Xerox 255 DC, Reference Manual

Page: 301 / 322

Xerox Document Centre Reference Guide Page 15 - 13
15. Pro
b
lem
Solvi
n
g
Copy
Quality
(cont’d)
Moiré - a wavy pattern
defect created by the
interaction of the halftone
frequency on the original
and the halftone frequency
used to produce the copy
l
Use a reduced Sharpness setting.
l
If Auto is selected, use Special or if Special
is selected, use Auto.
l
Use Halftone Photo original type with
Special or Auto screen.
Grainy or “noisy” pictures
l
Use Special Screen.
l
Select Photo and select less sharpness.
Fuzzy text or lines
l
Select Text, Halftone Photo , or Normal type
of original.
l
Increase Sharpness and/or Contrast.
Low density images such
as pencil marks are not
copied
l
If Background Suppression is On, Darken
the copy.
l
If Background Suppression is Off, turn on
Background Suppression.
Low density images such
as paste-up marks are
copied
l
If Background Suppression is On, Lighten
the copy.
l
If Background Suppression is Off, turn on
Background Suppression.
Images on the back side of
the original print out on the
front
l
If Background Suppression is On, lighten
the copy.
l
If Background Suppression is Off, turn on
Background Suppression.
l
If copying from the Document Glass, keep
the Document Glass Cover raised.
Lines appear on the copies
when the Document
Feeder is used
l
Thoroughly clean the glass under the
Document Feeder. Refer to the
Maintenance section for additional
information about cleaning the Document
Glass.
Skewed images or sheets
in the output tray
l
Check area 2 jam clearance handle and
ensure that it is securely latched.
Problem Symptom Recommendation