User manual KONICA MINOLTA 860

[. . . ] QMS ® 860 Print System User's Guide 1800261-001D Trademark Acknowledgements The following are trademarks or registered trademarks of their respective owners. Other product names mentioned in this manual may also be trademarks or registered trademarks of their respective owners. Registered trademarks are registered in the United States Patent and Trademark Office; some trademarks may also be registered in other countries. QMS®, the QMS logo®, PS Executive SeriesTM, CrownTM, the Crown logoTM/QMS. [. . . ] The gamma correction value provided through the printer control panel refers to a constant value applied to the scan. Increasing the gamma value lightens the image and decreasing the value darkens the image. Print Quality 6-5 Chapter 6 Change from Gamma 0 to Gamma 1 Gamma correction 1 provides low contrast. It provides a continuous tone of gray values from all white to all black. Gamma O Uncorrected Gamma 1 Low Contrast Change from Gamma 0 to Gamma 2 Gamma correction 2 provides medium contrast. It is the midpoint between gamma correction 1 and gamma correction 3. Gamma O Uncorrected Gamma 2 Medium Contrast Change from Gamma 0 to Gamma 3 Gamma correction 3 provides a high contrast. It accentuates the near black (charcoal or dark gray) and the near white (very light gray) areas. There is a continuous tone area between the near white and near black areas. Gamma O Uncorrected Gamma 3 High Contrast 6-6 Print Quality Chapter 6 NOTE: These gamma correction charts were not generated by the Administration / Special Pages / Gamma Correction selection. You can test gamma correction using the setgray PostScript operator. The QMS Crown Technical Reference Manual, which is an optional purchase available from your QMS vendor, contains information on setgray. NOTE: You may want to use the settransfer PostScript operator to set gamma correction values not predefined in the printer. (See the QMS Crown Technical Reference Manual, which is an optional purchase available from you QMS vendor, for more information on settransfer. ) Gamma Correction Application You can use gamma correction to correct gray-scale problems for scanned images or to accentuate detail. An increase in the gamma value lightens the image. This change does not affect black or white text, but may affect gray text. Here are some examples: s For a photo with a wide range of gray areas from white to black, you might want to use gamma correction 1. For a photo with very dark or very light areas and few intermediate gray areas, you might want to use gamma correction 3. s The main benefit of gamma correction is that it improves the copy quality of a scanned image. o Print Quality 6-7 Chapter 7 Professional Printing Chapter highlights: s s Introduction to typefaces and fonts Introduction to page design Chapter 7 Introduction Now you are ready to explore the potential of your QMS 860 Print System. This chapter displays the printer's resident typefaces, offers suggestions for using them, and includes page design tips. A bibliography for graphic design, desktop publishing, and PostScript printing can be found at the end of this chapter. About Typefaces and Fonts Many of the terms and phrases used in desktop publishing are derived from the language of professional printers and typesetters. This section explains common words and phrases used when printing typefaces. The more you know about the typeface and printing capabilities of your printer, the more you can improve the appearance of your documents. You need to know the following four terms since they are often confused. Typeface A named design of a set of printed characters, such as Times, that has a specified obliqueness (degree of slant) and stroke weight (thickness of stroke). It does not define a particular size. Typeface Family A typeface family is a group of similar typefaces. For example, the Times typeface family consists of four typefaces: Times Roman, Times Bold, Times Italic, and Times Bold Italic. Font A font is a set of characters of the same typeface (such as Times), style (such as italic), stroke weight (such as bold), and point size (such as 10). Although you hear the term "font" used more generally, as if referring to a typeface, it is really a subset of a typeface. Professional Printing 7-1 Chapter 7 Character Set A character set is a collection of symbols designed for various printing applications. [. . . ] 4-34 QMS 860 User's Guide Index I-11 Pen 3 Pen Color. 4-34 Physical characteristics Dimensions . 9-16 I-12 QMS 860 User's Guide Index Wrinkled pages . 1-5 - 1-6, 8-1 - 8-14 Paper stop, adjusting . [. . . ]