IBM PCjr

Error
Description
Printing
Too Light
Poor Print
Quality
Diagnostic Action
1. Check for adequate ink on ribbon or
damaged ribbon and replace cartridge if
needed.
2. Check ribbon cartridge for binding by
manually advancing ribbon and replace if
binding.
3. Visually
check for worn or broken ribbon
drive gears and replace carriage drive
assembly if damaged. See
Section 4,
"Removal/Replacement and Adjustments."
4. Check for bent ribbon shield and replace if
necessary. See Section 4,
"Removal/
Replacement and Adjustments."
5. Check print head for broken or binding
wires. Replace print head if wires are
broken or bound. See Section 4,
"Removal/Replacement and Adjustments."
6. Verify that print head gap is 0.6 to 0.65 mm
(.024 to .026") with the lever in the center
position. See Section 4, "Removal/
Replacement and Adjustments."
7. Check print head for loose mounting. See
Section 4, "Removal/Replacement and
Adjustments.
8. Check for loose or damaged platen, print
head carriage shafts, or print mechanism
frame. Replace print mechanism if needed.
See Section 4, "Removal/Replacement and
Adjustments."
Graphics Printer 3-1400-17