HP Designjet L26500 HP Designjet L26500 Printer series - Add a new substrate t - Page 2

Add a new substrate type - HP DESIGNJET L26500 printer series EN Table 1 Substrate families Load substrate and align printheads 1. If the substrate is narrower than the spindle, move it leftwards so that it is centered in Substrate family Description the print zone. 2. Select a generic substrate family at the printer's front panel from Table 1. Self-adhesive PVC films with adhesive on one side, which can be white-finished or transparent. The liner can be paperor plastic-based. There are two main manufacturing processes: calendering and casting. Create and/or install a new media preset following the RIP instructions 1. Check media preset availability in the RIP and/or substrate vendor's website. 2. If not available, check again using the Media Finder search application located at www.hp.com/go/L26500/solutions. Banner Textile Usually a polyester mesh (or fabric) covered with PVC coating. There are also recyclable types to cover the same applications (green banners). Banners can be frontlit or backlit. Textile substrates are usually composed of polyester fibers. Some of the textile substrate types come with a liner to avoid the ink trespassing the substrate. Textiles that are very stiff (such as polyester canvases) should preferably be loaded as "Low-temperature substrate". Film Usually a polyester film (although there are other materials such as PVC or PC) for backlit applications. They are typically translucent, although there are also transparent versions. Was media preset No available? Yes Synthetic paper Paper - Aqueous Substrates manufactured using synthetic resin, mainly extruded from polypropylene (PP). They have characteristics similar to those of plastic film, but their appearance and properties are similar to regular paper made from wood pulp. Paper-based (cellulose) substrates with or without coating or offset paper. The main difference with the billboards is that these papers are not compatible with solvent inks. Weight is usually around 100 g/m². 1. Choose the generic substrate family according to Table 1. 2. In the RIP, create a copy or use an available media preset from the chosen family. 3. If you create a copy, select a name for the new substrate. Start printing 1. Select the initial print mode. For the first trial, a 12-pass bidirectional print mode is recommended. 2. Print the diagnostic plot available in www.hp.com/go/L26500/manuals, or in ip-addr/hp/device/webAccess/images/new.tif, where ip-addr is the IP address of your printer. Start printing using the available print modes Is the print quality OK? Paper - Solvent Paper-based (cellulose) substrates with coating to allow their use in solvent printers. They usually have a limited water resistance. Low-temperature substrate (such as HP Photorealistic) Mesh Paper-based (cellulose) substrate with coating (gloss and matte finishing). It has a weight higher than the other billboard and offset substrates (200 g/m² or higher). The main difference is its rigidity. Usually a polyester mesh covered with PVC coating with holes. Some of these substrates may have a liner and be self-adhesive. Table 2 Checking the quantity of ink on the substrate Check that the ink quantities in your preset are adequate. Look at the plot color patches and check that they have the right ink quantity using the guidelines below: 1. Too much ink: The patch shows one or more of the following problems: The last two or three scales of the plot look the same. Vertical bands Horizontal bands Coalescence grain Check (and correct if needed) the ink quantity No in the printed plot, using Table 2. If your preset has too much ink Yes You may have chosen a media preset that uses more ink than your substrate allows. Consult your RIP documentation to make sure you are applying the right media preset. Consult your RIP documentation on how to lower the total ink limits of the media preset. Is the print quality OK? Consult the information resources No available at www.hp.com/go/L26500/solutions. Yes Process complete 2. Correct amount of ink: The patch has no defects and increasing amounts of ink result in increasing color density. The last scales of the plot show a smooth increase 3. Too little ink: The whole plot looks washed out. Increase ink limits. NOTE: Backlit and some fabrics substrates usually require to be used with the "High Ink Limit" option enabled in the RIP.