LaserJet M4345

The LaserJet M4345 carried HP's 4345 multifunction into the M-series era — the same 2004-born A4 all-in-one offices trusted, refreshed for the mid-2000s. Print, copy, and scan remained its core strengths.

It takes the HP 45A cartridge (Q5945A). Compatible 45A toner and genuine OEM Q5945A cartridges in stock.

Toner Cartridges for LaserJet M4345

This printer works with the following toner cartridges:

• HP Q5945A

More HP Printers

• LaserJet 4345
• LaserJet 4345MFP
• LaserJet 4345X
• LaserJet 4345XM
• LaserJet 4345XMFP
• LaserJet 4345XMMFP
• LaserJet 4345XS
• LaserJet 4345XSMFP
• LaserJet M4345MFP
• LaserJet M4345X
• LaserJet M4345XM
• LaserJet M4345XMFP
• LaserJet M4345XMMFP
• LaserJet M4345XS
• LaserJet M4345XSMFP

Frequently Asked Questions

Which toner cartridge does the LaserJet M4345 use?

The LaserJet M4345 uses the Q5945A toner cartridge. Confirm the code printed on your current cartridge matches before ordering a replacement.

Why is my LaserJet M4345 printing blank pages?

Blank pages from the LaserJet M4345 usually mean the cartridge is empty or the protective seal was never removed from a new one. Check the supply level, and if you just installed a cartridge in the LaserJet M4345, remove it and pull the sealing tape completely.

Should I buy genuine or compatible toner for the LaserJet M4345?

Both work in the LaserJet M4345: genuine cartridges come from HP, while compatible cartridges are third-party versions built for the same printer. Many LaserJet M4345 owners choose based on budget and print volume without issue.