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Maintenance / Adjustments
Users Manual Model 656/636
- Check that the front web guides have been positioned properly - both on the
supply roll and in front of the print roller.
- Check that the feed roller pressure has been set equally across the roller.
- Check to see that the print head pressure has been set properly.
- Repeat the sensor alignment procedure.
Cleaning Print Sensor
When print registration, in reference to sense mark, becomes inconsistent or erratic
the Sensor and Light Bar may need to be cleaned.
Supplies:
- Always use clean supplies when cleaning the sensor and light bar.
- Never use anything abrasive to the sensor and light bar.
- NEVER use an alcohol based solution when cleaning the sensor or light bar.
- Dry air or a cotton swab are the PAXAR recommended items to use when cleaning
the sensor and light bar.
Sensor Trim Pots
Your 656 / 636 printer is equipped with several sensors used to detect the status of
the printer and its supplies. While these sensors are calibrated at the time your
printer is manufactured, there may be times when re-calibration is required. Re
calibration times are indicated in the troubleshooting section.
The following guidelines indicate the proper procedure used to calibrate the sensors.
A voltmeter is highly recommended for this procedure, however the Bank of Lights
will provide an estimation of sensor performance until peak performance can be
achieved with a voltmeter.
Suggestion:
clean all optical sensors prior to adjustment as dust and debris will
adversely effect their performance.
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