Ricoh V-C3 Technical Training Manual page 447

Scale
Feedback
Sensors
! The feedback sensors do these things:
" Measure the speed of the belt. To do this, one of the sensors monitors
the scale when the belt turns.
" Check for stretches in the belt. The number of marks in the interval
between the sensors must be constant.
Slide 447
# Belt speed: The following is a list of items that can cause the belt speed to not be
constant. The machine adjusts the ITB drive motor speed to compensate.
$ Eccentricity of the image transfer roller
$ Differences in the thickness of the belt
$ Belt slippage
$ The load placed on the ITB by friction between the rollers at paper transfer
# Stretching: If stretching is detected, the machine adjusts the ITB drive motor
speed to compensate.
ITB Speed Control
447
V-C3 Training