Lexmark X502N - Faxing; Sending Faxes

Diagnostic information 2-23
7100-XXX
High voltage power supply (HVPS) service check
Low voltage power supply (LVPS) service check
Step Questions / actions Yes No
1 Remove photodeveloper cartridge,
and ensure charging unit on bottom
of photodeveloper cartridge is not
damaged. Is charging unit
damaged?
Replace photodeveloper
cartridge. See
“Photodeveloper cartridge
removal” on page 4-8.
Note: photodeveloper
cartridge is a customer-
ordered part.
Go to step 2.
2 Check charging unit high voltage
contacts in printer. Are they clean?
Go to step 3. Clean contacts. If problem
persists, go to step 3.
3 Replace photodeveloper cartridge.
See “Photodeveloper cartridge
removal” on page 4-8. Has error
cleared?
Note: photodeveloper cartridge is a
customer-ordered part.
Problem solved. Go to step 4.
4 Check cable for continuity between
engine controller board connector
HVCN and HVPS BCN1 connector
and for shorted pins. Is cable okay?
Go to step 5. Replace cable.
5 Replace HVPS. See “High voltage
power supply (HVPS) removal” on
page 4-39. Has error cleared?
Problem solved. Go to step 6.
6 Replace engine controller board.
See “Engine controller board
removal” on page 4-34. Has error
cleared?
Problem solved. Contact higher level support.
Step Questions / actions Yes No
1 Check cable for continuity between engine
controller board connector LVCN and LVPS
ACN4 connector. Also check for shorted
pins. Is cable okay?
Go to step 2. Replace cable.
2 Replace LVPS. See “Low voltage power
supply (LVPS) with cage removal” on
page 4-40. Does problem persist?
Go to step 3. Problem solved.
3 Replace engine controller board. See
“Engine controller board removal” on
page 4-34. Does problem persist?
Contact higher level
support.
Problem solved.