Remains Near End; Missing Print Dots; Incorrect Print Density - IBM NetVista Kiosk DBCS Hardware Service Manual

Symptom:
The printer unit does not stop in the marked position.
Possible cause Checkpoint and
method
Poor optional Visually check the
sensor connector connector
contact
Defective optional Measure the
sensor voltage of the
connection points.
Damaged board —
frame unit
11. The printer unit continues to be in the paper-out-near-end state.
Symptom:
The LED2 blinks even if the paper roll diameter is sufficient.
Possible cause Checkpoint and
method
Wrong paper Visually check the
width setting in paper width
the paper roll setting in the
holder paper roll holder.
Poor near-end Visually check the
sensor connector connector.
contact
Defective near Measure the
end sensor voltage of the
connection points.
Damaged board —
frame unit

12. Missing print dots.

Symptom:
Some dots are not printed.
Possible cause Checkpoint and
method
Foreign matter on Visually check the
the thermal head thermal head
surface for foreign
matter.
Defective thermal Perform a test
head print and visually
check whether all
dots are printed.

13. Incorrect print density.

Evaluation Corrective action
criteria and
standard
— Reinsert the connector correctly.
Paper:
4.0±1.0V
No paper:
Replace the printer unit.
0.2±0.2V
—
Evaluation Corrective action
criteria and
standard
— Match the paper width setting in
the paper roll holder to the
paper roll.
— Reinsert the connector correctly.
Paper:
4.0±1.0V
No paper:
Replace the printer unit.
0.2±0.2V
—
Evaluation Corrective action
criteria and
standard
— Remove any foreign matter with
a cotton swab moistened with a
little ethyl alcohol.
— If the problem continues,
replace the printer unit.
The NetVista Kiosk-DBCS Model
17