Rena T-650 - Manual (Page 97)

OPERATOR MAINTENANCE
Sensors
There are three sensors in the tabber. Two tab sensors, one on each of the applicator heads, and
one media sensor, located on the Left Media Guide Assembly. 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
THE TABBER IS A PRECISION MACHINE THAT SHOULD BE CLEANED REGULARLY
TO INSURE MANY YEARS OF SERVICE. BEFORE PERFORMING ANY MAINTENANCE,
DISCONNECT IT FROM ITS POWER SOURCE!
DO NOT LIQUIDS TO CLEAN THE SENSORS. DO NOT USE ABRASIVES TO CLEAN
THE SENSOR LENS
The sensor locations are as follows:
Media Sensor Test:
There are two LED’s located on the entrance 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 Sensor Test:
Use the V-Tab adjustment screen to check the live tab sensor voltage (V=) value.
• Not Interrupted (Nothing in sensor. Tab stock removed.) = 0.12V or less
If you remove all the tab material from the Tab Applicator and clean the tab sensor, but it still
reads higher than 0.12V; this would indicate a dirty or damaged sensor.
If the tab sensor reads 3.30V or higher, even when the sensor is not interrupted; this would
indicate a totally blocked, damaged, or disconnected sensor.
If the tab sensor does not respond correctly after being cleaned, a qualified Rena service person should
be contacted to disassemble clean and possibly replace the tab sensor.
T-650 Operations REV. 8/25/2010 97