发明名称 |
Image forming apparatus and method of detecting the detection characteristics of a reflection density sensor |
摘要 |
An image forming apparatus is able to form steady test-pattern toner images for calibration of reflection density detection characteristics with ample toner. The operation consists of forming a test-pattern toner image for calibration of the reflection density detection characteristics, which is formed of a plurality of toner images of different colors aside from a reference test-pattern toner image for controlling image forming conditions, detecting the detection characteristics of a reflection density sensor from the result of detection of the quantity of toner attached to the test-pattern toner image for calibration of the reflection density detection characteristics, and calibrating the output characteristics of the reflection density sensor.
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申请公布号 |
US7215896(B2) |
申请公布日期 |
2007.05.08 |
申请号 |
US20040901187 |
申请日期 |
2004.07.29 |
申请人 |
RICOH PRINTING SYSTEMS, LTD. |
发明人 |
YAMADA SHINTARO;SHIMADA AKIRA;SATO TATSUNARI;FUKASAWA NOBUAKI;NARITA SATOSHI |
分类号 |
G03G15/00;G03G21/00 |
主分类号 |
G03G15/00 |
代理机构 |
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