Xerox DocuPrint N2025 Service Manual page 343

4. Print Engine Controller PWB<-->HVPS<-->Print Cartridge (BCR and MAG. ROLL),
BTR, and DETACK SAW
Figure 7 Print Engine Controller PWB-HVPS-Print Cartridge, BTR, and Detack Saw
Table 6 Signal names for the Print Engine Controller PWB<-->HVPS path
Signal Name Description
DB-DC-D/A Control signal to select the DB (Development Bias) voltage (0 ~
3.3VDC)
TR-DA Control signal to select the TR(+) current (0 ~ 3.3VDC)
TR MON-I Monitor signal of the TR(+) current (0 ~ 3.3VDC) by the MTVC
Initial Issue
DocuPrint N2025/N2825
Table 6 Signal names for the Print Engine Controller PWB<-->HVPS path
Signal Name Description
TR-ON Control signal to switch the TR on and off (H=5.6V) (L=0V)
CR-DC Control signal to switch the DC component of the CR and PRB on and
off (H=24V) (L=0V)
CR-AC Constant-frequency pulse signal that provides the source of oscillation
for generating the AC component of the CR
DTS-PWM Control signal to select the DTS Duty(0 ~ 100%)
DB-AC Constant-frequency pulse signal that provides the source of oscillation
for generating the AC component of the DB (Development Bias)
Terminal Connector Output
CR P/J186 CR(AC)
CR(DC)
DB P/J187 DB(AC)
DB(DC)
TR P/J185 TR(+)
TR(-)
DTS P/J188 DTS
PRB P/J182 PRB
02/2000
7-13
Table 7 HVPS Outputs
Voltage or Current
1.55 mA (Average)
-420 VDC
2.0 kVp-p
-300 VDC
2.5 kV
-650 VDC
-1.13 kVDC
350 VDC
Base Engine
Wiring Data