Lexmark C522 - Page 73

Diagnostic information 2-41
5022-xxx
920.09-12—POST (power on self test) error service check
3
Check for the following continuity between the
DC autoconnect and FUSER1.
Is continuity present?
Go to step 4. Replace the DC fuser cable.
4
Replace the fuser. See “Fuser removal” on
page 4-60.
Does the error clear?
Problem solved. Replace the system card.
See “System card
removal” on page 4-79.
Step Questions / actions Yes No
1 Turn the printer off, and remove the rear cover.
Check the connector JHVPS1 for proper
connection to the system card, the cable for
pinch points, and the cable or connector for
any other damage.
Is the cable damaged?
Replace the top access
cover assembly. See “Top
access cover assembly
removal—model C52x
only” on page 4-28 or “Top
access cover assembly
removal—model C53x
only” on page 4-32.
Go to step 2.
2
Remove the left cover. See “Left cover
removal” on page 4-20. Check all the toner
level sensor cables connected to the rear of
the HVPS for proper connection to HVPS, the
cable for pinch points, and the cable or
connector for any other damage.
Are any of the cables damaged?
Replace the damaged
sensor. See “Toner level
sensor removal” on
page 4-83.
Go to step 3.
3
Disconnect JHVPS1 from the system card and
the HVPS. Check for the following continuity.
Is continuity present?
Go to step 4. Replace the top access
cover assembly. See “Top
access cover assembly
removal—model C52x
only” on page 4-28 or “Top
access cover assembly
removal—model C53x
only” on page 4-32.
Step Questions / actions Yes No
1
2
3
468
579
10
pin 1
pin 6
pin 10
pin 8
Pin
configuration
pin 8
DC autoconnect JFUSER1
DC autoconnect JFUSER1
Pin 6 Pin 6
Pin 7 Pin 7
Pin 8 Pin 8
JHVPS1 cable HVPS end System card end
Pin 14 Pin 14