Sub Logic Board Removal - Lexmark 4227-100 Service Manual

4227-100
Reassembly:
1. Remove the paper separator while first installing the side frame
loosely. Be sure the lower pinch roller spring is above the
bushing.
2. Remove the screw from the right end of the paper separator.
3. Install the left end of the paper separator first, then bend the
right side frame slightly to get the right end installed.
4. Reinstall the separator screw through the hole above the slider
cam.
5. Set the printhead to platen gap.

Sub Logic Board Removal

1. Remove the top cover.
See "Top Cover Removal" on page
2. Disconnect the power connector and the signal connector from
the sub logic board.
3. Remove the three screws.
4. Disconnect the printhead cables and remove the sub logic
board.
Reinstallation: For ease of reassembly, remove the flexible signal
cable from the main logic board and connect it to the sub logic board
before reinstalling the sub logic board. Remember to reconnect the
ground lead to the bottom mounting screw.
4-37.
Repair Information 4-36