"Sixty percent of the time, it works.....every time!" Thanks for posting, dude!

@JohnHulka-Uncle-Hulka

3 жыл бұрын

You bet and you're welcome! ;) UH

Worked! Thank you very much. Funny how on HP's troubleshooting page i couldn't find anything about this problem...

@JohnHulka-Uncle-Hulka

Жыл бұрын

You're welcome! Very glad to hear you were able to recover your printer writing system. UH. :)

Holy cow. It worked! I assumed it wouldn't, since these things never seem to, but your paper towel solution worked. You're a genius. THANK YOU!!!

@JohnHulka-Uncle-Hulka

Жыл бұрын

Roger that...yup, works like a champ! :). UH

@tumarbongrox6074

Жыл бұрын

How many times did you have to do the cleaning procedure with the paper towel? I did the process at least 7 times and I still have the printerhead error message. Did you clean until there absolutelt NO INK left on the paper towel?

@3sportdad

Жыл бұрын

@@tumarbongrox6074 I think I only did it once. Sounds like you might need a new printer. These HP's haven't treated me too well, but I'm too cheap to buy anything else.

besides my printer being a pain in the ass and having to remapp it.......your paper towel trick worked perfectly. thank you.

@JohnHulka-Uncle-Hulka

2 жыл бұрын

Very glad to hear this! :-). UH

Thank you! Thank you! Thank you! My printer is up and running again. Great video!

@JohnHulka-Uncle-Hulka

2 жыл бұрын

Ah, very great to hear this! ;). UH

Thank you! This was really helpful!

@JohnHulka-Uncle-Hulka

8 ай бұрын

You're so welcome and glad to hear you were able recover from the issue. Thx! UH. :)

100% worked. Thank you.

@JohnHulka-Uncle-Hulka

2 жыл бұрын

Very glad - so glad this helped. :-D. UH

I'm having trouble with the print head. While fiddleing with it the cartridge was all the way to the right and two ink cartridges popped out and wont go back in. The whole assembly is all the way to the right. Thanks in advance for helping.

@JohnHulka-Uncle-Hulka

10 күн бұрын

Also, ensure there is adequate ink inside the built-in printhead. Perhaps get a syringe and squirt 5mm of water into the printhead ports (remove all 4 cartridges)...this will help resoak the internal Printhead foam. NOTE: Ink System Failure and Printhead Errors are usually associated with a lack of ink inside the printhead.

Worked like a charm! Thanks!

@JohnHulka-Uncle-Hulka

3 жыл бұрын

You're welcome and thank you! :-D

@popx4

3 жыл бұрын

What if one color isn’t printing, and I have zero error messages? I’ve run the head cleaning utility many times, and have had HP replace known defective cartridges in late fall of 2020. I’ve always used their Instant Ink membership. I don’t know what the defect was in the cartridges, but if debris clogged the heads from the top side, is there any way to deal with that? If defective cartridges ruined my print heads, I feel like they owe me a printer. Also, one tech had me remove the cartridge and power down the printer for 1 minute. That seemed to work for half a page, but didn’t work a second time.

@JohnHulka-Uncle-Hulka

3 жыл бұрын

@@popx4 Hello. If one color fails to print following repeated 'CLEAN' procedures at the printer then either 'some' air has been ingested into the internal PRINTHEAD due to a poor physical connection between the respective ink cartridge's port (i.e. where the ink comes out) and the interface into the PRINTHEAD's respective ink port interface. I suggest you perform the following 2 corrective actions to resolve: 1. Check the PRINTHEAD for broken or bent pins...see video: HP OfficeJet Pro 6978 Missing, Damaged or Defective Cartridge: kzread.info/dash/bejne/eZeKztyve8ydj7Q.html 2. Manually clean the bottom surfaces of the PRINTHEAD assembly (since the printhead is not removable for your printer model): 3. Using an eyedropper (or teaspoon), drip about 10-15 ml of distilled water (or regular tap if that's all that is available) into the respective color's ink port in the base of the PRINTHEAD (you'll need to remove all 4 cartridges and use a flashlight to see what you are doing here)....this will help establish 'ink flow' into the PRINTHEAD. Install cartridges and run another 'CLEAN' routine via the printer's control panel. Refer to my video on how to perform the actions in #2/#3 above: HP OfficeJet Pro 6978 Missing Colors or Black - Printhead Cleaning: kzread.info/dash/bejne/kW1tt6-gqMbQetY.html Good luck! :-). UH

great - thanks - worked !!

@JohnHulka-Uncle-Hulka

Жыл бұрын

You're welcome! :). UH

TECH TIP: HP OfficeJet Pro 6978 Black Printing Problem | HP902 XL Cartridges: kzread.info/dash/bejne/Y2uDy4-bk9Wbabg.html

I tried these tips and they seem to work only for a short time. I have taken the print head out of the printer a couple of times for a good cleaning and then I and then it will print for a short time. I am wondering if buying a print head on Amazon might work, or would there be a firmware problem?

@JohnHulka-Uncle-Hulka

10 күн бұрын

Also, ensure there is adequate ink inside the built-in printhead. Perhaps get a syringe and squirt 5mm of water into the printhead ports (remove all 4 cartridges)...this will help resoak the internal Printhead foam. NOTE: Ink System Failure and Printhead Errors are usually associated with a lack of ink inside the printhead.

i am instant ink user. customer service sucks. i have put 3 dufferent sets on ink in. keep get code saying one or more inkjets wrong or missing. they are not. i cleaned print heads. did get ot going after messing around for hours. then notice blue showed low but printed. decided change it. this erroe all started over again. i like to shut off wifi to this printer. i think i go buy new injets and not be involved with instant ink. think they have control what i am trying. as said they suck. any helpbe appreciated, thanks

@JohnHulka-Uncle-Hulka

3 жыл бұрын

Hi Allen, Typically the 'wrong or missing' error is caused by a poor connection between one (1) of the cartridges and the internal PRINTHEAD electrical contact. However, if you are actively enrolled in the HP Instant Ink program you can only use 'Instant Ink' HP 902/903/904/905 labeled cartridges otherwise the printer will reject non Instant Ink program cartridges. Once you are unenrolled then you can use refilled, aftermarket, HP regular or even 'Instant Ink Ready' starter cartridges in the printer, but not 'Instant Ink' HP 902/903/904/905 labeled cartridges - those will need to be returned to HP or discarded. Withstanding, for 'wrong or missing' errors (under normal circumstances) you will need to verify plastic latch positioning and that there are no scratches on the cartridges smart chips. Refer to video on how to do this. HP902XL Ink Not Detected | Verify Restraining Latch: kzread.info/dash/bejne/mIKurtmLqLrNnJM.html Good luck! ;). UH

@allenluberger1511

3 жыл бұрын

@@JohnHulka-Uncle-Hulka tHANKS.. STARTING TO THINK OF DOING THAT. THANKS

@JohnHulka-Uncle-Hulka

3 жыл бұрын

@@allenluberger1511 Roger that... ;). UH

2:56 printer head code : Oxc19a0015 What does this mean?

@JohnHulka-Uncle-Hulka

9 ай бұрын

Internal PRINTHEAD electrical issue or poor electrical contact issue in most cases, but sometimes a firmware refresh can resolve the issues. Visit HP.com and download the latest printer firmware for your HP model. Good luck! UH

What do you do if the printhead assembly appears latched to the right of the printer and won't move?

@JohnHulka-Uncle-Hulka

3 жыл бұрын

Hi Richard, first remove the paper tray and ensure you don't have too much paper installed; reinstall paper tray. If this does not work then perform a hard reset of the printer: 1. Power On printer. 2. Unplug power cord from wall. 3. Wait 30 secs. 4. Plug in and power on printer. If this does not work then you may be able to release the printhead via a small interlock switch (small square opening the size of a pen tip)...depress to release. I will need to check one of my 6900 series printers to confirm whether or not the 6978 includes this release feature. Good luck! UH

@richardlafford1397

3 жыл бұрын

@@JohnHulka-Uncle-Hulka I'll look for the opening.

@richardlafford1397

3 жыл бұрын

@@JohnHulka-Uncle-Hulka Performed the hard reset drill a couple times. Paper level not an issue and I can't find any opening on the bottom (paper tray removed) that is in the area of the print head carriage. Actually, part of the paper feed appears to cover that area. When the printer is powered on and you open the cartridge access area, the print carriage should move to the center to allow you to access the print cartridges. On this printer this does not happen and the print carriage cannot be moved (nested at the far right).

@JohnHulka-Uncle-Hulka

3 жыл бұрын

@@richardlafford1397 Hmmm, wondering if the service station wipers below are not disengaging. Have you tried turning your printer off, then open the lid and turn the printer on? If the cartridge moves, unplug the printer and try to move the cartridge manually to the left and back into the middle if you can.

@richardlafford1397

3 жыл бұрын

@@JohnHulka-Uncle-Hulka I think that is what is happening. Open the lid with printer on and the carriage doesn't move. Cannot move carriage with power off either.