Samsung SCX-82x0 series, Service Manual

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2. Product Description
SAMSUNG ELECTRONICS Service Manual
2-30
2.4.7 MPF unit
Paper Separation
When the by-pass paper detection [A] sensor detects paper and the machine gets a by-pass printing job,
the by-pass solenoid [B] drops the pick-up roller [C] onto the top of the paper stack on the by-pass tray.
Specification
• Tray capacity : 100 sheets ( 80g/
㎡
standard Xerox Preminum )
• Media Size : Max 12”
×
18” (305
×
457
㎜
) / Min 3.87”
×
5.82” (98
×
148
㎜
)
• Media weight : Plain paper 60 ~ 253 g/
㎡
• Feeding speed : 40 ppm (SCX-8240NA), 30 ppm (SCX-8230NA) in Letter/A4 LEF (Long Edge Feeding)
• Auto size sensing : A6 SEF, Statement SEF, B5 SEF, A4 SEF, A5 LEF, B4 B5(JIS) LEF, 11x17,
LTR(Letter) LEF, A3, A4 LEF
Long paper sensor
MPF Clutch
MPF Pick up roller
Empty sensor
MPF
Tray
The following is a diagram of the MFP unit:
After that, the pick-up roller moves one
sheet of paper to the feed roller.
This machine uses an FRR (Feed and
Reverse Roller) system for feeding paper.
There is friction between the feed roller [E]
and Retard roller [D]. This friction separates
the top sheet of paper from the stack.