Sharp AR-810 Manual de Serviço Página 60

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AR-651/810 COPY PROCESS 3 - 10
3. 3. Comparison of Copy Process to AR-650/800
Process
1. Photoconductive drum
(1) Sensitivity
(2) Surface potential
2. Charging
3. Surface potential controlling
4. Writing
(1) Light source Semiconductor laser (adjustment Same as AR-650/800
not required)
(2) Light amount 4.0 nJ/mm
2
3.8nJ/mm
2
5. Image density control Image quality sensor Same as AR-650/800
6. Development
(1) Magnetic roller Two magnetic rollers Same as AR-650/800
(2) Auto-toner Magnetic bridge-circuit method Same as AR-650/800
(3) Toner supply Toner hopper system Toner cartridge system
(There is a toner recycle system.)
(4) Toner-empty detection Density detection method/lever joint Density detection system
use
(5) Toner T-6570/6570E T-6510/6510E/6510D
(6) Developer material D-6570J D-6510
(7) Developer bias DC-400V + AC DC-500V + AC
7. Transfer
(1) Transfer Transfer belt Transfer belt
(Electrical resistance is lower than
AR-650/800.)
(2) Power supply roller Power supply roller Power supply roller
Separation auxiliary roller Separation auxiliary roller
8. Separation Transfer belt charging Same as AR-650/800
Separation finger applied Same as AR-650/800
9. Discharging
(1) Discharging position Discharge by exposure after cleaning Same as AR-650/800
(2) Discharge lamp Discharge by red LED Same as AR-650/800
(3) Pre-cleaning discharge None Same as AR-650/800
10. Cleaning
(1) System Blade + Brush Same as AR-650/800
(2) Recovered toner Not acceptable Reuse (by the toner recycle system)
11. Cleaning brush bias Earth Varistor 430V
AR-650/800 AR-651/810
OD-6570 (OPC drum) OD-6510 (OPC drum)
Highly sensitized drum Same as AR-650/800
650 V (grid voltage 720V) 700 V (grid voltage 733V)
Scorotron method (constant current) Same as AR-650/800
Grid output variable Same as AR-650/800
None Surface potential sensor
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