Lexmark 2380 - Forms Printer B/W Dot-matrix, Service Manual

Page: 51 / 204

Diagnostic Information 2-27
Paper Feed Service Check
Note: If the problem is frequent jams or paper creases, verify that
the paper is neither very thick nor very thin. If necessary refer the
customer to the User’s Guide for specifications of acceptable
papers. On 23XX-001 printers check for equal gap between the
lower feed rollers and lower pinch rollers. If the gap is smaller on the
left, install Shim Kit, P/N 1368067.
If the paper does not stop in the correct location, refer to the “Paper
Empty Sensor Service Check” on page 2-26 and the “Top of Forms
Problem Service Check” on page 2-39 .
FRU / Symptom Action
1 Auto Sheet
Feeder If the Auto Sheet Feeder is installed, remove it.
Enter the Setup Menu and reset “ASF” to off.
Verify that the machine works correctly without
the ASF installed.
If the printer fails only with the Auto Sheet
Feeder installed, refer to the
“Auto Sheet
Feeder (ASF) Service Check” on page 2-15 .
2 Gear Train Remove all paper from the machine.
Press Form Feed several times and examine
all rotating parts to find the problem.
For better visibility, remove the covers and
reconnect the operator panel to the sub logic
board.
The upper and lower feed rollers and the upper
and lower pinch rollers should all be clean and
in good condition, and should all rotate during
Form Feed.
To turn the gear train manually on a 23XX-002
or 23XX-003, turn the right end of the lower
feed roller shaft with a 6 mm wrench.
23xx.bk Page 27 Wednesday, March 13, 2002 10:42 AM