![]() ![]() Unplug the printer's power cord, detach the duplex unit at the back (push to the left and pull back to disengage the unit from the printer). 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. Photosmart printers often include the name “Photosmart” and the model name or number in the upper left-hand corner of the printer’s front face.Stood hp 310a on its side. HP printers can be identified by the HP logo, which includes the name “HP” in lowercase font inside of a circle. Some Photosmart printers include all-in-one capabilities meaning that the printer can print, scan, and copy documents and photos. The HP Photosmart line includes some compact photo printers but mainly features color inkjet printers. HP produced its first inkjet printer (the HP Thinkjet) in 1984. Inkjet printers are the most common type of printer. Canon, HP, Epson, and Brother account for the majority of inkjet printer sales in the worldwide consumer market. In the 1970s, Epson and Hewlett-Packard developed inkjet printers that could reproduce digital images generated by computers. Inkjet printing technology was developed mainly during the 1950s, and the first inkjet printer was developed by Ichiro Endo for Canon. Inkjet printing recreates a digital image by propelling droplets of ink onto paper and plastic substrates. This page is for HP’s line of consumer-based photo printers under the “Photosmart” name. Note that “Photosmart” is also the name of a line of HP digital cameras. The HP Photosmart is a brand of inkjet printers produced by Hewlett-Packard. ![]()
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