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Specifications
2-4
Service Manual
Disassembly and Reassembly
3
3. Disassembly and Reassembly
3.1 General Precautions on Disassembly
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.
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. Check to verify that documents are not stored in memory. 2. Be sure to remove the toner cartridge before you disassemble parts. 3. Unplug the power cord. 4. Use a flat and clean surface. 5. Replace only with authorized components. 6. Do not force plastic-material components. 7. Make sure all components are in their proper position.
Service Manual
3-1
Disassembly and Reassembly
3.2 Top Cover
1. Pull the Cassette out of the printer. 4. Unlatch the front ends of the Top Cover.
Cassette
2. Remove the Front Cover in the direction of arrow.
5. Remove the Top Cover in the direction of arrow.
Top Cover
Front Cover
3. Remove four screws.
6. Remove the Rear Cover from the Top Cover.
Rear Cover
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Service Manual
Disassembly and Reassembly
3.3 Fuser
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) 2. Unplug two connectors(Block) from the boards, then remove four screws. 5. Remove one screw and take the Idle Gear out.
Idle Gear
Fuser Ass'y
6. Remove four screws and divide the Fuser into two parts
Fuser Cover
3. Remove two screws and take the Thermostat out of the Fuser.
Thermostat
4. Remove two screws and take the Halogen Lamp out of the Heat Roller.
Heat Roller
7. Remove the Thermister from the Fuser Cover.
Thermister
Halogen Lamp
Service Manual
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Disassembly and Reassembly
3.4 Exit Roller
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) 2.Remove the Exit Gear, Bearing and Exit Roller.
1 2 Exit Gear Bearing Exit Roller
3.5 LSU
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) 2. Remove two screws and unplug one connector from the Frame. 4. Unplug two connector from the LSU
5. Unplug four screws and take the LSU out.
LSU
3. Remove the LED PBA Ass'y as shown below.
LED PBA Cover
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Service Manual
Disassembly and Reassembly
3.6 Fan
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) 2. Unplug the connector from the SMPS and remove the one screw. Then take out the Fan.
DC Fan
3.7 Driver Ass'y
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) 2. Remove the six screws from the Drive Ass'y. 3. Unplug one connector from the Driver Ass'y
Drive Ass'y
Service Manual
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Disassembly and Reassembly
3.8 Engine Shield Ass'y
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Fuser Connector(see page 3-3) 2. Remove the fourteen screws securing from the Engine Shield Ass'y and unplug the all connectors. Then take the Engine Shield Ass'y.
Engine Shield Ass'y
3.9 Main PBA
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Engine Shield Ass'y(see page 3-6) 2. Unplug one connector and remove five screws from the Main PBA. Then lift the Main PBA out, as shown below.
Main PBA
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Service Manual
Disassembly and Reassembly
3.10 SMPS
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Engine Shield Ass'y(see page 3-6) 2. Unplug one connector and remove three screws then take the Inlet Ass'y out.
Inlet Bracket
3. Remove one screw and unplug one connector from the Main PBA.
4. Remove three screws and take The SMPS out.
SMPS
Service Manual
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Disassembly and Reassembly
3.11 Transfer Roller
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - LSU(see page 3-4) 2. Remove three screws and take the Transfer Earth out. 3. Unplug the PTL Holder Connector, then remove the PTL Holder and PTL Lens, as shown below.
PTL Holder PTL Lens
Transfer Earth
4. Unlatch the Bush and remove it. Then lift the Transfer Roller out, as shown below.
Transfer Roller Bush
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Service Manual
Disassembly and Reassembly
3.12 Feed Roller
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Drive Ass'y(see page 3-5) 2. Pull up the Feed Idle Bush and Feed Idle Shaft, as shown below.
Feed Idle Shaft Bush
5. Remove the Feed Gear 1 Ass'y, as shown below.
Feed Gear1 Ass'y
6. Remove the Feed Roller and Feed Roller 1, as shown below.
3. Remove three screws from the Feed Bracket and take it out.
Feed Bracket
Feed Roller
Feed Roller1
4. Remove the Idle Gear and Feed Gear2.
Feed Gear2
Idle Gear
Service Manual
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Disassembly and Reassembly
3.13 Pick Up Roller
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Drive Ass'y(see page 3-5) - Engine Shield Ass'y(see page 3-6) 2. Remove the Pick up Gear Ass'y, as shown below. 3. Remove the Pick up Ass'y, as shown below.
Pick up Gear Ass'y
Bush
1 2
Pick up Ass'y
3.14 Solenoid
1. Before you remove the Fuser, you should remove: - Top Cover(see page 3-2) - Drive Ass'y(see page 3-5) - Engine Shield Ass'y(see page 3-6) - Pick Up Roller(see page 3-10) 2. Remove two screw then remove The Manual Solenoid and Pick Up Solenoid.
(Pick up) Solenoid (Manual) Solenoid
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Service Manual