Toshiba E-STUDIO 2500C - To Adjust the Copy Image Quality of a Black Logo

e-STUDIO2500c/3500c/3510c
2.11.1 To Adjust the Copy Image Quality of a Black Logo
* 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.
* Only the service technician must use procedures (1), (2), and (5).
* Both the service technician and the user can use procedures (3) and (4).
(1) Make sure that the color of the solid filled logo is not printed out of registration. If it is, perform color
registration control.
* For further information regarding the adjustment procedures, refer to 1.5. To Correct Out-of-Registration
Colors or the Service Manual.
After correcting out-of-registration colors, copy and check the copy image quality.
If further image quality adjustments are still necessary, use the next procedure.
(2) Enter adjustment mode [05]. Change the values for codes [7811/7812] or [7827/7828] to adjust the level of
black headline text.
Color mode Original mode [05] code Recommended value
Acceptable
value range
Default
Text/Photo 05-7811
Full color
Text 05-7812
Set a value larger than 4. 0 to 8 0
Text/Photo 05-7827
Auto color
Text 05-7828
Set a value larger than 4. 0 to 8 0
* Set the value in increments of approximately 1, while checking the copy image until the optimum value is
obtained.
After adjusting the level of black headline text, copy and check the copy image quality.
If further image quality adjustments are still necessary, use the next procedure.
(3) Perform color balance adjustment to enhance black.
• Use steps (a) through (d) to perform the adjustment.
(a) Press the [IMAGE] button on the Control Panel.
(b) Press the [COLOR BALANCE] button.
(c) Press the [+] button to enhance the tint of [BLACK].
* Press the [DETAIL] button. The tint of the color can be adjusted according to the density area
(low-, medium- or high-density area).
(d) Press the [ENTER] button.
After adjusting the tint of black, copy and check the copy image quality.
With the tint of black set to the maximum, if further image quality adjustments are still necessary, use the
next procedure.
2. Copier-specific Adjustments
2.11