Dp Driver Pcb - Kyocera Mita DP-100 Service Manual

2-3-1 DP driver PCB

Copier
The DP driver PCB (DPDPCB) consists of a motor driver IC (U1), a DP open/close detection switch (DPCODSW), and so
on. The PCB mainly drives the original feed motor (OFM) based on the control signal from the copier and also supplies 5 V
DC power to each switch and relays signal lines. Since 5 V DC power to the DP original cover switch (DPOCSW) and the DP
timing switch (DPTSW) is supplied through a transistor (Q1), the power is cut when 24 V DC power is cut due to the energy-
saving function of the copier.
DPDPCB
DPDETN
I0
I1
OFM A
OFM _A
OFM B
OFM _B
5 V DC
5 V DC
24 V DC
24 V DC
5 V DC
Q1
PGND
DPOCSW
DPTSW
5 V DC
DPODSW
DPOCDSW
SGND
FGND
Figure 2-3-1 DP driver PCB block diagram
24 V DC
OFM A
Motor
OFM _A
driver
OFM B
IC
OFM _B
(U1)
DPOCSW
DPTSW
DPODSW
DPOCDSW
3HK
OFM
2-3-1