Lexmark C752 Service Manual page 147

Step Action and questions
4 Check for the correct installation of the lower options
autoconnect cable for the system board connector J37.
Is the cable installed correctly?
5 Autoconnect cable - Check the autoconnect from the
printer or option installed above the envelope feeder.
Check for cuts, pinched wiring, or damage to the
contacts in the connector.
6 Disconnect the autoconnect cable from J37 on the
printer system board. Measure the voltages on J37, the
voltages are approximate values and should measure:
Connector pin Voltage
J37-1 +24 V dc
J37-2 Ground
J37-4 +5 V dc
J37-5 +5 V dc
J37-7 +5 V dc
J37-8 +5 V dc
Are the voltages correct?
Check continuity of the autoconnect cable.
7
Is there continuity?
Envelopes do not feed from the tray or do not feed correctly
Step Action and questions
1 Check the envelope feeder tray to make sure it is
installed correctly.
Is the tray installed correctly?
2 Check the tray to make sure it has been setup correctly
for the size of envelopes being used.
Has the tray been setup correctly?
3 Check the tray for any signs of broken or damaged
parts.
Are there any signs of damage to the tray or parts in
the tray?
Yes No
Go to step 5 Install the cable
correctly and
recheck
performance
Go to the service Replace the
check for the envelope feeder
option mounted
above the
envelope feeder
Go to step 7 Replace the
system board
Replace the Replace the
envelope feeder autoconnect
option cable
Yes No
Go to step 2 Install the tray
correctly
Go to step 3 Set the tray up
correctly
Replace the Replace the
envelope feeder envelope feeder
tray option
Diagnostic information
5060-2XX
2-113