Toshiba e-STUDIO556 Service Manual page 19

5.11.2 Operation procedure ........................................................................................ 5-23
5.11.3 Functions ......................................................................................................... 5-24
5.12 SRAM Clear Mode (6C) .................................................................................................. 5-28
5.12.1 Overview.......................................................................................................... 5-28
5.12.2 Operation procedure ........................................................................................ 5-28
5.12.3 Functions ......................................................................................................... 5-29
5.13 List Print Mode(9S) ......................................................................................................... 5-31
5.14 Pixel counter ................................................................................................................... 5-46
6. ADJUSTMENT .............................................................................................................. 6-1
6.1 Adjustment Order .............................................................................................................. 6-1
6.2 Adjustment of Auto-Toner Sensor..................................................................................... 6-2
6.3 Image Dimensional Adjustment ........................................................................................ 6-4
6.3.1 General description............................................................................................ 6-4
6.3.2 Paper alignment at the registration roller........................................................... 6-6
6.3.3 Printer related adjustment................................................................................ 6-10
6.3.4 Scanner related adjustment............................................................................. 6-16
6.4 Image Quality Adjustment (Copying Function)................................................................ 6-24
6.4.1 Automatic gamma adjustment ......................................................................... 6-24
6.4.2 Density adjustment .......................................................................................... 6-25
6.4.3 Background adjustment ................................................................................... 6-26
6.4.4 Sharpness adjustment ..................................................................................... 6-26
6.4.5 Setting range correction................................................................................... 6-27
6.4.6 Adjustment of smudged/faint text .................................................................... 6-27
6.4.7 Gamma balance adjustment............................................................................ 6-28
6.4.8 Adjustment of image density............................................................................ 6-29
6.4.9 Judgment threshold adjustment for blank originals ........................................ 6-30
6.4.10 ADF scan noise reduction (Copying Function) (e-STUIDIO557/657/757/857) 6-30
6.5 Image Quality Adjustment (Printing Function)................................................................. 6-31
6.5.1 Adjustment of smudged/faint text .................................................................... 6-31
6.5.2 Adjustment of image density............................................................................ 6-31
6.5.3 Gamma balance adjustment............................................................................ 6-32
6.6 Image Quality Adjustment (Scanning Function).............................................................. 6-33
6.6.1 Gamma balance adjustment............................................................................ 6-33
6.6.2 Density adjustment .......................................................................................... 6-34
6.6.3 Judgment threshold for ACS........................................................................... 6-35
6.6.4 Sharpness adjustment ..................................................................................... 6-35
6.6.5 Setting range correction (Only for e-STUIDIO556/656/756/856) ..................... 6-36
6.6.6 Background adjustment ................................................................................... 6-37
6.6.7 Fine adjustment of black density ..................................................................... 6-37
6.6.8 RGB conversion method selection .................................................................. 6-38
6.6.9 Adjustment of saturation .................................................................................. 6-38
6.6.10 Background processing offset adjustment
(Only for e-STUIDIO556/656/756/856) .......................................................... 6-39
6.6.11 Background offsetting adjustment for RADF (common for copy,scan and fax)6-40
6.6.12 Surrounding void amount adjustment ............................................................. 6-40
6.6.13 JPEG compression level adjustment (e-STUIDIO557/657/757/857) ............... 6-40
6.6.14 Adjustment of the capacity and image quality of SlimPDF
(e-STUIDIO557/657/757/857) ........................................................................ 6-41
6.6.15 ADF scan noise reduction (Scanning Function)
(e-STUIDIO557/657/757/857) ........................................................................ 6-41
6.7 Image Quality Adjustment (FAX Function)...................................................................... 6-42
6.7.1 Density adjustment .......................................................................................... 6-42
6.7.2 Adjustment of image density............................................................................ 6-43
6.8 Measurement at Replacement of High-Voltage Transformer.......................................... 6-44
6.8.1 Measurement................................................................................................... 6-44
6.9 Adjustment of the Scanner Section................................................................................. 6-49
6.9.1 Adjustment carriages-1 and -2 positions ......................................................... 6-49
6.9.2 Belt tension adjustment of the Scan motor ...................................................... 6-50
© 2011-2014 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO556/656/756/856/557/657/757/857
7
CONTENTS