Filter
Top Products
F. Electrical
1. After Replacing the PCB
You must make the adjustments that follow whenever you have replaced the following
PCBs.
a. DC Controller PCB
1) Enter the value recorded on the service mode label attached behind the front door in
service mode (‘3’; see p. 10-102).
2) Adjust the multifeeder paper width sensor; see p. 10-43.
3) Adjust the intensity of the scanning lamp; see p. 10-10.
4) Adjust AE; see p. 10-11.
As necessary, change the settings in service mode and user mode.
Caution:
Be sure to record all new settings that you have entered.
b. Composite Power Supply PCB
1) Enter the values recorded on the label attached to the composite power supply in
service mode (‘No. 315’ through ‘No. 318’; ‘3’ of adjustment mode); see p. 10-103.
Be sure to record any new settings on the service mode label.
c. AE Sensor PCB
1) Adjust AE; see p. 10-11.
Caution:
Be sure to record all new settings that you have entered.
d. Intensity Sensor PCB
1) Adjust the intensity of the scanner lamp; see p. 10-10.
2) Adjust AE; see p. 10-11.
Caution:
Be sure to record all new settings that you have entered.
2. Clearing the Back-Up RAM
1) Open the front door, and insert the door switch activator into the door switch.
2) Press the service mode switch (SW302) with a hex key.
• The copier activates service mode, and indicates ‘1’.
3) Press [4] on the keypad.
• The copier indicates ‘4’.
4) Press the AE key.
• The copier activates operation/inspection mode, and indicates ‘401’.
5) Press [5] and [0] on the keypad.
• The copier indicates ‘450’.
6) Press the Start key.
• The copier indicates ‘noP’.
10-35
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)