JP2007088928A5 - - Google Patents

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Publication number
JP2007088928A5
JP2007088928A5 JP2005276507A JP2005276507A JP2007088928A5 JP 2007088928 A5 JP2007088928 A5 JP 2007088928A5 JP 2005276507 A JP2005276507 A JP 2005276507A JP 2005276507 A JP2005276507 A JP 2005276507A JP 2007088928 A5 JP2007088928 A5 JP 2007088928A5
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Japan
Prior art keywords
forming apparatus
resolution
image forming
sub
scanning direction
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JP2005276507A
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Japanese (ja)
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JP2007088928A (en
JP4730036B2 (en
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Priority to JP2005276507A priority Critical patent/JP4730036B2/en
Priority claimed from JP2005276507A external-priority patent/JP4730036B2/en
Publication of JP2007088928A publication Critical patent/JP2007088928A/en
Publication of JP2007088928A5 publication Critical patent/JP2007088928A5/ja
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Publication of JP4730036B2 publication Critical patent/JP4730036B2/en
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Claims (7)

入力画像データに基づいて異なる色の像を重ねて主走査及び副走査により画像を形成する画像形成装置であって位置ずれ量に対応する補正パラメータを、前記入力画像データの副走査方向の解像度のn(nは正の整数)倍の分解能で記憶する補正パラメータ記憶手段と、
前記入力画像データを一時的に格納する補正ラインバッファメモリと、
前記補正ラインバッファメモリに格納された入力画像データを対象として、副走査方向の解像度を前記n倍に補間するとともに、前記補正パラメータに基づいて前記入力画像データに対するラインの副走査方向のアドレスを制御するアドレス制御手段と、
を有することを特徴とする画像形成装置。
Overlapping the color image of which vary based on the input image data to an image forming apparatus to form more image in the main scanning and sub-scanning, a correction parameter corresponding to the displacement amount, in the sub-scanning direction of the input image data Correction parameter storage means for storing at a resolution n (n is a positive integer) times the resolution;
A correction line buffer memory for temporarily storing the input image data;
For the input image data stored in the correction line buffer memory, the resolution in the sub-scanning direction is interpolated by n times, and the line sub-scanning direction address for the input image data is controlled based on the correction parameter. Address control means to
An image forming apparatus comprising:
前記アドレス制御手段が行う補間の解像度、形成される画像の解像度、及び画像の形成の動作モードによって、前記アドレス制御手段に解像度の補間を実施させるか否かを判定する判定する判定手段と、
前記判定手段の判定に基づき前記アドレス制御手段に解像度の補間を実施させる実施手段と、
を更に備えることを特徴とする請求項1記載の画像形成装置。
A determination unit that determines whether or not to cause the address control unit to perform resolution interpolation according to a resolution of interpolation performed by the address control unit, a resolution of an image to be formed, and an operation mode of image formation;
Implementation means for causing the address control means to perform resolution interpolation based on the determination of the determination means;
The image forming apparatus according to claim 1, further comprising:
前記位置ずれ量は、傾き、及び歪みの少なくとも何れか1つに起因するものであることを特徴とする請求項1又は請求項2記載の画像形成装置。 The image forming apparatus according to claim 1, wherein the displacement amount is caused by at least one of inclination and distortion . 前記潜像を形成するLEDチップで構成されるLEDアレイを更に備え、
前記位置ずれ量は、傾き歪み、及び前記LEDチップの実装の位置誤差の少なくとも何れか1つに起因するものであることを特徴とする1又は請求項2記載の画像形成装置。
An LED array composed of LED chips for forming the latent image;
3. The image forming apparatus according to claim 1, wherein the positional deviation amount is caused by at least one of inclination , distortion , and a positional error in mounting the LED chip.
前記補正パラメータの示す補正単位を、前記LEDチップの画素数の整数倍とすることを特徴とする請求項4記載の画像形成装置。   5. The image forming apparatus according to claim 4, wherein a correction unit indicated by the correction parameter is an integral multiple of the number of pixels of the LED chip. 前記アドレス制御手段は、前記補正ラインバッファメモリに格納された前記入力画像データを対象として、副走査方向の解像度を前記n倍に補間する際に、同じアドレスをn回読み出すことにより、前記入力画像データに対する副走査方向の解像度を前記n倍に補間することを特徴とする請求項1から請求項5のいずれか1項に記載の画像形成装置。The address control means reads the same address n times when the resolution in the sub-scanning direction is interpolated n times for the input image data stored in the correction line buffer memory. 6. The image forming apparatus according to claim 1, wherein the resolution in the sub-scanning direction with respect to data is interpolated to the n times. 前記主走査方向における副走査方向の位置ずれ量を検出する位置ずれ量検出手段を更に備え、前記補正パラメータ記憶手段は、前記位置ずれ量検出手段により検出された位置ずれ量に対応する補正パラメータを記憶することを特徴とする請求項1から請求項6のいずれか1項に記載の画像形成装置。The apparatus further comprises a positional deviation amount detecting means for detecting a positional deviation amount in the sub-scanning direction in the main scanning direction, and the correction parameter storage means stores a correction parameter corresponding to the positional deviation amount detected by the positional deviation amount detection means. The image forming apparatus according to claim 1, wherein the image forming apparatus stores the image.
JP2005276507A 2005-09-22 2005-09-22 Image forming apparatus Expired - Fee Related JP4730036B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005276507A JP4730036B2 (en) 2005-09-22 2005-09-22 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005276507A JP4730036B2 (en) 2005-09-22 2005-09-22 Image forming apparatus

Publications (3)

Publication Number Publication Date
JP2007088928A JP2007088928A (en) 2007-04-05
JP2007088928A5 true JP2007088928A5 (en) 2008-11-06
JP4730036B2 JP4730036B2 (en) 2011-07-20

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JP2005276507A Expired - Fee Related JP4730036B2 (en) 2005-09-22 2005-09-22 Image forming apparatus

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US8149475B2 (en) 2007-10-30 2012-04-03 Ricoh Company, Ltd. Apparatus, method, and computer program product for processing image
JP2010011429A (en) 2008-06-30 2010-01-14 Canon Inc Image processing apparatus and method of controlling the same
JP2010154194A (en) * 2008-12-25 2010-07-08 Kotobukido Kami Seihin Kogyo Kk System of printing tally impression of indenture or the like, and method of verifying tally impression
JP5672847B2 (en) 2009-08-24 2015-02-18 株式会社リコー Optical writing apparatus, image forming apparatus, control program for optical writing apparatus
JP2012056111A (en) * 2010-09-06 2012-03-22 Ricoh Co Ltd Optical writing device, image forming apparatus, method and program for controlling optical writing device, and recording medium
JP5789939B2 (en) * 2010-09-15 2015-10-07 株式会社リコー Image processing apparatus, image forming apparatus, image processing method, and subline lighting control program
JP5691330B2 (en) * 2010-09-15 2015-04-01 株式会社リコー Optical writing apparatus, image forming apparatus, optical writing apparatus control method, control program, and recording medium
JP5760418B2 (en) 2010-12-10 2015-08-12 株式会社リコー Light source control circuit, image forming apparatus, and light source control circuit control method
JP5793857B2 (en) 2010-12-13 2015-10-14 株式会社リコー Light emission control device, light emission control method, and image forming apparatus
JP2013063599A (en) * 2011-09-16 2013-04-11 Ricoh Co Ltd Exposure control apparatus, image forming apparatus, and exposure control method
JP5987504B2 (en) 2012-07-02 2016-09-07 株式会社リコー Optical writing control apparatus, image forming apparatus, and optical writing control method
JP2014140972A (en) 2013-01-22 2014-08-07 Ricoh Co Ltd Image formation control device, image formation device, and image formation control method
JP5997644B2 (en) * 2013-03-26 2016-09-28 株式会社沖データ Image forming apparatus and image forming method
JP5900581B2 (en) * 2014-11-17 2016-04-06 株式会社リコー Optical writing apparatus, image forming apparatus, optical writing apparatus control method, optical writing apparatus control program, and recording medium
JP6538548B2 (en) * 2015-12-25 2019-07-03 株式会社Screenホールディングス Image processing apparatus for printing apparatus and image processing method therefor

Family Cites Families (3)

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JPH09188000A (en) * 1996-01-11 1997-07-22 Oki Data:Kk Device and method for color recording
JPH1016320A (en) * 1996-06-28 1998-01-20 Brother Ind Ltd Printer
JP2003307901A (en) * 2002-04-17 2003-10-31 Canon Inc Color image forming device and control method therefor

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