User profile for user: alexier
alexier Author
User level: Level 1
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HP Office Jet Pro 7720 using iMac macOS 14.4.1 Fine gaps in printing

Hi all.


I have a feeling apple forum might not be where I need to be but HP are not really helping so thought I'd try here :-)


I've got a HP Pro 7720 and I've got issues with fine gaps while printing. I've tried all the usual stuff and after 2 days I'm exasperated!

 

I managed to print out a nozzle test and it's showing gaps but all this 'seemed' to happen when I had a paper jam - I've checked everywhere as carefully as I can so not sure if this is a nozzle or jam issue but I really need it clearing up and if I can do it all the better 🙂


I've attached a photo of the report if that helps and I have determined that printing a copy direct from the printer and also sending a picture or file to print creates the same issues. (Hence why I don't think having a Mac makes a difference but shared wisdom and all that haha)

 

Any help very very much appreciated. 

iMac (M1, 2021)

Posted on May 4, 2024 11:20 AM

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User profile for user: MartinR
MartinR
User level: Level 6
19,369 points

Posted on May 4, 2024 1:35 PM

Those lines (gaps) indicate that you need to clean the print head(s). It is a common problem with inkjet printers.


Inkjet printers usually have a utility to do both Nozzle Check (which you have done) and Head Cleaning. You should be able to find this in the HP Utility. Or via System Preferences > Printers & Scanners > [printer name] > Options & Supplies > Utility > Open Printer Utility.


After you run head cleaning, print another Nozzle Test to check status. Sometimes it takes 2 cleanings to set things straight. Be aware that head cleaning consumes ink, so you don't want to keep doing it over & over. I don't recall ever having to do it more than 2x.

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User profile for user: MartinR
MartinR
User level: Level 6
19,369 points

May 4, 2024 1:35 PM in response to alexier

Those lines (gaps) indicate that you need to clean the print head(s). It is a common problem with inkjet printers.


Inkjet printers usually have a utility to do both Nozzle Check (which you have done) and Head Cleaning. You should be able to find this in the HP Utility. Or via System Preferences > Printers & Scanners > [printer name] > Options & Supplies > Utility > Open Printer Utility.


After you run head cleaning, print another Nozzle Test to check status. Sometimes it takes 2 cleanings to set things straight. Be aware that head cleaning consumes ink, so you don't want to keep doing it over & over. I don't recall ever having to do it more than 2x.

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HP Office Jet Pro 7720 using iMac macOS 14.4.1 Fine gaps in printing

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