Avery Dennison SS Finisher, User Manual

Page: 29 / 72

Users Manual SS Finisher Trouble Shooting

29
Contrast Sensor Adjustment
Overview
The sensor is designed to register off a preprinted mark on a label. The
label must have a no copy area measuring 7.8mm in the feed direction
prior to the registration mark. The registration mark is to measure 3mm
in the feed direction and 10mm across the web. The registration mark
must be a solid bar. The registration mark must be black on a white
material
Setup
Place a strip of the desired printed material through the web guides on
the feed deck under the registration sensor and through the open feed
roller. There must not be any drag from the web guides or the foot on the
registration sensor. If there is drag from the web guides open them equal
distance so the web tracks down the center of the feed deck. If the foot
on the sensor contacts the web make sure the “Locating Clamp Screw” is
snug. If this doesn't correct the drag, loosen
the two “Mount Screws” that
mount the sensor bracket to the upright frame. Insert a .015" shim or 3
layers of material between the feed deck and the “Sensor Foot”.
Retighten the two “Mount Screw” and remove the spacing material. If the
foot drags on the web this will steer the web off center and not track
correctly through the feed roller.
Turn on the Finishing Station. Loosen the “Location Clamp Screw” and
place the green light beam in line with the registration mark on the label
in the feed direction. Advance the web by hand with the feed open until
the green sensor light is positioned just prior to the label registration
mark. With the green light setting on blank material, turn the “Trim Pot”
counterclockwise until the “Amber Light” below the “Trim Pot” goes out.
Slowly turn the “Trim Pot” clockwise until the “Amber Light” comes back
on. Move the web until the green light beam sets directly over the
registration mark and the “Amber Light” should go out. If the “Amber
Light” stays on - rotate the “Trim Pot” counterclockwise until it goes out.
Move the web slightly left to right by hand so the green light moves from
the registration mark to blank material and watch the “Amber Light”. The
light should quickly flash on and off. If the “Amber Light” is slow to react
turn the “Trim Pot” 1/8 turn clockwise and retest until the light toggles
quickly.