HP Designjet 2800/3800cp Service Manual - Page 165
instead. If using HP High-Gloss White Film, Gloss Photo or 3M Vinyl instead.
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PQ Problem: Printheads Affected: Problem Description: Cause of Problem: Corrective Action: Bleed into white areas on Glossy media (Chia) Imaging Inks (maybe UV Inks on non-recommended medias) 1-3 millimeter ring or edge of light coloring where white should be. Occurs worst on thin lines, and after white regions of a print. Thin-layer chromatography effect occurring between inked and uninked areas of the media. Try the following: 1 Printing in a faster printmode will reduce or eliminate this effect. 2 Add a 0.5cm stripe of the color showing the problem down the sides of the print, where it can be cut off after the print is finished. 3 If using non-HP media, try using HP media instead. If using HP High-Gloss White Film (not recommended for CP series!), try HP High Gloss Photo or 3M Vinyl instead. 4 Reduce ink density in the affected area of the print. This may prevent the problem as well. PQ Problem: Printheads Affected: Cause of Problem: Bleeding in stacked prints Imaging Inks Prints develop bleed when stacked up soon after printing. PQ Problem: Cause of Problem: Light band with frequency of 1/2 media roll circumference Media stop or core insert rubbing against roll cover, causing media tension change. Print Quality HP DesignJet CP Series Printers 6-23