IBM PCjr

Error
Description
No Printing
Print Head
Carriage
Not Moving
Diagnostic Action
Set printer Power switch to OFF. Measure
resistance between pin CN6-13, (driver
circuit card), and pins CN6-2I, 22, 23 and
24 (stepper motor coils) on cable end for a
reading of approximately 45 ohms.
Does the resistance = 45 ohms?
YES:
NO:
Replace control cards. See Section 4,
"Removal/Replacement and
Adjustments."
Replace print mechanism assembly.
See Section 4, "Removal/
Replacement and Adjustments."
1. Go to page 3-1400-10, "No Printing.'
Graphics Printer 3-1400-13