![]() If you see the paper pick-up drums slip on the paper, then you may have better luck. Here's a written summary based on my experience: There are image and video instructions available from HP. ![]() Scenario 2: the pick-up drums do roll, but they slip on the paper Probably the entire printer must be torn down, and I don't expect you will be able to easily fix the excess play on the paper pick-up mechanism that drive the rubber rolls when pressed on the stack of paper. I suppose that because of excess play (programmed obsolescence?) eventually the cogwheels that drive the drums will slip. When the drums touch the paper, they simply don't rotate. When lifted, you will be able to rotate these drums in one direction. When printing, they are dropped to the top of the paper stack and will engage to separate the topmost sheet off the stack. When not printing, these drums are lifted. It looks like there is too much play in the paper pick-up unit (at the rightmost end inside the printer) on which both pick-up drums are mounted on a single arm. You most likely hear a grinding noise of plastic cogwheels slipping when the printer tries to feed a sheet of paper. Scenario 1: the pick-up drums do not roll, you hear a grinding noise Thanks much for steering me in the right direction. My printer had little use as I have a second one that I use for everyday printing, so, wanted to save the hp 310 as my good scanner/color/printer. Now works great! Hardest part was manipulating the dabbing of the epoxy on the spline due to working with mirror image. Waited until next morning to try printer. Very carefully slid the gear with fingers back on the shaft spline viewing that it was centered on the mating gear. Mixed some two part epoxy and carefully dabbed small amount on the shaft spline until about 100% coated. Then slid the gear down & off the spline. (can move the gear by hand back in line with the gear train and try once to see if it fixes problem). One small plastic gear slid off the steel shaft 'spline' not engaging drive train. Taped drop light to now top of printer looking at the mirror/gear train. Positioned small flat mirror angled on its edge to view gear train. Expert Customer Support: Our knowledgeable customer support team is always on hand to answer any questions you may have and help you find the right part for your HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A.Stood hp 310a on its side. ![]() Fast Shipping: Our fast shipping means that you can get your device up and running in no time.Affordable Prices: We understand that buying replacement parts for your HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A can be expensive, which is why we offer affordable prices for all HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A parts. ![]() Quality Products: All of our HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A parts are certified genuine and tested to ensure they meet the standards you expect from your HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A. ![]() These HP PHOTOSMART PREMIUM E-ALL-IN-ONE PRINTER - C310A - CN503A replacement parts are certified genuine, procured directly from the HP as part of authorized distribution deals.
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