Canon iR8500 Service Manual page 725

SERVICE MODE
COPIER>FUNCTION
<PANEL>
Use it to turn on the control panel indications.
LCD-CHK
Use it to check the touch panel for missing dots.
<Using the Mode>
1) Select the item, and press the OK key.
•
2) Press the Stop key to stop the operation.
LED-CHK
Use it to check the LEDs in the control panel.
<Using the Mode>
1) Select the item, and press the OK key.
•
2) Select LED-OFF to end the operation.
LED-OFF
Use it to end a check on the LEDs in the control panel.
1) Select the item to end the LED-CHK operation.
KEY-CHK
Use it to check key inputs.
<Using the Mode>
1) Select the item.
2) Press the key to check. If normal, its corresponding character will be
3) At the end of the check, select KEY-CHK to end the operation.
TOUCHCHK
Use it to adjust the coordinates of the touch panel.
<Using the Mode>
1) Select the item, and press the OK key.
2) Press the symbol + appearing on the touch panel in sequence (9 in to-
S-82
The entire face of the touch panel will repeatedly change in the follow-
ing sequence: white, black, red, green, and red.
The LEDs will go on in sequence.
indicated on the touch panel (T00-204-01).
• Try to match a press on the touch panel and its coordinates on the
LCD.
• Execute this mode if you have replaced the LCD.
tal).
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001