2. Set gamma correction (ESC Z)

This command adjusts the scanned data according to the type of output device you plan to use.

The gamma correction setting is independent of any other scanner settings.

On B4 and higher-level scanners, you can use the ESC z command to define gamma correction tables to match the unique needs of specific types of documents and output devices.

Gamma correction processes data for various types of output devices as explained below:

CRT Display A

This setting takes the scanned data and converts it directly to image data. This is suitable for displays that are incapable of displaying different tones of gray or color; for example, displays that can display only 8 or 16 colors. This is also recommended for line or character data that is scanned as bi-level data (1 bit/pixel/color).

2-10Command Usage