Electrophotographic device
专利汇可以提供Electrophotographic device专利检索，专利查询，专利分析的服务。并且PURPOSE:To notify the substantial usage of a photosensitive body and its service life by providing a service life prediction display device displaying the number of sheets range in different colors until the service life of the photosensitive body is expired. CONSTITUTION:A unit case equipped with a fresh photosensitive drum, etc., is set to a main body. A CPU 21 (comparison/judgement means) reads a numeric Ni stored in an EP.ROM 24, and makes a comparison/judgement. When the CPU 21 judges YES, an engine for a carrying means, etc., is ready for driving, and the numeric Ni is recorded in a RAM 25. After printing, the content of the RAM 25, the number of printing papers is incremented to rewrite the number of papers in a ROM 24 into a total. The CPU 21 judges that belongs the Ni in which the number of sheet range previously determined. When it is equal to or less than 7,000, a green LED 26G forming a display means 26 is lit, an when it is between 7,001 to 9,000, LEDs 26G and 26R (orange) are lit. When its exceeds 9,000, an LED 26R is lit. On the other hand, if it exceeds 10,000, the carrying means and other parts are stopped.，下面是Electrophotographic device专利的具体信息内容。
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|---|---|---|
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| 一种多阶COB光引擎 | 2020-05-08 | 371 |
| 高压直下式面板灯 | 2020-05-15 | 455 |
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