Toshiba 452 12.4, 12-4, 12-5, 12-7, 12.5, 12-8, 13.1, 13-1, 13.2, 13.3, 13-2, 13.4, 13-4, 13-5

12.4	Auto-Toner Circuit	12-4
	12.4.1 General description	12-4
	12.4.2 Function of auto-toner sensor	12-5
	12.4.3 Adjustment using the temperature / humidity sensor	12-7
	12.4.4 Adjustment using the drum thermistor	12-7
12.5	Disassembly and Replacement	12-8

13. FUSER UNIT / PAPER EXIT SECTION		13-1
13.1	General Description	13-1
13.2	Operation	13-1
13.3	Functions	13-2
13.4	Heater Control Circuit	13-4
	13.4.1 Configuration	13-4
	13.4.2 Heating principle of IH Heater	13-5
	13.4.3 IH control circuit interface	13-6
	13.4.4 Relation between system configuration and IH output	13-7
	13.4.5 Temperature detection section	13-8
	13.4.6 Abnormality in the IH control circuit	13-13
13.5	Control Circuit of Exit Motor	13-15
13.6	Exit Motor Drive	13-15
13.7	Disassembly and Replacement	13-16

14. AUTOMATIC DUPLEXING UNIT (ADU)		......................................................................14-1
14.1	General Description	14-1
14.2	Description of Operations	14-2
14.3	Drive of ADU	14-8
14.4	Flow Chart	14-9
14.5	Disassembly and Replacement	14-11

15.	POWER SUPPLY UNIT		15-1
	15.1	Construction	15-1
	15.2	Operation of DC Output Circuits	15-1
	15.3	Output Channel	15-2
	15.4	Fuse	15-4
	15.5	Configuration of Power Supply Unit	15-5
	15.6	Sequence of Power Supply	15-6
	15.7	AC Wire Harness	15-7
16.	PC BOARDS		16-1

e-STUDIO350/352/353/450/452/453	iv © 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
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