Invention Grant
- Patent Title: Image forming apparatus in which intermediate gradation reproducibility is enhanced
- Patent Title (中): 提高中间灰度再现性的图像形成装置
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Application No.: US13074796Application Date: 2011-03-29
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Publication No.: US08559083B2Publication Date: 2013-10-15
- Inventor: Tomohiro Kato , Naotoshi Kawai , Tomoyuki Imura , Eri Kusano
- Applicant: Tomohiro Kato , Naotoshi Kawai , Tomoyuki Imura , Eri Kusano
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee: Konica Minolta Business Technologies, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Morrison & Foerster LLP
- Priority: JP2010-091587 20100412
- Main IPC: H04N1/46
- IPC: H04N1/46 ; H04N1/40
Abstract:
A first screen group and a second screen group are stored in an image forming apparatus. In the first screen group, the first region expands with increasing gradation value based on a first rule. In the second screen group, the first region expands with increasing gradation value based on an independent second rule different from the first rule. A screen selector relocates a first portion and a second portion such that the first portion and the second portion are joined by a second region that is not a toner adhesion control target, when the first portion and the second portion are adjacent as a result of the selection of the screen in each unit region of the input image. The first portion includes the screen included in the first screen group, and the second portion includes the screen included in the second screen group.
Public/Granted literature
- US20110249277A1 IMAGE FORMING APPARATUS IN WHICH INTERMEDIATE GRADATION REPRODUCIBILITY IS ENHANCED Public/Granted day:2011-10-13
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