Ricoh SR4110, Field Service Manual

Page: 17 / 60

1.Detailed Descriptions
13
No. Description No. Description
1 Paper Height Sensor – Standby Mode 4 Shift Tray Full Sensor (Large Paper)
2 Paper Height Sensor – Staple Mode 5 Shift Tray Full Sensor
3 Paper Height Sensor Actuator 6 Paper Height Sensor – Shift Mode
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Shift Up
When paper is removed from the shift tray, the feeler moves down and the paper height sensor (staple mode)
turns ON. Then the shift tray lifts until the sensor turns “OFF”.
•
Shift Down (Shift Mode)
With stacked paper on the tray, the paper height sensor (standby mode) is turned “OFF”. Then the shift tray
lift motor turns “ON” to lift the tray until the sensor turns “ON”.
•
Shift Down (Staple Mode)
When a stapled stack of paper has been output, the shift tray lift motor turns ON for a certain time to move
the tray down a set distance. Then the motor lifts the tray until the paper height sensor (staple mode) turns
from “ON” to “OFF”. The tray is now at the home position. This is done every time after a stapled stack of
paper is output. There are three shift tray full sensors, but only two of these (4, 5 in the above diagram) are
used for the machine display.
Rough Indication:
Larger Size (B4 or larger): 1,500 sheets
Smaller Size (less than B4): 3000 sheets
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Drag Roller Operation
The drag roller mechanism improves the accuracy of paper stacking on the tray by pushing the output paper