Xerox Phaser 7750DN Laser Printer "designjet 450c cartridge error" Questions

designjet 450c error lights i have a hp designjet 450c a0 plotter and i have the error lights for cartridges and data on continuosly. Do all the cartridges need changing if not how do i know which one

cartridge light error keeps on blinking! All my color cartridges when inserted give me three green lights which mean OK whereas when i reinsert my black cartridge, the plotter doesn't recognize it (no

...450c orange cartridge light keeps blinking checked all cartridges only black cant get ready light to come on 3x so light keeps blinking.took out black cleaned it but still wont blink ready In most ...

Error lights Steady KLM (i.e. All three lights on the right Cartridges, Data and Media are on). When I press cancel, the lights for Media and Align Media come on. What do I do now? Lights are ...

Plotter works perfectly except......doesn't print. It works as if it is printing, no errors, all normal (have replaced cartridge) I will try two things: HP Service Manual page 1-3 recommends that ...

I recently replaced the belt in my HP 450C plotter. I hadn't used it in about a year but I put new ink in too. I got one really light test page and now nothing. The print head tries to do the job and ...

ERROR LIGHTS My data light and my cartridge light are a solid orange. I can't cancel or by pass them. Tried replacing all cartidges. Any one have any ideas? Is your ready light on as well? If so this ...

...cartridge, the printer takes in the paper and gives it out blank for some lenght and then gives up not able to detect it in my computer, I am using Windows 7 and have installed drives for windows 7 ...

error group light (on the left). If I hit the cancel button, then the yellow cartridge light and the green ready light are on. If I turn the printer off and move the print catridges from side to side,