KX-MB2110RUW, KX-MB2130RUW, KX-MB2170RUW, KX-MB2117RUB, KX-MB2137RUB, KX-MB2177RUB - Panasonic Copying Equipment Service Manual (repair manual). Page 65

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KX-MB2110RUW/ KX-MB2130RUW/ KX-MB2170RUW/ KX-MB2117RUB/ KX-MB2137RUB/ KX-MB2177RUB
6.15. HVPS (High Voltage Power Supply) Section
6.15.1.
HVPS Specification
As for the developing voltage, the DC voltage and AC voltage are overlapped and output from an output terminal.
There is one terminal for transcription output and + and - are switched to be output.
6.15.2.
CHG-BIAS (Charge BIAS)/GRID/ UNIT
When IC300 turns on the transistor Q506, CHG REM becomes “L”, and Charge BIAS (200
A) is output from CHG OUTPUT.
GRID BIAS is generated by the current flowing in the GRID circuit via charge wire and GRID.
Charge (CHG)
Grid
Developing DC
(DEV DC)
Developing AC
(DEV AC)
Transfer (TRA) -
Transfer (TRA) +
Output Characteristics Constant current
Constant voltage
Constant voltage
Constant voltage
Constant current
(Variable)
Constant voltage
Nominal Output Voltage 4.35KV
475±10V
230V±15V
(50~300V)
PWM20%
300M
/220pF
330V±15Vp-p
34KHz
100M

(-1.48KV)
785V±100V
Nominal Output Current 200±15
A
(19.4M
)
200
A
0.73
A
-----
-14.8
A±1A
(0
A~25A)
PWM 35%
1000M

(0.8
A)
Load Range
18.1M
~20.6M
-----
100M
~2000M
-----
33.8M
~284M
10M
~1000M
Constant Current
Range
4.1~4.6KV
-----
-----
-----
-0.5KV ~ -4.2KV
-----

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