Specifications

Users Manual Model 686 / 686 HT Adjustments / Maintenance •
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Sensor Calibration
Optical Sensor Electrical Calibration
The troubleshooting section will recommend when re-calibration is required.
The following guidelines indicate the proper procedure used to calibrate these
sensors.
Note: Clean all optical sensors with clean compressed air or canned air prior to
adjustment, as dust and debris will adversely affect their performance.
Supplies
- Always use clean supplies when cleaning the sensor and LED.
- NEVER use anything abrasive on the sensor and the LED.
- NEVER use an alcohol-based solution when cleaning the sensor or LED.
- Dry air or cotton swabs are the AVERY DENNISON recommended items to use
when cleaning the sensor and LED.
There are three basic steps to calibrating each optical sensor.
1) Select the sensor to be calibrated in the Calibrate Sensors mode on the front panel.
2) Place media or ink as the case maybe in the appropriate sensor and press the
“ENTER” button on the front panel.
3) In the case of stock registration sensing - reposition the media so that a hole / slot
or black reflective mark is in the sight path of the appropriate registration sensor
and press the “enter” button on the front panel. In the case of stacker jam sensor -
reposition the media so the media is not in the sight path of the jam sensor and
press the “ENTER” button on the front panel.
Reflective Registration – Transfers
There is a metal plate mounted over the bottom sensor. This plate must cover the
bottom sensor.