Read Panasonic FA-DS72 / FA-DS82 / FA-MA301 Service Manual online
2-2
2.2 Operation of the paper feed unit
1) Structure of paper feed unit
Please refer to the paper feed section in the basic version of main body service
manual of the copy machine.
2) Operation of paper feed unit
• When the "Print" key is pressed, and the paper feed motor of system console
rotates, the drive gear of the paper feed unit is driven by a drive gear, paper feed
system clutch, and drive belt.
The drive gear is connected to the middle roller gear in the paper feed unit, so the
middle roller gear is also driven at this time.
• Next, the paper feed clutch turns on, after paper feed solenoid turns on and the
pick up roller is pressed onto the paper in drawer. The pick up roller and paper
feed roller rotate and the paper in the drawer is driven to the middle roller.
• If paper is double fed, the bottom sheet is returned by the paper drawer double
feed prevention (DFP) roller.
• Paper pass sensor confirms the movement of paper from drawer.
When the paper pass sensor does not confirm the paper arrival after a
predetermined time, "paper jam" location indicator turns on.
Through the above operation, paper, which is transmitted to the middle roller, is
fed to the main body of the copy machine.
SV005
Paper feed unit
Middle roller
Paper pass sensor
Middle roller gear
Paper feed roller
DFP roller
Pick up roller
Paper feed solenoid
Paper feed clutch
Middle drive
gear
gear
Upper drive
gear
gear
Paper feed system clutch
Paper feed motor
Lower drive gear
Drive operation of Paper feed system
Paper upper limit sensor
Paper detecting sensor
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