LaserJet M603N
The HP LaserJet M603N is exactly what its early-2010s badge suggests: a mono single-function printer made for everyday office document printing. If your workload is everyday office document printing, the LaserJet M603N is the kind of printer that just keeps showing up.
Supplies for the LaserJet M603N are straightforward: it takes the HP 90A/90X family (CE390A), a cartridge line shared across 40 sibling models. The LaserJet M603N also accepts the high-yield CE390X for busier stretches, alongside the standard CE390A for everyday office document printing.
Toner Cartridges for LaserJet M603N
This printer works with the following toner cartridges:
- HP CE390A
- HP CE390X
More HP Printers
- LaserJet 600
- LaserJet Enterprise 600
- LaserJet Enterprise 600 M601
- LaserJet Enterprise 600 M601DN
- LaserJet Enterprise 600 M601N
- LaserJet Enterprise 600 M602
- LaserJet Enterprise 600 M602DN
- LaserJet Enterprise 600 M602N
- LaserJet Enterprise 600 M602X
- LaserJet Enterprise 600 M603
- LaserJet Enterprise 600 M603DN
- LaserJet Enterprise 600 M603N
- LaserJet Enterprise 600 M603XH
- LaserJet Enterprise M4555
- LaserJet Enterprise M4555 MFP
- LaserJet Enterprise M4555F
- LaserJet Enterprise M4555F MFP
- LaserJet Enterprise M4555FSKM
- LaserJet Enterprise M4555FSKM MFP
- LaserJet Enterprise M4555H
- LaserJet Enterprise M4555H MFP
- LaserJet M4555
- LaserJet M4555 MFP
- LaserJet M4555F
- LaserJet M4555f MFP
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- LaserJet M4555FSKM MFP
- LaserJet M4555H
- LaserJet M4555H MFP
- LaserJet M601
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- LaserJet M602
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- LaserJet M602X
- LaserJet M603
- LaserJet M603DN
- LaserJet M603HX
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Frequently Asked Questions
Can I use any HP toner cartridge in the LaserJet M603N?
No — the LaserJet M603N only accepts CE390A, CE390X. Toner cartridges are keyed to specific printer families, so one made for another HP model generally won't fit or be recognized. Stick to the codes listed for your LaserJet M603N.
When should I replace the toner in my LaserJet M603N?
Swap the CE390A when prints from the LaserJet M603N fade, streak, or the printer reports the cartridge as empty. "Toner low" warnings arrive earlier and still leave room to print, so keep a spare CE390A ready. Change it when quality visibly drops, not at the first warning.
Where do I get drivers and firmware for the LaserJet M603N?
Download them from HP's official support site — search for the LaserJet M603N and choose your operating system. Current drivers fix printing, scanning, and connectivity problems, so keep them updated. Skip third-party driver sites, which often bundle unwanted software.