Toshiba 6520c, 5520c manual To Adjust the Copy Image Quality in the Black Mode

Models: 6520c 5520c

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2. Copier-specific Adjustments

2.6.1 To Adjust the Copy Image Quality in the Black 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 procedure (1).

*Only the service technician must use procedures (2) to (4).

(1) 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.

(2) Enter adjustment mode [05]. Change the values for codes [7033], [7034], [7041] to [7044], [7048] and [7049] to adjust the density level of the background.

 

 

 

 

 

 

 

 

 

 

 

 

Accep

 

 

 

 

Adjustment

 

 

Original mode

 

 

[05] code

 

 

Recommended

 

table

 

Default

 

 

 

 

 

 

 

 

value

 

value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

range

 

 

 

 

Manual density

 

Text/Photo

05-7041

 

 

 

 

 

 

 

 

 

 

Text

05-7042

 

 

 

 

 

 

 

 

 

adjustment

 

Photo

05-7048

 

 

Set a value smaller

0 to

 

 

 

 

 

 

 

Image smoothing

05-7049

 

 

128

 

 

 

 

 

Text/Photo

05-7033

 

 

than 128.

255

 

 

 

 

 

 

 

 

 

 

 

Manual adjustment

 

Text

05-7034

 

 

 

 

 

 

 

 

 

 

Photo

05-7043

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image smoothing

05-7044

 

 

 

 

 

 

 

 

*Set the value in increments of approximately 25, while checking the copy image until the optimum value is obtained.

After adjusting the background density, copy and check the copy image quality.

If further image quality adjustments are still necessary, use the next procedure.

(3)Enter adjustment mode [05]. Change the values for codes [590] to [592] to adjust the gamma balance in each of low- and medium-density areas.

Original

 

[05] code

 

Subcode

Recommended value

Acceptable

Default

mode

 

 

value range

 

 

 

 

 

 

Text/Photo

05-590

 

0/1

Set a value smaller than 128.

0 to 255

128

Text

05-591

 

0/1

Photo

05-592

 

0/1

 

 

 

* Set the value in increments of approximately 20, while checking the copy image until the optimum value is obtained.

e-STUDIO5520C/6520C/6530C

© 2008 TOSHIBA TEC CORPORATION All rights reserved

 

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Toshiba 6520c To Adjust the Copy Image Quality in the Black Mode, Accep Adjustment Original mode Code Recommended Default

6520c, 5520c specifications

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