HP Designjet 250c Service Manual - Page 195

Misaligned Colors Symptoms The colors on the plot are misaligned. (See also ' User's Guide, chapter 4.) Refer to the printĆquality plot ' page 8Ć56: 4. - Pen-to-Pen Alignment Secondary: The first of these patterns tests alignment between the cyan and magenta cartridges; it should be blue with no cyan or magenta shadows. The second tests alignment between the cyan and yellow cartridges; it should be green with no cyan or yellow shadows. The third tests alignment between the magenta and yellow cartridges; it should be red, with no magenta or yellow shadows. 5. - Pen-to-Pen Alignment Primary: These patterns also test alignment between the different cartridges. The inner color in each disk should not overlap the outer color. Product Fault The cartridges are misaligned with respect to each other. Solution Perform a print cartridge alignment. Bleeding, Blooming and Wicking Symptoms Blurred lines. (See also ' User's Guide, chapter 4.) D Bleeding: Different color inks, printed side by side, run into each other. D Blooming: Ink absorbs into the paper, spreading beyond the desired ink dot. D Wicking: Ink spreads along a fiber or fibers in the paper, creating a spider web" effect. Product Fault Plotting in fast mode. Media Fault D The ink is incompatible with the media type. D Environmental conditions may affect the media. (Temperature or humidity levels are too high.) Solutions One or more of the following actions may be appropriate to solve the problem: D Change the plotĆquality mode: Plotting in Best mode slows plotting but improves quality. D Use better quality media. D If you are plotting on vellum or translucent media, try using HewlettĆPackard media. D Recommended environmental conditions for optimum plot quality are in the range of 15 - 35 degrees Celsius (59 - 95 degrees Fahrenheit) with 20 - 80 % relative humidity. 330 350C D Pen problem: TTOE (Thermal TurnĆOn Energy) has not been performed because of incorrect cartridge change. With the power ON, open the top cover and reseat the cartridge. C4699Ć90000 Troubleshooting 8Ć61