Ricoh D3EV Manuale di servizio sul campo - Pagina 33
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Electrical Component Summary
Motor
No.
Name
M1
Feed Motor
M2
Lift Motor
M3
Relay Motor
M4
Transport
Motor
M5
Motor Fan
PCB
No.
PCB1
Bypass Unit Control Board
Sensors
No.
Name
S1
Lift Sensor
Detects when the paper in the bypass tray is at the proper height for paper feed.
S2
Tray
Detects when the tray is at its lowest possible position.
Lower
Limit
Sensor
S3
Paper End
Informs the copier when the paper in the bypass tray has run out.
Sensor
S4
Paper
Detects the copy paper coming to the 4th paper feed roller and checks for
Feed
misfeeds.
Sensor
S5
Paper
Paper end sensor. The paper height sensor pair (1 and 2) work together to
Height
monitor the height of the paper stack in the bypass tray.
Sensor 1
S6
Paper
Paper near end sensor. The paper height sensor pair (1 and 2) work together to
Height
monitor the height of the paper stack in the bypass tray.
Sensor 2
S7
Paper
Used with the paper width switch to determine paper size. This sensor is activated
Length
when paper is set for short edge feed. For example, when the paper width switch
Sensor
detects A4 width and this sensor is off, the machine determines A4 is set for long
edge feed. When A4 width is detected and the paper length sensor is on, then the
machine determines that A3 is loaded for short edge feed.
Drives the paper feed roller in the feed mechanism.
Raises and lowers the bottom plate below the paper stack.
Drives the relay rollers that feed the paper from the bypass tray into the feed
path of the LCT below.
Drives the transport roller of the bypass tray that pulls the paper out of the tray
and sends it to the relay roller.
Mounted below the transport motor, cools the area below the feed motor and
transport motor.
Name
Controls operation of all bypass unit electrical components.
2.Detailed Descriptions
Description
Description
Description
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