Application Hints And Tips - Oce Arizona T220 User Manual

Application Hints and Tips

3.6
The following recommendations are based on our experience with the T220 printer.
They are offered as staring points or suggestions for dealing with various situations.
Situation
Maximum
Recommended Heat
Duty Cycle
Maximum Ink
Restrictions
Recommended
Dmax Values
Increasing Black
Density
Head Swabbing
Frequency
Printing on uneven
surfaces
Overprinting
Techniques
10/16/03
Recommendation
The lower the better, currently anything above 70% for 8 pass
impacts image quality reliability.
You can go right up to the maximum of 100% with 100%
overstrike, if required. Use only enough ink to achieve sufficient
Dmax and good-looking reds.
Recommended Dmax values are approximately: C,M 1.4, Y .8, K
1.8. Using too much ink tends to lead to drying problems and
increasing the heat is not the best option since it can cause
clogged nozzles.
Use ICC profiles. Or use color replacement to change 100%K to
a rich black.
40% C, 30% M, 30% Y, 100 %K have given good results on a
variety of media. The maximum recommended values are 60%
C, 40% M, 40% Y, 100% K.
Monitor the diagnostic strip and swab heads if a recovery purge
of the problem color does not resolve the problem. The required
swab frequency will be dependent on many factors such as:
printer duty cycle used, print volume, and media/air cleanliness.
In the factory will typically swab heads about once a week.
Use a thickness equal to the thickest value of the media, and
print unidirectional.
Overprinting may be required on media that do not hold ink well.
When doing multiple coats of ink on the same print, it is
recommended that the first coat have a lower ink restriction
value than the second coat (e.g., 40%-60% ink first coat, 140%-
180% second coat). Hitting color and proper linearization when
using overprinting is difficult.
Application Hints and Tips |
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