Epson DFX-8500 Service Manual page 207

Table A-2. C204 Main Board Connector CN1
Pin
1 P+10
2 P-10
3 P+12
4 P-12
5 P+16
6 P-16
7 P-17
8 P-9
9 P+17
10 P-11
11 P+11
12 P-7
13 P+9
14 P-7
15 P+2
16 P+1
17 HFANB
18 P-1
19 FTMP
20 P-2
21 FANCOM
22 HTMP
25 HFANA
29 PWIDTH
30 +5
23, 24, 26, 27, 28 GND
Table A-3. C204 Main Board Connector CN2
Pin Signal Name
1 HR3P
2 HR2P
3 HR9N
4 HR2N
5 HR7P
6 HR7N
7 HR9P
8 HR3N
9 HL8P
10 HL3N
11 HL8P
12 HL2N
13 HL8N
14 HL7N
15 HL3P
16 HL2P
167 HR4P
18 HR4N
19 HRSENS
20 HNSENS
Signal Name
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I/O Function
O Printhead pin #10
O GND
O Printhead pin #12
O GND
O Printhead pin #16
O GND
O GND
O GND
O Printhead pin #17
O GND
O Printhead pin #11
O GND
O Printhead pin #9
O GND
O Printhead pin #2
O Printhead pin #1
O HF motor phase B
O GND
I HF motor temperature
O GND
O HF motor common
I Printhead temperature
O HF motor phase A
I Paper width signal
—
—
Function
Printhead coil #6 drive signal
Printhead coil #4 drive signal
Printhead coil #18 drive signal
Printhead coil #4 drive signal
Printhead coil #14 drive signal
Printhead coil #14 drive signal
Printhead coil #18 drive signal
Printhead coil #6 drive signal
Printhead coil #15 drive signal
Printhead coil #5 drive signal
Printhead coil #13 drive signal
Printhead coil #3 drive signal
Printhead coil #15 drive signal
Printhead coil #13 drive signal
Printhead coil #5 drive signal
Printhead coil #3 drive signal
Printhead coil #8 drive signal
Printhead coil #8 drive signal
Printhead coil shortage monitoring
Printhead coil shortage monitoring
APPENDIX
A-3