Panasonic KX-FLM551, Service Manual

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7.12. HVPS (High Voltage Power Supply) SECTION
7.12.1. HVPS SPECIFICATION
No Output voltage Item Specification Notes
1 Electrostatic Ratet output voltage -1200±35V
Charge Impedance range 80M~1200M
CHG BIAS Output format Constant voltage
2 Developing Ratet output voltage -350±15V
DEV(-) BIAS Impedance range 20M~2000M
Output format Constant voltage
Developing Ratet output voltage +220+20-50V
DEV(+) BIAS Output format Constant voltage
3 Supply roller Ratet output voltage -550±50V
SUP BIAS Impedance range 20M~2000M
Output format Constant voltage
4 Transfer Variable output current +4~30 A Output
current
TRA(+) BIAS Output voltage +3500V Max. varies with
the
Output format Variable Constant current printed rate.
Transfer Ratet output voltage -1200±100V
TRA(-) BIAS Output format Constant voltage
DEV BIAS is output from one of the output terminals after the DEV CHG signal selects DEV(+)
BIAS and DEV(-) BIAS.
TRA BIAS is output from one of the output terminals after the TRA CLK signal selects TRA(+)
BIAS and TRA(-) BIAS.
7.12.2. CHG-BIAS (Charge BIAS)/SUP BIAS (Supply BIAS)/DEV(-) BIAS
(Developing(-) BIAS)/DEV(+) BIAS (Deve) BIAS) UNIT
When the CHG REM terminal becomes "L", the transistor Q202 turns ON by MC101, Charge
BIAS(-1200V) is output from CHG OUTPUT, Supply BIAS(-550V) is output from SUP output, and
Developing(-) BIAS(-350V) is output from DEV(-) BIAS.By performing the DEV(-) BIAS output, the
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