IBM 4247-V03, Maintenance Information

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Table 16. Error messages (continued)
Message Description Action
JUMPER AND KEYS Manufacturing use only. 1. Remove the jumper from the bottom of
the operator panel.
2. Install a new operator panel (see
Operator panel).
3. Install a new operator panel cable.
4. Install a new logic board (see Logic
board).
Reference table 2, no printed characters
Failure: No printed characters appear Action
No print from any source (host or print test). If there is no carriage motion:
v
See MAP 0140: Printhead drive.
v
See MAP 0150: Power supply.
If there is carriage motion:
1. Check that the ribbon is seated correctly.
2. See Standard AFTA service check and adjustment.
3. See MAP 0160: Ribbon feed and ribbon lift.
No print from serial, parallel, or both attachments, but print test is
OK. See MAP 0120: Parallel or serial attachment.
No print from parallel with coax, twinax, or parallel attachments,
but printer demonstration is OK. See MAP 0121: Parallel with twinax or coax attachments.
No print from network print server attachment, but printer
demonstration is OK. See MAP 0123: External network print server attachment.
No print from LAN attachment, but printer demonstration is OK. See MAP 0122: LAN attachment card.
Print test starts to print one line, then printer hangs. See MAP 0140: Printhead drive.
Chapter 1. Diagnosing problems
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