5.Scanning-specific Adjustments
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5-17
Procedures
The service technician must perform all adjustments.
(1) Select [05 ADJUSTMENT MODE]. Change the values for codes [7480], [7485], [7487] and [7488] to
adjust the gamma curve balance of the low, middle and high density areas.
• Set the value in increments of approximately 20, while checking the scanned-in image until the
optimum value is obtained.
• The subcode varies according to the area where the density is adjusted. Refer to the table below
and set the subcode for the area to be adjusted.
• Gradation in the Black mode will vary, if the middle density area is mainly adjusted. But remember
that adjusting the low or high density area will rarely affect the gradation in the Black mode.
Caution after the adjustment
Nothing in particular.
Color mode Original mode [05] code Subcode Recommended value
Acceptable
value range
Default
Black
Text/Photo 05-7485 0/1/2
Set a value smaller
than 128 to decrease
the density.
Set a value larger than
128 to increase the
density.
0 to 255 128
Photo 05-7487 0/1/2
User Custom 05-7480 0/1/2
Gray scale --- 05-7488 0/1/2
Subcode Area where the density is adjusted
0 Low density area
1 Middle density area
2 High density area
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