HP PCL 5 Manuel d'utilisateur Page 221

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EN Using Color Modes (Color LaserJet, 5, 5M, DeskJet) B-19
Note Although the data ranges may extend beyond the default data ranges
specified in the short form of the CID command, the printer will clip
the data to the short form data ranges.
Maximum and minimum values are specified for each primary color.
Floating point data must be linearly scaled (y = mx b) to the range
0 – 255.
Since a* and b* have no theoretical limits, L*a*b* data may be sent
outside CID constraints. Then data is clipped to preserve hue and
compressed to the device's printable gamut.
Note CIE L*a*b* color space support is at HP Color LaserJet level for
HP Color LaserJet 5 and 5M printers.
The white point is based on the standard D6500 illuminant.
Byte 15 (msb) 8 7 (lsb) 0 Byte
0 Color space Pixel encoding mode 1
2 Bits per index Bits per primary #1 3
4 Bits per primary #2 Bits per primary #3 5
6 Minimum L* value (most significant word)* 7
8 Minimum L* value (least significant word)* 9
10 Maximum L* value (msw) 11
12 Maximum L* value (lsw) 13
14 Minimum a* value (msw) 15
16 Minimum a* value (lsw) 17
18 Maximum a* value (msw) 19
20 Maximum a* value (lsw) 21
22 Minimum b* value (msw) 23
24 Minimum b* value (lsw) 25
26 Maximum b* value (msw) 27
28 Maximum b* value (lsw) 29
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