Paper Delivery; Mainframe - Ricoh Pro C7500 Original Instructions Manual

2. Mechanism

Paper Delivery

Mainframe

The paper feed/delivery system consists of various technologies to meet high front-to-back registration
requirements demanded in the commercial printing market. The paper fed from the tray is first adjusted
for skew and main/sub-scan registration before the belt-to-paper transfer process and is then checked
for double feeding.
Skew correction & main scan registration
A Ricoh original technology is applied to separately control skew correction and main scan registration,
to achieve high accuracy in front-to-back registration.
The leading edge of the paper fed by the registration timing roller [4] strikes the rotary gate [3]. This
buckles the paper slightly and aligns its leading edge with the gate and corrects any skew. After
detection of the paper end by the CIS [2], the registration roller shifts from the area 5 mm ahead of the
paper edge to the area 5 mm before the paper transfer timing roller [1] to adjust the main scan
registration. The shifting is done by moving the rotary gate [3] in the main scan direction.
1. Paper Transfer timing roller
*
2. CIS
3. Rotary gate
4. Registration timing roller
* Contact Image Sensor
Related Advanced Settings
page 52 "Detect/Control JAM047/097/098 / JAM097 / JAM098"
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M0EBIC1113