing values with the register,
The switching means based on the output signal of the comparator, the image forming apparatus according to claim 1, wherein the switching the driving and stopping of the detection circuit.
前記検出回路の駆動および停止切り替えを実行する割り込み要求を発生する要求発生回路を備え、
前記切替手段は、前記要求発生回路で発生した前記割り込み要求に基づいて前記検出回路の駆動および停止を切り替えることを特徴とする請求項記載の画像形成装置。
A request generation circuit for generating an interrupt request for switching between driving and stopping of the detection circuit;
It said switching means, an image forming apparatus according to claim 1, wherein the switching the driving and stopping of the detection circuit on the basis of the interrupt request generated by the request generation circuit.
JP2003038135A 2003-02-17 2003-02-17 Image formation apparatus Pending JP2004243726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003038135A JP2004243726A (en) 2003-02-17 2003-02-17 Image formation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003038135A JP2004243726A (en) 2003-02-17 2003-02-17 Image formation apparatus

Publications (2)

Publication Number Publication Date
JP2004243726A JP2004243726A (en) 2004-09-02
JP2004243726A5 true JP2004243726A5 (en) 2005-11-04

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ID=33022740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003038135A Pending JP2004243726A (en) 2003-02-17 2003-02-17 Image formation apparatus

Country Status (1)

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JP (1) JP2004243726A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4570899B2 (en) * 2004-04-23 2010-10-27 株式会社リコー Image forming apparatus

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