April 2010
2-50
Phaser 3635MFP/WorkCentre 3550
OF3
Status Indicator RAPs
OF3 Air Systems RAP
Use this RAP to diagnose faulty machine fans. Faulty fans can cause image quality defects,
odors or overheating.
Procedure
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
Go to the relevant procedure:
• 3635 Checkout
• 3550 Checkout
3635 Checkout
Check the following fans:
• SMPS Fan
• Main Fan
• Fuser Fan
SMPS Fan
Refer to Wiring Diagram 9 (3635). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Enter dC330 Component Control code 09-500. Check that the SMPS fan, PL 1.12 Item 1
runs at normal speed.
3. Check the wiring between the SMPS fan and CN8 on the Connection PWB.
4. Install new components as necessary:
• SMPS fan, PL 1.12 Item 1.
• Connection PWB, PL 3.10 Item 17.
Main Fan
Refer to Wiring Diagram 9 (3635). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Enter dC330 Component Control code 04-120. Check that the main fan, PL 1.12 Item 9
runs at normal speed.
3. Check the wiring between the main fan and CN1 on the Connection PWB.
4. Install new components as necessary:
• Main fan, PL 1.12 Item 9.
• Connection PWB, PL 3.10 Item 17.
Fuser Fan
Refer to Wiring Diagram 9 (3635). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Enter dC330 Component Control code 10-500. Check that the fuser fan, PL 10.20 Item 2
runs at normal speed.
3. Check the wiring between the fuser fan and CN2 on the Connection PWB.
4. Install new components as necessary:
• Fuser fan, PL 10.20 Item 2.
• Connection PWB, PL 3.10 Item 17.
3550 Checkout
Check the following fans:
• SMPS Fan
• Main Fan
• Fuser Fan
SMPS Fan
Refer to Wiring Diagram 17 (3550). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Enter dC330 Component Control code 09-500. Check that the SMPS fan, PL 1.12 Item 1
runs at normal speed.
3. Check the wiring between the SMPS fan and CN3 on the Connection PWB.
4. Install new components as necessary:
• SMPS fan, PL 1.12 Item 1.
• Connection PWB, PL 3.10 Item 17.
Main Fan
Refer to Wiring Diagram 17 (3550). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Check that the main fan, PL 1.12 Item 9 runs at normal speed.
3. Check the wiring between the main fan and CN4 on the Connection PWB.
4. Install new components as necessary:
• Main fan, PL 1.12 Item 9.
• Connection PWB, PL 3.10 Item 17.
Fuser Fan
Refer to Wiring Diagram 17 (3550). Perform the following:
1. Switch off the machine, then switch on the machine.
2. Enter dC330 Component Control code 10-500. Check that the fuser fan, PL 10.20 Item 2
runs at normal speed.
3. Check the wiring between the fuser fan and CN5 on the Connection PWB.
4. Install new components as necessary:
• Fuser fan, PL 10.20 Item 2.
• Connection PWB, PL 3.10 Item 17.
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