Double Feed Prevention Mechanism; Paper Empty Condition Detection; Paper Feed Retry Function - Konica Minolta magicolor 2480MF Service Manual

Theory of Operation Ver. 1.0 Nov. 2005
15.3.4

Double feed prevention mechanism

• The fixed Separation Pad system plus the Claw Stoppers are used for paper separation.
This ensures that only the first sheet of paper is taken up and fed in.
Pick-up Roller
15.3.5

Paper empty condition detection

• The Tray1 Paper Empty Sensor (PS9) is located on the underside of Tray1, detecting the
paper loaded in the tray.
• When there is paper loaded in the tray, the actuator drops into the tray, unblocking the
sensor light.
• When paper runs out, the actuator is raised, blocking the sensor light.
15.3.6

Paper feed retry function

• To reduce the number of paper misfeeds detected due to failure to take up and feed in
paper properly, another paper feed sequence is carried out if the Registration Sensor
(PS1) is not unblocked and blocked within a predetermined period of time.
Claw Stoppers
Actuator
Tray1 Paper Empty Sensor
15. Paper feed section
Separation Pad
4139to2090e0
4139to2091e0
53