HP Latex 3000 Printer - Manual (Page 261)

The substrate is not flat
If the substrate does not lie flat when it comes out of the printer, but has shallow waves in it, you are likely to
see defects in the printed image, such as vertical stripes. This can happen when you use thin substrate that
becomes saturated with ink; it can also be caused by the combination of heat and vacuum pressure that is
applied to the substrate.
1. Check that the substrate type you have loaded corresponds to the substrate type selected in the
Internal Print Server and in your software.
2. If you are using a paper-based substrate, try changing to a thicker substrate, or reduce the amount of
ink.
Printing issues
A spindle latch suddenly opens during printer operation
If a spindle latch is not closed before starting the substrate load, or it is opened by someone after the spindle
was already moving or while the substrate was under tension, the spindle can move out of place. Closing the
latch in those conditions can cause an incomplete latch engagement, and then at some point the latch may
spontaneously open completely.
The best solution is to eliminate substrate tension, avoid spindle movement, and then close the latch
properly. To do this, return to the substrate load/unload menu, ensure that the spindle is properly in place (in
case of doubt, extract it a bit and then push it back fully inside again), then close the latch (the blue part
should now go down completely).
The substrate advances with a loud continuous sound of vibration
A loud continuous sound of vibration during the substrate advance can be caused in the following ways:
● The input spindle is not applying tension.
● Wrong tension or vacuum settings result in an incorrect balance of forces on the main roller.
If you hear this sound, here are some suggestions:
1. Check that the substrate you are using is the same as the one you have selected in the Internal Print
Server.
2. Check that you are using the generic substrate presets for the category. The use of incorrect values may
result in incorrect substrate behavior.
NOTE: Only substrates with high friction along the platen or substrates that easily wrinkle with
temperature need high output tension values. Check that your output tension is recommended for your
substrate.
ENWW Printing issues 255