© 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO520/523/600/603/720/723/850/853
CONTENTS
3
4.8.6 Checking and cleaning of fuser roller and pressure roller ...................................... 4-39
4.8.7 Checking and replacing of cleaning web................................................................ 4-40
5. TROUBLESHOOTING .................................................................................................. 5-1
5.1 Diagnosis and Prescription for Each Error Code ................................................................. 5-1
5.1.1 Paper transport jam .................................................................................................. 5-1
5.1.2 Paper misfeeding ................................................................................................... 5-25
5.1.3 Cover open jam ...................................................................................................... 5-33
5.1.4 Transport jam (RADF) ............................................................................................ 5-36
5.1.5 Finisher jam ............................................................................................................ 5-42
5.1.6 Paper feeding system related service call.............................................................. 5-56
5.1.7 Scanning system related service call ..................................................................... 5-60
5.1.8 Fuser unit related service call................................................................................. 5-62
5.1.9 Communication related service call........................................................................ 5-66
5.1.10 RADF related service call ....................................................................................... 5-68
5.1.11 Laser optical unit related service call ..................................................................... 5-71
5.1.12 Finisher related service call.................................................................................... 5-75
5.1.13 Service call for others ............................................................................................. 5-96
5.1.14 Error in Internet FAX / Scanning Function............................................................ 5-101
5.1.15 Troubleshooting for image quality control ............................................................ 5-119
5.1.16 Troubleshooting for surface potential control ....................................................... 5-124
5.1.17 Troubleshooting for remaining toner detection sensor ......................................... 5-126
5.2 Troubleshooting for the Image......................................................................................... 5-127
5.3 Replacement of PC Boards and HDD ............................................................................. 5-153
5.3.1 Replacing HDD..................................................................................................... 5-153
5.3.2 Replacing SYS board ........................................................................................... 5-156
5.3.3 Cautions when Data overwrite kit (GP-1060) is installed .................................... 5-157
5.3.4 Replacing NVRAM ............................................................................................... 5-158
5.3.5 HDD information display....................................................................................... 5-159
5.4 Other errors ..................................................................................................................... 5-161
6. FIRMWARE UPDATING ............................................................................................... 6-1
6.1 Firmware Updating with Download Jig ................................................................................ 6-3
6.1.1 PWA-DWNLD-350-JIG2 (48 MB) <Master data> ..................................................... 6-5
6.1.2 PWA-DWNLD-350-JIG2 (48 MB) <System ROM / Engine ROM /
Scanner ROM / Laser ROM / PFC ROM>.............................................................. 6-11
6.1.3 Writing the data to the download jig (PWA-DWNLD-350-JIG) ............................... 6-26
6.1.4 K-PWA-DLM-320.................................................................................................... 6-28
6.2 Firmware Updating with USB Storage Device................................................................... 6-39
7. POWER SUPPLY UNIT ................................................................................................ 7-1
7.1 Output Channel ................................................................................................................... 7-1
7.2 Fuse..................................................................................................................................... 7-3
7.3 Configuration of Power Supply Unit..................................................................................... 7-5
8. REMOTE SERVICE....................................................................................................... 8-1
8.1 Auto Supply Order ............................................................................................................... 8-1
8.1.1 Outline ...................................................................................................................... 8-1
8.1.2 Setting Item .............................................................................................................. 8-2
8.1.3 Setting procedure ..................................................................................................... 8-5
8.1.4 Order Sheet Format ............................................................................................... 8-13
8.2 Service Notification............................................................................................................ 8-15
8.2.1 Outline ....................................................................................................................8-15
8.2.2 Setting ....................................................................................................................8-15
8.2.3 Items to be notified ................................................................................................. 8-21
05/06
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