Toshiba 3511 12.1, 12.2, 12.3, 12-2, 12.4, 12-3, 12.5, 12-4, 12-5, 12-6, 12-9, 12.6, 12-10

12. DEVELOPER UNIT		12-1
12.1	General Description	12-1
12.2	Construction	12-1
12.3	Sectional View	12-2
12.4	Black Toner Cartridge Drive Unit	12-3
	12.4.1 General descriptions	12-3
	12.4.2 Toner motor	12-3
12.5	Black Developer Unit	12-4
	12.5.1 Functions	12-4
	12.5.2 Black developer unit drive section	12-5
	12.5.3 Black auto-toner sensor circuit	12-6
	12.5.4 Black developer unit lifting mechanism	12-9
12.6	Color Developer Unit	12-10
	12.6.1 Functions	12-10
	12.6.2 Color developer unit drive section	12-11
	12.6.3 Color auto-toner sensor circuit	12-12
	12.6.4 Color toner supply	12-14
12.7	High-Voltage Transformer Output Control Circuit	12-15
12.8	Disassembly and Replacement	12-16

13. REVOLVER UNIT		13-1
13.1	General Description	13-1
13.2	Construction	13-1
13.3	Functions	13-2
13.4	Drive of Revolver Unit	13-3
13.5	Revolver Motor Drive Circuit	13-4
	13.5.1 Revolver motor	13-4
13.6	Operation	13-5
	13.6.1 Home position detection	13-5
	13.6.2 Escape position movement	13-5
	13.6.3 During warming-up	13-5
	13.6.4 During printing	13-5
	13.6.5 Color toner supply	13-6
	13.6.6 During image quality control	13-6
13.7	Disassembly and Replacement	13-7

14. TRANSFER UNIT		14-1
14.1	General Descriptions	14-1
14.2	Construction	14-1
14.3	Functions	14-2
14.4	Outline of 1st transfer	14-4
14.5	Outline of 2nd transfer	14-4
14.6	High-Voltage Power Supply	14-5
14.7	Disassembly and Replacement	14-6

e-STUDIO3511/4511 CONTENTS iv November 2003 © TOSHIBA TEC