Of1 Audible Noise Rap - Xerox phaser 3635 Service Manual

OF1 Audible Noise RAP

Use this RAP to isolate and identify the source of unusual noises.
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.
1. Ask the customer if there are any specific machine functions that are noisy.
2. Identify the source of the noise by exercising the machine in all modes.
3. Use diagnostics to run individual components.
4. Go to the relevant subsection:
• Main Drives and Paper Transport
• LSU
• DADF
• Tray 2
5. Refer to Possible Causes and Potential Solutions.
Main Drives and Paper Transport
• Enter dC330 code 04-100 to run the main BLDC motor. The following components will be
run.
– The print cartridge, PL 9.10 Item 1.
– The registration roll PL 8.25 Item 3.
– The registration roll idler PL 8.25 Item 17.
• While the main BLDC motor runs, stack the code 08-810 to energize the tray 1 pickup
solenoid and run the tray 1 pickup roll, PL 10.22 Item 14 and feed roll, PL 10.22 Item 9.
• While the main BLDC motor runs, stack the code 08-850 to energize the registration sole-
noid and run the registration roll, PL 8.25 Item 3 and registration roll idler, PL 8.25 Item
17.
• While the main BLDC motor runs, stack the code 08-800 to energize the bypass feed
solenoid and run the bypass pickup roll, PL 7.10 Item 28.
• Enter dC330 code 04-300 to run the duplex motor. The duplex rolls, PL 10.23 Item 13 and
PL 10.23 Item 14, will rotate.
• Enter dC330 code 04-200 to run the exit motor. The following fuser components will be
run:
– The heat roll in the fuser, PL 10.15 Item 1.
– The pressure rolls in the fuser, PL 10.15 Item 2 and PL 10.15 Item 3.
– Exit roll, PL 10.25 Item 22.
• Enter dC330 code 04-120 to run the main fan, PL 1.12 Item 9.
• Enter dC330 code 10-500 to run the fuser fan, PL 10.20 Item 2.
• Enter dC330 code 09-500 to run the SMPS fan, PL 1.12 Item 1.
LSU
• Enter dC330 code 06-100 to run the LSU motor.
DADF
• Enter dC330 code 05-200 to run the scan motor, PL 14.10 Item 10, in the DADF.
Draft 4
Phaser 3635MFP
The following components will be run:
– Scan roll, PL 5.35 Item 12.
– Exit roll, PL 10.25 Item 22.
• While the scan motor runs, stack the code 05-300 to energize the pickup solenoid and run
the DADF pickup roll assembly PL 5.25 Item 2.
• While the DADF scan motor runs, stack the code 05-310 to energize the registration sole-
noid and run the registration roll, PL 5.35 Item 9.
Tray 2
• Enter dC330 code 07-210 to run the tray 2 feed motor, PL 8.15 Item 23. The tray 2 feed
roll, PL 8.17 Item 12, will rotate.
• While the tray 2 feed motor runs, stack the code 08-820 to energise the tray 2 pickup
solenoid and run the tray 2 pickup roll assembly PL 8.17 Item 31.
Possible Causes and Potential Solutions
Go to the relevant procedure:
• Squeaks
• Unusual Noise from the Scanner Assembly
Squeaks
Possible causes are:
• Contamination of the bushes and drive shafts.
Solution:
– Clean the components.
– Plastic bushes should be cleaned and lubricated.
– Install new components as necessary.
• Bearings in cooling fans
Solution:
– Install new components as necessary.
• Mis-adjusted or worn drive belts.
Solution:
– Install new components as necessary.
• Mis-aligned or damaged parts.
Solution:
– Check for parts that are damaged or out of position.
– Adjust the components if appropriate.
– Install new components as necessary.
• Noise from the DADH input tray document guides.
Solution:
– Clean the DADH input tray in the area beneath the input guides.
Unusual Noise from the Scanner Assembly
Possible causes are:
• Mis-aligned or damaged parts.
• Defective motor driver.
Solution:
• Check the position of the scan motor and associated gears, PL 14.10.
• Ensure the CCD module, PL 14.10 Item 8, moves freely.
2-41
Status Indicator RAPs
OF1