SNBC BTP-M300 - Printer Adjustment and Troubleshooting; Printer Adjustment Guide

BTP-M300 Service Manual
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5.2 Printer adjustment
5.2.1 Print spacing adjustment
1) Turn off the power;
2) Disassemble the printer cover with reference to 4.2.1 after print head cooling down;
3) Measure the print spacing with feeler gauge and compare with standard distance(0.5±0.05mm), if the
distance is bigger than standard distance, please rotate the eccentric bushing at both sides in arrow
direction ① until the print spacing measured meets the standard distance requirements; If the print
spacing is less than standard distance, please rotate the eccentric bushing at both sides in arrow
direction until the ② print spacing measured meets the standard distance requirements.
4) Fix the eccentric bushing with glue to complete the print spacing adjustment;
5) Install the printer cover with reference to 4.2.1.
Caution:
 While disassembling the locking frame of printer, the force must be moderate to avoid damaging the
cover of printer.
 In reassembling, please fix all screws firmly.
5.2.2 Tighten transmission belt of carriage
1) Turn off the power;
2) After the print head cooling down, open the front cover and take off the ribbon;
3) Remove the two ST2.9X6 screws with cross screwdriver, tighten the transmission belt in the arrow
direction(about 1~2 kg force), then fix the two screws to complete tightening transmission belt .