Supply System Problem Hp Printer 7720

[Gwenda Arguin]

ihave a printer HP OficeJet Pro 7720 Wide Format All-In-One and the error massage is "Supply system problem" after i change the black cartridge into the new one on wednesday, But when replaced with a new one, the printer still runs smoothly, but the next day, Thursday, the printer suddenly shows that error. Can someone help me?

The "Supply system problem" error message on your HP OfficeJet Pro 7720 Wide Format All-In-One printer indicates an issue with the ink supply system, which could be related to the cartridge you replaced. Here are some steps you can take to troubleshoot and resolve the issue.

Hi I would like to in contact with you. I have a new HP 7740 and would like to purchase ink from you. Also, not sure if you have or can source a CISS system for this printer? I am a graphic designer so for me I need to have a full system with lots of ink for my projects. Any help will be greatly appreciated.

Hey are you the person who posted on the downgrade hp firmware video about the wanting the ink? Because I linked my facebook page there for you, Well as for CISS I am not sure what is best to use but I can find out for you. I still would prefer an epson machine since there are many of them come with a sort of built in CISS system. Unless you are using the 7740 because you print on a lot of wide format designs sheets.

Used or counterfeit cartridges to me is usually a warning you can just press ok and its supposed to continue. I dont understand how you cant use the printer after that screen, unless the cartridges have some other issue.

this worked for me, i hooked up a netbook to the printer via usb and installed the basic printer drivers only!, obviously made sure checking for automatic updates was disabled on the printer, and ran the correct software from the link, the first time it failed so it asked me to turn off printer and try again the second time the printer installed the firmware and it took my 3rd party cartridge straight away with just the standard non genuine ink message that you only need to press ok on the screen

Ooooh tell me more about this process, if you could. I have another way to do it via using a file within the firmware named .rfu. I have to post the article, I just havent gotten around to it yet. I am always open to providing as much options to the public to solve this problem. Thanks again for the feedback.

What error are you particularly getting because the cartridges that work with the envy are not similar to the ones in the video. Just usually changing the cartridges solve the problem, unless your cartridge holder is faulty.

Thanks for your guide. I do not try to downgrade a HP 7740 Firmware yet. But I probably need to.

My problem is that I refill the original Ink jet cartridges and the printer could not recognize them.

Then I try to power off and on the printer, several times, and Black cartridge was recognized but with very little fill in it, The other three are still not recognized.

Question: Shall I buy a 3th party cartridge and then try to downgrade the firmware?

Best regards,

Aleksandar

On HP 8210 it works via USB port (on the back side). One comments Windows Defender (or other firewall) must allow conection to public network (two checkbox must be checked.) I other way you do not have posibitiy to check your printer to dowgrade.

I tried several times using USB cable and the downgrade software, but it keep running until timeout without update the firmware. Using an USB drive is the only way that works for me, and is very easy way to do it. Download the downgrade (update) software package, unzip it (even if you get the EXE version, just look for 7Zip tool), locate the firmware file inside (.ful ou .ful2 file with about 63MB), copy it to a USB drive, insert on the printer, select update from USB, sit, wait and voil!

I have refilled the original hp 7740 cartidges but ink level is still showing empty. Printer is not allowing me to print and display message to replace cartridge. How can i fix this without buying new ink?

There is a chip on the cartridge which records how much ink it has remaining in it. So no matter how many times it refills it will always say empty. Watch this video to get an understanding of what maybe happening to you _JyA

Just wanted to post that this worked for me on my 7730 and my printer was up to date as of today 16/09/22. I used the Wi-Fi method as the installation software recognised the printer straight away! Once started the printer did its thing and seemed to reset completely asked for language Wi-Fi settings etc.

Below, is a list of some of HP's suggestions from the above link, as well as some procedures which are definitely NOT HP-AUTHORIZED. Some steps involve (minor) risk of damaging the printer if you're not careful, or don't follow instruction carefully.

Others perform this step with commercial inkjet cleaner formula. Some people use their own formula made of alcohol and original Windex. Best viewed on Youtube. Cleaning with anything other than water is NOT according to HP's instructions.

5. Remove the ink cartridges, then remove the printhead. Reinstall the printhead, and reinstall the ink cartridges. Note that HP's documentation states you sometimes have to do this 3 or even 4 times for it to take effect. You can see this in HP's documentation on their website about resolving this error. As shown on HP's webapge, and also a video hosted by HP.com . There are also videos on Youtube which show this.

6. Check the CMOS battery. Apparently a dead CMOS battery can cause this problem. I'd only recommend this for people who aren't too scared of taking things apart. It's pretty tight in the side of the printer where the logic (circuit) board sits. That being said, if you have steady hands, are patient, and can follow instructions, well, give it a try.

7. Some videos tell you to do what HP calls a Semi-full reset to fix this problem. A semi-full reset is a sequence of keys on the control panel that you press that resets certain information in the printer to original settings. This sometimes makes the printer "forget" cartridges dried up, ink was not recently pumped, etc.

However, I have scoured the Web and can't find any way to initiate a semi-full reset if you are stuck at the "ink system failure" error. If you are not stuck at that error, then a semi-full reset is well worthy trying.

10. Check the inside of the printer for spilled ink. This can jam things up or trigger sensors which are not what you want. I'm not sure what chemical to use to clean spills, but that would most likely be in the Youtube videos.

I had this exact problem with my HP5720 printer after I replaced two HP cartridges with new ones (old and new were genuine). Followed all suggestions to resolve. All without any success. Kept getting same error message. Needing to print one page, I put the used cartridges back in knowing they had minimal ink in them. Lo and behold! Error cleared. Reinstalled the new cartridges and all good! :)

solution 2: see this video. =VlKwGVq4.... but instead of using the aluminium chips i prefer cleaning the copper contacts with penny brite cleaner .[it worked for me , my printer was sitting idle for a long time and it damaged the contact surfaces.]. it is non toxic available on amazon. see the video you will understand. if cleaning the contacts does not help then you can try aluminium chips. but remember then you have to watch out for empty cartridges.

This method works I used the aluminum foil strips and the error cleared. I was able to get the printer heads to clean and perform the additional alignment procedures. The printer had not been used for 3+ months and had been sitting with 2 empty cartridges,

What size/type bit do I need to remove those two "screws" that hold the board onto the printhead? None of the bits I have seem to fit it (all too large). I'm sure I can order it from iFixIt, but need to know what I need first.

I learned much reading this post. I ordered the print head replacement from amazon but returned it for a refund less a 10% gouge from the non-Amazon seller to put it back on his shelf. I did not know about the need for starter cartridges. The reason I returned the printhead is because after I received the PH I went to Best Buy and found a new HP OfficeJet 8600 multi-function machine on sale for approximately 85% of MFR Suggested Retail price. Plus I think they gave me money for recycling my old machine. My background includes 20 years in the Navy working at the intermediate maintenance level. This level of maintenance is usually more involved than organizational (or line) maintenance. When a fix involves replacing a CMOS battery or printhead, and HP has set up a means for recycling (or renovating, or refurbishing) their equipment I bow and get out of the way.

Had this problem suddenly appear. Removed ink carriage and cleaned contacts with medical isopropyl alcohol wipe. Placed folded paper towel under print head to bleed and clean print head. Then realised had two generic inks (No indication they were empty!) so replaced these with genuine HP. Re-assembled. All OK. Been an excellent printer for over 4 years, just genuine inks cost a fortune in OZ ($160) for full XL pack. And yes new ones look junk! So maybe another brand when replacement needed.

Had this problem and still do. tried every cure on the web, nothing worked. can't get around the ink problem screen. bought a new printer head , no solution. last thing I am going to try is replacing the cmoss battery. Hope that works.

HP sucks. had this printer for 4 years and no problems. after changing inkt cartridges (the expensive ones from HP) the problem started. because I spend so much on cartridges I did not want to give up. $400 plus further I am ready to call it a day. Better off buying cheap printer and toss it when problems start.

I had an error like the ones mentioned above except mine said "Do not use SETUP cartridges". I tried performing a semi-full reset and now my printer is bricked... the carriage is stuck to the right, I cannot move it and I cannot access the service menu as the "back" LED is non-functional, blocked because of the status message.

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