Service manual

Chapter 12
12-3
12.2 Scanning System
12.2.1 Preparing a Test
Sheet for Adjustment
0007-7202
Preparing a Test Sheet: On a sheet of LTR paper, draw
straight lines as indicated:
F-12-3
12.2.2 Contact Sensor LED
Intensity Auto
Adjustment
0007-7203
Before starting adjustment, verify that there is nothing
on the copyboard glass. Also verify that the ADF is
securely closed.
Execute auto adjustment of the contact sensor LED
intensity as follows:
1) Press the Additional Functions key and the # key to
start service mode.
2) Press the Left/Right Arrow key so that 'TEST
MODE' is indicated.
3) Press the Set key.
4) Press '2' on the keypad so that 'TEST MODE' is
indicated.
5) Press '7' on the keypad to clear the CCD parameter.
6) Press the Stop key to return to 'TEST MODE'.
7) Press '2' on the keypad so that '2: CCD TEST' is
indicated.
8) Press '8' on the keypad so that the machine starts
contact sensor LED intensity auto adjustment.
9) End the work when the LCD indicates 'OK'; if it
indicates 'NG', on the other hand, start over.
10) Press the Stop key and the Additional Functions
key (to end TEST MODE).
10mm
10mm
10mm
10mm
<Using LTR Paper>
Draw straight lines.
(feeding direction)
10mm
279mm
216mm