No Print Or Abnormal Print Service Check - Lexmark 4227 - Forms Printer B/W Dot-matrix Service Manual

4227-300

No print or abnormal print service check

FRU/Function
1 Carrier
2 Configuration
3 Main Logic Board
Action
If the carrier moves, but nothing is printed, go
"Print wire drive failure service
to the
check" on page 2-28
Enter the user menus and be sure the correct
emulation (IBM/EPSON) and interface
(parallel/serial) are selected.
If the printer is serially attached, be sure the
RS232/RS422 switch is in the correct position,
and the host communications parameters are
correct.
If the Print Test does not print, or prints
incorrectly, do the following:
• Replace the main logic board.
"Bidirectional print
• Perform the
adjustment" on page 4-3
"Printhead-to-platen gap adjustment" on
page 4-2
.
.
and the
Diagnostic information
2-19