Comparison With Dp4500/3500 - Toshiba e-STUDIO350 Service Manual

3.3 Comparison with DP4500/3500

Process
1. Photoconductive drum
(1) Sensitivity
3
(2) Surface potential
2. Charging
(1) Grid voltage
3. Data writing
(1) Light source
(2) Light amount
4. Development
(1) Magnetic roller
(2) Auto-toner
(3) Toner supply
(4) Toner-empty detection
(5) Toner
(6) Developer material
(7) Developer bias
5. Transfer
(1) Transfer bias
6. Separation
7. Discharge
(1) Discharging position
(2) Discharge LED
8. Cleaning
(1) Method
(2) Recovered toner
9. Fusing
(1) Method
(2) Cleaning
(3) Heater
e-STUDIO350/450 COPY PROCESS
DP4500/3500
OD-3500 (OPCø60)
Highly sensitized/durable drum
-750 V
Scorotron method
-790 V
Semiconductor laser (Adjustment not
required)
4.0 nJ/mm 2
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)
Adjustable output (Constant current)
+580 V (Adjustment not required)
AC: Adjustable output (Constant voltage)
DC: Adjustment not required
Exposure after cleaning
Red LED
Cleaning blade
Not reusable
Long-life fuser roller method
Fuser roller:
Coated with fluoroplastic (ø40)
Pressure roller:
PFA tube roller (ø30)
Cleaning roller for pressure roller
(ø14)
IH coil (Induction-heating method)
Turned ON/OFF by thermistor
3 - 10
e-STUDIO350/450
←
←
←
←
←
←
4.3 nJ/mm 2
←
←
←
←
T-3520, T-3520E, T-3520D, T-3520C,
T-3520T
D-3500, D-3500C
←
←
←
←
←
←
←
←
←
←
←
←
Thin roller coated with fluoroplastic(ø40)
←
←
←
←
←
November 2003 © TOSHIBA TEC