Service manual

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EPSON LQ-300+ Revision C
Appendix Connector Summary 84
Table 7-4. CN5-Release Sensor
Pin I/O Signal Name Function
1 I RELEASE Release sensor signal
2 - GND Signal ground
Table 7-5. CN6-PE (Bottom) Sensor
Pin I/O Signal Name Function
1 I BPE Bottom paper end sensor signal
2 - GND Signal ground
Table 7-6. CN7-PG (Copy Mode) Sensor
Pin I/O Signal Name Function
1 I PG Paper gap (copy mode) sensor signal
2 - GND Signal ground
Table 7-7. CN8-Power Board C294 PSB/PSE
Pin I/O Signal Name Function
1 - VH +35VDC
2 - VH +35VDC
3 - GP Signal ground
4 - GP Signal ground
5 O PSC Power save control
6 O POFF Power off signal
7 - +5V +5VDC
8 - +5V +5VDC
9 - GND Signal ground
Table 7-8. CN9-Head
Pin I/O Signal Name Function
1 O HD6 Head data 6
2 O HD14 Head data 14
3 O HD10 Head data 10
4 O HD23 Head data 23
5 O HD18 Head data 18
6 O HD16 Head data 16
7 O HD22 Head data 22
8 - HDCOM Common (VP)
9 - HDCOM Common (VP)
10 - HDCOM Common (VP)
11 O HD7 Head data 7
12 O HD19 Head data 19
13 O HD 2 Head data 2
14 O HD 11 Head data 11
15 O HD 3 Head data 3
Table 7-9. CN10-CR Motor
Pin I/O Signal Name Function
1 O CRA Carriage motor phase A
2 O CRA Carriage motor phase A
3 O CRB Carriage motor phase B
4 O CRB Carriage motor phase B