Toshiba 452, 453, 353 service manual Comparison with DP4500/3500

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3.3  Comparison with DP4500/3500

	Process	DP4500/3500	e-STUDIO350/352/353/450/452/453
1. Photoconductive drum		OD-3500 (OPCø60)	←
(1)	Sensitivity	Highly sensitized/durable drum	←
(2)	Surface potential	-750 V	←
2. Charging		Scorotron method	←
(1)	Grid voltage	-790 V	←
3. Data writing
(1)	Light source	Semiconductor laser (Adjustment not	←
		required)
(2)	Light amount	4.0 nJ/mm2	4.3 nJ/mm2
4. Development
(1)	Magnetic roller	One magnetic roller	←
(2) Auto-toner		Magnetic bridge-circuit method	←
(3)	Toner supply	Toner cartridge	←
(4)	Toner-empty detection	Density detection method	←
(5)	Toner	T-3500, T-3500E, T-3500D	T-3520, T-3520E, T-3520D, T-3520C,
			T-3520T (e-SDUDIO350/352/452/453)
			T-4520, T-4520E, T-3520C
			(e-STUDIO353/453)
(6)	Developer material	D-3500	D-3500, D-3500C
(7)	Developer bias	DC-550 V Adjustable output (during	←
		printing)
		DC+150 V Fixed (others)	←
5. Transfer		Adjustable output (Constant current)	←
(1)	Transfer bias	+580 V (Adjustment not required)	←
6. Separation		AC: Adjustable output (Constant	←
		voltage)
		DC: Adjustment not required	←
7. Discharge
(1)	Discharging position	Exposure after cleaning	←
(2)	Discharge LED	Red LED	←
8. Cleaning
(1)	Method	Cleaning blade	←
(2)	Recovered toner	Not reusable	←
9. Fusing
(1)	Method	Long-life fuser roller method	←
		Fuser roller:	←
		Coated with fluoroplastic (ø40)	Thin roller coated with fluoroplastic
			(ø40)
		Pressure roller:	←
		PFA tube roller (ø30)	←
(2)	Cleaning	Cleaning roller for pressure roller	←
		(ø14)	←
(3)	Heater	IH coil (Induction-heating method)	←
		Turned ON/OFF by thermistor	←
e-STUDIO350/352/353/450/452/453		3 - 10 © 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
COPY PROCESS		07/11