Oki IP-5620 Quick Reference Manual page 39

- Print Sample [Nozzle print]
When using neon ink, Ny and Np are displayed in place of Lc and Lm respectively.
No line is missing and
the printout is correct
OK
Mark for the last nozzle (nozzle 254)
Check that nozzle print is complete
up to the right of this mark.
No line is bent and the
printout is correct
OK
If pint defects are found on the nozzle print, perform (5) Print head cleaning [NORMAL] again. If print defects
still occur after several print head cleanings, perform settings for NOZZLE MAP
Note
- Do not expose the print heads for an unnecessarily long time when taking them out of the capping unit.
Finish the work quickly and cap the print heads.
Nozzle map (smart nozzle mapping) is a function used to prevent print quality degradation when an identified
nozzle is blocked. Generally, when only one nozzle is blocked, the print quality is not affected. However, when 2, 3
or more nozzles are blocked, the print quality is affected and the expected results may not be obtained. The smart
nozzle mapping function compensates the print defects due to a blocked nozzle by using another nozzle. Contact
a service representative is you are not able to compensate all print defects using this function.
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Missing lines are found
NG
Example when lines for nozzles 24
and 133 are missing in the printout.
Bent lines are found
NG
If the spaces between
the lines are even, no line
is bent.
If there are uneven
spaces between lines,
some lines may be bent.
The line printed by the nozzle 159
(indicated with the arrow) is bent to
the nozzle 161.
=> The nozzle 159 prints bent lines.