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OfficeJet Pro 8710 Won't Print Cardstock

OfficeJet Pro 8710
Microsoft Windows 10 (64-bit)

I'm trying to print on 65 lb cardstock. Several months ago, I was able to get a stack printed. These days, I get spit back blank sheets, or black smudges/lines going down the page, or squeaking, or jamming. I've wasted a lot of money in expensive cardstock for the occasional working print and I'm at my wit's end.


Here is a thread in these forums where other customers have also been pulling their hair out, with no solutions from HP:


Will a recall by issues or credit towards a new printer or something be coming our way?


20200121_183046.jpgBlack smears and lines, nothing printed.


As one of the users in the aforementioned link suggested, the problem can be temporarily rectified by applying a small amount of pressure against the rear door. They used weighted objects, which likely failed for them due to the printing vibration loosening the pressure over time, but I used my hand. Given the total pressure required to depress the door fully towards the printer, I applied about 50% of that pressure with my fingers and tried to maintain that ratio for the duration of the print. It did work, so I'm assuming that there is a flaw in the rear door where it doesn't shut tightly enough to enable thick paper to be grabbed properly by the rollers; maybe it is a problem that develops over time. Either way, it should be cause for a recall or some type of upgrade credit (purchase value, not current value).

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OfficeJet Pro 8710 Won't Print Cardstock

@midoriha_senpai, Welcome to HP Support Community!


I have brought your issue to the attention of an appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post personal information (serial numbers and case details). 


If you are unfamiliar with how the Forum's private message capability works, you can learn about that here.


Thank you for visiting the HP Support Community. 

I am an HP Employee

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