HP Latex 3000 Printer User Manual
Page 264
NOTE:
When printing with rolls that have not been precisely wound with the same tension along their
width during manufacturing, you may notice that, while printing, one of the sides of the substrate
between the input spindle and the main roller loses all tension. This may cause wrinkles on the platen
or telescoping on the output spindle.
TIP:
If you notice that you are suffering wrinkles on the platen and that the substrate between the
input spindle and the main roller has lost all tension at one side, try printing in the roll-to-floor
configuration, and using the substrate collector if required. If you still see some problems, try to
increase tension by following the recommendations below.
TIP:
When suffering from wrinkles and extreme skew with a self-adhesive vinyl, calendered materials
are typically more sensitiive to temperature. Try to use a thicker core to reduce the effects of the
spindle’s rubber traction grooves, and increase tension as recommended below, using configuration iii,
iv, or v in the table.
If your prints suffer from any of the defects caused by wrinkles, here are some suggestions.
1.
Check that the substrate you are using is the same type as the one you have selected in the Internal
Print Server.
2.
Check that you are using the generic substrate preset for the substrate category. The use of incorrect
values may cause incorrect substrate behavior.
3.
Check that there is no telescoping of the input roll.
4.
If you are using the roll-to-free-fall configuration, check that the knob is released to ensure substrate
tension.
When printing in the roll-to-free-fall configuration and you see diagonal smears of ink, the substrate
may have been badly loaded; or the tension roller may be causing wrinkles in the substrate. In the latter
case, you can try using the tension roller knob to reduce the pressure that the roller exerts on the
substrate, as shown below:
To restore the tension roller pressure to normal, pull the knob and turn it as shown below.
258 Chapter 9 Troubleshoot substrate issues
ENWW