Dell 2135cn Service Manual page 430

Step
Checking the PHD UNIT for connection
Remove the PHD UNIT.
Are five HV terminals on the PHD UNIT, and five springs on
the frame (PL4.1.10 and PL4.1.15 to 18) dirty and/or
deformed?
12
Checking after reseating the PHD UNIT
13 Reseat the PHD UNIT.
Is the image printed correctly?
Checking after reseating TONER CARTRIDGEs (Y/M/C/K)
Reseat the TONER CARTRIDGEs (Y/M/C/K), and check
14
that their lock keys are in the lock positions.
Is the image printed correctly?
Checking the ROS ASSY for connection
Check the connections between the ROS ASSY and PWBA
MCU.
Are P/J40, P/J 41, P/J411 and P/J 412 connected correctly?
15
16 Is the image printed correctly?
Checking after reseating the PWBA MCU
17 Reseat the PWBA MCU.
Is the image printed correctly?
Checking after reseating the PWBA CONT AIO
18 Reseat the PWBA CONT AIO.
Is the image printed correctly?
Checking after reseating the TRANSFER ASSY
19 Reseat the TRANSFER ASSY.
Is the image printed correctly?
Version 1 2008.02.01
Check
1 - 402
Chapter 1 Troubleshooting
Remedy
Yes
Clean and/or
replace the PHD
Go to step 13.
UNIT or
SPRING(s).
End of work. Go to step 14.
End of work. Go to step 15.
Reconnect the
connector(s) P/
J40, P/J41, P/J411
Go to step 17.
and/or P/J412
surely, then go to
step 16.
End of work. Go to step 17.
End of work. Go to step 18.
End of work. Go to step 19.
End of work. Go to step 20.
No