Epson EPL-N1600 Service Manual page 172

EPSON EPL-N1600
CONTROLLER ROS ASSY., SOS SENSOR, AND SWITCH ASSY.
5V INTERLOCK
Rev. A
Table 7-6. Signal Names / Controller - ROS Assy., SOS Sensor
Signal Name
/PDATA Print Image Data (Low = Black dot:, High = White dot)
MO Monitor signal which feeds back the LD output power (Analog
signal)
VL2 Control signal which determines the drive current for the LD
(Analog signal)
VL1 Control signal which determines the drive current for the LD
(Analog signal)
5V-IL +5VDC circuit from the Switch Assembly 5V Interlock. The circuit is
connected to the Laser Diode driving circuit
5V-LD +5VDC Laser Diode driving circuit (interrupted by the Interlock
Switch when the Exit Cover is open)
CLK Clock signal used for latching data
/RMOT ON Control signal which switches on and off the ROS Motor (The ROS
Motor is switched on when this signal is Low and off when High)
Table 7-7. Pin Assignment / Controller - ROS Assy.
P262 or
CN223 P2312 Signal Name
14 P262-1 /P. DATA
13 P262-2 MO
12 P262-3 VL2
11 P262-4 VL1
9 P262-7 5V-LD
3 P2312-3 /RMOT ON
Chapter 7 Appendix
Description
Signal
Direction
M: Controller Trigge High
R: ROS r Level
M R Level TTL
M R - -
M R - -
M R - -
M R - 5V
M R Level TTL
Low
Level
TTL
-
-
-
0V
TTL
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