Toshiba e-STUDIO2820C Service Handbook page 8

3.2.3 Color balance adjustment....................................................................................... 3-33
3.2.4 Gamma balance adjustment .................................................................................. 3-35
3.2.5 Background adjustment.......................................................................................... 3-36
3.2.6 Judgment threshold for ACS (common for copy and scan).................................... 3-37
3.2.7 Sharpness adjustment............................................................................................ 3-37
3.2.8 Setting range correction ......................................................................................... 3-38
3.2.9 Setting range correction (Adjustment of background peak) ................................... 3-39
3.2.10 Adjustment of smudged/faint text ........................................................................... 3-39
3.2.11 Color Adjustment of Marker.................................................................................... 3-40
3.2.12 Beam level conversion setting................................................................................ 3-41
3.2.13 Maximum toner density adjustment to paper type.................................................. 3-42
3.2.14 Maximum text density adjustment .......................................................................... 3-42
3.2.15 Text/Photo reproduction level adjustment .............................................................. 3-43
3.2.16 Black reproduction switching at the Twin color copy mode .................................... 3-43
3.2.17 Black header density level adjustment ................................................................... 3-44
3.2.18 Black area adjustment in twin color copy mode ..................................................... 3-44
3.2.19 Judgment threshold adjustment for blank originals ................................................ 3-44
3.2.20 Background offsetting adjustment for ADF............................................................. 3-45
3.3 Image Quality Adjustment (Printing Function) ................................................................... 3-46
3.3.1 Automatic gamma adjustment ................................................................................ 3-46
3.3.2 Gamma balance adjustment (Black Mode) ............................................................ 3-48
3.3.3 Color balance adjustment (Color Mode)................................................................. 3-50
3.3.4 Adjustment of smudged/faint text ........................................................................... 3-51
3.3.5 Upper limit value at Toner Saving Mode ................................................................ 3-51
3.3.6 Maximum toner density adjustment........................................................................ 3-52
3.3.7 Fine line enhancement switchover ......................................................................... 3-52
3.3.8 "PureBlack/PureGray" threshold adjustment (PCL) ............................................... 3-52
3.3.9 "PureBlack/PureGray" threshold adjustment (Twin color mode) ............................ 3-53
3.3.10 "PureBlack/PureGray" threshold adjustment (PS).................................................. 3-53
3.3.11 "PureBlack/PureGray" threshold adjustment (XPS) ............................................... 3-53
3.3.12 Toner limit threshold adjustment ............................................................................ 3-54
3.3.13 Screen switchover .................................................................................................. 3-54
3.3.14 Sharpness adjustment............................................................................................ 3-55
3.3.15 Offsetting adjustment for background processing .................................................. 3-55
3.4 Image Quality Adjustment (Scanning Function) ................................................................ 3-56
3.4.1 Gamma balance adjustment .................................................................................. 3-56
3.4.2 Density adjustment ................................................................................................. 3-57
3.4.3 Background adjustment (Color Mode).................................................................... 3-58
3.4.4 Judgment threshold for ACS (common for copy and network scan) ...................... 3-59
3.4.5 Sharpness adjustment............................................................................................ 3-59
3.4.6 Setting range correction ......................................................................................... 3-60
3.4.7 Setting range correction (Adjustment of background peak) ................................... 3-61
3.4.8 Fine adjustment of black density ............................................................................ 3-62
3.4.9 RGB conversion method selection ......................................................................... 3-62
3.4.10 Adjustment of chroma saturation............................................................................ 3-63
3.4.11 Background processing offset adjustment ............................................................. 3-64
3.5 Image Quality Adjustment (FAX Function) ........................................................................ 3-65
3.5.1 Density adjustment ................................................................................................. 3-65
3.5.2 Beam level conversion setting................................................................................ 3-66
3.6 Adjustment of the Process unit Related Section................................................................ 3-67
3.6.1 High-Voltage Transformer Setting .......................................................................... 3-67
3.7 Adjustment of the Scanner Section ................................................................................... 3-68
3.7.1 Adjustment carriages-1 and -2 positions ................................................................ 3-68
3.7.2 Belt tension adjustment of the Scan motor............................................................. 3-69
3.8 Adjustment of the Paper Feeding System ......................................................................... 3-70
e-STUDIO2820C/2830C/3520C/3530C/4520C
CONTENTS
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