Control; Paper Size Control - Epson AcuLaser C8500 Service Manual

EPSON AcuLaser C8500

2.7 Control

2.7.1 Paper Size Control

Analog Input Test Data and SIZE SWITCH signal voltage according to ON/
OFF of Paper Size Switch of SIZE SWITCH ASSY and diagnostics signal
corresponding to paper size are as shown in the following table:
Paper size
No paper cassette
*1
B5(LEF)
EXECUTIVE(LEF)
A4(LEF)
LETTER(LEF)
*1
A4(SEF)
LETTER(SEF)
LEGAL 14"
B4(SEF)
A3(SEF)
LEDGER(SEF)
12"X8"(SEF)
Nonstandard
NOTE: For when the ON/OFF status of Paper Size Switches in the same, one of the two is selected according to the specifications. (*1: mm unit specs, *:2 Inch unit specs.)
Operating Principles
Table 2-1. Paper Size Control (Cassette 1)
Paper Size Switch
SW1 SW2
0 0
1 1
*2
0 1
1 0
0 1
*2
1 1
0 1
0 0
0 0
0 0
1 1
NOTE: The Paper Size Switches are from left to right SW SW2, SW3, and
SW4. ON is 1 and OFF is 0.
Diagnostics
display data
SW3 SW4
0 0 0E-0F
0 0 BB-BE
0 0 47-4A
1 0 9D-A1
1 1 72-76
1 0 B8-DB
0 1 55-59
1 0 2A-2D
1 1 3A-3C
0 1 1C-1E
1 1 E7-E9
Revision C
Voltage
(Unit: VDC)
0.275-0.293
3.671-3.715
1.396-1.445
3.098-3.152
2.248-2.298
4.247-4.276
1.680-1.730
0.834-0.871
1.116-1.157
0.554-0.583
4.537-4.554
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