Canon PC400 Service Manual - Page 185
and retains 'E0'., without any operation; during the period, the microprocessor remains powered
View all Canon PC400 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 185 highlights
CHAPTER 10 TROUBLESHOOTING Code Cause • Copyboard drive assembly (faulty operation) • Copyboard drive solenoid (SL2; faulty) • Copyboard position sensor PCB (Q902; faulty) • DC controller/DC power supply PCB (faulty) • Control panel PCB (faulty) • DC controller/DC power supply PCB (faulty) • Power supply frequency (error) Description • The copyboard position sensor (Q902) goes ON when copying operation starts. • The copyboard position sensor (Q902) is ON 0.8 sec. after copying operation has started. • The copyboard position sensor (Q902) does not go ON within 5.5 sec. after copying operation has started. • The copyboard does not reach the start position within a specific period of time, or it moves past the start position. • The copyboard position sensor (Q902) is ON 1.5 sec. after the copyboard has started moving forward from the start position. • The copyboard position sensor (Q902) does not go ON 10.4 sec. after the copyboard has started moving forward from the start position. • The copyboard position sensor (Q902) does not go ON 1.2 sec. or 4.7 sec. after the copyboard has started moving in reverse from the reversal position. • The scanning lamp has remained for 2 sec. continuously at such times as not prescribed. • The power supply frequency is higher than specified. Note: 1. The copier does not use code 'E1', 'E3', 'E4', or 'E5'. 2. After self diagnosis has gone ON, the copier may be reset by switching it OFF and then ON. In the case of 'E0', however, the power is automatically turned OFF. To reset, disconnect the power plug once, open the upper cover, or wait about 5 minutes without any operation; during the period, the microprocessor remains powered and retains 'E0'. This consideration is to prevent the user from resetting the machine easily when the thermistor may have blown; otherwise, the fixing heater would become overheated, damaging parts near it. 3. Activation of self diagnosis forces the fixing heater (H1) and main motor (M1) OFF. COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 10-41