HP Color LaserJet Enterprise CM4540 MFP series - Manual (Page 191)

Use the HP EasyColor option
If you are using the HP PCL 6 printer driver for Windows, the HP EasyColor technology automatically
improves mixed-content documents that are printed from Microsoft Office programs. This technology
scans documents and automatically adjusts photographic images in .JPEG or .PNG format.
HP EasyColor technology enhances the entire image at one time, rather than dividing it into several
pieces, which results in improved color consistency, sharper details, and faster printing.
If you are using the HP Postscript printer driver for Mac, HP EasyColor technology scans all
documents and automatically adjusts all photographic images with the same improved photographic
results.
In the following example, the images on the left were created without using the HP EasyColor option.
The images on the right show the enhancements that result from using the HP EasyColor option.
The HP EasyColor option is enabled by default in both the HP PCL 6 printer driver and the HP Mac
Postscript printer driver, so you do not need to make manual color adjustments. To disable the option so
you can manually adjust the color settings, open the Color tab in the Windows driver or the Color/
Quality Options tab in the Mac driver, and then click the HP EasyColor check box to clear it.
ENWW Adjust color 171