Leibinger JET3 up, Operating Manual

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Page 390 Appendix - Encoder Guidelines Group 12
Release R1.06 JET3up
If an „internal clock“ (internal encoder) is used, there will appear deviations in the print
width if the speed of the product would vary!
Original print adjustment oft he „print width“:
Slower speed as the
original adjustment: faster speed as the
original adjustment:
Therefore we recommend always using an encoder to ensure an accurate and stable
print width even at varying speeds!
Resolution:
The precise the resolution of the encoder (amount of impulses per revolution), the
precise and in finer steps the position of the printout can be adjusted.
Besides print-width regulation of the printer is also depending about the resolution of the
encoder. If the resolution of the encoder signal would be too small there are just
„gradually“ and no finer adjustments possible.
Example:
If an encoder is used with 5000Imp/r and a measurement wheel with a circumference of
200mm, the following resolution will be achieved:
5000 Impulses: 200mm = 25 Impulses/mm
Generally the resolution should have at least 10 pulses/mm to achieve a good precision
and fine adjustment of all print parameters!
Higher resolutions as 50 impulses/mm will not bring any advantages or a higher
accurate precision of the printer!