BUS Updated 12/2011
07/2011
3-36
WorkCentre 5335 Family Service Documentation
Moire Due To Interference With Copy Original, Light
Initial Issue
Image Quality
Moire Due To Interference With Copy Original
Cause
When copying, interference with the original may cause moire. Combinations of certain angles
of screen ruling near 150lpi and Reduce/Enlarge ratio may cause moire. Precautions should
be taken during enlargement.
Corrective Action
•
Reduce sharpness.
Secondary defect: Text is blurred.
•
Make copies at a different Reduce/Enlarge ratio.
•
Change the orientation of the original.
Light Background Due To Auto Exposure In Copies Of
Originals With Frames
When Auto Exposure is turned [On] for originals with dark frames along the Lead Registration
Edge, the suppression value is set so large such that areas of medium density appear
extremely light.
Figure 1 Light Background (in circled area for example) Due To Auto Exposure In Cop-
ies Of Originals With Frames Defect Sample
Cause
Auto Exposure performs background detection of images at a distance of up to 10mm from the
Lead Registration Edge. As there were dark frames along the Lead Registration Edge, Auto
Exposure could not detect the original background density. Therefore, Auto Exposure was per-
formed based on the density of the frames.