HP Scitex FB550 User Guide - Page 123

Color matching, settings such as Grey Color Removal GCR

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Color matching The accuracy of color reproduction by the printer is the result of the interaction of numerous factors, listed below. Correction of errors in color reproduction may involve adjustments in more than one of these factors. ● Installation and initial calibrations (performed by an authorized service technician) ◦ Head height ◦ Printheads Y calibration ◦ BiDi calibration ◦ Printhead X calibration ● Ongoing maintenance (performed by the operator) - Clogged or misfiring jets caused by lack of regular cleaning ● Ink - Settling of pigments, ink that is past its Warranty Ends date, bad batch ● Color sets and print modes - Printing with different color sets (six or four colors plus white), and different print modes ● RIP issues - Linearization, color profiling, different methods for using light cyan and light magenta, settings such as Grey Color Removal (GCR) ● Profile matching - Match the color profile used by the RIP to create the RIP file with the print mode (see Available print modes on page 26) used to print the image. 116 Appendix C Image quality tips ENWW

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Color matching
The accuracy of color reproduction by the printer is the result of the interaction of numerous factors, listed
below. Correction of errors in color reproduction may involve adjustments in more than one of these factors.
●
Installation and initial calibrations (performed by an authorized service technician)
◦
Head height
◦
Printheads Y calibration
◦
BiDi calibration
◦
Printhead X calibration
●
Ongoing maintenance (performed by the operator)
—
Clogged or misfiring jets caused by lack of regular
cleaning
●
Ink
—
Settling of pigments, ink that is past its Warranty Ends date, bad batch
●
Color sets and print modes
—
Printing with different color sets (six or four colors plus white), and
different print modes
●
RIP issues
—
Linearization, color profiling, different methods for using light cyan and light magenta,
settings such as Grey Color Removal (GCR)
●
Profile matching
—
Match the color profile used by the RIP to create the RIP file with the print mode
(see
Available print modes
on page
26
) used to print the image.
116
Appendix C
Image quality tips
ENWW