Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
Operating Principles 2-49
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:
NOTE: The Paper Size Switches are from left to right SW SW2, SW3, and
SW4. ON is 1 and OFF is 0.
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.)
Table 2-1. Paper Size Control (Cassette 1)
Paper size
Paper Size Switch
Diagnostics
display data
Voltage
(Unit: VDC)
SW1 SW2 SW3 SW4
No paper cassette 0 0 0 0 0E-0F 0.275-0.293
B5(LEF)
*1
1 1 0 0 BB-BE 3.671-3.715
EXECUTIVE(LEF)
*2
A4(LEF) 0 1 0 0 47-4A 1.396-1.445
LETTER(LEF) 1 0 1 0 9D-A1 3.098-3.152
A4(SEF)
*1
0 1 1 1 72-76 2.248-2.298
LETTER(SEF)
*2
LEGAL 14” 1 1 1 0 B8-DB 4.247-4.276
B4(SEF) 0 1 0 1 55-59 1.680-1.730
A3(SEF) 0 0 1 0 2A-2D 0.834-0.871
LEDGER(SEF) 0 0 1 1 3A-3C 1.116-1.157
12”X8”(SEF) 0 0 0 1 1C-1E 0.554-0.583
Nonstandard 1 1 1 1 E7-E9 4.537-4.554