Table Of Contents - Toshiba e-STUDIO 2555C Service Manual

8.5.9 Poor Fusing..................................................................................................... 8-291
8.5.10 Blank Print...................................................................................................... 8-293
8.5.11 Solid Print....................................................................................................... 8-295
8.5.12 White Banding (In Feeding Direction) .............................................................. 8-297
8.5.13 White Banding (At Right Angles To Feeding Direction) ...................................... 8-299
8.5.14 Skew (Slantwise Copying) .............................................................................. 8-300
8.5.15 Color Banding (In Feeding Direction) ............................................................... 8-302
8.5.16 Color Banding (At Right Angles To Feeding Direction) ....................................... 8-304
8.5.17 White Spots .................................................................................................... 8-305
8.5.18 Poor Transfer .................................................................................................. 8-307
8.5.19 Uneven Image Density 1 (In Feeding Direction)............................................... 8-309
8.5.20 Uneven Image Density 1 (At Right Angles To Feeding Direction) ....................... 8-311
8.5.21 Uneven Image Density 2 ................................................................................ 8-312
8.5.22 Faded Image (Low Density)............................................................................. 8-314
8.5.23 Image Dislocation In Feeding Direction............................................................ 8-315
8.5.24 Image Jittering ................................................................................................ 8-316
8.5.25 Poor Cleaning................................................................................................. 8-317
8.5.26 Uneven Light Distribution ................................................................................ 8-319
8.5.27 Blotched Image .............................................................................................. 8-320
8.5.28 Stain On The Paper Back Side ......................................................................... 8-321
8.5.29 White Void In The Halftone .............................................................................. 8-323
8.5.30 Paper Wrinkle ................................................................................................. 8-326
8.5.31 Staining At The Leading/Trailing Edge............................................................... 8-328
8.5.32 Faint Image .................................................................................................... 8-329
8.5.33 Toner Scattering ............................................................................................. 8-330
8.5.34 Feathered Image............................................................................................ 8-332
8.5.35 Image Skewing On Paper Trailing Edge ........................................................ 8-334
8.5.36 Staining On Both Sides Of Paper ..................................................................... 8-337
8.5.37 Roller Trace .................................................................................................... 8-338
8.5.38 Staining At The Leading Edge .......................................................................... 8-339
9. REPLACEMENT OF PC BOARDS/HDD ...................................................................... 9-1
9.1 Removal and Installation of PC Boards/HDD.................................................................... 9-1
9.1.1 Sys Board Cover ............................................................................................... 9-1
9.1.2 Sys Board Case ................................................................................................. 9-2
9.1.3 Sys Board ......................................................................................................... 9-3
9.1.4 Hard Disk (Hdd) ................................................................................................ 9-4
9.1.5 Ih Board ............................................................................................................. 9-5
9.1.6 Lgc Board ......................................................................................................... 9-6
9.1.7 Switching Regulator ............................................................................................ 9-8
9.1.8 High-Voltage Transformer (Hvt)......................................................................... 9-9
9.1.9 SRAM board <for SYS board> ........................................................................ 9-10
9.1.10 EEPROM <for LGC board> ............................................................................. 9-11
9.1.11 DRV board ....................................................................................................... 9-11
9.1.12 Fil Board ......................................................................................................... 9-12
9.1.13 CTIF board....................................................................................................... 9-12
9.2 Precautions, Procedures and Settings for Replacing PC Boards and HDD ................... 9-13
9.2.1 Precautions When Replacing Pc Boards........................................................... 9-13
9.2.2 Hdd Fault Diagnosis ......................................................................................... 9-14
9.2.3 Precautions And Procedures When Replacing The Hdd .................................... 9-17
9.2.4 Precautions And Procedures When Replacing The Sys Board .......................... 9-22
9.2.5 Precautions and procedure when replacing the SRAM board
(for the SYS board).......................................................................................... 9-26
9.2.6 Procedures And Settings When Replacing Eeprom (For Lgc Board) .............. 9-33
9.2.7 Procedures And Settings When Replacing The Lens Unit .................................. 9-39
9.2.8 Firmware confirmation after the PC board/HDD replacement ......................... 9-39
9.2.9 License Re-Registration Using The One-Time Dongle ........................................... 9-40
9.3 Precautions For Installation Of Gp-1070 and Disposal of HDD/Board ............................. 9-42
9.3.1 Precautions for Installation of GP-1070 ........................................................... 9-42
e-STUDIO2555C/3055C/3555C/4555C/5055C
CONTENTS
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