Relative+Colorimetric+Bug

=Why are prints made through the plugin with Relative Colorimetric intent darker than prints made through the driver?=


 * Problem:** When I use softprooofing in Photoshop using relative colometric intent with black point compensation on pictures look one way, but if you use relative colorimetric in print plugin with softproof checkbox on the print looks exactly the same as PS softproofing without black point compensation on.


 * Resolution:** None. This is apparently Canon's design, not a bug. Relative Corimetric intent does not use (or allow) Black Point Compensation. This renders the Relative Colorimetric intent useless when printing through the plugin.


 * Workarounds:**


 * Convert to the printer profile in Photoshop with Relative Colorimetric intent and Black Point Compensation on. Then, print through the plugin with Output Profile set to None. This method confirmed by John Hollenberg.
 * Print through the 8 bit operating system level driver instead using Relative Colorimetric intent. Black Point compensation will be applied in Photoshop.
 * If using the iPF6300 or iPF8300, the plugin now supports AdobeCMM (Adobe Color Management Module) which DOES have Black Point Compensation