April 2010
2-48
Phaser 3635MFP/WorkCentre 3550
OF1
Status Indicator RAPs
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.
• Install new components as necessary, PL 14.10.
Grinding Noise from the Fuser Assembly
Possible causes are:
• Defective thermistor.
• Poor crimp and weld quality between the wire and thermistor terminal.
• Bonding of the fuser assembly heat and pressure rollers, PL 10.15.
Solution:
• Check the wiring and connection to the thermistor, PL 10.12 Item 16.
• Install new components as necessary, Fuser assembly, PL 10.10 Item 1, Thermistor PL
10.12 Item 16.
3550 Checkout
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. Where possible 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 Component Control 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.
• Enter dC330 Component Control 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 Component Control 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 Component Control code 10-500 to run the fuser fan, PL 10.20 Item 2.
• Enter dC330 Component Control code 09-500 to run the SMPS fan, PL 1.12 Item 1.
LSU
• Enter dC330 Component Control code 06-100 to run the LSU motor.
DADF
• Enter dC330 Component Control code 05-200 to run the DADF scan motor, PL 5.40 Item 2.
The following components will be run:
– Scan roll, PL 5.35 Item 12.
– Exit roll, PL 5.35 Item 8.
Tray 2
• Enter dC330 Component Control 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.
Possible Causes and Potential Solutions
Go to the relevant procedure:
• Squeaks
• Unusual Noise from the Scanner Assembly
• Grinding Noise from the Fuser Assembly
Squeaks
Possible causes are:
• Contamination of the bushings and drive shafts.
Solution:
– Clean the components.
– Plastic bushings should be cleaned and lubricated with compatible grease.
– 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 14.11.
• Ensure the CCD module, PL 14.11 Item 2, moves freely.
• Install new components as necessary, PL 14.11.
Grinding Noise from the Fuser Assembly
Possible causes are:
• Defective thermistor.
• Poor crimp and weld quality between the wire and thermistor terminal.
• Bonding of the fuser assembly heat and pressure rollers, PL 10.15.
Solution:
• Check the wiring and connection to the thermistor, PL 10.12 Item 16.
• Install new components as necessary, Fuser assembly, PL 10.10 Item 1, Thermistor PL
10.12 Item 16.
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