Canon PS-7000, Service Manual

Page: 53 / 67

Chapter 5 Operation Principles
5-2
2. Color Control
2.1. Overview
As color conversion tables, the PS-7000 has been provided with the dedicated CRD (Color
Rendering Dictionary) and ICC (International Color Consortium) profile. In addition,
the PLEX Color Filter contained in the accessory utilities will offer easy color matching
without changing the original data.
1) CRD(Color Rendering Dictionary)
CRD is a table that is used to convert RGB (Red, Green, Blue) output from application
software, such as Adobe Photoshop, into CMYK (Cyan, Magenta, Yellow, Black).
According to the media type, four different CRDs are included in the PS-7000 firmware as listed
below.
No. Type Remarks
1. CRD for heavy coated paper
2. CRD for glossy paper
3. CRD for glossy film
4. CRD for semi-glossy paper
Installed in the PS-7000 ROM.
2) ICC (International Color Consortium) profile
ICC profile is a color conversion profile that is used for ColorSync(Macintosh) and
Kodak CMS (Windows). Following six types of ICCs are prepared according to the
media type, and they are provided by the CD-ROM "Canon Hardware RIP PS-7000
CD" packed with the PS-7000.
No. Type ICC Profile Name Remarks
1. ICC for heavy coated paper BJ-W7000-Heavy Coated
Paper
2. ICC for glossy paper BJ-W7000-Glossy Paper
3. ICC for glossy paper 2 BJ-W7000-Glossy Paper2
4. ICC for glossy film BJ-W7000-Glossy film
5. ICC for back print film BJ-W7000-BPF
6. ICC for semi-glossy paper BJ-W7000-Semi Glossy
Contained in the CD-ROM
packed with the PS-7000.
3) PLEX Color Filter
PLEX Color Filter will adjust CMYK color density on each printout, without
changing the original data. Unlike complex and flexible color conversion by CRD
and ICC profile, simple color adjustment on each printout (or image) is what the
PLEX Color Filter offers.