Image forming apparatus capable of reducing image

专利名称：Image forming apparatus capable of

reducing image expansion and contraction

发明人：Matsuda, Hiromichi申请号：EP10251245.6申请日：20100712公开号：EP2278410A2公开日：20110126

专利附图：

摘要：In an image forming apparatus, a control device recognizes expansion andcontraction of a pattern image based on an output of an image detector. The controldevice calculates a driving motor velocity fluctuation cancellation pattern for driving a

common drive source. The driving motor velocity fluctuation cancellation pattern createsa latent image expansion and contraction cancellation pattern capable of canceling theexpansion and contraction of the pattern image detected by the image detecting device.A process of obtaining the cancellation patterns is executed except when a print job forforming the toner image is executed in accordance with image information. The controldevice controls the common drive source in accordance with the cancellation drivingmotor pattern.

申请人：Ricoh Company Ltd.

地址：3-6, Nakamagome 1-chome Ohta-ku Tokyo 143-8555 JP

国籍：JP

代理机构：Leeming, John Gerard

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