IBM 4247

Print Quality Failures (Darkness, Location, Quality) Action
Character or line spacing uneven or overprinting. 1. See “Main Paper Drive Check and Adjustment” on page 301
and check the separate path in use. See “Individual Forms
Paths Checks” on page 310.
2. See “Printhead Drive Service Check” on page 333.
Multiple-part form copies too light or missing dots. 1. See “Standard AFTA Service Check and Adjustment” on
page 285.
2. See “Print Quality Checks” on page 338.
Smearing or smudging at perforations on multiple-part forms or
heavy stock.
1. Use Perforation Safety feature. Refer to a 4247 User’s
Guide.
2. See “MAP 0160: Ribbon Feed and Ribbon Lift” on page 89.
3. See “Main Paper Drive Check and Adjustment” on page 301.
4. See “Printhead Drive Service Check” on page 333.
5. Check for excessive ribbon inking.
Smearing or smudging. 1. See “MAP 0160: Ribbon Feed and Ribbon Lift” on page 89.
2. See “Main Paper Drive Check and Adjustment” on page 301.
3. See “Printhead Drive Service Check” on page 333.
4. Check for excessive ribbon inking.
Missing dots or characters. 1. See “Standard AFTA Service Check and Adjustment” on
page 285.
2. See “Print Quality Checks” on page 338.
Incorrect print, garbled print, or wrong characters print. For Model A00, see “MAP 0120: Parallel or Serial Attachment,
Model A00 and Model 003” on page 33.
For Models 001, 002, or 003, see “MAP 0121: Parallel with
Twinax or Coax Attachments, Models 001, 002, or 003” on
page 41.
For a 4247, with NPS, see “MAP 0122: Network Print Server
Attachment” on page 59.
Horizontal misalignment (dots or characters move left or right). See “Print Quality Checks” on page 338.
Vertical misalignment (dots or characters move up or down). See “Print Quality Checks” on page 338.
Chapter 1. Diagnosing Problems
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