Service Manual RU OHAUS
Page 12 / 53 11/01/2010 Ohaus
PRINTER WON'T DELIVER LABEL
1. Check printer for obstructions.
2. Check if there is a label which has not been removed.
3. Check Take Label sensor obstructions.
4. Clean Take Label sensor.
5. Test Take label sensor with SENSOR TEST in Service Mode.
6. Check harness from Printer to Main PCB.
7. Check label stepper motor.
8. Replace Main Logic PCB.
INCORRECTLY INDEXES LABELS
1. Check label installation.
2. Check label format and label size.
3. Clean Gap Sensor Lens.
4. Check and clean platen roller, stripper bar, and delivery path using MT cleaning pen.
5. Adjust label Gap Sensor through SENSOR TEST in Service Mode.
6. Replace Gap Sensor Assembly.
7. Replace Main Logic PCB.
LABELS DARK
1. If labels are printed correctly, but are excessively dark, check the ENERGY setting in
Service Mode.
2. Check printer head harnesses for loose wires.
LABELS MISSING DOTS
1. If the labels are streaked by lines from top to bottom, replace the printer head.
2. If characters are cut off, check label format programming. If OK, replace printer
head.
LABELS ARE EXCESSIVELY LIGHT/DARK
1. Check Print SPEED and ENERGY setting in Service Mode.
2. Check with other known good label stock.
3. If light print, check and clean printer head resistor line and platen roller.
4. Check printer head harness for loose wires.
5. Check Main Logic PCB voltages. If OK, replace printer head.
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