Appendix h: black mark sensor alignment mode – Star Micronics SP500 Series User Manual

Page 122

– 119 –

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.

VR22

Parallel interface

Serial interface

Power off