Toshiba e-Studio Imaging 6520c - Manual (Page 62)

e-STUDIO5520C/6520C/6530C © 2008 TOSHIBA TEC CORPORATION All rights reserved
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2. Copier-specific Adjustments
2.6.2 To Adjust the Copy Image Quality in the Full Color Mode
* You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed
below. You can use one procedure in conjunction with another. But if this changes the image quality more
than required or loses the effectiveness of the adjustment, restore the settings made in the previously used
procedure to the original ones. Then use other procedures.
* Both the service technician and the user can use procedures (1) and (4).
* Only the service technician must use procedures (2) and (3).
(1) Press the [AUTO] button on the Control Panel to select the automatic density adjustment.
(2) Press the [IMAGE] button on the Control Panel. Press the [BACKGROUND ADJUSTMENT] button.
Press the [LIGHT] button to decrease the background density.
After decreasing the background density, copy and check the image quality.
With the background density set to the minimum, if further image quality adjustments are still necessary, the
service technician must use the next procedure.
(3) Enter adjustment mode [05]. Change the values for codes [1688 to 1692] and [1698 to 1702] to adjust the
background density.
Adjustment Original mode [05] code Recommended value
Acceptable
value range
Default
Text/Photo 05-1688
Text 05-1689
Printed image 05-1690
Photo 05-1691
Automatic offsetting
adjustment for
background processing
Map 05-1692
Text/Photo 05-1698
Text 05-1699
Printed image 05-1700
Photo 05-1701
Manual offsetting
adjustment for
background processing
Map 05-1702
Set a value smaller than 128. 0 to 255 128
* The value for automatic offsetting adjustment for background processing will be applied, only if the
automatic copy density mode is selected. On the other hand, the value for manual offsetting adjustment for
background processing will be applied, only if the manual copy density mode is selected.
* Set the value in increments of approximately 10, while checking the copy image until the optimum value is
obtained.
* The value for the code corresponding to the original mode (Text/Photo, Text, or Printed image) will affect
the copy image quality in the Full color mode and the Auto color mode.
* The value adjusted for the background density is shared in the Full color mode with the Printed image
mode selected and in the Black mode with the Photo mode selected. Therefore, adjusting the copy image
quality in either of the modes affects that in the other mode. Perform copy image quality adjustment in the
mode that is used for the adjustment, while checking that in the other mode.
* In the manual density adjustment, images are processed with the highlighting reproducibility given priority.
Therefore it is recommended to select the automatic density adjustment in order to make the background
lighter.