Chapter 3: Troubleshooting ABL77 Service Manual
Reference Table, Continued
Problem Probable Cause Corrective Action
Printer – Other
Printout light or missing pixels /
not sensing paper: the thermal
printer can have a component
malfunction or this problem can
be the result of corrosion
Replace printer. See Chapter 5,
Dismantling. If corrosion is
present, investigate source of
fluid contamination
Printout light / poor quality:
thermal paper has been exposed
to high temperature
Use a fresh roll of thermal
paper.
Printout is un-readable or
shows streaks: the printer data
cable pins are making contact
with the screw that holds the
printer module together.
Replace the metal screw with a
nylon screw (REF: 023-013).
See Chapter 5 - Printer Module
Paper continually advances:
BIOS setting incorrect
Reset the BIOS setting in the
main CPU. See Chapter 4, Test
and Calibration Procedures.
No printout: The printer must be
enabled in the software.
This option is under Manager
Setup/ Report Setup / Print
Setup. The auto print feature
must be selected for patient,
calibration, and QC
Paper Jam
• See Chapter 4, Test and
Calibration Procedures
• Instruct user on proper steps
when replacing the paper roll
which includes:
• Advancing the leading edge
of the paper out the printer
door
• Ensuring the operator
removes paper by tearing up
or down, not sideways
Paper installed backwards
Orient the paper correctly. Refer
to the diagram on the inner
surface of the printer door
Paper shifts to the left: This is a
normal printer response when a
new roll of paper is installed
Advancing the paper roll 18 to
24 inches (~0.5 meter) when
installing a new roll of paper
will allow the paper to seat itself
properly within the printer
Continued on next page
3-12
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