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This question has been classified as abandoned and is being closed as part of the Cleanup Program. &nbsp;See my comment at the end of the question for more details.
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This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.

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My HP 4600 started printing black blotches over everything I print this morning, and I have an important presentation that I need to get published.<br />
<br />
I opened the printer, and I do not see any obvious problems, or toner leaking. &nbsp;It seems MUCH worse if I use double sided mode.<br />
<br />
Any ideas of where I should start? &nbsp;I only have one set of cartriges for it, and they are remanufactured, but it didn't do this yesterday and they are relatively new.<br />
<br />
I attached a scan of what the Print Quality wizard printed in .pdf format to this post<br />
<a href="https://filedb.experts-exchange.com/incoming/2010/11_w46/367748/HP4600-troubles.pdf" target="_blank" class="file-inline" title="example (14.2 MB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>HP4600-troubles.pdf</a>
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HP4600-troubles.pdf

My HP 4600 started printing black blotches over everything I print this morning, and I have an important presentation that I need to get published.

I opened the printer, and I do not see any obvious problems, or toner leaking.  It seems MUCH worse if I use double sided mode.

Any ideas of where I should start?  I only have one set of cartriges for it, and they are remanufactured, but it didn't do this yesterday and they are relatively new.

I attached a scan of what the Print Quality wizard printed in .pdf format to this post

HP4600 printing blotches - HELP!  important presentation!

A printer is a peripheral which makes a persistent human readable representation of graphics or text on paper or similar physical media. Traditional printers are being used more for special purposes, like printing photographs or artwork, and are no longer a must-have peripheral; 3D printing has become an area of intense interest, allowing the creation of physical objects. An image scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. Hand-held scanners, where the device is moved by hand, have evolved from text scanning "wands" to 3D scanners used for industrial design, reverse engineering, test and measurement, orthotics, gaming and other applications.