Rena T-750 - Manual (Page 46)

OPERATOR MAINTENANCE
Cleaning the Sensors
There are three sensors in the tabber; the media sensor located above the table of the tabber, the
tab sensor on the applicator head and tab web sensor in the transport area. These sensors should
be clean and free of accumulated paper dust. Use a vacuum with a soft brush attachment or a
small soft-bristled paint brush and dry compressed air to remove the dust.
WARNING
DO NOT USE ABRASIVES OF ANY KIND TO CLEAN SENSORS.
DO NOT USE LIQUIDS OF ANY KIND, TO CLEAN SENSORS.
The sensor locations are as follows:
MEDIA SENSOR TAB SENSOR WEB (BIN) SENSOR
Media Sensor Test: There are two LED’s located on the exit side of the Media Sensor.
Green LED ON = Power Present
Orange LED ON = No Paper (not interrupted)
Orange LED OFF = Paper Present (interrupted)
If the orange LED is not on when there is no paper present, then the reflector may need to be cleaned.
If the orange LED comes “on” even when paper is present, then the sensor intensity may need to be
lowered. This is rare, but possible when high gloss media is being used. A qualified Rena service person
should make this adjustment.
Tab Web Sensor Test: There are two LED’s located on the exit side of the Tab Web Sensor.
Caution! To avoid tabs being driven from the tab reel and or personal injury from moving
rollers, please be sure to press the Emergency STOP button, before testing the Tab Web Sensor.
Green LED ON = Tabs/Stamp Present (interrupted)
Orange LED ON =
No Tabs/Stamps Present
T-750 Tabber Operations Rev. 3/4/08 46