Oki B6100 Technical Manual page 485

The following table shows the signal names for the PWBA HKB26 MCU <=> PWBA HVPS path:
Signal Name
CR-DC Control signal to switch the Charge Voltage for DC component of the CR and the PBR on and
off.
Low: OFF, High: ON (applied charge voltage)
CR-AC Constant-frequency pulse signal that provides the source of oscillation for generating the AC
component of the CR
CR-CH
DB-DA Constant-frequency pulse signal that provides the source of oscillation for generating the AC
component of the DB (Development Bias) in the HVPS
TR(-) Transfer Voltage (-) to be applied onto BTR (Analog)
TR(+) Transfer Voltage (+) to be applied onto BTR (Analog)
DB.DC Control signal to select the Development Voltage for DC component (Analog)
DTS Control signal to select the DTS Voltage (Analog)
TR-A/D
TR-D/A Control signal to select the TR(+) voltage (0 to 3.3VDC) as determined by the ATDVC (Analog)
PRB Pressure Roll Bias to be applied on the Pressure Roll
The following table shows pin numbers, and voltage levels for the PWBA HKB26 MCU <=> PWBA
HVPS path:
P26 P261
15 1
14 2
13 3
12 4
11 5
10 6
9 7
8 8
7 9
6 10
OKI B6100 Laser Printer - Base Engine Technical Manual
Version 1.0
DB3 PWBA HKB26 MCU <=> PWBA HVPS <=> BTR, CRU, and Fuser Assy
Signal Direction
Signal Name
H:HVPS M: MCU
CD-DC
CR-AC
CR-CH
DB-BA
TR(-)
TR(+)
DB.DC
DTS
TR-A/D
TR-D/A
Wiring Diagrams and Interconnections
Description
Trigger
M => H Level
M => H -
M => H
M => H -
M => H Level
M => H Level
M => H Level
M => H Level
M <= H Level
M => H Level
HIGH LOW
Note
Level Level
3.3V 0V
- - Pulse
- - Pulse
- - Analog
- - Analog
- - Analog
- - Analog
- - Analog
- - Analog
14-11