Service manual

REPAIR
SERVICE MANUAL
Mechanical
4-29
5.1. Removing the Printer Assembly
(1) Remove the upper cover assembly.
See steps (1) to (5) in 1.1.1 "Removing the Upper Cover".
(2) Unplug the six connectors from the main PCB.
Unplug the connectors of the following cables and harnesses:
1) Two flat cables (to carriage)
2) Leaf switch harness
3) PE sensor harness
4) PF motor harness
5) CA motor harness
NOTE:
•
Remove harnesses 2), 3), and 4) from the harness retainers in the bottom cover.
(3) Remove the two screws from the middle of the printer assembly.
(4) Push the bottom cover outward above each catch in turn(each catch holds a
projection from both sides of the PF base assembly) and lift the printer assembly
from the PF base assembly supports in the bottom cover.
5.2. Installing the Printer Assembly
(1) Slide the rear of the printer assembly into the catches in the bottom cover while
holding harnesses 3) and 4) in the groove in the PF unit. Then, place the front of
the printer assembly on the alignment posts in the bottom cover, push down on the
printer assembly and snap the projections in the PF base assembly in place.
(2) Connect the six connectors to the main PCB and run the harnesses 2), 3), and 4)
through the retainers in the bottom cover.
(3) Secure the printer assembly in the bottom cover by tightening the two screws at the
middle of the printer assembly.
(4) Install the upper cover assembly.
See steps (2) to (6) in 1.1.2 "Installing the Upper Cover".