Exit Sensor Service Check; Input Sensor Service Check - Lexmark C522 Service Manual

5022-xxx
Step Questions / actions
6 Turn the printer off. Connect the JLVPS1 cable
to the system card. Remove one option/feature
at a time, and turn the printer on to isolate the
failing part.
Warning: Observe all the ESD precautions
(see "Handling ESD-sensitive parts" on
page 4-1) and turn the printer off before any
feature or option cards are removed or
replaced.
Is a failing part found?

Exit sensor service check

Step Questions / actions
1 Verify the paper is loaded properly in the
manual feed slot. See
multipurpose feeder or manual feeder" on
page 3-28.
Is the paper properly loaded in the manual
feed slot?
2 Is the exit sensor flag damaged?
3 Is the JFUSER1 properly connected to the
system card?
4 Place a voltmeter between the JFUSER1 pin 7
and ground. Initially, the meter should indicate
5 V dc. Activate the exit sensor flag.
Does the voltage drop to 0 V dc?

Input sensor service check

Step Questions / actions
1 Is the input sensor flag damaged?
2 Is the JTRAY cable connector properly
connected to the system card?
3 Place a voltmeter between JTRAY1 pin 2 and
ground. Initially, the meter should indicate
+5 V dc. Activate the input sensor flag.
Does the voltage drop to 0 V dc?
2-52
Service Manual
"Loading media in the
Yes
Replace the faulty part.
Yes
Go to step 2.
Replace the fuser. See
"Fuser removal" on
page 4-60.
Go to step 4.
Replace the system card.
See "System card
removal" on page 4-79.
Yes
Replace the paper pick
mechanism. See "Paper
pick mechanism assembly
removal" on page 4-68.
Go to step 3.
Replace the system card.
See "System card
removal" on page 4-79.
No
Contact your next level of
support.
No
Load paper in the manual
feed slot. See "Clearing
paper jams in the manual
feeder" on page 3-29.
Go to step 3.
Reseat the connector.
Replace the exit sensor.
No
Go to step 2.
Reseat the connector.
Replace the paper pick
mechanism. See "Paper
pick mechanism assembly
removal" on page 4-68.