JP2009036983A5 - - Google Patents

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Publication number
JP2009036983A5
JP2009036983A5 JP2007201095A JP2007201095A JP2009036983A5 JP 2009036983 A5 JP2009036983 A5 JP 2009036983A5 JP 2007201095 A JP2007201095 A JP 2007201095A JP 2007201095 A JP2007201095 A JP 2007201095A JP 2009036983 A5 JP2009036983 A5 JP 2009036983A5
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Japan
Prior art keywords
image
image forming
forming apparatus
state
detection
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JP2007201095A
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Japanese (ja)
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JP2009036983A (en
JP5311777B2 (en
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Priority to JP2007201095A priority Critical patent/JP5311777B2/en
Priority claimed from JP2007201095A external-priority patent/JP5311777B2/en
Publication of JP2009036983A publication Critical patent/JP2009036983A/en
Publication of JP2009036983A5 publication Critical patent/JP2009036983A5/ja
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Claims (10)

記録媒体の表面に、地紋画像を形成する画像形成装置であって、
前記記録媒体に形成された画像が複写された場合に識別可能に現われる潜像部及び背景部を、前記地紋画像として形成する画像形成手段と、
画像形成に影響する前記画像形成手段の状態を検出する検出手段と、
前記検出手段が検出した前記画像形成手段の状態に応じて、前記地紋画像の前記潜像部及び前記背景部を形成する条件を調整する調整手段と、
を備えることを特徴とする画像形成装置。 An image forming apparatus for forming a tint block image on a surface of a recording medium,
Image forming means for forming a latent image portion and background portion appears identifiable when the image formed in said recording medium is copied, as the tint block image,
Detecting means for detecting the state of the image forming means affecting image formation;
Adjusting means for adjusting conditions for forming the latent image portion and the background portion of the copy-forgery-inhibited pattern image according to the state of the image forming means detected by the detecting means;
An image forming apparatus comprising: 前記画像形成手段は、
静電潜像を担持するための像担持体と、
前記像担持体の表面を帯電する帯電手段と、
帯電した前記像担持体の表面に露光して、前記像担持体の表面に静電潜像を生成する露光手段と、
現像剤を収容する収容部を有し、収容した前記現像剤を用いて、前記像担持体の表面に生成された前記静電潜像を現像する現像手段と、
前記現像手段により現像された画像を前記記録媒体に転写する転写手段と、
を含み、
前記検出手段は、前記画像形成手段の状態として、
前記像担持体の特性変化、収容された前記現像剤の劣化状態、及び、画像形成が行われる環境、の少なくとも何れか１つを検出し、
前記調整手段は、前記検出手段による検出結果のうち少なくとも何れか１つを参照し、前記地紋画像を形成する条件を調整することを特徴とする請求項１に記載の画像形成装置。 The image forming unit includes:
An image carrier for carrying an electrostatic latent image;
Charging means for charging the surface of the image carrier;
Exposure means for exposing the surface of the charged image carrier to generate an electrostatic latent image on the surface of the image carrier;
Has a storage portion for storing developer, the accommodated by using the developer, a developing unit for developing the electrostatic latent image formed on the surface of the image bearing member,
Transfer means for transferring the image developed by the developing means to the recording medium;
Including
The detection means is a state of the image forming means,
Detecting at least one of a characteristic change of the image carrier, a deterioration state of the stored developer, and an environment in which image formation is performed;
The adjusting means, the reference to at least any one of the detection result by the detection means, the image forming apparatus according to claim 1, characterized in that adjusting the conditions for forming the pattern image. 前記検出手段は、前記画像形成手段の状態として、前記像担持体の膜厚を検出することを特徴とする請求項２に記載の画像形成装置。 It said detecting means, as the state of the image forming unit, an image forming apparatus according to claim 2, characterized in that to detect the thickness of the image bearing member. 前記検出手段は、前記画像形成手段の状態として、前記現像手段に含まれる現像剤担持体の積算回転数から、前記現像剤の劣化状態を検出することを特徴とする請求項２に記載の画像形成装置。   3. The image according to claim 2, wherein the detection unit detects a deterioration state of the developer from a cumulative number of rotations of a developer carrier included in the development unit as a state of the image forming unit. Forming equipment. 前記調整手段は、前記検出手段による検出結果を参照して、地紋画像の画素密度を変化させることを特徴とする請求項１に記載の画像形成装置。   The image forming apparatus according to claim 1, wherein the adjustment unit changes a pixel density of the copy-forgery-inhibited pattern image with reference to a detection result by the detection unit. 前記調整手段は、前記検出手段による検出結果を参照して、地紋画像のドットの大きさを変化させることを特徴とする請求項１に記載の画像形成装置。   The image forming apparatus according to claim 1, wherein the adjustment unit changes a dot size of the copy-forgery-inhibited pattern image with reference to a detection result by the detection unit. 前記調整手段は、前記検出手段による検出結果を参照して、地紋画像の濃度を変化させることを特徴とする請求項１に記載の画像形成装置。   The image forming apparatus according to claim 1, wherein the adjustment unit changes a density of the tint block image with reference to a detection result by the detection unit. 前記検出手段は、前記画像形成が行われる環境として、前記画像形成手段の周囲の温度及び湿度を検出することを特徴とする請求項２に記載の画像形成装置。   The image forming apparatus according to claim 2, wherein the detection unit detects a temperature and humidity around the image forming unit as an environment in which the image formation is performed. 記録媒体の表面に地紋画像を形成する画像形成装置の制御方法であって、
前記画像形成装置の検出手段が、画像形成に影響する前記画像形成装置の状態を検出する検出工程と、
前記画像形成装置の調整手段が、前記検出工程で検出した前記画像形成装置の状態に応じて、前記地紋画像の前記潜像部及び前記背景部を形成する条件を調整する調整工程と、
を含むことを特徴とする画像形成装置の制御方法。 A control method of an image forming apparatus for forming a tint block image on a surface of a recording medium,
A detection step in which the detection unit of the image forming apparatus detects a state of the image forming apparatus that affects image formation;
Adjusting means of the image forming apparatus, the adjustment process in which the detection step according to the state of the detected the image forming apparatus, adjusting the conditions for forming the latent image portion and the background portion of the tint block image,
A control method for an image forming apparatus. 記録媒体の表面に、潜像部と背景部とを有する地紋画像を形成する画像形成装置の制御プログラムであって、
画像形成に影響する前記画像形成装置の状態を検出する検出工程と、
前記検出工程で検出した前記画像形成装置の状態に応じて、前記地紋画像の前記潜像部及び前記背景部を形成する条件を調整する調整工程と、
をコンピュータに実行させることを特徴とする画像形成装置の制御プログラム。 A control program for an image forming apparatus that forms a tint block image having a latent image portion and a background portion on the surface of a recording medium,
A detection step of detecting a state of the image forming apparatus that affects image formation;
An adjustment step of the detection process according to the state of the detected the image forming apparatus, adjusting the conditions for forming the latent image portion and the background portion of the tint block image,
A program for controlling an image forming apparatus.
JP2007201095A 2007-08-01 2007-08-01 Image forming apparatus Expired - Fee Related JP5311777B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007201095A JP5311777B2 (en) 2007-08-01 2007-08-01 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007201095A JP5311777B2 (en) 2007-08-01 2007-08-01 Image forming apparatus

Publications (3)

Publication Number Publication Date
JP2009036983A JP2009036983A (en) 2009-02-19
JP2009036983A5 true JP2009036983A5 (en) 2010-09-16
JP5311777B2 JP5311777B2 (en) 2013-10-09

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JP2007201095A Expired - Fee Related JP5311777B2 (en) 2007-08-01 2007-08-01 Image forming apparatus

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6631308B2 (en) * 2016-02-22 2020-01-15 コニカミノルタ株式会社 Image forming device
JP7440239B2 (en) * 2019-10-21 2024-02-28 シャープ株式会社 Pattern generation device, pattern generation method, and pattern formation device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3375992B2 (en) * 1992-09-28 2003-02-10 キヤノン株式会社 Image processing apparatus and method
JP3267342B2 (en) * 1992-09-28 2002-03-18 キヤノン株式会社 Image processing apparatus and image processing method
JP3495822B2 (en) * 1995-07-07 2004-02-09 共同印刷株式会社 Copy-prevention printed matter
JP2004029100A (en) * 2002-06-21 2004-01-29 Canon Inc Image forming apparatus
JP4182046B2 (en) * 2004-01-23 2008-11-19 キヤノン株式会社 Print processing system and print processing method
JP2005231145A (en) * 2004-02-18 2005-09-02 Sharp Corp Image forming apparatus and image forming system
JP2007081750A (en) * 2005-09-13 2007-03-29 Canon Inc Image forming apparatus, its method, and program
JP4665703B2 (en) * 2005-10-14 2011-04-06 富士ゼロックス株式会社 Printing apparatus and tint block printing method

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