377-131

[Reeves]

I have a Xerox we 7535 its working okey single side but double sided its jamming in the duplex I checked the duplex drive motor in diagnostic mode the motor is not working I replaced wit a new motor the problem is still there what could be the problem please advise

[Phil B.]

I have a Xerox we 7535 its working okey single side but double sided its jamming in the duplex I checked the duplex drive motor in diagnostic mode the motor is not working I replaced wit a new motor the problem is still there what could be the problem please advise

if it's not the motor .. check the cable for kinks cuts.. then it would be a driver board

[shaahin]

Check the following:

• A paper transportation failure due to a foreign substance/burr on the paper path
  
• Each Duplex Roll and Pinch Roll for contamination, wear, and revolution failure
  
• Each Exit Roll and Pinch Roll for contamination, wear, and revolution failure
  
• Each Duplex Roll Drive Gear for wear and damage
  
• Each Exit Roll Drive Gear for wear and damage
  
• The Exit 2 Gate for operation failure
  
• Use of paper out of spec (Refer to the spec in Chapter 6 General)
  
• The Duplex Wait Sensor for contamination, improper installation, and Actuator operation failure
  
• The Duplex Wait Sensor for failure: DC330 [077-108] ( PL 14.5)
  
• The connection between the Duplex Wait Sensor J175 and the MD PWB J523 for open circuit, short circuit, and poor contact
  
• The Duplex Motor for revolution failure: DC330 [077-073] ( PL 14.5)
  
• The Exit 2 Drive Motor for revolution failure: DC330 [077-062] ( PL 17.4)
  
• The Exit 2 Gate Solenoid for failure: DC330 [077-003] ( PL 17.5)

If no problems are found, replace the following parts in sequence:

• MD PWB (7525/30/35) ( PL 18.2A)
  
• MD PWB (7545/56) ( PL 18.2B)
  
• MCU PWB (7525/30/35) ( PL 18.2A)
  
• MCU PWB (7545/56) ( PL 18.2B)