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Matt HodgeFlag for United States of America

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HP Color laserjet 400 Printer prints blue shadow around text in PDF

Hi - I have an HP color laserjet 400 that after changing the black toner yesterday, when I print in normal color mode, the text of the PDF file has a blue shadow around it, almost like a print on top of print. It ONLY seems to be happening in PDF files, Word docs are fine. If I go in and manually set it to "print in grayscale" it prints fine, but normal color mode, with a shadow. Without having to make the "print in grayscale" a printing default (because they also print in color) is there a way to correct this, or just make it print normally like a word doc?
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Joe Winograd
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I can make print correctly if i  change the default printer setting to print in grayscale. Then, it prints crystal clear, but as soon as i revert back to the normal (out of the box) settings, it prints with a blue shadow. This ONLY seemed to happen when I changed the black toner cartridge, but it doesent seem to be a problem with the cartridge itself, because like i mentioned, if i choose it to print grayscale, it prints fine. Keep in mind, this ONLY seems to be happeing with PDF files, if I print a word doc (without changing it to grayscale printing) it prints sharp and normal. I have tried other PDF readers like Foxit, same result.
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I have an update. When I first purchased this printer for the client, we purchased 2 of them, (HP color laserjet 400) and placed the other one in another office. To troubleshoot, I sent the same PDF file to the same printer model, different office, and the pdf file printed perfectly. On the printer that the pdf file prints perfect on, i put the toner cartridge from the "bad printer" in it, and it STILL printed perfectly, eliminating the toner as a problem. Now, the question is, I didnt have modify ANY settings, i used the default settings to print to the "good printer". Why would this happen? I'm using the exact same driver/software, just a different IP address.
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Thanks for responding. Yes, both PDF files were printed to both good/bad printers using the same computer. What I even did, to eliminate another possibility, is in the printer properties, i only changed the IP address/port thinking that if all the printer settings are the same, if it prints exactly the same as it does (bad-with shadow) on the first computer, then it may have something to do with the printer settings. Now that I've eliminated the toner/printer properties, one would think that it leads to an Adobe setting that is off. BUT, the fact that i used another PDF reader throws away THAT theory. Unless of course, Foxit PDF reader is using the same settings from Adobe Reader. Ugh.
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Seems the problem was resolved by removing all printer drivers and reinstalling them.
Ah, that's great news! Thanks for posting the solution. Regards, Joe