10/10/03

Bits/index

• Specifies the palette size at 2n. n indicates bits/index. (n=4 24=16 palettes)

When the encoding mode is 0 or 1, the palette size selected by the bits/index value specifies the range of the index No., which can be used for raster data.

The values specified by the encoding mode are listed below;

Encoding Mode

Bits/Index

0

0,1,2,3,4,5,6,7,8

1

1,2,4,8

2

1

3

8

Bits/value (#1, #2, #3)

Each value indicates a color as follows;

#1: red

#2: green

#3: blue

When the encoding mode is 0 or 1, it ignores this setting. The black/white reference, described later, is set.

When the encoding mode is 2, it shows the number of planes that are required to send each color.

When the encoding mode is 3, it shows the number of bits that are required to send each color.

It sets the black reference to 0. (Valid when the Encoding mode is 0 or 1.)

It sets the white reference to 2n-1. (Valid when the Encoding mode is 0 or 1.)

2)Long Format

 

MSB

 

LSB

0 - 1

 

Format (0)

Encoding mode

2 - 3

 

Bits / index

Bits / value #1

4 - 5

 

Bits / value #2

Bits / value #3

6 - 7

 

White reference for value #1

8 - 9

 

White reference for value #2

10 - 11

 

White reference for value #3

12 - 13

 

Black reference for value #1

14 - 15

 

Black reference for value #2

16 - 17

 

Black reference for value #3

The long format allows you make the setting of the white/black reference in addition to the ones available in the short format.

White reference for value #1, #2, #3

This mode specifies the white value (the lowest level of density).

Each value indicates a color as follows;

#1: red

#2: green

#3: blue Range: -32767 ~ 32767

When the encoding mode is 2 or 3, this setting is valid.

CHAPTER 3 "PCL5C" - 8

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Homelite 2060, HL-P2500, HL-1660E, HL-2400CE manual Bits/value #1, #2, #3, Long Format, White reference for value #1, #2, #3