Toshiba e-STUDIO 5540C Service Manual page 26

6.2.14 Text/Photo reproduction level adjustment ....................................................... 6-43
6.2.15 Black header density level adjustment ............................................................ 6-44
6.2.16 Black area adjustment in twin color copy mode............................................... 6-44
6.2.17 Judgment threshold adjustment for blank original ........................................... 6-45
6.2.18 Background offsetting adjustment for RADF ................................................... 6-45
6.2.19 Twin color copy / mono color copy adjustment ................................................ 6-46
6.2.20 Maximum density adjustment for each paper type .......................................... 6-47
6.2.21 ADF noise reduction (Copying Function) ......................................................... 6-47
6.3 Image Quality Adjustment (Printing Function)................................................................. 6-49
6.3.1 Automatic gamma adjustment ......................................................................... 6-49
6.3.2 Gamma balance adjustment (Black Mode)...................................................... 6-52
6.3.3 Color balance adjustment ................................................................................ 6-55
6.3.4 Adjustment of faint text .................................................................................... 6-58
6.3.5 Upper limit value at Toner Saving Mode.......................................................... 6-58
6.3.6 Maximum toner density adjustment (OHP) ...................................................... 6-59
6.3.7 Fine line enhancement switchover .................................................................. 6-60
6.3.8 "PureBlack/PureGray" threshold adjustment (PS) ........................................... 6-60
6.3.9 "PureBlack/PureGray" threshold adjustment (PCL) ......................................... 6-61
6.3.10 "PureBlack/PureGray" threshold adjustment (XPS)......................................... 6-61
6.3.11 "PureBlack/PureGray" threshold adjustment (Twin color print) ....................... 6-61
6.3.12 Toner limit threshold adjustment...................................................................... 6-62
6.3.13 Screen switchover ........................................................................................... 6-63
6.3.14 Sharpness adjustment ..................................................................................... 6-64
6.3.15 Adjustment of smudged text (1200 dpi) ........................................................... 6-66
6.3.16 Thin line width lower limit adjustment .............................................................. 6-66
6.3.17 Color/black judgment setting for twin color printing images............................. 6-66
6.3.18 Background adjustment ................................................................................... 6-67
6.3.19 Density adjustment of graphic lines (1200 dpi) ................................................ 6-68
6.3.20 Beam level conversion setting ......................................................................... 6-69
6.4 Image Quality Adjustment (Scanning Function).............................................................. 6-70
6.4.1 Gamma balance adjustment............................................................................ 6-70
6.4.2 Density adjustment .......................................................................................... 6-71
6.4.3 Background adjustment (Color Mode) ............................................................. 6-72
6.4.4 Judgment threshold for ACS (common for copy & scan)................................. 6-72
6.4.5 Sharpness adjustment ..................................................................................... 6-73
6.4.6 Setting range correction................................................................................... 6-73
6.4.7 Fine adjustment of black density ..................................................................... 6-74
6.4.8 RGB conversion method selection .................................................................. 6-75
6.4.9 Adjustment of saturation .................................................................................. 6-75
6.4.10 Background processing offset adjustment....................................................... 6-76
6.4.11 Adjustment of the capacity and image quality of SlimPDF .............................. 6-77
6.4.12 Surrounding void amount adjustment .............................................................. 6-77
6.4.13 ADF noise reduction (Scanning Function) ....................................................... 6-78
6.5 Image Quality Adjustment (FAX Function)...................................................................... 6-79
6.5.1 Density adjustment .......................................................................................... 6-79
6.5.2 Beam level conversion setting ......................................................................... 6-80
6.6 Scanner........................................................................................................................... 6-81
6.6.1 Adjustment carriages-1 and -2 positions ......................................................... 6-81
6.6.2 Belt tension adjustment of the Scan motor ...................................................... 6-82
6.7 Paper Feeding System.................................................................................................... 6-83
6.7.1 Adjustment of the media sensor position......................................................... 6-83
6.7.2 Separation roller pressure force adjustment .................................................... 6-84
6.7.3 Sheet sideways deviation caused by paper transporting adjustment .............. 6-88
6.7.4 Adjusting the clearance of the paper and side guides ..................................... 6-91
6.8 Process Unit Related Section ......................................................................................... 6-92
6.8.1 High-Voltage Transformer Setting ................................................................... 6-92
6.8.2 Adjustment of the Auto-Toner Sensor ............................................................. 6-92
6.8.3 Adjustment of the doctor-sleeve gap ............................................................... 6-93
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
CONTENTS
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