Toshiba E-STUDIO 2500C User manual

File No. SME06002500
R060721C4500-TTEC
Ver00_2006-09

© 2006 TOSHIBA TEC CORPORATION All rights reserved
Under the copyright laws, this manual cannot be reproduced in any form without prior written
permission of TOSHIBA TEC CORPORATION. No patent liability is assumed, however, with respect
to the use of the information contained herein.

Revision Record
File No. SME06002500
Date Rev.No Item Descriptions Remarks
September, 2006 00 --- Issue of the first version

The Imaging Manual is intended for customers using the Toshiba e-STUDIO2500c/3500c/3510c with a variety
of specific needs and inquiries for high image quality, such as:
xHow to obtain a clearer copy image
xHow to maintain the current image quality
xHow to make the text look sharper on the copy
The Toshiba MFPs are factory-configured to provide image quality settings that satisfy the majority of customers.
However, these settings may not be necessarily optimal for the specific needs of all customers. Proper image
quality adjustments can satisfy such needs. Most of the adjustments described in this manual must be performed
by a service technician, but a few of them can also be performed by the customer.
It is strongly recommended that this manual be fully utilized by not only the service technician, but also the sales
representative, who also has opportunities of obtaining customer feedback on the image quality. This manual
helps the sales representative to study and comprehend what kind of customer requirements for image quality
can be satisfied, to make proposals to customers to improve image quality, and to communicate the customers’
specific requirements with ease to the service technician. In addition, this manual is expected to facilitate the
marketing of Toshiba MFPs to prospective customers that have a specific demand for image quality and the
expansion of sales.
The adjustments described in this manual are all based on the requests of actual customers. Meeting their
specific wishes will only add to their satisfaction.
Please remember to read "Precautions after the completion of the adjustment," to which you must pay close
attention, after finishing the adjustment.
Precautions in Servicing
• For adjustments to be performed by the service technician, the precautions given in the Service Manual must be
stringently followed. The adjustments must be performed by a qualified service technician who has completed
the service training course.
• The default listed mentioned in this manual may be different from the actual ones, due to the timing of shipping
(firmware version). But note that the recommended values and acceptable value range stated in this manual
remain the same.
Purpose of the Imaging Manual

Icons
The following icons used in this manual denote the following:
: • Copy ——— An adjustment having an effect on copying in the Black mode (excluding
the Image smoothing mode)
•Printer ——– An adjustment having an effect on Black and White mode printing
*The adjustment will be effective, if "Black and White" is selected from
among the "Color" options on the Windows printer driver or if "Mono"
is selected from among the "Color Type" options on the Macintosh print
dialog.
•Scan ——— An adjustment having an effect on scanning in the Black mode
: • Copy ——–– An adjustment having an effect on copying in the Image smoothing mode
in the Black mode
• Scan ——— An adjustment having an effect on scanning in the Gray scale mode
: • Copy ——— An adjustment having an effect on copying in the Full color mode
•Printer ——– An adjustment having an effect on full-color printing
*The adjustment will be effective, if "Auto" or "Color" is selected from
among the "Color" options on the Windows printer driver or if "Auto" or
"Color" is selected from among the "Color Type" options on the
Macintosh print dialog.
•Scan ——— An adjustment having an effect on scanning in the Full color mode
: • Copy ——— An adjustment having an effect on copying in the Auto color mode
•Scan ——— An adjustment having an effect on scanning in the Auto color mode
: An adjustment having an effect on printing with the Windows PCL6 emulation printer
driver
: An adjustment having an effect on printing with the Windows PS3 emulation printer
driver
: An adjustment having effect on printing with the Macintosh printer driver
: An adjustment having an effect on an image stored in the e-Filing box by the scanning
functions (including Scan to Box, Scan to File and Scan to E-mail)
: An adjustment having an effect on an image stored in the e-Filing box by the copying
functions (Copy to Box)
: An adjustment having an effect on an image stored in the e-Filing box by the printing
functions (Print to Box)
: An adjustment having an effect on an image stored in the e-Filing box by the Fax and
Internet Fax functions (including Received Fax to Box and Received Internet Fax to Box)
PCL6
PS3
Scan to Box
Co
py
to Box
Print to Box
Fax to Box
Mac
Purpose of the Imaging Manual

1. General Adjustments – Copying, Printing and e-Filing (Output from Box)
1.1 To Obtain a Darker Image
1.2 To Adjust the Density of an Entire Copy
1.2.1 To Adjust the Density on a Solid Colored Image
1.2.2 To Adjust the Density on a Photo or Gradational Image
1.3 To Achieve the Image Quality Most Suitable for the Paper Used
(To eliminate blur and graininess from an image)
1.4 To Minimize Variations in the Image Quality under the Operating Conditions
(To optimally program image quality control)
1.5 To Correct Out-of-Registration Colors
2. Copier-specific Adjustments
2.1 To Copy Text Clearly (To eliminate faint, smudged or blurred text)
2.1.1 To Adjust the Copy Image Quality in the Black Mode
2.1.2 To Adjust the Copy Image Quality in the Full Color Mode
2.1.3 To Adjust the Copy Image Quality in the Auto Color Mode
2.2 To Closely Match the Color Balance of the Original
2.3 To Improve the Reproducibility of Gray
2.4 To Copy in Vivid Colors
2.5 To Make the Pale Area of the Original Look Darker and Sharper
(To improve the highlight reproducibility)
2.6 To Eliminate the Background Color
2.6.1 To Adjust the Copy Image Quality in the Black Mode
2.6.2 To Adjust the Copy Image Quality in the Full Color Mode
2.7 To Avoid Copying the Image Seen through the Back of a Page Printed on Thin Paper
2.7.1 To Adjust the Copy Image Quality in the Black Mode
2.7.2 To Adjust the Copy Image Quality in the Full Color Mode
2.8 To Eliminate Moiré
2.9 To Copy Sharply (To enhance sharpness)
2.10 To Make Photo Edges Look Softer
2.11 To Make Solid Filled Bold Text (Logo) Highly Colored
2.11.1 To Adjust the Copy Image Quality of a Black Logo
2.11.2 To Adjust the Copy Image Quality of a Colored Logo
2.12 To Sharply Contrast the Hues of Highlighters on the Copy
2.13 To Obtain a Good Color Balance on Thick Paper
2.14 To Obtain Smooth Gray-Scale Photo Images
2.15 To Change the Threshold in Auto Color Mode
(To change the threshold between the Full Color mode and the Black mode to meet the user’s needs)
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i

2.16 To Adjust the Twin-Color Copy Image Quality
2.16.1 To Adjust the Tint of Colors other than Black
2.16.2 To Adjust the Reproducibility of Black in the Red and Black Mode
2.16.3 To Adjust the Boundary between Black and Colors other than Black
2.17 To Adjust the Image Quality Scanned from the RADF
3. Printer-specific Adjustments
3.1 To Maintain a Steady Color Balance
3.2 To Maintain a Steady Color Balance on Thick Paper or Special Paper
3.3 To Obtain the Desired Color Balance
3.4 To Closely Match the Color Balance on the Monitor
3.5 To Maintain a Uniform Gray Hue
(To maintain Consistency in Gray among Text, Photos and Graphics)
3.6 To Use Only the Black Toner to Reproduce Gray Areas
(To use only the black toner to reproduce black-and-white photos or gradational images)
3.7 To Easily Adjust the Overall Brightness
3.8 To Adjust the Overall Saturation
3.9 To Easily Adjust the Overall Contrast
3.10 To Obtain a Sharper Print Image
3.11 To Obtain a Softer Image
3.12 To Make Low-resolution Data Look Finer (To soften an image)
3.13 To Eliminate Smudges from Highly Colored Text and Lines
(To prevent toner scattering around text and lines where a large amount of toner is used)
3.14 To Clearly Print Light-Colored Thin Lines or Text
3.14.1 To Adjust the Print Image Quality in the Color Mode
3.14.2 To Adjust the Print Image Quality in the Black and White Mode
3.15 To Make the Light-Colored Area Darker on the Printout
3.16 To Clearly Print Thin Lines/Double Lines
3.17 To Decrease the Image Density and Save Toner (To Print in the Toner Save Mode)
3.18 To Adjust the Image Density in the Toner Save Mode
3.19 To Print Illegible Gray or Colored Text in Black
3.20 To Ignore Blank Pages for Printing
3.21 To Sharply Print Black Text
3.22 To Prevent Dark Toner from Coming Off
3.23 To Register the Image Quality Adjusted Corresponding to a Preference
(To use the Custom Color Settings)
3.24 To Print a Full-Color Original in Two Colors
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ii

4. e-Filing-specific Adjustments
4.1 To Clearly Store a B/W Image in the Auto Color Mode
4.2 To Store an Original while Reducing the File Size
4.3 To Store a Color Photo Image, while Minimizing Moiré
4.4 To Match the Color Balance on the Original
(To adjust the color balance in Print to Box)
4.5 To Scan and Print, while Minimizing Moiré
4.6 To Finely Print the Image Stored in the e-Filing box
(To print images stored through Copy to Box or Print to Box)
4.7 To Store an Image Suitable for Displaying on the Monitor or Image Editing
4.8 To Finely Print Color Images Scanned and Stored
(To print images stored through Scan to Box)
5. Scanning-specific Adjustments
5.1 To Clearly Scan Text (To reduce noise around text)
5.2 To Scan an Original, while Eliminating the Background Color
(To eliminate the background density)
5.3 To Clearly Scan and Print an Original in Black and White
(To improve gradation and reduce graininess)
5.4 To Scan the Original, while Reducing the File Size
5.4.1 To Reduce the File Size by Changing the Options when Scanning the Original
5.4.2 To Reduce the File Size in Slim PDF
5.5 To Sharply Scan the Original (To increase the sharpness intensity)
5.6 To Scan an Original, while Enhancing Black
5.7 To Scan an Original with the Desired Gradation
5.8 To Register the Original Mode Optimal for a Particular Type of Original
(To have "Custom" selected)
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iii

e-STUDIO2500c/3500c/3510c
1.1 To Obtain a Darker Image
Before the adjustment After the adjustment
The output image looks light and blurred. The output image looks darker and sharper.
Explanation
When an original containing photo images or gradational images is printed, the output image sometimes looks
light and blurred. Perform image quality control or automatic calibration, and adjust the transfer roller bias
output, in order to obtain a darker and sharper image.
Procedures
*Perform the adjustment in accordance with the procedures below.
*Only the service technician must use procedures (1), (3) and (4).
*Both the service technician and the user can use procedure (2).
(1) Enter adjustment mode [05]. Select code [396]. Press the [START] button.
•Image quality control will be forcibly performed to correct variations in density.
After exercising image quality control, use the next procedure.
(2) Perform automatic calibration to correct variations in image density.
*"ADMIN" is selected from among the "CALIBRATION DISPLAY LEVEL" options by default. In other
words, an administrator is authorized to operate automatic calibration. But "USER" can also be selected to
allow the user to operate it. Refer to the User Functions Guide for further information regarding how to
select the "CALIBRATION DISPLAY LEVEL" option.
1. General Adjustments – Copying, Printing and e-Filing (Output from Box)
1.1