Ricoh PB3280 Field Service Manual - Page 15

Browse online or download pdf Field Service Manual for Printer Accessories Ricoh PB3280. Ricoh PB3280 31 pages. Paper feed unit

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No.
1
End fence
2
Paper size detection switch (SW1)
Size detection switch operation
Paper size
SRA3 (12"×18")
A3 (DLT)
B4 (LG)
A4_SEF
LT_SEF
B5_SEF
A4_LEF (LT_LEF)
B5_LEF (Exe_LEF)
A5_LEF

Remaining Paper Detection/Paper End Detection

Remaining paper detection
Detection of paper remaining in the Paper feed tray is performed by a combination of ON/OFF
(contact/non-contact) of contact-type remaining detection plates (printed circuits) CN-3, CN-5.
When the amount of remaining paper decreases, and the tray lift motor (M3) rotates, the remaining
paper sensors CN-3 and CN-5 in the motor are turned ON/OFF.
The following 4 levels of remaining paper can be detected:
Amount remaining
CN-3
Description
No.
3
Size detection actuator
4
Tray set detection switch (SW2)
Size detection switch
SW4
SW3
1
0
0
1
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
1
100%
OFF
1.Detailed Descriptions
Description
SW2
1
0
0
0
1
1
1
1
1
0
0
0
0
0
0
1
1
0
0
1
70%
30%
ON
ON
SW1
10%
OFF
9