HP Latex 3200 Users Guide - Page 370

Check that there is no telescoping of the input roll.

Page 370 highlights

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. 364 Chapter 10 Troubleshoot substrate issues ENWW

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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.
364
Chapter 10
Troubleshoot substrate issues
ENWW