Quick Afta Service Check And Adjustment - IBM V03 Maintenance Information

Quick AFTA service check and adjustment

This "quick" AFTA service check can be used to verify the correct print gap on new printers and mechanisms NOT
yet disassembled. If a printer has been disassembled, the Power Off Check, should be used first to verify that all
the hardware is mounted and working correctly. The result of successful completion with this "quick" procedure will
be that when a 1-part paper is loaded:
1. For either the AFTA=0 or FIXED=1 modes, the AFTA wheel will go to the SAME position.
2. You will have verified good PQ along with good paper feeding and carriage motion.
3. The wheel position may NOT be on sector 1.
This "Quick" AFTA service check can replace these 3 AFTA service check sections:
v Power On Check
v Print quality check
v Gap check
But, if the result of the "Quick" AFTA service check is NOT good, you must go through the 4 sections of the
Standard AFTA service check and adjustment procedures (see Standard AFTA service check and adjustment) to
understand some problems. Follow these steps to perform the "Quick" AFTA service check:
1. Check that the print head is mounted securely with the socket head screw, star washer and thick flat washer.
Spares are available (5 sets) with P/N 02N7555.
2. Check the print needles. Clean the ink build-up from the white surfaces around the needles with a dry cloth or
toothbrush.
3. Check that the print head is installed squarely against both mount blocks in the carriage. It is not necessary to
overtighten the socket head screws.
4. First, determine estimate A by finding the AFTA wheel position number that lets 1-part paper slide between the
carriage and platen.
a. Setup: Remove the bail assembly. Using the AFTA wheel, open to the full open gap position. Using the
upper feed rollers, rotate until the WHITE dot on the left end of the platen is aligned with the frame WHITE
mark. Slide the carriage assembly to the AFTA position near the left end of the platen.
Chapter 5. Removals, service checks and adjustments
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