Canon imageCLASS LBP674Cdw Wireless Color Laser Printer - Manual (Page 188)

Set the printing method when reproducing halftones (the intermediate range between the lighter and darker areas of
an image), according to the image content.
To Print Images with Fine Gradations, Such as Digital Camera Photos
Set to [Gradation]. Reproduces the gradation with a smooth finish.
To Print Images with Fine Lines and Small Text, Such as CAD Images
Set to [Error Diffusion]. Prints fine lines and small text with high resolution.
* When you set to [Error Diffusion], the fixing of the toner and stability of the texture may be reduced.
[Matching Method]
Select the correction method of the color tone for printing.
When you select [Vivid Photo], the color tone is corrected to deeper and more vivid colors than with [General].
Printing
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