Samsung ML-3471ND Especificaciones Pagina 21

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Service Manual
Product specification and feature
2-12
Samsung Electronics
2.2.2 Mechanical Parts Specifications
2.2.2.1 Frame
Material : PC + ABS V0 NH-1000T(Cheil Industries)
Weight : 1.0kg
2.2.2.2 Feeding Part
Feeding Type : Universal Cassette Type
Feeding Standard : Center Loading
Feeding Qty : Cassette 250 sheets (75g/ , 20Ib paper standard)
MPF 50 sheets (75g/ , 20Ib paper standard)
Special Media 5 sheets in MPF (OHP, Envelope, Label, Post Card, Index Paper etc.)
Separating Type : Cassette-Friction Pad Type
MPF-Friction Pad Type
Driver Type : Driving by Gearing from Main Motor
Pick Up Roller Driver : Solenoid
Pick Up Roller Rubber Material : EPDM + IR = 1.6 or more
Paper detecting Sensor : Photo Sensor
Paper Size Sensor : None
Paper Separating Pad Material : NBB 52 = 0.8~1.2
Separating Pad Pressure : 190gf
Feeding Pressure (Cassette) : 250 gf 10% (SPRING H mm, based on 1 sheet)
320 gf 10% (SPRING H mm, based on 250 sheet)
Paper Exit Type : Face Down
Feed Roller Driver : Solenoid
2.2.2.3 Transfer Ass’y
It is consisted of PTL(pre-transfer lamp) and Transfer Roller. The PTL sends a light to the OPC drum, makes the current
on the drum surface to low, and improve the transfer efficiency.
The transfer roller delivers the toner of the OPC drum to the paper.
TR Voltage : +1.3KV 5% (based on 200 , in accordance with media area, Transfer table)
-1.20KV 10% (In cleaning)
Transfer Trigger Current : 6.5 5%
Transfer Efficiency : 85% or more (All envirmnment : preferable media)
Voltage System : Voltage PWM Control System
Transfer Roller
- Material : NBR FOAM ROLL
- Structure : Mono layer
- Resistance : 3E +07 ~ 8E +07 (N/N)
- Hardness : 40 3% (ASKER-C)
- Validlength : 224.2 +0.5/-0mm
- OD : 15.0 0.5mm
- SHAFT Material : SUM -24L + Non-electrolysis Ni. Coating
Life Span : Print over 70,000 sheets (in 15~30 )
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