Canon MG2100 Series Simplified Service Manual page 16

When rotating clockwise:
START
END
4) LCD reset line check (MG4100 series only)
i. Press the OK button. The entire LCD turns white.
ii. Press the OK button again. The LCD turns off.
5) LCD data line short / open check
Press the OK button. The gradation pattern is displayed on the LCD. (No button is valid for approx. 2
seconds after the pattern is displayed.)
Brighter 256 levels
6) Color pattern check
Press the OK button. The color pattern is displayed on the LCD. (No button is valid for approx. 2
seconds after the pattern is displayed.)
RED
GREEN
BLUE
7) Press the ON button to exit the Button and LCD test and return to the menu selection (the ON button is
invalid until this step during the panel check).
< Ink absorber counter setting >
Set the ink absorber counter value to a new EEPROM after the logic board is replaced in servicing.
1) Before replacement of the logic board, check the ink absorber counter value in EEPROM information
print.
2) After replacement of the logic board, the ink absorber counter value should be set in the service mode
using the Service Tool.
Start the machine in the service mode.
In the Ink Absorber Counter section of the Service Tool, select Main_Black, Main_Color,
Platen_Away, or Platen_Home from the Absorber pull-down menu.
3) From the Counter Value(%) pull-down menu, select the value (in 10% increments) which is the closest
to the actual counter value confirmed before replacement of the logic board, and click Set.
When rotating counterclockwise:
START
Darker
BLACK CYAN（G+B）
WHITE MAGENTA（R+B）
YELLOW（R+G）
END
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