Option Feeder 2 - Konica Minolta Magicolor 3300 Service Manual

3.2 Option Feeder 2

3.2.1 Major functions
SENSOR PHOTO (tray 2) (Low Paper Sensor)
SENSOR PHOTO (tray 3) (Low Paper Sensor)
The actuator lowers according to how much paper remains in the paper tray. When the actuator lowers
to certain extent, it intercepts the sensor beam to detect low paper quantity.
As the actuator position can be seen from the front side of paper tray, you can confirm approximate
residual paper quantity.
PWBA OPTFDR
Controls paper pick-up operation of each tray to the FEEDER DRIVE ASSY based on the
communication with the PWBA HBN MCU or information from the sensors and switches.
Its major functions are as follows.
• Communication with PWBA HBN MCU
• Reception of information from sensors and switches
• Control of DRIVE ASSY FEEDER, solenoids, ad clutches
• Control of paper pick-up operation
• Distribution of low voltage DC power supplied from the main unit to each component
DRIVE ASSY FEEDER
Supplies drive to the FEEDER DRIVE ASSY of each tray.
6-148