Panasonic Workio DP-C305, Service Manual

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596
DP-C405/C305/C265
FEB 2008 Ver. 1.1
6.2. Inverting Automatic Document Feeder (i-ADF)
The i-ADF (Inverting Automatic Document Feeder) automatically feeds documents into the unit, one
original at a time. When duplex mode is selected, this feature enables two-sided faxing, or copying of
the original(s).
Its main features are:
1. Place originals Face-Up
2. Correct Order Stacking (Collation Mode)
3. Paper Feed Mechanism with Pre-Feed Roller
The following is the ADF / i-ADF Mechanical operation description.
6.2.1. Automatic Document Feeder Operation
1. Initialization
The ADF begins its operation by turning on the Feed Motor for a specified time, lowering the Pickup
Roller to re-set the Original Stopper to its standby position.
2. Original Setting and Size Sensors
Place the original(s) face up on the ADF until the leading edge stops against the Original Stopper.
Adjust the Original Guides to center the original on the ADF. The Original Stopper prevents originals
from skewing, and multiple feeding. The Original Detection Sensor detects the presence of documents
on the ADF when the original(s) actuate Original Sensor Actuator on the ADF Cover. The two Sensors
mounted on the SNS PC Board which is installed in the Original Tray are actuated by the Original
Guides, their position determines the original's width, and the Original Length Sensor 1 and Length
Sensor 2 (401) detect the length of the original.
3. Feeding and Separation
When the Start button is pressed, the ADF Motor 1 starts to rotate, and drive the Pickup Roller. The 1st
original is fed into the Paper Feed Roller, and the Separation Roller with the Torque Limiter Assembly
preventing multiple feeding.
4. Transmission and Ejection
The original is fed into the Registration Roller 1, and when the original actuates the Registration
Sensor 2, the Paper Feed Roller stops rotating. The Registration Sensor 2 detects the scanning
position, and the Registration Roller 2, and Transport Roller transport the original while scanning. The
Stamp Head stamps an [X] mark on the front of the original after the document is successfully
transmitted or stored. It consists of the Stamp Head, and Stamp Solenoid. The Exit Roller feeds, and
ejects the original out of the ADF. If there are additional originals on the ADF, the next one is fed into
the feeder.
5. Final Operation
After ejecting the last original from the ADF, the Clutch reverses the direction of rotation raising
the Original Stopper to its standby position.
6.2.2. i-ADF Operation
The i-ADF automatically inverts 2-Sided original(s) for faxing, or copying of the second side. This
feature enables your machine to perform duplex faxing, or copying.
An i-ADF (Inverting Automatic Document Feeder) functions like the ADF with the main exception being
the original eject path after scanning. The following is the description of the main differences.
1. Switching from the ADF Mode to the i-ADF Mode
After passing through the Read Point, the path of the original is switched over by the Selection Guide
1, to the Exit Roller or to the Inverting Roller. For single-sided scanning, the Selection Guide 1 (815) is
rotated clockwise by the Selection Solenoid guiding the original to the Exit Roller. For 2-Sided
scanning, the Selection Guide 1 is rotated counter-clockwise by the Selection Solenoid guiding the
original to the Inverting Roller. The Selection Guide 1 moves only once, in the direction according to
whether a single or 2-Sided scanning is selected (Copier or Fax) before the Start button is pressed.