Service manual

Feed Clutch
An electrical clutch that engages the feed belt by a signal from the controller.
Feed Brake
The Feeder Brake and clutch work together to provide consistent feeding. In
the 420T there are a number of settings that can be made to assist in the
feeding of different types of paper. Using the touch screen the feeder can
be setup for “pulse feeding” or “stream feeding”. Pulse feeding refers to the
feeding of paper one sheet at a time by turning the clutch on and off for each
sheet of paper fed. Stream feeding refers to the feeding of paper by
allowing the singulator, if set up correctly, to regulate the sheets being fed.
Stream feeding is also the faster method of feeding with the shortest gap
between the sheets.
Read Gate (Line Code Gate) Sensor
Thru beam sensor mounted within the brackets holding the F40 Reader. It
tells the reader to begin looking for line code marks when the sensor sees
the leading edge of the paper.
Feed Sensor
The Feed Sensor monitors the paper output of the singulator for proper
singulation or non-feed of paper. It is a retro-reflective sensor that requires a
reflective surface to complete the beam and it is identified by a label marked
with an “F”. The sensor is located on the singulator assembly downstream
from the singulator.
INTRODUCTION
420T V6LT OPERATOR & SERVICE MANUAL ISSUE 2009/06 Rev. 6/21/2011 SECTION A – PAGE 15
071-33370-400
Feeder Brake, Clutch & Monitor Mount
Feeder Sensors