3-1
3. Disassembly and Reassembly
3-1 General Precautions on Disassembly
When you disassemble and reassemble components, you must use extreme caution. The close proximity of
cables to moving parts makes proper routing a must. If components are removed, any cables disturbed by the
procedure must be restored as close as possible to their original positions. Before removing any component
from the machine, note the cable routing that will be affected.
Whenever servicing the machine, you must perform as follows:
1. Remove the paper cassette(s), and the print cartridge. Do not expose the cartridge to direct room light or sun
light, and be careful not to scratch the drum surface.
2. Turn the power switch off.
3. Unplug all the cables from the printer.
4. Replace with only an authorized component.
5. Do not force to open or fasten a plastic material component.
6. Be careful no obstacles are included when you reassemble components.
7. When you reassemble components, be careful small size components are located in place.
8. If you turn the machine over to replace some parts, toner or paper particles may contaminate the LSU window. Protect the LSU window with clean paper.
Releasing Plastic Latches
Many of the parts are held in place with plastic
latches. The latches break easily; release them carefully. To remove such parts, press the hook end of
the latch away from the part to which it is latched.
Disassembly and Reassembly
3-2
3-2 Transfer Roller
1. Open the printer cover.
3. Hold the cap at the both end of the roller, then
remove the roller.
2. Remove the cap.
Disassembly and Reassembly
3-3
3-3 Controller Board
1. Remove two screws and remove the controller
board.
2. Remove five screws securing the board and
unplug all connectors, and then take the controller board out of the printer.
Disassembly and Reassembly
3-4
3-4 Pickup Assembly
1. Remove four screws securing the pickup assembly.
2. Take the assembly out.
3. Check the pickup rubber wear. If the rubber is
heavily worn, replace it with a new one.
Squeeze this tab to
remove the rubber.
Push the solenoid if
you have difficulty to
remove the pickup
assembly.
Disassembly and Reassembly
3-5
3-5 Main Cover
1. Remove two screws and remove the controller
board.
2. Remove two screws at the back of the printer
and unplug one connector from the board, then
open the rear cover.
3. Open the printer cover, and open the MP tray.
Disassembly and Reassembly
3-6
4. Remove two screws securing the main cover. 6. Slide the main cover upward, out of the printer.
Note that the power
switch and the power
connecter are properly
released when you
remove the cover.
5. Unlatch the front ends of the cover.