Original Read Position Adjustment - Canon iR1200 Series Service Manual

Chapter 12
MODE' is indicated.
3) Press '6' on the keypad so that 'FACULTY TEST' is
indicated.
4) Press '4' on the keypad so that '6-4 ADF' is
indicated.
5) Place 10 sheets of A4 paper in the ADF.
6) Press '8' on the keypad so that the machine will start
registration arch auto adjustment.
7) End the work when the LCD indicates 'OK'; if it
indicates 'NG', on the other hand, start over the
adjustment.
8) Press the Stop key and then the Additional
Functions key (to end TEST MODE).
12.5.3.2 Original Read Position
Adjustment
Adjust the contact sensor original read position for
ADF mode as follows:
Check to make sure that the ADF is fully closed
before starting the work. Moreover, check to be sure
of the absence of any object on the copyboard glass.
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 OK key.
4) Press '2' on the keypad so that '2: CCD TEST' is
indicated.
5) Press '3' so that the machine starts original read
position adjustment.
6) End the work when the LCD indicates 'OK'; if it
indicates 'NG', on the other hand, start over the
adjustment.
7) Press the Stop key and the Additional Functions
key (to end TEST MODE).
12-8
12.5.3.3
Adjustment
Adjust the speed at which originals are moved for
ADF mode as follows:
1) Make a copy of the test sheet in ADF mode on
paper of the same size in Direct.
2) Measure the length "L" in the middle of the copy
output. (It must be 277 -/+ 1 mm for A4, 259 -/+ 1
mm for LTR.)
0006-3208
3) Press the Additional Functions key and the # key to
start service mode.
4) Press the Left/Right Arrow key so that '#6
SCANNER' is indicated.
5) Press the OK key.
6) Press the Left/Right Arrow key so that '7: CCD' is
indicated.
7) Press the OK key.
8) Press the Left/Right Arrow key so that the 2nd row
of the LCD indicates '034:'.
9) Enter a appropriate correction value using the Left/
Right Arrow key so that the length of L measured
in step 2) is as indicated. (An increase by '1' will
increase the length of L by about 0.5 mm.)
10) Press the OK key.
11) Press the Stop key (to end SCANNER).
12) Make a copy of the test sheet in ADF mode on
paper of the same size in Direct; then, check to
make sure that the length of L of the copy is as
indicated.
13) End the work if the length of L is as indicated;
otherwise, start over with step 2).
12.5.3.4 Leading Edge Read
Start Position Adjustment
Adjust the leading edge start position for ADF mode
Original
(feeding direction)
Copy of the test sheet
F-12-13
Speed
0006-3211
L
0006-3222