Panasonic UF-585 Service Manual page 179

ADF Mechanism
The ADF (Automatic Document Feeder) automatically feeds paper into the unit, and consists of ADF Roller and Separation
Rubber. Each document is placed face-down on the Printer Cover (106) before being fed into the unit.
The ADF Roller (331) feeds individual pages into the scanning area.
The Separation Rubber (207) separates documents placed on the ADF, preventing multiple feeding.
A4 LED Array (329)
The UF-585/595 has one LED Array, used as a light source to illuminate the document. The LED Array turns ON when the Read
Point Sensor is activated by the document leading edge.
Transmit Guide Unit
The Transmit Guide Unit is an auxiliary part used for feeding and ejecting documents. It consists of the Transmit Guide (301),
Control Panel Chassis (201), Feed Roller (302), Eject Roller (303), and Eject Pinch Roller (206) and Feed Pinch Roller
(236). This unit also provides the white scanning area and serves as a base for electronic white reference.
Transmit Mechanism Drive System
This system feeds documents through the transmitting mechanism, and consists of rollers, gears and a stepper motor.
The Transmit Motor (324), a stepper motor, controlled by the CPU, drives the ADF Roller, Feed Roller and Eject Roller, with
the speed based on the density of the picture information.
The Feed Roller (302) feeds the document to the scanning point.
The Eject Roller (303) feeds and ejects the document out of the machine.
Transmit Mechanism Sensors
The ADF Sensor (PC1), activated by Actuator A (224), detects the presence of documents on the ADF Tray and multiple
pages.
The RP (Read Point) Sensor (PC3), activated by Actuator B (225), detects the lead and trail edges of the document,
controlling the reading position. The CPU determines that a document is jammed if Actuator B is not tripped within a
specified time after the ADF Roller starts feeding, and disengages the ADF Roller by reversing the Transmit Motor direction.
The ADF Door Sensor (PC2), activated by ADF Door Actuator (226), halts all scanning operations when the Control Panel
Unit is opened.
Verification Stamp Unit
The Verification Stamp Unit stamps an "X" mark on the front of the document after the document is successfully transmitted or
stored. It consists of the Stamp Head (325), Stamp Holder (326) and Stamp Solenoid (327).
Scanner Block (321)
The Scanner Block consists of three mirrors, a Lens, and a CCD PC Board (337).
The mirrors, Mirror 1 (334), Mirror 2 (335) and Mirror 3 (336) reflect image information, in the form of light, through the Lens.
The Lens focuses the image information and passes it to the CCD.
The CCD, mounted on the CCD PC Board, converts the image information into an electronic signal.
System Description
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