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(6) If the two lamps remain ON after flashing, it means that the sensor is adjusted properly and
does not require further adjustment.
(7) If both the ERROR and POWER lamps are OFF, use a plastic slot screwdriver to turn and
adjust the VR3 knob to a position in which both the ERROR and POWER lamps are ON.
If the adjustment has been successful, proceed to (10).
(8) If the adjustment has not been successful, press the FEED button. The two lamps on the
control panel will flash to indicate that the light emitting level of the sensor has been changed
by one step. Then, as in (7), turn and adjust the VR3 knob to a position in which both the
ERROR and POWER lamps are ON. If the adjustment has been successful, proceed to (10).
(9) If the adjustment has not been successful, press the FEED button again. The two lamps on the
control panel will flash to indicate that the light emitting level of the sensor has been changed
by one step. Then, as in (7), turn and adjust the VR3 knob to a position in which both the
ERROR and POWER lamps are ON. If the adjustment has been successful, proceed to (10).
If the adjustment has not been successful, have the printer repaired.
(10) Turn OFF the power switch.
(11) Set the dip switch SW1-4 to ON.
(12) Return the dip switches SW1-5, SW1-6, and SW1-7 to their original settings.
The light emitting level of the sensor changes one step at a time, as shown below.
Level 1
1 step
Level 2
(Default)
Level 3
1 step
1 step
5-4-2. Adjusting the reflection type sensor
(1) Set the roll paper against the reflection
type sensor. Then, close the printer cover.
Either thermal label roll paper or thermal
roll paper is acceptable. However, if it has
black marks, set the roll paper in such a
way that a black mark is not placed against
the sensor.
(2) Turn OFF the power to the printer. (For
safety, unplug the power cable from the
outlet.)
(3) Undo the screw and remove the dip switch
cover from the bottom of the printer.
(4) To activate the sensor adjustment mode,
use a pointed object to set the dip switches
as follows:
DSW 1-4 = OFF, DSW 1-5 = ON,
DSW 1-6 = ON, DSW 1-7 = ON
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VR2
OFF
ON
DIP Switch 2 DIP Switch 1