IBM 4247-V03, Информация по обслуживанию

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Table 10. MAP 0140: Printhead drive
Step Questions/Actions Yes No
1.
The ribbon lift bar, lift bracket, and ribbon guide are part of
the ribbon assembly. These parts can cause printhead drive
problems
Remove the ribbon.
Print a print test, see Printing the printer demonstration, and
repeat the test at least 5 times (10 pages).
Was the printhead drive OK during the print test?
The problem may have been
caused by a ribbon cartridge
that was not correctly
installed.
Go to step 2.
Go to step 2.
2.
Turn off the printer.
Perform the printhead drive service check (see Printhead
drive service check).
Is the service check OK?
Go to step 3. Repair as needed.
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs).
3.
When the print wires are too close to the platen, they can
cause printhead drive problems.
Perform the AFTA service check (see Standard AFTA service
check and adjustment).
Is the AFTA service check OK?
Go to step 4. Repair as needed.
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs).
4.
Put the covers in the service position (see Service position).
Disconnect the carriage motor connector from the logic
board.
See “Carriage motor wiring” on page 137 to measure the
resistance of the motor windings.
Is the measurement correct for each winding?
Go to step 5. Install a new carriage motor
(see Carriage drive motor
assembly and fan).
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs).
Chapter 1. Diagnosing problems
49