Ricoh SR3250 - Mechanism; Straight Paper Ejection Mechanism; Shift Eject Mechanism

1.Detailed Descriptions
10
Mechanism
Straight Paper Ejection Mechanism
Paper ejected from the printer unit is transported by a transport roller and eject roller via an entrance
roller. These are driven by entrance motor, transport motor and eject motor which permit linear speed
correspondence. The paper exit driven roller stands by at a certain distance from the paper exit roller,
and its descent/ascent is performed by an eject guide plate movable motor depending on the detection
timing of the sensors (motor operates CW/CCW).
The paper exit guide plate descent/ascent timings are as follows:
• Descent: Paper rear edge passes entrance sensor
• Ascent: Paper rear edge passes transport sensor
The eject guide plate is provided with a Home Position sensor which detects the home position during
ascent.
No.
Description
No.
Description
1
Paper exit motor
8
Transport sensor
2
Paper exit roller
9
Transport motor
3
Paper exit guide plate
10
Transport roller
4
Paper exit guide plate motor
11
Entrance sensor
5
Paper exit guide plate HP sensor
12
Entrance motor
6
Paper exit driven roller
13
Entrance roller
7
Shift roller
-
-
Shift Eject Mechanism
As with straight eject, shift eject is also done by transporting the paper to a transport roller and an eject
roller via an entrance roller.
In shift operation, a shift roller is moved from front to back during transport by the driver of a shift motor.
Shift roller operation timings are as follows:
• Shift operation: Trailing edge of the preceding sheet passes entrance sensor