IBM 4247 Maintenance Information page 111

Table 15. MAP 0190: Forms Feed Problems (continued)
Step Questions/Actions
Check that the bellcrank is correctly moving the lower
14.
pinch rollers up and down.
Check the parts at the left end of the platen. The
bellcrank must be positioned between the gear and the
washer. See step 33 on page 122.
Is the bellcrank installed correctly and functioning
correctly?
Run T&D 14 to find out the microcode levels in the
15.
printer. The controller code levels must be at least at the
levels indicated to have the latest path switch
algorithms:
A00 - 3.01
001 - 4.00
002 - 3.00
003 - N/A
Is the code level at or above these minimums?
Yes
Go to step 15.
Go to step 17 on page 112.
No
Repair, as needed.
Run T&D 11 to perform a correct
calibration of the rear path
sensor.
Run T&D in automatic test mode
to verify correct printer operation.
For Model A00, see "How To Run
the Test and Diagnostic (T&D)
Programs" on page 161. For
Models 001, 002, or 003, see
"How To Run the Test and
Diagnostic (T&D) Programs" on
page 201.
Install the newest level
microcode. Be sure you follow
the directions in the Microcode
Installation Instruction so that the
user's configuration is not lost.
Chapter 1. Diagnosing Problems
111