Re: 7310 office jet all in one - black ink problem
Airportbum is correct and a huge help. I called in to HP and when I gave my serial number I was told I was a year over warranty and out of luck. However, once I explained the wire puncture and said it was a "broken carriage shute and print cartridge rejection" (along with the term "product design flaw") they sent me a new one.
Re: 7310 office jet all in one - black ink problem
You are right about the "extended paper clip".
Here's what I found when this happend on my two 7410's. Take a look at where the ink cartridge slides into it's holder. Shine a flashlight on the circuit board at the rear. You will no doubt find it has a puncture in it that breaks the little tracer wires on the board. The culpret is the tension spring arm. It likely has come off it's base support and when that happens, and you install a new cartridge, the cartridge will push the tip of the tension wire g right into the circuit board. After you fix the circuit board, apply some silicone glue to the spring base mount to hold it in place. I hope I can find the part and remove and replace it easily. That I haven't done yet.
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Hp devices are famous for simply stopping printing if they even 'think' they are out of ink. The way this is done is electrically through the circuity on the ink cartridges. Two things I'd recommend:
1) Remove each cartridge and take a pencil eraser and rub up and down with the eraser on the circuit side of the cartridge. Don't over do it, but do rub until you see the metal become a bit shinier. Then reinstall the cartridge and see if the problem goes away.
2) Try a new cartridge and see if the issue goes away. Always a good practice to keep a spare on hand!
Hope this helps!
If you are continuously getting the error message "remove and check... " etc. you may have the the x-bias spring issue which plagues many models which use the same ink cartridge numbers as this machine. There is a small metal prong which serves to stabilize the ink cartridge in the carriage which has a tendency to break out of the small plastic tab which holds it. The problem is then complicated by reinserting the cartridge and pushing that metal prong through the plastic pcb wiring traces at the contact points which then renders the machine useless since this is not an easily replaceable part (for no good reason as far i can see, stupid design.) If you look into the carriage where the cartridge sits with a flashlight and see that there is no pinhole tear in the contacts, then the spring may not be present at all or improperly positioned. This can be worked around easily by inserting some folded paper beside the cartridge in the carriage (like putting a book of matches under a leg of a wobbly table). If there is a hole, though, you may wish to Google "x-bias spring" issues or search 7210,7310, 7410 models on fixyourownprinter.com for some possible help with getting a replacement. The carriage assembly can be ordered, but it is a real pain to install so the average end-user isn't likely to want to go that route.
Re:cartridges expiry et al- stupid thing, but did you take the tape off the contacts? Sometimes people forget this. Otherwise ammonia is the secret ingredient for unclogging printer ink. If it is due to expiry dates, there is also a workaround to be had by setting the dates back to original factory settings by a full reset. You can find the procedure in the manual or google "full reset" procedure for your model #.
Look on the right side where the cartridge goes, if the spring on the right is hanging loose it might have poked a hole in the ribbon cable at the rear near the contacts. If so it's time for a new printer, if OK, check the exp. date on the ink cartridge and if it's been refilled or a generic ink you may just need another one.
Look inside where that ink goes, if the spring on the right is hanging down, or has poked a hole in the ribbon cable at the rear, you will need to replace the carriage assembly. A new printer would be less expensive.
Is there a metal wire (clip) hooked on black plastic in the ink carriage? If not, these are notorious for breaking the small plastic hook....when broken, the cartridge is not held in proper postion so printer won't recognize that the ink cartridge is installed......no replacement parts are available for this series of printers.
There is a small spring that holds the ink cartridge in the ink holder.
You will see it stick out from the right hand side of the ink holder
where the ink cartridge slides in. If that spring isn't being held to
the ink holder by two plastic tabs, (I.E. the plastic tabs are broken)
the printer will never recognize the cartridge. If the printer is still
under warranty I would contact HP or an authorized repair center for
HP. Both the black and color ink holder has this spring. I know of no
way to repair this kind of breakage.