IBM V03 Maintenance Information page 155

b. With the mechanical stop at the left end of the carriage shaft resting against the frame, the pointer of the
wheel should be in the range of 3 to 4 numbers higher than 6 (at about 9 or 10). This approximate setting
will vary from printer to printer.
If it is not in this range:
1) Loosen the 2 screws that hold the wheel.
2) Pull the gear away from the intermediate gear.
3) Move only the wheel to align the pointer with a number in the range of 9 to 10.
5. Verify that the printhead mounting screws are tight, and that the printhead is seated correctly. If the printer had
056 errors, or printhead has been hitting the side wall of the printer:
a. Inspect the 2 printhead screws and 2 washers for damage. Replace any damaged screw or washer.
b. Loosen the 2 printhead screws.
c. Hold the printhead toward the platen.
d. Tighten both screws.
6. Inspect the printhead cable for damage and a poor connection at the printhead. Replace the cable, if
indicated.
Power On Check: Perform this check only after completing the Power Off Check.
Note: To view the AFTA wheel as described in the following procedure, open the top cover and place a magnet
on the upper left corner of the operator panel to disable the cover interlock.
Verify AFTA operation, using single-part forms
1. Turn on the printer.
2. Set the AFTA menu item to AFTA=0. This invokes the microcode to use the needle #5B, and invokes the AFTA
motor and the internal logic to detect the thickness of the forms that are positioned against the platen.
3. Load a single sheet of 20 lb (80 g/m
paper might measure as little as 0.09 mm (0.0038 in.) thick].
Note: If the printer displays a 055 AFTA ERROR, there may be a problem with printhead needle #5B. See
T&D08 in T&D08—AFTA calibrate test to investigate the AFTA ERROR.
2
) paper. This paper is about 0.1 mm (0.004 in.) thick [occasionally, 20 lb
Chapter 5. Removals, service checks and adjustments
155