Canon SmartBase MPC400 Service Manual page 63

SmartBase MPC600F/MPC400 Chapter 3: Assembly and Disassembly
Disassembly 7. Contact sensor
(1) Perform Disassembly 3 to remove the flatbed ass'y.
(2) Remove the 2 screws (a).
(3) Free the claw (b), and detach the scanner cover. At this time, take care not to drop the document glass.
(4) Remove 2 spring plates, and detach the document glass.
(5) Remove the flat cable stopper (c).
(6) Remove the contact sensor from the contact sensor holder. At this time, take care not to lose the
spacer.
Handling the contact sensor
Be careful not to scratch or soil the glass surface of the contact sensor. Any such
scratches or dirty marks may lead to image defects, such as vertical streaks, etc., on the
scanned image.
Caution when replacing the contact sensor
When replacing the contact sensor, the CS LED light-on duration needs to be adjusted.
Refer to page 4-6, 3.1 CS LED Lights-on Duration Adjustment, for details.
Document glass
Contact sensor
Contact sensor holder
b
Spring plate
Spacer
Spacer
Figure 3-13 Disassembly 7
3-15
a
Scanner cover
b
Spring plate
c