Lexmark C78x - Page 354

5-16 Service Manual
5061
JMMK1
Printhead—black mirror motor
1 FUSE24V
2 Ground
3 Ground
4 +5 V dc (through fuse F12)
5K_MMSTART
6 K_HSYN-SOS
7K_MMLOCK
8 Ground
9K_MMREF
10 N/C
JMMM1
Printhead—magenta mirror motor
1 FUSE24V
2 Ground
3 Ground
4V_V5FUSE
5 M_MMSTART
6 M_HSYN-S0S
7 M_MMLOCK
8 Ground
9 M_MMREF
10 N/C
JMPF1
MPF motor and sensor
1+5Vdc
2MPF+Enc
3 Ground
4MPF_Mtr-
5MPF_Mtr+
6 Ground
7+5Vdc
8 MPF Paper Out
9 MPF Paper Low
10 Ground
JOPP1
Operator panel
1 BUF_I2CDATA
2 +5V dc (through fuse 8)
3 BUF_I2CCLK
4 Ground
5 OP-Panel Interrupt (Active line)
See “System board” on page 5-7.
Connector Pin no. Signal