Oce VarioPrint 5000 Operating Manual - 8.4 Print Image Problems
8.4 Print image problems
A29246-X17-X-4-7680 / do805.fm
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8.4 Print image problems
8.4.1 Dropouts and spots - defective photoconductor drum
If there are spots and dropouts on the print image, use the following overview to check
whether the permitted number of spots and dropouts is exceeded before replacing the
photoconductor drum.
• Spots
Spots are printed areas found outside the character contours. They are as dark as normal
print characters.
• Dropouts
Dropouts are areas on the print image that are inside the minimum permitted character
outlines and are as light as unprinted areas.
The photoconductor drum may be the cause of such problems, especially if the print faults
(spots and dropouts) are regularly spaced, i.e. at intervals of around 380 mm (possibly also
visible on A3 prints).
It is normal that a few print irregularities (spots and dropouts) occur with a new
photoconductor drum; per A4 sheet, the following numbers are permissible.
8.4.2 Fusing quality
Check the following if the fusing quality is poor:
• Does the paper fulfill the paper specification regulations?
• Was the paper correctly stored?
Only when these possibilities have been ruled out should you call the service engineer.
Size
Permitted number
Spots
to 0.25 mm:
average 3
from 0.25 to 1.5 mm
1
Dropouts to 0.5 mm
1