Theory of Operation
Power Supply
2-14
Supply
•
Output voltage: -400 V ~ -800 VDC ± 50 V (ZENER using, DEV)
•
Input contrast of the output stability degree: under ± 5%
Loading contrast: ± 5% or less
•
Output voltage rising time: 50 ms Max
•
Output voltage falling time: 50 ms Max
•
Output Loading range: 10 M Ohm ~ 1000 M Ohm
•
Output control signal (BIAS-PWM): The CPU is HV output when PWM is Low.
The Power Supply (switch-mode power supply, SMPS) supplies DC power for driving
the printer, and the AC heater control, which supplies power to the Fuser.
The Power Supply has two output channels: +5.0 V and +24 V.
AC Input
•
Input rated voltage:
•
AC 110 V~127 V
•
AC 220 V~240 V
•
Input voltage fluctuation range:
•
AC 99 V~140 V
•
AC 198 V~265 V
•
Rated frequency: 50/60 Hz
•
Rated frequency fluctuating range: 47~63 Hz
•
Input current: under 4.0 A/2.0 A (when the lamp is Off or rated voltage is
inputted/outputted)
Rated Output Power
Item
CH1
Channel Name
+5.0 V
Connector Pin
CON2
5V PIN: 8, 15, 16
Rated Output
+5.1 V ± 5%
(4.845 ~ 5.355 V)
Max. Output Current
1.2 A
Peak Loading Current 1.5 A
CH2
+24.0 V
CON2
24 V PIN: 5, 6, 9, 10,
12
+24 V ± 15%
(20.4 ~ 27.6 V)
2.0 A
2.5 A
Phaser 3140/3155/3160 Printer Service Manual
Remark
Under
100 ms