Adjustment - Canon MP640 Service Manual

MP640 / MP648
1. MAINTENANCE
1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables
by Service Engineer

(1) Adjustment

Adjustment
EEPROM
initialization
Destination
settings
(EEPROM
settings)
Ink absorber
counter resetting
(EEPROM
settings)
Ink absorber
counter value
setting
(EEPROM
settings)
Ink absorber
replacement
Paper feed motor
position
adjustment
CD / DVD
detection sensor
light volume
*1
correction
Automatic print
head alignment
Manual print head
alignment
Grease application - At carriage unit replacement
Ink system
function check
LCD language
settings
Platen glass
protection sheet
(document
pressure sheet)
Timing
- At logic board replacement
- At logic board replacement
- At logic board replacement
- At ink absorber replacement
- At logic board replacement
- When the ink absorber
becomes full
- At paper feed motor
replacement
- At carriage unit replacement
- At logic board replacement
- At print head replacement
- At logic board replacement
- When print quality is not
satisfying
- At Easy-Scroll Wheel
replacement
- At logic board replacement
- At spur unit replacement
- At carriage unit replacement
- At logic board replacement
- At protection sheet
replacement
- At document bottom cover
replacement
Purpose
To initialize settings
To set destination.
To reset the ink absorber
counter.
To set the ink amount data in
the ink absorber to the ink
absorber counter.
To replace the ink absorber
with a new one.
To adjust the belt tension.
(Position the paper feed motor
so that the belt is stretched
tight.)
To correct the light volume for
the CD / DVD detection
sensor.
To secure the dot placement
accuracy.
To maintain sliding properties
of the carriage rail.
To maintain detection
functionality for presence of
the ink tanks and each ink tank
position.
To set the language to be
displayed on the LCD.
To maintain scanning
accuracy, hold the sheet with
the long side down, then fit its
upper left corner to the platen
1 / 54
TABLE OF CONTENTS
Tool
*2
1 min.
Service Tool
Perform in the service
mode.
*2
1 min.
Service Tool
Perform in the service
mode.
*2
1 min.
Service Tool
Perform in the service
mode.
*2
1 min.
Service Tool
Perform in the service
mode.
Screwdriver, a pair of 15 min.
tweezers, etc.
None. 5 min.
*2
5 min.
Service Tool
Perform in the service
mode.
None. 5 min.
Perform in the user
mode.
10 min.
FLOIL KG-107A 1 min.
*2
1 min.
Service Tool
Perform in the service
mode.
None. 1 min.
Perform in the user
mode.
None. 1 min.
Approx.
time