Toshiba e-STUDIO281c, 451C, 351C manual To Adjust the Copy Image Quality in Black Mode

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2. Copier-specific Adjustments

2.1.1 To Adjust the Copy Image Quality in 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 effectiveness of the adjustment, restore the settings made in the previously used procedure to the original. Then perform the next procedure.

*Procedures (1), (2) and (5) are used by the service technician, and by the user.

*Procedures (3), (4), (6) and (7) are used by the service technician only.

(1) Press the [BASIC] button on the Control Panel. Press the [ ] button to increase the copy density.

After increasing the copy density, copy and check the copy image quality.

With the copy density set to the maximum, if further image quality adjustments are still necessary, use the next procedure.

(2) Press the [IMAGE] button on the Control Panel. Press the [SHARPNESS] button. Press the [SHARP] button to increase the sharpness intensity.

After increasing the sharpness intensity, copy and check the copy image quality.

With the sharpness intensity set to the maximum, if further image quality adjustments are still necessary, the service technician must use the next procedure.

(3) Enter adjustment mode [05]. Increase the values for codes [604 to 606] to increase the copy density of text (or increase the sharpness intensity).

•The code to use varies, according to original mode (Text/Photo, Photo or Text). Adjust the value for the [05] code corresponding to original mode for which you would like to improve the image quality and set a value larger than "16" for it.

Original mode

[05] code

Value recommended

Acceptable value range

Default

Text/Photo

05-604

Set a value larger than 16.

0 to 31

0

Photo

05-605

Text

05-606

 

 

 

*Setting "1" provides the softest image, while setting "31" provides the sharpest image. The default value ("0") provides an image as sharp as the one provided by setting "16."

Changing the values for these codes will change the sharpness intensity, when the "Sharpness" indicator in the "IMAGE" menu is set to the center. Remember that 1 step of the indicator will increase or decrease the sharpness intensity by 3. If the sharpness intensity of the center value is changed, each step of the indicator will be changed accordingly. (For instance, if the center value is increased by 5 (sharper), the value of each step of the indicator will also be increased by 5 (sharper).)

After increasing the sharpness intensity, copy and check the copy image quality.

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

e-STUDIO281c/351c/451c 2.1

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Contents File No. SME05001100 R05072188300-TTEC Ver002005-11 Toshiba TEC Corporation Revision Record Purpose of the Imaging Manual Precautions in ServicingIcons Table of Contents Scanning-specific Adjustments Printer-specific AdjustmentsFiling-specific Adjustments ‰ Explanation Before the adjustment After the adjustment‰ Procedures To Obtain a Darker ImageTo adjust the print image quality To adjust the copy image qualityPaper type Acceptable paper weight Paper type Code Subcode Value Acceptable Default‰ Remarks ‰ Cautions after the completion of the adjustmentTo Achieve the Image Quality Most Suitable for Paper Used Before the adjustment‰ Explanation To Adjust the Blurred or Grained Image ‰ Cautions after the completion of the adjustment Plain paper Thick 05-293 60 to Plain paper Thick 05-1822 75 to Code Subcode Value recommended Acceptable Default ‰ Cautions after the completion of the adjustment To optimally program image quality control To Minimize Variations in the Image Quality after Power-on‰ Explanation After the adjustment Invalid Before the adjustment After the adjustment Value for Difference in relative humidity Value for Sheets default‰ Cautions after the completion of the adjustment STUDIO3511/4511e-STUDIO281c/351c/451c To Correct Out-of-Register ColorsSize ‰ ProcedureProcedure Code Test print pattern Printing Paper ReferredColor Code Subcode Value recommended Acceptable value range Correction at the trailing edge Correction at the leading edge05-69 Grid pattern for identifying out-of-register colors 05-64 Test print pattern 64 block pattern Correction at the leading/trailing edge ‰ Cautions after the completion of the adjustment To Sharply Copy Light Text or Thin Lines Copier-specific AdjustmentsOriginal mode Code Value recommended To Adjust the Copy Image Quality in Black ModeSubcode Area for the density to be adjusted Value Background peak Text peak To Adjust the Copy Image Quality in Full Color Mode ‰ Cautions after the completion of the adjustment To Adjust the Copy Image Quality in Auto Color Mode ‰ Cautions after the completion of the adjustment To Closely Match with the Color Balance of the Original ‰ Procedures 05-1779 Text 05-1780 Printed image 05-1781 Yellow ‰ Cautions after the completion of the adjustment To Improve the Reproducibility of Gray Subcode Area for the density to be adjusted To Copy in Vivid Colors Subcode Area for the density to be adjusted To improve the highlight reproducibility Photo Subcode Area for the density to be adjusted ‰ Cautions after the completion of the adjustment To Eliminate the Background Color Original Code Value recommended Acceptable Default Mode Fixed Varied Original mode Code Value recommended Acceptable Default 05-1691 Map 05-1692 ‰ Cautions after the completion of the adjustment After the adjustment To Adjust the Copy Image Quality in Black Mode Value Background peak Text peak Original mode Code Value recommended Acceptable Default To Adjust the Copy Image Quality in Full Color Mode ‰ Cautions after the completion of the adjustment To Eliminate Moiré Value for Default original mode at power-on To change default original mode on the Control PanelTo change default original mode in setting mode 05-604 Set a value smaller than Text 05-605 ‰ Cautions after the completion of the adjustment To Copy Sharply To enhance sharpness 05-604 Set a value larger than Text 05-605 To Make Photo Edges Look Softer Copier-specific Adjustments Black Value Advantage of image quality Color mode Code Value recommended Acceptable DefaultTo Make Solid Filled Bold Text Logo Highly Colored To Adjust the Copy Image Quality of a Black Logo Text 05-1795 Set a value larger than 128 Black To Adjust the Copy Image Quality of a Colored Logo Subcode Area for the density to be adjusted To Sharply Contrast the Hues of Highlighters on the Copy Marker Cold Code Mode to assign Acceptable DefaultSubcode Area for the density to be adjusted To Obtain a Good Color Balance on Thick Paper Paper mode Code Value recommendedAcceptable value range Default Nothing in particular To Obtain Smooth Gray-scale Photo Images ‰ Procedure To Change the Threshold in Auto Color Mode Threshold to be adjusted Code Acceptable To Clearly Copy Text To adjust the density of text Text/Photo 05-648 Approx To adjust the image quality in red and black mode To Adjust the Twin Color Copy Image QualityTo Adjust the Tint of Red in Red and Black Mode To Adjust the Reproducibility of Black in Red and Black ModeTo Adjust the Image Quality Scanned from the Radf Value Advantage of image quality Reproductivity Background To Maintain a Steady Color Balance Printer-specific AdjustmentsPrinter-specific Adjustments To Obtain the Desired Color Balance For Windows Menu For MacintoshText and graphics in this option PS3 Recommended Halftone CodeValue Acceptable Image Quality Type Halftone option applied Windows Macintosh To Closely Match with the Color Balance on the Monitor As viewed on the monitor Before the adjustment‰ Procedure For Macintosh To Maintain a Uniform Gray Hue ‰ Procedure Quality Ö Pure Black & Gray For Windows Quality Ö Color Resolution Type ‰ Cautions after the completion of the adjustment To Easily Adjust the Overall Brightness ‰ Procedure To Easily Adjust the Overall Saturation ‰ Cautions after the completion of the adjustment To Clearly Print Light-colored Thin Lines or Text PCL5c PS3 For Macintosh To adjust the image quality in full-color printing PCL5c 600 x Detail 05-1030 1200 x 05-1038 Yellow Value Acceptable Default To adjust the image quality in black-and-white printingTo Clearly Print Thin Lines/Double Lines PCL5c PCL6 PS3 Printing Modes Ö Distinguish Thin Lines To Decrease the Image Density and Save Toner To Print in Toner Save ModeFor Windows Quality Ö Toner Save To Adjust the Image Density in Toner Save Mode Code Value recommended Acceptable Default Value range To Print Illegible Gray or Colored Text in Black ‰ Remarks To Ignore Blank Pages for Printing For Windows Printing Modes Ö Do not Print Blank Pages ‰ Cautions after the completion of the adjustment To Sharply Print Black Text For Windows For Macintosh PCL5c PCL6 PS3 PS3 Acceptable Default Adjusted ‰ Remarks To check the definition of black text Printer-specific Adjustments To Clearly Store the B/W Image in Auto Color Mode Filing-specific AdjustmentsFiling-specific Adjustments Ex. A4, 200 dpi, LOW = Approx KB To Store the Original, while Reducing the File SizeTo utilize the template To change the default Jpeg compression rateTo Store the Color Photo Image, while Minimizing Moiré To change default original mode on the Control Panel To change the density in Copy to Box ‰ Remarks To Match with the Color Balance on the Original To adjust the color balance in Print to BoxPrint to Box PCL5c To Scan and Print, while Minimizing Moiré 05-1088 To Print Images Stored through Copy to Box or Print to Box To Finely Print the Image Stored in the e-Filing boxPrint to Box Scan to Box RGB data ‰ Explanation To Print Images Stored through Scan to Box Filing-specific4.Adjustments To Clearly Scan Text To reduce noise around text Scanning-specific AdjustmentsResolution File size ratio To eliminate the background density To Scan the Original, while Eliminating the Background Color05-1072 Gray scale 05-848 To improve gradation and reduce graininess To Clearly Scan and Print the Original in Black and White‰ Cautions after the completion of the adjustment To Scan the Original, while Reducing the File Size Scanning-specific Adjustments Procedures used Possible image degradation Original mode File size ratio‰ Remarks Image looks too soft and blurred 05-840 Text 05-841 To Scan the Original, while Enhancing Black ‰ Procedure To Scan the Original with the Desired Gradation Value recommended Acceptable Default Value range Color mode Original mode Code
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