Epson Stylus pro 7900 Repair Manual page 424

Pro 7900 and 9900 Field Repair Guide
Deflected Nozzle:
Dithering:
Dot Gain:
Drop of Ink:
Dye Ink:
Electronic Alignments:
Error Diffusion:
Flight Time:
Gamut:
Ghosting:
Gradient:
Grainy:
Glossary
A nozzle is firing, but the ink drop is not landing where it is intended too. Irregular
spacing on the nozzle check pattern indicates this condition.
The dot pattern placed on the printed surface to create and image. Also known as
screening.
A drop of ink tends to travel out from its point of impact, as the media absorbs it. The
purpose of the coating (on the media) is to minimize dot gain.
Ink that appears to have dripped from the print head, or any other component of the
ink supply.
Ink that colors the printed surface with dye. It is less durable than pigment ink, but
has a wider color range (gamut).
Printer adjustments, which are performed using software routines that, allow the
printer to compensate for physical variations in its mechanism.
The type of dithering (screening) proprietary to Epson, that employs a random dot
pattern to ensure that the human eye can discern no pattern.
The time it takes a drop of ink to travel from the print head to the printable surface.
The range of colors that a printer can produce.
A term that refers to components of an image that are intended to be on top of each
other (or adjacent), but are offset.
A smooth transition between one color shade, and the next. A continuous tone image
requires a smooth gradient for all its tonal shifts.
A breakdown of the "illusion of continuous tone". A printed image that does not have
smooth tonal transition, and sharp detail.
Printer Component, Software Item, LCD Display, Printer Button
10/6/10
Page 424.