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e-STUDIO350/352/353/450/452/453
COPY PROCESS
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3.3 Comparison with DP4500/3500
07/11
Process DP4500/3500 e-STUDIO350/352/353/450/452/453
1. Photoconductive drum
(1) Sensitivity
(2) Surface potential
OD-3500 (OPCø60)
Highly sensitized/durable drum
-750 V
←
←
←
2. Charging
(1) Grid voltage
Scorotron method
-790 V
←
←
3. Data writing
(1) Light source
(2) Light amount
Semiconductor laser (Adjustment not
required)
4.0 nJ/mm
2
←
4.3 nJ/mm
2
4. Development
(1) Magnetic roller
(2) Auto-toner
(3) Toner supply
(4) Toner-empty detection
(5) Toner
(6) Developer material
(7) Developer bias
One magnetic roller
Magnetic bridge-circuit method
Toner cartridge
Density detection method
T-3500, T-3500E, T-3500D
D-3500
DC-550 V Adjustable output (during
printing)
DC+150 V Fixed (others)
←
←
←
←
T-3520, T-3520E, T-3520D, T-3520C,
T-3520T (e-SDUDIO350/352/452/453)
T-4520, T-4520E, T-3520C
(e-STUDIO353/453)
D-3500, D-3500C
←
←
5. Transfer
(1) Transfer bias
Adjustable output (Constant current)
+580 V (Adjustment not required)
←
←
6. Separation AC: Adjustable output (Constant
voltage)
DC: Adjustment not required
←
←
7. Discharge
(1) Discharging position
(2) Discharge LED
Exposure after cleaning
Red LED
←
←
8. Cleaning
(1) Method
(2) Recovered toner
Cleaning blade
Not reusable
←
←
9. Fusing
(1) Method
(2) Cleaning
(3) Heater
Long-life fuser roller method
Fuser roller:
Coatedwithuoroplastic(ø40)
Pressure roller:
PFA tube roller (ø30)
Cleaning roller for pressure roller
(ø14)
IH coil (Induction-heating method)
Turned ON/OFF by thermistor
←
←
Thinrollercoatedwithuoroplastic
(ø40)
←
←
←
←
←
←