HP Latex 2700 User Guide 3 - Page 338

Preparation ● The quality of corrugated polypropylene can vary greatly. A corona treatment is generally applied when manufactured to increase the surface tension for better ink adhesion. This corona treatment will diminish over time. Substrate that has been shipped long distances or stored for an extended period of time will have more problems with ink adhesion. ● This substrate tends to hold static charge. Avoid sliding it from the stack or carrying it across carpeted surfaces. ● Follow the advice in Static electricity on page 290. ● Ensure that substrate tables are attached and secured to the printer to provide a grounding path for static-loaded substrate. ● Substrates are often supplied in non-rectangular form, so trimming them to rectangular may be necessary for some applications, such as edge-to-edge printing. Make sure all edges are cut clean and are free from burrs and/or excess substrate. ● Wipe the printing surface with an anti-static tack cloth to remove static charge and any dust or debris. ● If an anti-static tack cloth is not available, a general-purpose industrial cleaner (such as Simple Green) on a lint-free cloth can be used to remove dust or debris. Allow the sheet to sit out on the input table for about 5 minutes to allow the cleaner to evaporate and the static to dissipate. Recommended print modes ● Depending on application, ink coverage, and image content, all print modes may print acceptably. ● Faster print speeds can be obtained without noticeable banding by feeding the substrate with the flutes parallel to the printhead carriage motion. Printing ● Select PET Film when configuring and loading these substrates. ● Non-white substrates may not be detectable by the onboard camera. In this case, create a copy of the Corrrugated Plastic substrate using the Substrate Wizard and change the Detectable by printer option to No. ● These substrates are heat-sensitive. They may require a higher vacuum setting, faster print modes, greater than standard head height, and printing delays in some combination to achieve best output. ● Use a PET Film substrate preset from the RIP software. Output handling ● Ink adhesion improves over 24 hours. Sometimes it is beneficial to wait 24 hours before cutting full-bleed prints. Flexible films 331