IBM 1220 - Manual (Page 170)

168
Image Smoothing
Purpose:
To enhance the contrast and sharpness of low resolution bitmapped images (such as images
downloaded from the World Wide Web) and smooth their color transitions.
Values:
Note: Image Smoothing has no effect on images that are 300 dpi or higher resolution.
Print PS Error
Purpose:
To print a page defining the PostScript emulation error when an error occurs.
Values:
Off* Uses default resolution when printing all images.
On Enhances low resolution images, such as graphics with a resolution of 72 dpi.
Off* Discards the print job without printing an error message.
On Prints an error message before it discards the job.