HP Designjet L28500 HP Designjet L28500 Printer Series - User's guide - Page 27

Handle the substrate, Overview, Substrate tips

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4 Handle the substrate Overview You can print on a wide variety of printing materials, all of which are referred to in this guide as substrates. Substrate tips Choosing the correct substrate for your needs is an essential step in ensuring good print quality. Here are some tips about substrate usage. ● Allow all substrates to adapt to room conditions, out of the packaging, for 24 hours before using them for printing. ● Handle film and photo substrates by the edges, or wear cotton gloves. Skin oils can be transferred to the substrate, leaving fingerprint marks. ● Keep the substrate tightly wound on the roll throughout the loading and unloading procedures. To make sure that the roll stays tightly wound, consider using tape to stick the leading edge of the roll to the core just before removing the roll from the printer. You can keep the roll taped during storage. If the roll starts to unwind, it can become difficult to handle. NOTE: The use of tape to stick the leading edge of the roll to the core is especially important for heavy substrates, because the inherent stiffness of the substrate can cause it to loosen and unwind from the core. ● Using the take-up reel with some substrates, such as textiles, may give the printer better control of the substrate and is likely to improve print quality. ● Print quality could be impaired if you use a substrate that is unsuitable for your image. ● Make sure that the appropriate print-quality setting is selected in the RIP. ● Whenever you load a roll, the front panel prompts you to specify the substrate family that you are loading. For good print quality, it is essential to specify this correctly. Check that the substrate belongs to the family named on the front panel, and check also that it matches the substrate profile in the RIP. ENWW Overview 21

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4
Handle the substrate
Overview
You can print on a wide variety of printing materials, all of which are referred to in this guide as
substrates.
Substrate tips
Choosing the correct substrate for your needs is an essential step in ensuring good print quality.
Here are some tips about substrate usage.
Allow all substrates to adapt to room conditions, out of the packaging, for 24 hours before using
them for printing.
Handle film and photo substrates by the edges, or wear cotton gloves. Skin oils can be transferred
to the substrate, leaving fingerprint marks.
Keep the substrate tightly wound on the roll throughout the loading and unloading procedures. To
make sure that the roll stays tightly wound, consider using tape to stick the leading edge of the roll
to the core just before removing the roll from the printer. You can keep the roll taped during
storage. If the roll starts to unwind, it can become difficult to handle.
NOTE:
The use of tape to stick the leading edge of the roll to the core is especially important for
heavy substrates, because the inherent stiffness of the substrate can cause it to loosen and unwind
from the core.
Using the take-up reel with some substrates, such as textiles, may give the printer better control of
the substrate and is likely to improve print quality.
Print quality could be impaired if you use a substrate that is unsuitable for your image.
Make sure that the appropriate print-quality setting is selected in the RIP.
Whenever you load a roll, the front panel prompts you to specify the substrate family that you are
loading. For good print quality, it is essential to specify this correctly. Check that the substrate
belongs to the family named on the front panel, and check also that it matches the substrate profile
in the RIP.
ENWW
Overview
21