Inverting Automatic Document Feeder (I-Adf) - Panasonic DP-3510 Service Manual

6.4.

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.
6.4.1. 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
(513).
Adjust the Original Guides (403, 406) to center the original on the ADF. The Original Stopper (513)
prevents originals from skewing and multiple feeding. The Original Detection Sensor (401) detects the
presence of documents on the ADF when the original(s) actuate Original Sensor Actuator (521) 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 (403, 406), their position determines the original's width and the
Original Length Sensor 1 (401) 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 (925) starts to rotate and drive the Pickup Roller
(511). The 1st original is fed into the Paper Feed Roller (508) and the Separation Roller (610) with the
Torque Limiter Assembly preventing multiple feeding.
4. Transmission and Ejection
The original is fed into the Registration Roller 1 (817) and when the original actuates the Registration
Sensor 2 (401), the Paper Feed Roller (508) stops rotating. The Registration Sensor 2 (401) detects
the scanning position and the Registration Roller 2 (818) and Transport Roller (816) transport the
original while scanning. The Stamp Head (724) stamps an [X] mark on the front of the original after the
document is successfully transmitted or stored. It consists of the Stamp Head (724) and Stamp
Solenoid (726). The Exit Roller (814) 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 (513) to its standby position.
6.4.2. 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
(815), to the Exit Roller (814) or to the Inverting Roller (809). For single-sided scanning, the Selection
Ver. 5.2
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
271
JAN 2006