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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- A3 prints show wrong colours and wiggly lines

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02-27-2021 03:00 AM
A4 prints are ok but when printing A3 straight lines are wiggly and colours are wrong
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Accepted Solutions
02-27-2021 04:35 AM
Hi,
Can you see the HP Officejet Pro 7740 Basic Device Software installed under Programs and Features?
If the answer is No, the issue likely occur due to using a native Class Driver of the OS.
Follow HP Easy Start by selecting the HP Basic or HP Full Feature Software option and complete the HP Software installation, then check for any difference:
https://ftp.hp.com/pub/softlib/software13/printers/COL96741/HPEasyStart_12_6_09.exe
Shlomi
Click the Yes button to reply that the response was helpful or to say thanks.
If my post resolve your problem please mark it as an Accepted Solution 🙂
02-27-2021 04:35 AM
Hi,
Can you see the HP Officejet Pro 7740 Basic Device Software installed under Programs and Features?
If the answer is No, the issue likely occur due to using a native Class Driver of the OS.
Follow HP Easy Start by selecting the HP Basic or HP Full Feature Software option and complete the HP Software installation, then check for any difference:
https://ftp.hp.com/pub/softlib/software13/printers/COL96741/HPEasyStart_12_6_09.exe
Shlomi
Click the Yes button to reply that the response was helpful or to say thanks.
If my post resolve your problem please mark it as an Accepted Solution 🙂
02-27-2021 11:03 AM
Hi Shlomi,
your advice did help. I initially installed the printer software using HP Smart, but didn't notice that no original HP Driver was installed. Now the driver calls itself HP OfficeJet Pro 7740 series PCL-3 (20.79.1.6733) and A3 printing works. Yeah.
Thank you very much for your help
Regards, NemoAll