Canon Pixma MP560 Service Manual page 57

3) Transparent pattern display check
3-1) Press the OK button. "OK1" in white is displayed on the black background. If the result is not good,
"NG1" in black is displayed on the white background (transparent color) immediately after "OK1."
Wait for approx. 2 seconds.
3-2) Press the OK button. "OK2" in black is displayed on the white background. If the result is not good,
"NG2" in white is displayed on the black background (transparent color) immediately after "OK2."
4) LCD flicker adjustment
4-1) Press the OK button. The LCD flicker adjustment screen is displayed.
4-2) By pressing the left or right cursor button, change the VrefPWM value to eliminate flicker on the
screen. The specifiable VrefPWM values are from 36 to 3D (hexadecimal).
4-3) Press the OK button. The machine returns to be ready for selection of another function ("Service
Mode Idle" is displayed on the LCD).
(5) 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.
In the Ink Absorber Counter section of the Service Tool, select Main from the Absorber pull-down
menu.
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.
3) Print EEPROM information to confirm that the value is properly set to the EEPROM.
<4-1. User Mode & 4-2. Service Mode>
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