8) Enter ‘208’ using the keypad, and press the start button.
• The display indicates ‘208’.
9) Press the Start key.
• The display indicates ‘0–255’.
10) Turn VR391 on the DC controller so that the reading on the display is ‘100~105’.
Figure 10-210 DC Controller PCB
11) Turn off and on the power switch.
• This turns off and on the scanning lamp.
12) Press the service mode switch.
• The copier enters service mode, and the display indicates ‘1’.
13) Enter ‘3’ using the keypad, and press the AE key.
• The display indicates ‘301’.
14) Press the Start key.
Caution:
Wait until initial rotation is over.
• After initial rotation is over, the AE indicators starts to flash.
15) Press the AE key; the following take place to indicate that the optimum intensity is
adjusted automatically:
• The AE indicator stops flashing and remains on.
• The scanner moves to the AE measurement position.
• When the intensity has stabilized, the reading taken by the AE sensor is stored in
memory.
• The lamp is turned off, and the scanner is returned to its original position.
16) When the above has ended, press the clear key twice.
• The display indicated ‘3’.
17) Enter ‘1’ using the keypad, and press the AE key.
• The display indicates ‘101’.
18) Enter ‘116’ using the keypad, and press the Start key.
• Make sure that the display indicates ‘68–72’; otherwise, start with step 2) of
operation/inspection mode for re-adjustment.
10-12
CHAPTER 10 TROUBLESHOOTING
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
