HP DesignJet Z6 User Guide - Page 174

1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel and in your software. See View information about the paper on page 35. 2. Try changing to a thicker paper type, such as HP Heavyweight Coated Paper or HP Super Heavyweight Plus Matte Paper. 3. Select a paper type that is slightly thinner than the paper you have loaded; this will cause the printer to use less ink. Here are some example paper types in ascending order of thickness: Plain Paper, Coated Paper, Heavyweight Coated Paper, Super Heavyweight Plus Matte Paper. Print is scuffed or scratched The black ink pigment can be scuffed or scratched when touched by a finger, a pen or some other object. This is particularly noticeable on coated paper. Glossy paper may be extremely sensitive to the basket or to anything else that it contacts soon after printing, depending on the amount of ink used and the environmental conditions at the time of printing. To reduce the risk of scuffs and scratches: ● Handle prints carefully. ● Avoid stacking prints on top of each other. ● Catch your prints as they are cut from the roll and do not let them fall into the basket. Alternatively, leave a sheet of paper in the basket so that freshly printed sheets do not make direct contact with the basket. ● Try loading the paper in sensitive-paper mode: see Sensitive-paper mode (Z6dr and Z9+dr only) on page 35. ● If you have a Z9+ (single roll) and are trying to load a sheet, try loading the paper using the input tray at the rear of the printer: see Load a single sheet on page 32. Ink marks on the paper This problem can occur for several different reasons. 166 Chapter 15 Troubleshooting print-quality issues ENWW