Toshiba 451C, 351C, e-STUDIO281c manual Resolution File size ratio, Remarks

Page 165

5. Scanning-specific Adjustments

(2) When scanning the original, press the [EDIT] button on the Control Panel. In the "RESOLUTION" option, select a higher resolution.

*In the "RESOLUTION" option, "200 (dpi)" is selected by default. If noise occurs in a resolution of 200 dpi, select a higher resolution (300 dpi, 400 dpi or 600 dpi).

After changing the resolution, scan the original and check the scanned-in image quality.

If further adjustments are required, use procedure (1).

Cautions after the completion of the adjustment

•The adjustment of the JPEG compression rate or resolution may possibly increase the size of the file to be stored. Therefore, carefully perform the adjustment, while checking the scanned-in image quality. The table below shows you the correlation between a resolution and file size. (The ratio of the file size may vary, depending on the type of original. Therefore, use the table below just for your reference.)

*The file size in a resolution of 200 dpi is 1.

Resolution	File size ratio
200 dpi	1
300 dpi	Approx. ⋅ 2
400 dpi	Approx. ⋅ 4
600 dpi	Approx. ⋅ 10

•If the resolution selected in procedure (2) is too high, moiré may possibly occur in the scanned-in image. Therefore, carefully adjust the resolution, while checking the scanned-in image.

Remarks

Use the following steps to change the default "JPEG COMPRESS" and "RESOLUTION" options:

(a)Press the [USER FUNCTIONS] button on the Control Panel to enter the "User Functions" menu.

(b)Press the [USER] button.

(c)Press the [SCAN] button.

(d)In the "JPEG COMPRESS" or "RESOLUTION" option, press the desired button to change the default setting.

*The default resolution can be selected on a color mode basis: Full color mode (including Auto color mode), Gray scale mode and Black mode. But, remember that some of the resolution options cannot be selected as the default. (The resolution options available vary, depending on whether the optional GC-1181 and GC-

1230 expansion memories are installed or not.)
• The following resolution options are available as the default:
• Full color mode (including Auto color mode):	300 / 200	/ 150	/ 100	(dpi)
• Gray scale mode:	400 / 300 / 200		/ 150 / 100 (dpi)
• Black mode:	600 / 400	/ 300	/ 200	/ 150 (dpi)

e-STUDIO281c/351c/451c 5.1

Image 165

Contents File No. SME05001100 R05072188300-TTEC Ver002005-11 Toshiba TEC Corporation Revision Record Purpose of the Imaging Manual Precautions in ServicingIcons Table of Contents Printer-specific Adjustments Filing-specific AdjustmentsScanning-specific Adjustments ‰ Procedures Before the adjustment After the adjustmentTo Obtain a Darker Image ‰ ExplanationTo 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 Minimize Variations in the Image Quality after Power-on ‰ Explanation After the adjustmentTo optimally program image quality control 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 ColorsProcedure Code Test print pattern Printing Paper ‰ ProcedureReferred SizeColor 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 To change default original mode on the Control Panel To change default original mode in setting modeValue for Default original mode at power-on 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 Paper mode Code Value recommended Acceptable value range DefaultTo Obtain a Good Color Balance on Thick Paper 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 Halftone Code Value AcceptableRecommended 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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