Xerox 7750DXF - Phaser Color Laser Printer - Page 389

10-65
Development K
9.15
4.1B
DISPENSED
BLACK TONER
9.8
LATENT
IMAGE (K)
9.8
LATENT
ADC PATCH (K)
9.8
LATENT REGICON
PATCH (K)
1
3 3 3 3 3
2
DEVE BIAS (C, K) POWER CONTROL
CAUTION
HIGH
VOLTAGE
5
6
1 2 3 4 5 6
9.13A DEVELOPMENT (K) (1 of 2)
DEVE (K) DRIVE
HVPS CONTROL PWB PL9.1
I/F PWB PL9.1
DC COM
DC COM
DC COM
DC COM
+24VDC
INTLK
+24VDC
INTLK
+24VDC INTLK +24VDC INTLK
MCU PWB PL13.1
DC COM +5VDC
4 3 2 1
J553
VIO VIO
ORN ORN
J501
HVPS T5 PL9.1
P/J571
15 16 26 27 31 18 20 10 10 11 12 13
P/J570
15,16,1
7
A12 A14
J405
BLU BLU
DC COM
P131
DC330 [009-080]
ATC SENSOR POWER
ON (H) +5VDC
DOUBLE
PLUG
DOUBLE
PLUG
3 1
1 3
J132
ATC SENSOR (K) PL6.2
4
J132
P132
BLU
22
DC140 [009-026]
DEVE BIAS (C AK)
AC REMOTE 1
DC140 [009-026]
DEVE BIAS (C AK)
AC REMOTE 2
DC140 [009-026]
DEVE BIAS (K)
DC REMOTE
DC140 [009-026]
AC BIAS REMOTE 2
DC140 [009-026]
AC BIAS REMOTE 1
ANALOG GND
+5VDC REF
AC BIAS VOLTAGE
MONITOR
DEVE BIAS (C AK)
AC VOLTAGE MONITOR
J580
DISPENSED
BLACK TONER
LATENT
IMAGE (K)
LATENT
ADC PATCH (K)
LATENT REGICON
PATCH (K)
DEVE BIAS (K)
DEVE (K) DRIVE
7
DC140 [009-103]
ATC SENSOR (K)
SENSED SIGNAL
J405
A13
MCU PWB PL13.1
ATC SENSOR (K) SENSED SIGNAL
HVPS Control PWB performs Deve Bias on/off control and remote control by conducting serial communications with MCU PWB. For the wiring between MCU PWB and HVPS Control PWB, see CH 3.1B AC Bias Remote 1 and AC Bias Remote 2 are remote signals for the converter that generates the DC element. Turning on DC140 [009-026] allows BCR for every color, Deve Bias for every color, Main Motor, Drum Motors and Deve Motor to operate simultaneously. When replacing Deve Assy or ATC Sensor, use Reference Value and Gain Value specified on the label of the new ATC Sensor for DC921 ATC Sensor Setup. Detects Low Toner and Toner Empty by ATC Sensor-sensed Toner Concentration in Deve Assy and ICDC Control. Virtual Line
NOTES:
7750-303
A B C
D
E
F
9.31C
9.13B 9.13B 9.13B 9.13B 9.13B 9.13B