Ricoh PB2030, Field Service Manual

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1.Mechanism
10
Paper Size Detection
The end fence is interlocked with a size detection actuator in an automatic detection system which
recognizes patterns using a 4-position push switch.
Size is detected by the detection patterns of switches 1, 2, 3, and 4. Tray set is detected by another
switch.
If the machine detects a change in the outputs from the switches, the machine detects the paper size
again from the new outputs.
If the paper size is selected manually by a user setting, the automatic size detection is overridden.
No. Description No. Description
1 End fence 3 Tray set switch
2 Paper size switch 4 Size detection actuator
•
Tray detection sizes:
A3, B4, A4 SEF, LT SEF, B5 SEF, and A4 LEF
•
Tray size detection patterns
Size Knob
1 2 3 4
A3 (DLT) *1 1 0 0 0
B4 (LG) *1 0 0 0 0
A4 SEF 0 0 1 1
LT SEF 0 1 1 0
B5 SEF 1 1 0 0
A4 LEF (LT LEF) *1 0 0 0 1
- 0 0 1 0