Service manual
SRP-150
Rev. 1.02
- 45 -
Printer mechanism problems
Problem Probable Cause Level Checkpoint Action
Feeding motor failure B
Check the short circuit
failures inside the motor
Replace the motor
Gear is dislocated from the
rotating axis
B
Check the assembly
status of the washers
holding the gears
Reassemble the
gears and washers
Paper jam occurs B Check the paper jam
Open the cover
and remove the
jammed cover
Paper
feeding
failure
Auto cutter jam occurs B Check the auto cutter jam
Open the cutter
cover and turn the
knob to put the
blades back to the
original position
The cover
cannot be
opened by
pressing the
OPEN button
Auto cutter jam occurs B Check the auto cutter jam
Open the cutter
cover and turn the
knob to put the
blades back to the
original position
Cover cannot
be closed
Deformation of the hook B
Check the deformation of
the hook
Straighten the hook
with the pliers
Error LED is
on while the
printer is in
ready state
Cover open sensor failure occurs B
Check the failure of the
sensor
Replace the sensor
Ass’y
Error LED is
on while the
printer is in
ready state
Paper end sensor failure B Check the sensor failure
Replace the sensor
Ass’y
Jointing or
bouncing
sound during
feeding
operation
Damages or foreign substances
on the gears
B
Check the damage or
foreign substances on the
gears
Replace the gears
or remove the
foreign substances
Check the communication speed A
Set the communication
speed with DIP switches
in case of serial mode
Check the DIP
switch setting
Entered
characters
and printed
characters
are different
Communication cable failure A
Check RS-232C null
modem cable
Replace the cable
Auto cut mechanism problems
Problem Probable Cause Level Checkpoint Action
Auto cutter
does not
work at all
DIP switch setting failure A
Check whether the DIP
switch 1-1 is ON
Change ON setting
to OFF