112
MO-C1 Training
Slide 112
Paper Feed
Vertical feed motor and drive belt: Drive the registration and exit rollers to
feed paper through the printer.
The vertical motor is controlled by the vertical encoder wheel (on the left
side of the machine).
The exit roller has a slightly larger diameter than the registration roller. This
keeps the paper slightly stretched to prevent buckling.
Vertical encoder sensor: Uses the vertical encoder wheel to control paper
feed.
Vertical encoder HP sensor: Corrects the paper feed mechanism for
irregularities in rotation of the registration roller.
Vertical Feed
Motor
Drive Belt
Vertical Encoder
Sensor
Vertical Encoder
HP Sensor
Vertical Encoder
Wheel
Exit Rollers
Registration
Roller
Vertical encoder HP sensor: Home position of the paper feed mechanism is
determined by the print standby position and paper feed standby positions for the
two rolls. However, if the registration roller is slightly off center, the amount of
paper fed for a set amount of motor rotation may be different from normal. By
giving the encoder wheel a set home position, and determining the amount of
paper fed (by monitoring the time that the leading edge gets to the sensors), the
machine can correct for these errors.
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