IBM 4247 Maintenance Information page 151

Description of Failure
Ribbon life failures.
Ribbon feed or lift failure.
Loud noise during sensor tuning.
Fanfold stacking problems.
Forms damage at perforations of multiple-part forms or heavy
stock.
Forms damage.
Customer cannot remove the ASF electronics card cover.
Unable to select automatic sheet feeder path from operator
panel.
Automatic sheet feeder (ASF) failure from 1 or more bins.
Paper feeds from the wrong ASF bin.
Action
See "MAP 0160: Ribbon Feed and Ribbon Lift" on page 89.
See "MAP 0160: Ribbon Feed and Ribbon Lift" on page 89.
Run T&D11 (Pinch Roller Status).
For Model A00, see "How To Run the Test and Diagnostic (T&D)
Programs" on page 161.
For Models 001, 002, and 003, see "How To Run the Test and
Diagnostic (T&D) Programs" on page 201.
1. See "Main Paper Drive Check and Adjustment" on page 301.
2. See "Tractor Assembly Service Check" on page 325.
3. See "Printhead Drive Service Check" on page 333.
1. Use Perforation Safety feature. Refer to a 4247 User's
Guide.
2. See "Main Paper Drive Check and Adjustment" on page 301.
3. See "Tractor Assembly Service Check" on page 325.
4. See "Printhead Drive Service Check" on page 333.
1. See "Main Paper Drive Check and Adjustment" on page 301.
2. See "Tractor Assembly Service Check" on page 325.
3. See "Printhead Drive Service Check" on page 333.
1. Using a flat-bladed screwdriver, pry off the electronics card
cover.
2. Using a file, increase the width by approximately 3 mm (0.12
in.) (across the short dimension) of the slot in the electronics
card. This is the slot into which the bottom metal tab must fit.
See "MAP 0110: Automatic Sheet Feeder" on page 26.
See "MAP 0110: Automatic Sheet Feeder" on page 26.
See "MAP 0110: Automatic Sheet Feeder" on page 26.
Chapter 1. Diagnosing Problems
151