Canon imageCLASS MF6595 imageCLASS MF6500 Series Scanner Driver Guide - Page 55
Determining Resolution, Images for Display on a Monitor, Images for Printing, Printing Scale
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Introduction 1 Scanning a Document 2 Troubleshooting 3 Appendix 4 ■ Determining Resolution The data in the image you scan is a collection of dots carrying information about brightness and color. The density of these dots is called "resolution" and "dpi" (dots per inch) refers to the number of dots in one inch. You can specify a resolution in [Image Quality] in the MF Toolbox settings dialog box, or in [Output Resolution] in the ScanGear MF. ● Images for Display on a Monitor Images for display on a monitor in general should be scanned at a resolution of 75 dpi. ● Images for Printing Images to be printed should be scanned at a resolution which corresponds to the resolution of the printer. NOTE With a color printer, the colors are expressed as a certain percentage of ink pigment so scanning your document at half the resolution of the printer should be fine. ● Printing Scale For example, if you want to print a document which is twice the original size both vertically and horizontally, the resolution of your document will be reduced by half. In such a case, scan the original document at double the resolution so that you can print the document with sufficient quality, even if you double the size of the document. Conversely, if you want to print a document at a reduced size, it should be sufficient to scan at half the resolution. Table of Contents Index Back Previous Next TOP ● Resolution and Data Size If you double the resolution, the image data will be four times greater. If the data is too large, processing speed will slow down significantly, and you may experience malfunctions such as lack of memory. Make sure the resolution corresponds to the planned use of the image and set it at the lowest level possible. 2-41