Epson DFX-8500 Hfanb, Ftmp, Fancom, Htmp, Hfana, Pwidth, HR3P, HR2P, HR9N, HR2N, HR7P, HR7N, HR9P

APPENDIX

Table A-2. C204 MAIN Board Connector CN1

Pin	Signal Name	I/O	Function
1	P+10	O	Printhead pin #10
2	P-10	O	GND
3	P+12	O	Printhead pin #12
4	P-12	O	GND
5	P+16	O	Printhead pin #16
6	P-16	O	GND
7	P-17	O	GND
8	P-9	O	GND
9	P+17	O	Printhead pin #17
10	P-11	O	GND
11	P+11	O	Printhead pin #11
12	P-7	O	GND
13	P+9	O	Printhead pin #9
14	P-7	O	GND
15	P+2	O	Printhead pin #2
16	P+1	O	Printhead pin #1
17	HFANB	O	HF motor phase B
18	P-1	O	GND
19	FTMP	I	HF motor temperature
20	P-2	O	GND
21	FANCOM	O	HF motor common
22	HTMP	I	Print head temperature
25	HFANA	O	HF motor phase A
29	PWIDTH	I	Paper width signal
30	+5	-
23, 24,, 26, 27, 28	GND	-

Table A-3. C204 MAIN Board Connector CN2

Pin	Signal Name	I/O	Function
1	HR3P	O	Print head coil #6 drive signal
2	HR2P	O	Print head coil #4 drive signal
3	HR9N	O	Print head coil #18 drive signal
4	HR2N	O	Print head coil #4 drive signal
5	HR7P	O	Print head coil #14 drive signal
6	HR7N	O	Print head coil #14 drive signal
7	HR9P	O	Print head coil #18 drive signal
8	HR3N	O	Print head coil #6 drive signal
9	HL8P	O	Print head coil #15 drive signal
10	HL3N	O	Print head coil #5 drive signal
11	HL8P	O	Print head coil #13 drive signal
12	HL2N	O	Print head coil #3 drive signal
13	HL8N	O	Print head coil #15 drive signal
14	HL7N	O	Print head coil #13 drive signal
15	HL3P	O	Print head coil #5 drive signal
16	HL2P	O	Print head coil #3 drive signal
167	HR4P	O	Print head coil #8 drive signal
18	HR4N	O	Print head coil #8 drive signal
19	HRSENS	I	Print head coil shortage monitoring
20	HNSENS	I	Print head coil shortage monitoring

Table A-4. C204 MAIN Board Connector CN3

Pin	Signal Name	I/O	Function
1	COPEN	I	Cover open status
2	GND	-	-

Rev. B A-3