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Advanced Imaging 7-7
For example, if a scanned image is too dark, you can use the printer’s
front panel or use the software printer setup to select a new gamma
setting to lighten and enhance the details. Gamma correction brings
out details that can be lost when printing at higher line screens or
when dark photos are scanned.
Your Accel-a-Writer 812 offers seven gamma settings, 0 through 6
with 0 as the default. Settings 0 through 5 progressively lighten the
midrange values. If you need a negative (reverse) image, which is
required by some printing processes, you can create one using
gamma 6 rather than using a software application. Figures 7.1 and
7.2 illustrate the effects of gamma correction settings. Chapter 5,
“Configuration,” contains details on where to find the gamma
options in the menu structure and how to make the selections.
1
1
0
Output Levels
Gamma 0
Black
White
Input Levels
Black
White
Fig. 7.1 Gamma Correction 0
Summary of Contents for Accel a Writer 812
Page 1: ..._____________________________________________________ i Innovations In Output PM AW812D 5 7 96...
Page 7: ..._____________________________________________________ vii...
Page 15: ...xivbb ____________________________________________________...
Page 17: ...1 2 Introductionbb ________________________________________ Notes...
Page 26: ..._________________________________________ Introduction 1 11...
Page 28: ...2 2 Installationbb_________________________________________ Notes...
Page 68: ...3 2 Macintosh Setupbb ____________________________________ Notes...
Page 82: ...4 2 PC Setupbb __________________________________________ Notes...
Page 98: ...4 18 PC Setupbb __________________________________________...
Page 100: ...5 2 Configurationbb ______________________________________ Notes...
Page 125: ..._______________________________________ Configuration 5 27...
Page 127: ...6 2 Routine Operationsbb __________________________________ Notes...
Page 163: ...7 2 Advanced Imagingbb ___________________________________ Notes...
Page 185: ...7 24 Advanced Imagingbb ___________________________________...
Page 187: ...8 2 Maintenancebb _______________________________________ Notes...
Page 197: ...8 12 Maintenancebb _______________________________________...
Page 199: ...9 2 Optionsbb ___________________________________________ Notes...
Page 221: ...10 2 Troubleshootingbb____________________________________ Notes...
Page 249: ...10 30 Troubleshootingbb____________________________________...
Page 251: ...A 2 Supported HP PCL 5 and HP GL 7475A Commandsbb _______ Notes...
Page 263: ...A 14 Supported HP PCL 5 and HP GL 7475A Commandsbb _______...
Page 264: ...____________________________________ Application Notes B 1 Appendix B Application Notes...
Page 265: ...B 2 Application Notesbb ___________________________________ Notes...
Page 277: ...B 14 Application Notesbb ___________________________________...
Page 278: ..._________________________________ Warranty Information C 1 Appendix C Warranty Information...
Page 279: ...C 2 Warranty Infromationbb ________________________________ Notes...
Page 282: ...___________________________________________ Glossary G 1 Glossary...
Page 283: ...G 2 Glossarybb __________________________________________ Notes...
Page 293: ...G 12 Glossarybb __________________________________________...
Page 312: ..._______________________________________________ Index I 19...