Invention Grant
US08493613B2 Apparatus and method controlling zooming process at laser device for high-speed high-resolution double-sided printing without wide-ranged image degradation or banding
有权
用于高速高分辨率双面打印的激光装置的放大处理的装置和方法,无需广泛的图像劣化或条带
- Patent Title: Apparatus and method controlling zooming process at laser device for high-speed high-resolution double-sided printing without wide-ranged image degradation or banding
- Patent Title (中): 用于高速高分辨率双面打印的激光装置的放大处理的装置和方法,无需广泛的图像劣化或条带
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Application No.: US12721012Application Date: 2010-03-10
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Publication No.: US08493613B2Publication Date: 2013-07-23
- Inventor: Nobuyoshi Kaima
- Applicant: Nobuyoshi Kaima
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-058652 20090311
- Main IPC: H04N1/393
- IPC: H04N1/393 ; H04N1/58 ; G06K15/12 ; B41J2/47

Abstract:
An image forming apparatus includes a positioning unit that acquires a misalignment amount of a pixel in a main-scanning direction and a sub-scanning direction, the pixel as a reference pixel for zooming image data, and decides a position of a pixel as a correction target, based on the misalignment amount; a correcting unit that corrects the pixel; a zooming unit that controls the positioning unit and the correcting unit so as to repeatedly perform the positioning process and the correction process on a pixel line; a pattern recognition unit that performs pattern matching on a predetermined pattern and a predetermined pixel line; and a pixel position changing unit that shifts the decided pixel position in the sub-scanning direction, wherein the zooming unit performs the zooming process on the pixel line of the sub-scanning direction including the pixel that is located at shifted pixel position.
Public/Granted literature
- US20100231940A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD Public/Granted day:2010-09-16
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