Table 3.37

Contrast

 

 

 

 

 

Value

 

Contrast

 

 

 

 

00h

 

Default (same to 80h)

01h

 

Soften

 

 

 

 

80h

 

Normal

 

 

 

 

FFh

 

Harden

 

 

 

 

Image Composition:

00h(Black and white), 01h(halftoned)

The image composition field specifies the type of scan operation requested. The image composition is defined as shown in Table 3.38.

Table 3.38 Image Composition Codes

Code

Description

 

 

00h

Bi-level black and white

 

 

01h

Dithered/halftone black & white

 

 

02h to FFh

Reserved

Bits Per Pixel:

01h(1bit per pixel)

The bits per pixel field specifies the number of bits used to represent the intensity of a single color.

Halftone:

Table 3.39, 3.40

The halftone field specifies the level of halftone at which the scan data is converted to binary data. The values in this field are vendor specific. This halftone field is used in conjunction with the image composition field. Fujitsu defines this field two subfields to fitst byte as Halftone Type field and second byte as Halftone Pattern.

Halftone type:

00h(default), 01h(dither), 02h(error diffusion)

Halftone Type field specifies method of halftoning shown in Table

3.39.A value of zero indicates default halftoning method of the device.

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M3099GX/GH OEM Manual