Functions - Samsung SCX-8030ND Series Service Manual

2.4.3 Functions

This section describes the functions of the paper hand
Pickup Roller (paper tray and MP tray) Pickup Roller (paper tray and MP tray)
This roller moves up and down and draws out the pap
the feed roller.
Forward Roller (paper tray and MP tray)
This roller is placed against the Retard roller. It transp
transport roller.
R t d Retard roller (paper tray and MP tray) ll (
This roller is placed against the feed roller. When two
pickup roller, the load of the torque limiter of the Retar
sheets. As a result, the Retard roller is stopped and th
only one sheet is transported from the pickup roller, th
roller.
Transport Roller (paper tray and MP tray) p (p p
This roller transports the paper sent from the feed rolle
Registration Roller
Paper transported from the transport roller is pushed a
edge of the paper. Then, the registration rollers rotate
MP tray Paper Sensor
This sensor detects whether paper is set in the bypass This sensor detects whether paper is set in the bypass
before drawer feeding.
Empty Sensor (Tray 1 / Tray 2)
This is a transmissive-type sensor and it detects the a
When there is no paper in the drawer, the actuator blo
determines that there is no paper.
Paper Stock Sensor
This is a transmissive-type sensor which detects the a
actuator. When the remaining paper is consumed and
blocks
the light path for the transmissive-type sensor to detec
Feed Sensor Feed Sensor
This sensor detects if the leading edge or trailing edge
detects jamming such as missfeeding.
Registration Sensor
This sensor detects that the leading edge of the paper
trailing edge of the paper has passed the registration r
Service Manual
SCX-8030/8040 series
2. Product D
t d MP t )
y
Description
dling components.
er from the bypass tray or drawer and transports it to
ports the paper from the pickup roller to the
sheets of paper or more are transported from the
rd roller is heavier than the frictional force between the
he lower paper does not advance any further. When
e Retard roller rotates following the feed
y)
er to the registration roller.
against the registration roller which aligns the leading
e to transport the paper to the transfer unit.
s tray. When it is, MP tray always comes s tray When it is MP tray always comes
vailability of paper in the drawer by using an actuator.
ocks the light path of the sensor, and the sensor
amount of remaining paper in the drawer using an
d approximately 100 sheets remain, the actuator
ct that there is less paper.
e of the paper has passed the feed roller. It also
r has reached the registration roller and that the
roller.
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SAMSUNG ELECTRONICS
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