Toshiba e-STUDIO453 - 4. General Operation; 4.1 Overview of Operation; 4.2 Description of Operation; 4.3 Detection of Abnormality

ive-STUDIO350/352/353/450/452/453
CONTENTS
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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Conguration ...........................................................................................................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conguration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Conguration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