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e-2c scanner runs faster than 670 seconds 1. dc power board failure
2 Optical board failure
3 AC power fluctuations
4 main control board failure
e-2d in the copying process does not receive coded pulses within 118ms 1. scanning process block
2 . Scanning motor failure
3 Optical board failure
4 main control board failure
e-52 after the main switch is turned on 75 seconds , the thermistor to detect the temperature reach 125 degrees 1. temperature Insurance Open
2 fixing section open relay
3 fusing lamp open
4 fixing section power supply board failure
5 control board failure
on e-53 thermistor temperature has been higher than 270 degrees 1. thermistor short circuit
2 MPU fault
on e-54 thermistor detects a temperature higher than 210 degrees over a sustained 145 seconds . fixing section three terminal thyristor short circuit
2 fixing section power supply board failure
e-55 after the main switch is turned on for 5 seconds, the thermistor detects the temperature rise to 2 degrees is not a thermistor open
2 fixing section triac open
3 control board failure
e-61 in 1.6 seconds to start copying , cpu not receive signals a red bathing Main motor failure
2. Ac drive board failure
3 control board failure
4 . Pulse generator sensor failure
e-71 pulley rotation within six seconds , cpu failed to detect one . photoreceptor main parts not installed
2 MPU fault
3 main parts of the photoreceptor sensor
Fault
e-93 has an irregular signal is transmitted from the optical plate to an optical board control board failure
2 MPU fault
Two . Maintenance table
1 checkpoint
Part Number Function
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