Checking The Photointerrupters11-47 - Canon NP6330 Service Manual

• A higer setting will move the original stop position to the left. (unit: 0.33 mm)
Copyboard glass
3 Checking the Photointerrupters
The copier photointerrupters may be checked using a convertional meter or its
service mode.
1. Using a Meter
1) Set the meter range to 30VDC.
2) Connect the -probe of the meter to J101-8 (GND) on the DC controller PCB.
(Pedestal controller PCB: J102-8 (GND))
3) Connect the +probe to the terminal indicated on the DC controller PCB (or the
pedestal controller PCB).
4) Make checks as indicated.
2. Using Service Mode
1) Open the front door and insert a door switch activator into the door switch.
2) Press the service mode switch (SSW) with a hex key.
3) Press the 2 key on the keypad.
• The copier indicates '[2]'.
4) Press the OK key.
• The copier activates I/O display mode, and indicates '201'.
5) Enter a number with the keypad, and press the OK key.
• The copier checks each photointerrupter; see the indicator on the control panel.
(For details, see "VII.SERVICE MODE".)
COPYRIGHT © 1997 CANON INC.
Copy paper
Standard stop position
Figure 11-255
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
= 0 ±1 mm
11-47