Lexmark C77X, Service Manual

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Service Manual
5061
Envelopes do not feed from the tray or do not feed correctly
HCIT 2000-sheet option service check
HCIT system board LED error code table
If a failure is detected by the system board, an error code may be displayed. If the system board LED is on solid,
the HCIT detects that the tray or side door is not closed.
The LED on the system board may blink. Count the number of times the LED blinks and use the following table
to determine the problem.
Step Actions and questions Yes No
1 Check the envelope feeder tray to make sure it is
installed correctly.
Is the tray installed correctly?
Go to step 2 Install the tray
correctly.
2
Check the tray to make sure it has been set up
correctly for the size of envelopes being used.
Has the tray been set up correctly?
Go to step 3 Set the tray up
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?
Replace the
envelope feeder
tray. Replace the
envelope feeder
option.
LED blinks Problem
1 Jam at registration sensor S2
2 Jam before the leading edge of the paper reaches the registration sensor S2
3 Paper jam is still detected in the HCIT after removing the jam
4 Paper jam is still detected even with front of jam door closed
5 Paper jam detected at pick sensor
6 Error detected with the tray
7 Error detected at the registration roller home position
8 Error detected at the pick roller home position sensor (S1)
9 Error detected with the lift motor—no motor lock or loss of lock
10 Not used
11 Communication error
12 Other error—Failure of the adjustment of the mirror reflection sensors or EEPROM
initialization