November 2003 © TOSHIBA TEC v e-STUDIO3511/4511 CONTENTS
15. IMAGE QUALITY CONTROL .....................................................................................15-1
15.1 General Description ......................................................................................................... 15-1
15.2 Principle of the Sensor ..................................................................................................... 15-1
15.3 Flow Chart of Control Procedure ...................................................................................... 15-2
15.4 Construction ..................................................................................................................... 15-3
15.5 Disassembly and Replacement........................................................................................ 15-4
16. FUSER UNIT / PAPER EXIT SECTION ...................................................................... 16-1
16.1 General Description ......................................................................................................... 16-1
16.2 Operation ......................................................................................................................... 16-1
16.3 Functions ......................................................................................................................... 16-2
16.4 Heater Control Circuit....................................................................................................... 16-4
16.4.1 Configuration ........................................................................................................ 16-4
16.4.2 Heating principle of IH Heater ............................................................................... 16-5
16.4.3 IH control circuit interface ..................................................................................... 16-6
16.4.4 Relation between system configuration and IH output .......................................... 16-7
16.4.5 Temperature detection section .............................................................................. 16-8
16.4.6 Abnormality in the IH control circuit..................................................................... 16-13
16.5 Control Circuit of Exit Motor ........................................................................................... 16-15
16.6 Exit Motor Drive.............................................................................................................. 16-15
16.7 Disassembly and Replacement...................................................................................... 16-16
17. AUTOMATIC DUPLEXING UNIT (ADU) .....................................................................17-1
17.1 General Description ......................................................................................................... 17-1
17.2 Description of Operations................................................................................................. 17-2
17.3 Drive of ADU .................................................................................................................... 17-8
17.4 Flow Chart........................................................................................................................ 17-9
18. POWER SUPPLY UNIT .............................................................................................. 18-1
18.1 Construction ..................................................................................................................... 18-1
18.2 Operation of DC Output Circuits ...................................................................................... 18-1
18.3 Output Channel ................................................................................................................ 18-2
18.4 Fuse ................................................................................................................................. 18-4
18.5 Configuration of Power Supply Unit ................................................................................. 18-5
18.6 Sequence of Power Supply .............................................................................................. 18-6
18.7 AC Wire Harness ............................................................................................................. 18-7
19. PC BOARDS ............................................................................................................... 19-1