Toshiba e-STUDIO2010AC User manual

File No. SME18003400
R180821V5800-TTEC
Ver00F_2018-10

Trademarks
• The official name of Windows® 7 is Microsoft Windows 7 Operating System.
• The official name of Windows® 8.1 is Microsoft Windows 8.1 Operating System.
• The official name of Windows® 10 is Microsoft Windows 10 Operating System.
• The official name of Windows Server® 2008 is Microsoft Windows Server 2008 Operating System.
• The official name of Windows Server® 2012 is Microsoft Windows Server 2012 Operating System.
• The official name of Windows Server® 2016 is Microsoft Windows Server 2016 Operating System.
• Microsoft, Windows, Windows NT, and the brand names and product names of other Microsoft
products are trademarks of Microsoft Corporation in the US and other countries.
• Apple, AppleTalk, Macintosh, Mac, Mac OS, Safari, iPhone, iPod touch, TrueType, AirPrint, AirPrint
logo, and iPad are trademarks of Apple Inc.
• IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used
under license.
• Adobe, Acrobat, Reader, and PostScript are trademarks or Adobe Systems Incorporated.
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Foundation in the U.S. and other countries.
• IBM, AT and AIX are trademarks of International Business Machines Corporation.
• NOVELL®, NetWare® and NDS® are trademarks of Novell, Inc.
• e-STUDIO, e-BRIDGE, and TopAccess are trademarks of Toshiba TEC Corporation.
• Other company names and product names in this manual are the trademarks of their respective
companies.
© 2018 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.

GENERAL PRECAUTIONS REGARDING THE SERVICE
The installation and service shall be done by a qualified service technician.
1. Transportation/Installation
- When transporting/installing the equipment, employ two or more persons and be sure to hold the
positions as shown in the figure.
The equipment is quite heavy and weighs approximately 78.1 kg (172.2 lb.), therefore pay full
attention when handling it.
- Be sure not to hold the movable parts or units (e.g. the control panel, ADU or RADF or DSDF) when
transporting the equipment.
- Be sure to use a dedicated outlet with AC 110 V/15 A, 120 V/12 A, 220 - 240 V/8 A for its power
source.
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and
direct sunlight.
- Provide proper ventilation since the equipment emits a slight amount of ozone.
- To insure adequate working space for the copying operation, keep a minimum clearance of 30 cm
(11.8”) on the left, 80 cm (32”) on the right and 20 cm (7.9”) on the rear.
- The equipment shall be installed near the socket outlet and shall be easily accessible.
- Be sure to fix and plug in the power cable securely after the installation so that no one trips over it.
- If the unpacking place and where the equipment is to be installed differ, perform image quality
adjustment (automatic gamma adjustment) according to the temperature and humidity of the place
of installation and the paper to be used.
- When the equipment is used after the option is removed, be sure to install the parts or the covers
which have been taken off so that the inside of the equipment is not exposed.
- Do not lift the machine by the areas in the figure that are shaded when lifting it.

- Do not use an ozone generator near the MFP. Or, place any ozone generator as far away from the
MFP as possible.
2. General Precautions at Service
- Be sure to turn the power OFF and unplug the power cable during service (except for the service
should be done with the power turned ON).
- After the power cable is disconnected, an electric charge may remain in the boards of the
equipment. Therefore, be sure to disconnect or connect the connectors when about 1 minute (e.g.:
the time for taking off the rear cover) has passed after the power cable is disconnected.
- The fuse could be in the neutral. The mains supply shall be disconnected to de-energize the phase
conductors.
- Unplug the power cable and clean the area around the prongs of the plug and socket outlet once a
year or more. A fire may occur when dust lies on this area.
- When the parts are disassembled, reassembly is the reverse of disassembly unless otherwise
noted in this manual or other related documents. Be careful not to install small parts such as
screws, washers, pins, E-rings, star washers, harnesses in the wrong places.
- Basically, the equipment should not be operated with any parts removed or disassembled.
- The PC board must be stored in an anti-electrostatic bag and handled carefully using an antistatic
wrist strap since the ICs on it may be damaged due to static electricity.
Caution: Before using the antistatic wrist strap, unplug the power cable of the equipment and
make sure that there are no charged objects which are not insulated in the vicinity.
- e-STUDIO2515AC/3015AC/3515AC/4515AC/5015AC uses a laser diode. Avoid expose to laser
beam during service. Be sure not to expose your eyes to the laser beam. Do not insert reflecting
parts or tools such as a screwdriver on the laser beam path. Remove all reflecting metals such as
watches, rings, etc. before starting service.
- Be sure not to touch high-temperature sections such as the fuser unit, damp heater and areas
around them.
- Be sure not to touch high-voltage sections such as the chargers, transfer belt, 2nd transfer roller,
developer, high-voltage transformer and power supply unit. Especially, the board of these
components should not be touched since the electric charge may remain in the capacitors, etc. on
them even after the power is turned OFF.
- Make sure that the equipment will not operate before touching potentially dangerous places (e.g.
rotating/operating sections such as gears, belts pulleys, and fans).
- Be careful when removing the covers since there might be the parts with very sharp edges
underneath. Avoid exposing your eyes to laser beam in e-STUDIO2515AC/3015AC/3515AC/
4515AC/5015AC.
- When servicing the equipment with the power turned ON, be sure not to touch live sections and
rotating/operating sections.
- Use designated jigs and tools.
- Use recommended measuring instruments or equivalents.
- Return the equipment to the original state and check the operation when the service is finished.
- Be very careful to treat the touch panel gently and never hit it. Breaking the surface could cause
malfunctions.
-Do not leave plastic bags where children can get at them. This may cause an accident such as
suffocation if a child puts his/her head into a bag. Plastic bags of options or service parts must be
brought back.
- There is a risk of an electric shock or fire resulting from the damage to the harness covering or
conduction blockage. To avoid this, be sure to wire the harness in the same way as that before
disassembling when the equipment is assembled/disassembled.
3. General operations
- Check the procedures and perform them as described in the Service Manual.
- Make sure you do not lose your balance.
- Avoid exposure to your skin and wear protective gloves as needed.
4. Important Service Parts for Safety
- The breaker, door switch, fuse, thermostat, thermofuse, thermistor, batteries, IC-RAMs including
lithium batteries, etc. are particularly important for safety. Be sure to handle/install them properly. If

these parts are short-circuited and their functions become ineffective, they may result in fatal
accidents such as burnout. Do not allow a short-circuit and do not use the parts not recommended
by Toshiba TEC Corporation.
5. Cautionary Labels
- During servicing, be sure to check the rating plate and cautionary labels to see if there is any dirt on
their surface and if they are properly stuck to the equipment.
6. Disposal of the Equipment, Supplies, Packing Materials, Used Batteries and IC-RAMs
- Regarding the recovery and disposal of the equipment, supplies, packing materials, follow the
relevant local regulations or rules.
7. Batteries and IC RAMs including lithium batteries etc.
CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE RELEVANT LOCAL REGULATIONS OR
RULES.

Revision Record
Ver00 <2018.10.19>
Page Contents
All Initial release

Purpose of the Imaging Manual
The Imaging Manual is intended for customers using the Toshiba e-STUDIO2010AC/2510AC/2515AC/
3015AC/3515AC/4515AC/5015AC with a variety of specific needs and inquiries for high image quality,
such as:
• How to obtain a clearer copy image
• How to maintain the current image quality
• How 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 "Caution after 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 Mac 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 Mac 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 PCL emulation
printer driver
: An adjustment having an effect on printing with the Windows PS emulation printer
driver
: An adjustment having an effect on printing with the Windows XPS emulation
printer driver
:An adjustment having effect on printing with the Mac 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)
PCL
PS
XPS
Mac
Scan to Box
Cop
y
to Box
Print to Box
Fax to Box

© 2018 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC
i
Table of Contents
1. General Adjustments – Copying, Printing and e-Filing
(Output from Box)
1.1 To Obtain a Darker Image ............................................................................................. 1-1
1.2 To Adjust the Density on a Solid Colored Image........................................................... 1-7
1.3 To Achieve the Image Quality Most Suitable for the Paper Used
(To eliminate blur and graininess from an image) ....................................................... 1-12
1.4 To Minimize Variations in the Image Quality under the Operating Conditions
(To optimally program image quality control) ............................................................. 1-17
1.5 To Correct Out-of-Registration Colors......................................................................... 1-25
1.6 To Adjust Printing Positions on Front and Back Sides in the duplex mode................. 1-29
2. Copier-specific Adjustments
2.1 To Make Copy Suitable for the Original......................................................................... 2-1
2.2 To Copy Text Clearly (To eliminate faint, smudged or blurred text) .............................. 2-3
2.2.1 To Adjust the Copy Image Quality in the Black Mode ............................................. 2-4
2.2.2 To Adjust the Copy Image Quality in the Full Color Mode .................................... 2-10
2.3 To Closely Match the Color Balance of the Original .................................................... 2-15
2.4 To Improve the Reproducibility of Gray ....................................................................... 2-20
2.5 To Copy in Vivid Colors ............................................................................................... 2-23
2.6 To Make the Pale Area of the Original Look Darker and Sharper
(To improve the highlight reproducibility)..................................................................... 2-28
2.7 To Eliminate the Background Color /
To Copy Dark Text by Eliminating Fogs around It....................................................... 2-32
2.7.1 To Adjust the Copy Image Quality in the Black Mode ........................................... 2-33
2.7.2 To Adjust the Copy Image Quality in the Full Color Mode .................................... 2-35
2.8 To Avoid Copying the Image Seen through the Back of a Page Printed
on Thin Paper .............................................................................................................. 2-38
2.8.1 To Adjust the Copy Image Quality in the Black Mode ........................................... 2-39
2.8.2 To Adjust the Copy Image Quality in the Full Color Mode .................................... 2-41
2.9 To Eliminate Moiré....................................................................................................... 2-43
2.10 To Copy Sharply (To enhance sharpness).................................................................. 2-47
2.11 To Make Photo Edges Look Softer.............................................................................. 2-50
2.12 To Make Solid Filled Bold Text (Logo) Highly Colored................................................ 2-54
2.12.1 To Adjust the Copy Image Quality of a Black Logo............................................... 2-55
2.12.2 To Adjust the Copy Image Quality of a Colored Logo ........................................... 2-57
2.13 To Sharply Contrast the Hues of Highlighters on the Copy......................................... 2-59
2.14 To Obtain a Good Color Balance on Thick Paper ....................................................... 2-63
2.15 To Obtain Smooth Gray-Scale Photo Images ............................................................. 2-68
2.16 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) ................................................................................................ 2-69
2.17 To Adjust the Twin-Color Copy Image Quality ............................................................ 2-72
2.17.1 To Adjust the Tint of Colors other than Black ........................................................ 2-73
2.17.2 To Adjust the Boundary between Black and Colors other than Black ................... 2-74
2.17.3 To Adjust the Tint of Specified Colors for Twin-Color or Single-Color Copying .... 2-75
2.18 To Adjust the Image Quality Scanned from the DF ..................................................... 2-77
2.19 To Program Frequently Used Copy Settings (To use Custom Mode) ......................... 2-80
2.19.1 To Adjust User Custom Mode Settings in Black Mode.......................................... 2-80
2.19.2 To Adjust User Custom Mode Settings in Full Color Mode ................................... 2-83
2.20 To Copy While Erasing Shadow Outside of Image ..................................................... 2-88
2.21 To Avoid Copying Blank Page of Original Scanned with DF ....................................... 2-90
2.22 To Obtain Image in Even Density Level ...................................................................... 2-92
2.23 To Improve Reproducibility of Red Seal Color ............................................................ 2-94

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2.24 To Reduce Streaks at Scanning with DF..................................................................... 2-95
2.24.1 When adjusting the image quality of the Black mode............................................ 2-96
2.24.2 When adjusting the image quality of the Full color mode...................................... 2-97
2.25 The Color Reproduction of the Back Side Differs from that for the Front Side
at DSDF Scanning....................................................................................................... 2-98
2.26 To Improve the Gradation Reproduction of Dark Portions in Photos .......................... 2-99
2.27 To Improve the Reproducibility of Dark-color Text / To Clearly Make Halftone
Dots in Gray with Color Copying ............................................................................... 2-101
2.28 To Make a Copy by Removing all Colors other than Black ....................................... 2-103
3. Printer-specific Adjustments
3.1 Adjustment Method........................................................................................................ 3-1
3.1.1 Gamma Balance Adjustment................................................................................... 3-2
3.1.2 PureBlack/Gray Threshold Value Adjustment ......................................................... 3-4
3.1.3 Background Adjustment .......................................................................................... 3-7
3.1.4 Sharpness Adjustment ............................................................................................ 3-9
3.1.5 Color Balance Adjustment..................................................................................... 3-13
3.1.6 Fine Line / Text Density Adjustment...................................................................... 3-18
3.1.7 Graphic Line Width Adjustment............................................................................. 3-20
3.1.8 Blurred Text in Black Adjustment .......................................................................... 3-22
3.1.9 Toner Used Amount Adjustment ........................................................................... 3-24
3.1.10 Halftone Adjustment (when changing per user) .................................................... 3-26
3.1.11 Halftone Adjustment (when changing all print jobs) .............................................. 3-28
3.1.12 Pulse Width Adjustment ........................................................................................ 3-31
3.1.13 Restrictions on Use of Printer Functions ............................................................... 3-33
3.2 To Make Print Suitable for the Original........................................................................ 3-34
3.3 To Maintain a Steady Color Balance ........................................................................... 3-38
3.3.1 To Maintain a Steady Color Balance on Plain Paper ............................................ 3-38
3.3.2 To Maintain a Steady Color Balance on Thick Paper or Special Paper ................ 3-40
3.4 To Adjust Colors .......................................................................................................... 3-43
3.4.1 To Adjust Color Balance and Density.................................................................... 3-43
3.4.2 To Closely Match the Color Balance on the Monitor ............................................. 3-44
3.4.3 To Maintain a Uniform Gray Hue
(To maintain Consistency in Gray among Text, Photos and Graphics) ................ 3-47
3.4.4 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)............................................................................................... 3-50
3.4.5 To Easily Adjust the Overall Brightness ................................................................ 3-51
3.4.6 To Adjust the Overall Saturation ........................................................................... 3-54
3.4.7 To Easily Adjust the Overall Contrast.................................................................... 3-58
3.5 To Print Images in Sharp/Soft ..................................................................................... 3-61
3.6 To Adjust Text and Lines............................................................................................. 3-63
3.6.1 To Reduce Jaggies on Text and Lines (Improvement by means of halftone
adjustment)............................................................................................................ 3-63
3.6.2 To Reduce Jaggies on Text and Lines (Improvement by means
of density adjustment) ........................................................................................... 3-66
3.6.3 To Adjust the Line Thickness ................................................................................ 3-68
3.6.4 To Suppress Smudges on Text and Lines ............................................................ 3-70
3.6.5 To Clearly Print Double Lines and Text................................................................. 3-72
3.6.6 To Print Illegible Gray or Colored Text in Black .................................................... 3-74
3.7 To Make the Light-Colored Area Darker on the Printout ............................................. 3-76
3.8 To Decrease the Image Density and Save Toner ....................................................... 3-78
3.8.1 To Print in the Toner Saving Mode........................................................................ 3-78
3.8.2 To Adjust the Image Density in the Toner Saving Mode ....................................... 3-81
3.9 To Ignore Blank Pages for Printing.............................................................................. 3-84

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3.10 To Prevent Dark Toner from Coming Off..................................................................... 3-87
3.11 To Register the Image Quality Adjusted Corresponding to a Preference
(To use the Custom Color Settings) ............................................................................ 3-88
3.12 To Print a Full-Color Original in Two Colors ................................................................ 3-91
3.12.1 To Adjust Colors .................................................................................................... 3-92
3.12.2 To Adjust the Sharpness ....................................................................................... 3-96
3.12.3 To Print a Full-Color Original in Two Colors.......................................................... 3-98
3.13 To Use ICC Profile....................................................................................................... 3-99
3.13.1 To Create ICC Profiles for Printing on the Paper to be Used .............................. 3-100
3.13.2 To Print Precise Colors Using Existing RGB Source ICC Profiles ...................... 3-105
3.13.3 To Perform Simulated Printing with CMYK Inks of Each Ink Manufacturer......... 3-109
3.13.4 To Print Using Custom RGB Profiles .................................................................. 3-113
3.13.5 To Convert Colors with Specified Source ICC Profiles (Not Using
Embedded ICC Profiles)...................................................................................... 3-117
3.13.6 To Perform Further Adjustment After Using ICC Profiles .................................... 3-122
3.14 To Improve the Reproducibility of Red Seal Color .................................................... 3-125
3.15 To Suppress the Unevenness and Jitteriness on Images,
White Voids in the Lines on Background and Around Text ....................................... 3-127
3.16 To Suppress Color Misalignment .............................................................................. 3-128
4. e-Filing-specific Adjustments
4.1 To Clearly Store a B/W Image in the Auto Color Mode ................................................. 4-1
4.2 To Store an Original while Reducing the File Size ........................................................ 4-3
4.3 To Match the Color Balance on the Original
(To adjust the color balance in Print to Box).................................................................. 4-5
4.4 To Scan and Print, while Minimizing Moiré.................................................................... 4-7
4.5 To Finely Print the Image Stored in the e-Filing box
(To print images stored through Copy to Box or Print to Box)....................................... 4-9
4.6 To Store an Image Suitable for Displaying on the Monitor or Image Editing............... 4-11
4.7 To Finely Print Color Images Scanned and Stored
(To print images stored through Scan to Box)............................................................. 4-13
4.8 Appendix...................................................................................................................... 4-16
5. Scanning-specific Adjustments
5.1 To Clearly Scan Text (To reduce noise around text)..................................................... 5-1
5.2 To Scan an Original, while Eliminating the Background Color
(To eliminate the background density) .......................................................................... 5-3
5.3 To Clearly Scan and Print an Original in Black and White
(To improve gradation and reduce graininess).............................................................. 5-5
5.4 To Scan the Original, while Reducing the File Size....................................................... 5-6
5.4.1 To Reduce the File Size by Changing the Options when Scanning the Original .... 5-7
5.4.2 To Reduce the File Size in Slim PDF .................................................................... 5-10
5.5 To Sharply Scan the Original (To increase the sharpness intensity)........................... 5-12
5.6 To Scan an Original, while Enhancing Black............................................................... 5-14
5.7 To Scan an Original with the Desired Gradation ......................................................... 5-16
5.8 To Register the Original Mode Optimal for a Particular Type of Original
(To have “Custom” selected) ....................................................................................... 5-18
5.9 To Eliminate Shading around Scanned Images .......................................................... 5-22
5.10 To Scan Yellow Clearly ............................................................................................... 5-23
5.11 To Reduce Streaks in Scanning with DF..................................................................... 5-25
5.12 To Change Judgment Area of [Omit Blank Page] and [Auto Color] (To make
judgment properly for originals whose images are only located near the edges)........ 5-27
5.13 To Make a Scan by Removing all Colors other than Black ......................................... 5-29

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© 2018 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC
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1. General Adjustments – Copying, Printing and e-Filing (Output from Box)
1.1 To Obtain a Darker Image
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.
• Both the service technician and the user can perform procedure (1).
• Only the service technician must perform procedures (2) and (3).
(1) Perform automatic calibration to correct variations in image density.
A privilege to perform automatic calibration is set to Administrator by default but this can be changed
to the User.
For how to change the privilege, refer to the MFP Management Guide.
Before adjustment After adjustment
The output image looks light and blurred. The output image looks darker and sharper.

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
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To adjust the copy image quality
Use steps (a) through (i) to perform automatic calibration.
(a) Press [User Functions -User-] on [Home] screen to enter the “User Functions” menu.
(b) Press [Admin].
(c) Enter the 6 to 64 digit administrator password. Press [OK].
(d) Press [General].
(e) Press [Calibration].
(f) Press [Copy].
(g) Press [Calibration] to print out the test chart.
(h) Place the printed test chart on the original glass.
(i) Press the [START] button to perform calibration. When the calibration comes to an end, the
message “Scanning and calibrating” will disappear.
• As a result of the above steps, the copy image quality will be corrected in the Full color mode and
Black mode simultaneously.
• To correct variations in image density by performing automatic calibration for each paper type,
refer to “(1) Perform automatic calibration for each paper type to correct variations in image
density” in "2.14 To Obtain a Good Color Balance on Thick Paper".
After performing automatic calibration, print and check the image quality.
If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer)
roller bias output.
To adjust the print image quality
• Image quality adjustment for 600 dpi full-color printing
Use steps (a) through (i) to perform automatic calibration.
(a) Press [User Functions -User-] on [Home] screen to enter the “User Functions” menu.
(b) Press [Admin].
(c) Enter the 6 to 64 digit administrator password. Press [OK].
(d) Press [General].
(e) Press [Calibration].
(f) Press [600 dpi Print].
(g) Press [Calibration] to print out the test chart.
(h) Place the printed test chart on the original glass.
(i) Press the [START] button to perform calibration. When the calibration comes to an end, the
message “Scanning and calibrating” will disappear.
• To correct variations in image density by performing automatic calibration for each paper
type, refer to "3.3 To Maintain a Steady Color Balance".
After performing automatic calibration, print and check the image quality.
If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer)
roller bias output.

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
© 2018 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC
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• Image quality adjustment for 1200 dpi high-resolution printing
Press [1200 dpi Print] in step (f), in the same way as image adjustment for 600 dpi full-color
printing noted above.
After performing automatic calibration, print and check the image quality.
If further image quality adjustments are necessary, go to step (2) to adjust the transfer (2nd transfer)
roller bias output.
• Image quality adjustment with simple calibration
Use steps (a) through (d) to perform simple calibration.
(a) Press [User Functions -User-] on [Home] screen to enter the “User Functions” menu.
(b) Press [General].
(c) Press [Auto Calibration].
(d) The message “Set Auto Calibration Yes or No.” appears. Press [Yes].
After performing simple calibration, print the image and check its quality.
If further image quality adjustments are necessary, carry out the next procedure.

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
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(2) Select [05 ADJUSTMENT MODE]. Change the values for codes [2934 to 2937] to adjust the transfer
(2nd transfer) roller bias output.
(Adjust the offset voltage of transfer roller bias so as to increase the density of the image.)
The code to use varies depending on the paper type. Adjust the value for [05] code corresponding to
the paper type for which you would like to improve the image quality. Set the value within a range of
“2” to “8” to obtain the highest density of the image.
Paper type [05] code Sub
code
Recommended
value
Acceptable
value range
Default
Full color
Front
Plain/Thick
paper
05-2934
0
2 to 8 0 to 10 5
Thick paper 1 1
Thick paper 2 2
Thick paper 3* 3
Transparency
(OHP film) 4
Special paper 1 5
Special paper 2 6
Recycled paper 7
Thick paper 4* 8
Thin paper* 9
Envelope 10
Special paper 3* 11
Back
Plain/Thick
paper
05-2935
0
2 to 8 0 to 10 5
Thick paper 1 1
Thick paper 2 2
Thick paper 3* 3
Special paper 1 5
Special paper 2 6
Recycled paper 7
Thick paper 4* 8
Thin paper* 9
Envelope 10
Special paper 3* 11

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
© 2018 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC
1-5
• Front” refers to the printed side in the simplex mode or the side that is delivered facing upwards in
the duplex mode.
“Back” refers to the printed side that is delivered facing downwards in the duplex mode.
• The table below shows you the acceptable paper weight for the paper type.
* e-STUDIO2515AC/3015AC/3515AC/4515AC/5015AC only
• After adjusting the transfer roller bias output, perform automatic calibration in the same manner as
in procedure (1).
<Hint>
• The transfer voltage increases as the setting value is increased. It is usually recommended that
the setting value be increased, when you print on thick paper or paper with asperities on its
surface. On the other hand, the setting value should be decreased, when you print on thin paper.
Black
Front
Plain/Thick
paper
05-2936
0
2 to 8 0 to 10 5
Thick paper 1 1
Thick paper 2 2
Thick paper 3* 3
Transparency
(OHP film) 4
Special paper 1 5
Special paper 2 6
Recycled paper 7
Thick paper 4* 8
Thin paper* 9
Envelope 10
Special paper 3* 11
Back
Plain/Thick
paper
05-2937
0
2 to 8 0 to 10 5
Thick paper 1 1
Thick paper 2 2
Thick paper 3* 3
Special paper 1 5
Special paper 2 6
Recycled paper 7
Thick paper 4* 8
Thin paper* 9
Envelope 10
Special paper 3* 11
Paper type Acceptable paper weight
Plain paper 60 to 80 g/m² 16 to 21 lb. Bond
Thick paper 81 to 105 g/m² 22 to 28 lb. Bond
Thick paper 1 106 to 163 g/m² Max. 60 lb. Cover
Thick paper 2 164 to 209 g/m² Max. 110 lb. Index
Thick paper 3* 210 to 256 g/m² Max. 140 lb. Index
Thick paper 4* 257 to 280 g/m² Max. 100 lb. Cover
Thin paper* 52 to 59 g/m² 14 to 16 lb. Bond
Paper type [05] code Sub
code
Recommended
value
Acceptable
value range
Default

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC © 2018 TOSHIBA TEC CORPORATION All rights reserved
1-6
After adjusting the density, print and check the image quality.
If further image quality adjustments are still necessary, perform the next procedure.
(3) Check the life of the consumables (particularly the drum and fuser unit) and replace them, if necessary.
• When replacing any consumable, use steps (a) to (c).
(a) Enter the PM support mode. Reset the counter corresponding to the replaced consumable to “0”.
For further information regarding the PM support mode, refer to the Service Manual.
(b) Select [05 ADJUSTMENT MODE], select code [2742], and then press the [START] button.
Image quality control will be performed and the image quality control value will be initialized.
(c) Perform automatic calibration in the same manner as in procedure (1).
• After replacing any consumable, remember to reset the counter corresponding to it to “0”.
Otherwise, it may cause a loss in MFP performance, including degradation in the image quality
and a reduction in the life of the consumables.
Caution after the adjustment
Nothing in particular.
Remarks
• Enter the value mentioned in the procedures or one within the recommended value range for the
adjustment. Otherwise, it may cause a loss in MFP performance, including degradation in the image
quality and a reduction in the life of the consumables.
• If printing on another type of paper causes a problem with the image quality after the adjustment,
return the setting values (for codes 05-2934 to 2937) to the default (setting value: 5) and then perform
the adjustment again.
• When replacing any consumable, refer to the relevant information in the Service Manual.

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
© 2018 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC
1-7
1.2 To Adjust the Density on a Solid Colored Image
Explanation
The density of a certain color can be made darker or lighter in accordance with the type of paper or the
content of an original. When the toner amount on solid areas must be adjusted as requested by a user,
an image quality target value or developer bias must be adjusted. The correction amount needed varies
depending on the status of use of the consumables such as the developer material or the drums, or the
status of the installation site. Since a constant value will be applied regardless of the influences of the
above status in the developer bias adjustment, perform image quality adjustment while changing the
target value as much as possible.
 Procedures
The service technician must perform the adjustment in accordance with the procedures below.
(1) Select [05 ADJUSTMENT MODE]. Adjust the density of the copied or printed solid image.
Use steps (a) to (b) to perform the adjustment.
(a) Select [05 ADJUSTMENT MODE] and change the value for code [2662] to correct the image
quality target value.
• When the value becomes larger than the present one, and the solid image becomes darker.
When it becomes smaller, the image becomes lighter. The value must fall within a range of “-
50” and “+50” from the default.
If the density is decreased If the density is increased
The solid colored area becomes lighter. The solid colored area becomes darker.
Color to
adjust [05] Code Subcode
Default
e-STUDIO2010AC/
2510AC
e-STUDIO2515AC/3015AC/
3515AC/4515AC/5015AC
Y (Yellow)
05-2662
0 322 333
M (Magenta) 1 312 337
C (Cyan) 2 327 369
K (Black) 3 333 349

1.General Adjustments – Copying, Printing and e-Filing (Output from Box)
e-STUDIO2010AC/2510AC/2515AC/3015AC/3515AC/4515AC/5015AC © 2018 TOSHIBA TEC CORPORATION All rights reserved
1-8
It is recommended that the changing amount for one time falls within ± 20 bits.
(b) Select [05 ADJUSTMENT MODE], select code [2742] and then press the [START] button.
After performing image quality control, print the image and check its quality on the solid areas.
(2) Select [08 SETTING MODE]. Change the value to adjust the density of a solid area during the
copying/printing operation.
Use steps (a) to (b) to perform the adjustment.
(a) Select [08 SETTING MODE]. Change the values for codes [2513/2514] to adjust the developer
bias output value.
The value to use varies depending on the paper type and color to adjust. Check the code to use
in accordance with the following “Code” list, and refer to the “Code setting values” list to select a
proper value.
Code
• The table below shows you the acceptable paper weight for the paper type.
* e-STUDIO2515AC/3015AC/3515AC/4515AC/5015AC only
Paper type Color to adjust [08] code Subcode
Except
extra long
size paper
Plain / Recycled /
Thick / Thin paper*
Y (yellow)
08-2513
0
M (magenta) 1
C (cyan) 2
K (black) 3
Other paper
Y (yellow)
08-2514
0
M (magenta) 1
C (cyan) 2
K (black) 3
Extra long size paper*
Y (yellow)
08-2514
0
M (magenta) 1
C (cyan) 2
K (black) 3
Paper type Acceptable paper weight
Plain/Recycled paper 60 to 80 g/m² Max. 60 lb. Cover
Thick paper 81 to 105 g/m² Max. 110 lb. Index
Thin paper* 52 to 59 g/m² 14 to 16 lb. Bond