Swecoin TTP 101, Service Manual

Page: 21 / 56

0102 TTP 101 Kiosk Printer Sub-system – Service Manual 21
Symptom Suggested actions
No cutting.
•
Check that the connectors for the cutting
motor and the home position micro switch are
fully seated on the connector board.
Bad cutting (uneven top and bottom
document edges).
•
Switch OFF printer and remove any
obstructing paper particles in cutter and
presenter modules.
Inconsistent cutter operation.
•
Check cutter-home switch.
Paper is fed straight through the printer.
Paper does not loop.
•
Check presenter sensor.
The paper handling of the printer behaves
strangely.
•
The opto sensor might be exposed to
ambient light through the front opening or
from light sources above the printer.
Missing print or irregular spots.
•
Paper may be too humid. Let it adapt to
ambient temperature and humidity for
approximately 24 hours before use.
•
The paper used might not meet the paper
specification. See TTP 101 Technical
Specification .
White longitudinal lines in the printout.
•
Replace print head or print module.
Faint print.
•
The paper used might not meet the paper
specification. See TTP 101 Technical
Specification.
•
Clean printhead with isopropyl alcohol.
Strange characters or graphics printed, or
any kind of strange printer behavior.
•
Might be caused by erroneous data sent from
the host. Check validity of transferred data by
using the hex dump test function described in
Section 4.1.2.