IBM 4247-V03, Maintenance Information

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4. Verify that under AFTA motor control, the wheel turns clockwise to the full-open position (near the 9 to 10
mark) and counterclockwise to the full-close position (near the 0 to 2 mark).
5. Park and reload the forms a few times to verify that the wheel position is repeatable.
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If the wheel does not rotate, turn off the printer and check the AFTA motor connections, the AFTA motor,
and the logic board.
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If the printer displays the 055 AFTA ERROR message, the AFTA #5B measurement needle is faulty.
Replace the printhead.
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If the wheel does not move to the full-open position, then to the full-close position, turn off the printer and
check for binds in the AFTA mechanism.
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When the wheel will move repeatedly to full-open and back to the same position, note for later use the
closed-position number (near the 0 to 2 mark). For later discussion, identify that number as A.
Verify AFTA calibration using thicker or multiple-part forms
1. Park single-part forms.
2. Set the operator panel menu item AFTA=0.
3. With loose forms, back fold the beginning of the forms along a left-to-right perforation.
4. Mount these forms onto the tractor pins. The printer now has a combined paper thickness of approximately 0.2
mm (0.008 in.).
5. Perform a Load operation on this double-thickness of forms. After performing a Load, the wheel should
repeatedly go to a numeral that is 1 greater (± 0.25 on the wheel) than the number A you recorded at the end
of step 5 of Verify AFTA operation, using single-part forms. Based on the results you get:
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If the number is not increasing, perform T&D08, then return to Verify AFTA calibration using single-part
forms.
- or -
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If the number is increasing, remove the wheel and align the pointer to 2. Return to Verify AFTA calibration
using single-part forms.
6. Run T&D08 If you need additional information about running this T&D (see T&D08—AFTA calibrate test), and
then return here to complete this procedure. Set the T&D08 value to 0 and STORE.
7. After running T&D08, go to Verify AFTA calibration using single-part forms.
Chapter 5. Removals, service checks and adjustments
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