Toshiba e-STUDIO556 Service Manual page 17
Multifunctional digital systems
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- Service manual (1484 pages) ,
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- Management manual (282 pages)
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6.4.9
Background offsetting adjustment for RADF .................................................. 6-29
6.4.10
Judgment threshold adjustment for blank originals ........................................ 6-30
6.5
Image Quality Adjustment (Printing Function)................................................................. 6-31
6.5.1
6.5.2
Adjustment of image density............................................................................ 6-32
6.5.3
Gamma balance adjustment............................................................................ 6-33
6.6
Image Quality Adjustment (Scanning Function).............................................................. 6-34
6.6.1
Gamma balance adjustment............................................................................ 6-34
6.6.2
Density adjustment .......................................................................................... 6-35
6.6.3
Judgment threshold for ACS........................................................................... 6-36
6.6.4
Sharpness adjustment ..................................................................................... 6-36
6.6.5
Setting range correction................................................................................... 6-37
6.6.6
Background adjustment ................................................................................... 6-37
6.6.7
Fine adjustment of black density ..................................................................... 6-38
6.6.8
RGB conversion method selection .................................................................. 6-38
6.6.9
Adjustment of saturation .................................................................................. 6-38
6.6.10
Background processing offset adjustment....................................................... 6-39
6.6.11
Surrounding void amount adjustment ............................................................. 6-39
6.7
Image Quality Adjustment (FAX Function)...................................................................... 6-40
6.7.1
Density adjustment .......................................................................................... 6-40
6.7.2
Adjustment of image density............................................................................ 6-41
6.8
Measurement at Replacement of High-Voltage Transformer.......................................... 6-42
6.8.1
Measurement................................................................................................... 6-42
6.9
Adjustment of the Scanner Section................................................................................. 6-46
6.9.1
Adjustment carriages-1 and -2 positions ......................................................... 6-46
6.9.2
Belt tension adjustment of the Scan motor ...................................................... 6-47
6.9.3
Carriages ......................................................................................................... 6-47
6.9.4
Lens unit .......................................................................................................... 6-52
6.10 Adjustment of the Paper Feeding System....................................................................... 6-55
6.10.1
Sheet sideways deviation caused by paper feeding ........................................ 6-55
6.10.2
Separation roller pressure force adjustment .................................................... 6-57
6.11 Adjustment of Developer Unit ......................................................................................... 6-58
6.12 Transfer Belt Deviation Adjustment................................................................................. 6-59
6.12.1
Transfer belt deviation check........................................................................... 6-59
6.12.2
Adjustment procedure...................................................................................... 6-60
6.13 Adjustment of Fuser Unit................................................................................................. 6-62
6.13.1
Adjustment of fuser roller pressure.................................................................. 6-62
6.13.2
Setting of fuser/pressure roller temperature .................................................... 6-64
6.13.3
Adjustment of fuser entrance guide ................................................................. 6-65
6.13.4
High-fusing mode............................................................................................. 6-66
6.13.5
Changing Printing Speed................................................................................. 6-66
6.14 Adjustment of the RADF ................................................................................................. 6-67
6.14.1
RADF position adjustment ............................................................................... 6-67
6.14.2
RADF height adjustment.................................................................................. 6-71
6.14.3
RADF image skew adjustment ........................................................................ 6-73
6.14.4
RADF leading edge position adjustment ......................................................... 6-75
6.14.5
RADF horizontal position adjustment .............................................................. 6-77
6.14.6
RADF copy ratio adjustment............................................................................ 6-78
6.14.7
RADF opening/closing switch adjustment ....................................................... 6-79
6.14.8
Original reading start sensor adjustment ......................................................... 6-80
6.14.9
Platen Sheet .................................................................................................... 6-83
6.15 Adjustment of Finisher .................................................................................................... 6-84
6.15.1
Adjusting the Height Sensor (PS1) .................................................................. 6-84
6.15.2
Adjusting the Alignment Position ..................................................................... 6-85
6.15.3
Adjusting the Staple Position (stapler movement range) ................................. 6-86
6.15.4
Adjusting the Buffer Roller Winding Amount.................................................... 6-88
6.16 Adjustment of Saddle stitch finisher ................................................................................ 6-91
6.16.1
Adjusting the Folding Position ......................................................................... 6-91
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e-STUDIO556/656/756/856(Ver03)
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