Toshiba E-STUDIO520 - Page 10

e-STUDIO520/600/720/850 CONTENTS March 2005 © TOSHIBA TEC
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15. EXIT/REVERSE SECTION.......................................................................................... 15-1
15.1 General Description........................................................................................................... 15-1
15.2 Functions ........................................................................................................................... 15-2
15.3 Driving of Exit/Reverse section.......................................................................................... 15-3
15.4 Operation........................................................................................................................... 15-4
15.5 Exit motor control circuit .................................................................................................... 15-9
15.6 Reverse motor control circuit ........................................................................................... 15-10
15.7 Disassembly and Replacement ....................................................................................... 15-11
16. REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) ...................................... 16-1
16.1 General Description........................................................................................................... 16-1
16.2 Operation........................................................................................................................... 16-2
16.3 Drive System ..................................................................................................................... 16-3
16.4 Signal Block Diagram ........................................................................................................ 16-6
16.5 Operations ......................................................................................................................... 16-7
16.5.1 A4 single-sided feeding
(Operational condition: A4 original/Reproduction ratio: 100%)............................... 16-7
16.5.2 A4 two-sided feeding
(Operational condition: A4 original/Reproduction ratio: 100%)............................. 16-12
16.5.3 A4 single-sided feeding
(Operational condition: A3 original/Reproduction ratio: 100%)............................. 16-20
16.5.4 A3 two-sided feeding
(Operational condition: A3 original/Reproduction ratio: 100%)............................. 16-24
16.5.5 Single-sided feeding at mixed-original mode
(Operational condition: A4-R and FOLIO originals/Reproduction ratio: 100%) .... 16-32
16.6 Jams ................................................................................................................................ 16-37
16.6.1 Jams at feeding section........................................................................................ 16-37
16.6.2 Jams at transporting section ................................................................................ 16-37
16.6.3 Jams at large original exit section ........................................................................ 16-38
16.6.4 Jams at small original reverse section.................................................................. 16-39
16.6.5 Jams at small original exit section........................................................................ 16-40
16.6.6 Jams at intermediate transport section ................................................................ 16-40
16.6.7 Jams when the cover is open ............................................................................... 16-41
16.6.8 Jams when 24V power is OFF ............................................................................. 16-41
16.6.9 Jams when paper remains ................................................................................... 16-41
16.7 Errors............................................................................................................................... 16-42
16.8 Original Size Detection .................................................................................................... 16-43
16.8.1 Original size detection method ............................................................................. 16-43
16.8.2 Original size detection chart ................................................................................. 16-44
16.9 Flow Chart ....................................................................................................................... 16-46
16.10Timing Chart ................................................................................................................... 16-62
16.11Circuits............................................................................................................................ 16-74
16.12Input/Output Signals ....................................................................................................... 16-80
16.13Disassembly and Replacement ...................................................................................... 16-85
17. POWER SUPPLY UNIT .............................................................................................. 17-1
17.1 Construction....................................................................................................................... 17-1
17.2 Operation of DC Output Circuit.......................................................................................... 17-2
17.3 Output Channel ................................................................................................................. 17-3
17.4 Fuse................................................................................................................................... 17-5
17.5 Configuration of Power Supply Unit................................................................................... 17-7
17.6 Power Supply Sequence ................................................................................................... 17-8
17.7 AC Wire Harness............................................................................................................... 17-9
18. PC BOARDS ............................................................................................................... 18-1