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APPENDIX
Appendix H: Black Mark Sensor Alignment Mode
1. Turn the printer off and unplug the power cord.
2. Remove the screws. Then, remove the DIP switch cover on the bottom of the
printer.
3. Since it is adjusted by rotating the volume VR22, check the position of the
volume. Prepare a small slotted screwdriver that will fit in the hole.
4. Set the roll paper not for black mark.
5. Enter the black mark sensor adjustment mode according to the procedure
described Section 6-4.
6. Rotate the volume VR22 using micro screwdriver, to adjust it to a position
whereat both the ERROR (red LED) and the POWER (green LED) lamps
light.
7. Turn the power OFF.
This completes the black mark sensor adjustment.
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VR22
VR22
Parallel interface
Serial interface
Power off