Sakuwa
Makoto Sakuwa, Tokyo JP
Patent application number | Description | Published |
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20090116893 | Printing Device and Printing Method - A first cutter | 05-07-2009 |
Tohru Sakuwa, Osaka JP
Patent application number | Description | Published |
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20100290804 | EXHAUST DEVICE, IMAGE FORMING APPARATUS INCLUDING THE SAME, RECORDING MEDIUM ON WHICH CONTROL PROGRAM FOR EXHAUST DEVICE IS RECORDED - An exhaust device provided in an image forming apparatus is provided. In the exhaust device, an initial condition setting unit sets an initial drive output value of a exhaust fan at a time of starting an image forming operation based on a calculation value calculated by an image bearing member drive counting unit. A drive unit drives the exhaust fan to start to discharge air in the image forming apparatus. A continuation condition setting unit sets a continuation drive condition at a time of continuously driving the exhaust fan from a point in time when ending the image forming operation based on a count value of the number of image formation by the job counting unit | 11-18-2010 |
Tohru Sakuwa, Nara-Shi JP
Patent application number | Description | Published |
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20080292354 | Cleaning device, image forming apparatus, method for controlling cleaning device, control program, and computer-readable storage medium - A cleaning device | 11-27-2008 |
20100003413 | Charging roller, process cartridge and image forming apparatus - An object of the present invention is to provide a charging roller (i) which includes a rubber member whose surface is subjected to a hardening treatment using a solvent containing at least an isocyanate compound and (ii) which can prevent leakage of an ionic conductive agent even if the charging roller is placed under conditions of high temperature and high humidity for a long time. The charging roller is made by forming a rubber layer on a metal core. The rubber layer is an epichlorohydrin based rubber base material to which an ionic conductive agent is added, the rubber layer being subjected to a surface treatment by applying a solution containing the isocyanate compound and heating it. This surface treatment is carried out under such conditions that a coefficient of dynamic friction at a contact portion between the rubber layer and a photoreceptor becomes 0.4 or less. | 01-07-2010 |