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Diagnostic Information 2-21
24xx
No Print or Abnormal Print Service Check
Operator Panel Service Check
If the operator panel is locked, only the Start/Stop, FormFeed, Tear
Off and Load/UnLoad buttons are active. 24xx printers have a
Padlock LED to indicate that the operator panel is locked. To lock or
unlock the operator panel, turn the printer off and while holding the
Load/Unload and Tractor buttons, turn the printer on.
FRU/Function Action
1 Logic Board If the print test does not complete correctly,
replace the logic board and reset the
bidirectional print adjustment. See
“Bidirectional Print Adjustment” on
page 4-4.
2 Interface Cable Check the connection and continuity of the
interface cable.
3 Emulation Mode Enter the Setup Menu and be sure the printer
is in the correct emulation mode for the
computer, either IBM or Epson. Go to “Setup
Mode” on page 1-2.
FRU Action
1 Operator Panel
Cable
Disconnect the operator panel cable from the
operator panel and the logic board, and verify
continuity of the operator panel cable.
Connect the operator panel to the logic board
and be sure +5 V dc is present at connectors
CN13-1 and CN13-3.
Replace the operator panel cable, or the power
cable, as necessary.
2 Operator Panel If the problem remains, replace the operator
panel.