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佳能４５０传真机故障检修３例胡健例１］故障现象开机后，显示屏交替显示“ＣＨＥＣＫＰＡＰＥＲ”和“时间”，不能正常收发和复印。分析检修先检查记录纸传感器部分（ＲＰＳ）。该传感器为反射型光电传感器，主要用于探测有无记录纸（探测记录纸的黑端），其型号为ＨＨ...
Canon 450 fax machine troubleshooting 3 cases Hu Jian Case 1] Symptom After the boot, the display alternately displays “CHECKPAPER” and “time”, can not send and receive properly and copy. Analysis and Maintenance Check the recording paper sensor section (RPS) first. The sensor is a reflective photoelectric sensor, mainly used to detect the presence or absence of recording paper (detection of the black end of the recording paper), its model HH ...