Epson ColorPage EPL-C8000, Service Manual

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EPSON EPL-C8000 Rev. B
Chapter A APPENDIX A-49
A.3.3.9 Wiring Diagram - §9
Feed Solenoid coil resistance: 90 Ω
±
10% (20 ° C)
Size Switch signal
The paper size in the paper tray is determined by the Paper Size
Switch ON/OFF. (The Paper Size Switch is on the Size Switch
Assembly). The following table gives the paper sizes, Paper Size
Switch states (ON/OFF) and the switch voltages.
NOTE:The Paper Size Switches are defined as SW1, SW2,
SW3 and SW4 (viewed from the front of the printer). It is
defined that ON: 1 and OFF:0.
NOTE: If the ON/OFF state is the same for the Paper Size Switches,
one of the following is selected depending on the specifications
of the printer.
*1: The mm (millimeter) unit specification
*2: The inch unit specification
Table A-30. Wiring Diagram - §9
Signal Name Description
[1] SIZE SWITCH Signal to detect the size of the paper in Tray 1.
(Analog)
[1] FEED SOLENOID ON (L)
24VDC Control signal to turn the Feed Solenoid ON/OFF in
Tray 1.
[1] TRAY PAPER SENSED (L)
5VDC Signal from the Tray No Paper Sensor to detect the
paper in Tray 1. (High: No paper/Low: Paper in the
tray)
[1] LOW PAPER SENSED (L)
5VDC Signal from the Low Paper Sensor to detect low
paper level in Tray 1. (High: Enough paper/Low:
Low paper level)
Table A-31. Size Switch Signal
Paper size
Paper Size Switch
Voltage
(Unit: V DC)
SW1 SW2 SW3 SW4
No paper tray 0 0 0 0 0.275~0.293
B5 (LEF) *1
1 1 0 0 3.671~3.715
EXECUTIVE (LEF) *2
A4 (LEF)
0 1 0 0 1.396~1.445
LETTER (LEF) 1 0 1 0 3.098~3.152
A4 (SEF) *1
0 1 1 1 2.248~2.298
LETTER (SEF) *2
LEGAL 14” (SEF)
1 1 1 0 4.247~4.276
B4 (SEF) 0 1 0 1 1.680~1.730
A3 (SEF) 0 0 1 0 0.834~0.871
LEDGER (SEF) 0 0 1 1 1.116~1.157
12” x 8” (SEF) 0 0 0 1 0.554~0.583
Irregular 1 1 1 1 4.537~4.554
<Not used> 1 0 0 0 -
<Not used> 1 0 0 1 -
<Not used> 0 1 1 0 -
<Not used> 1 0 1 1 -
<Not used> 1 1 0 1 -