Which toner fits the HP LaserJet Pro M203dw?

One drum for fourteen toners

The ratio is worth stating, because it decides what not to buy: 23,000 pages for the drum against 1,600 for a 30A toner, so more than fourteen cartridges before the cylinder reaches the end of its life. With 30X cartridges it falls to seven — but that still belongs to an order of magnitude counted in years.

In other words: do not buy the drum along with the toner. On a machine for which HP recommends 250 to 2,500 pages a month, the drum easily covers the printer's whole working life, and many M203dw units will go without theirs ever having been replaced.

It is changed when the page calls for it, not on a fixed date: repeating marks — dots, lines, veiling that come back at the same interval on every sheet — point to the cylinder. Pale areas that improve after shaking the cartridge point to the toner.

30A or 30X?

Both occupy the same slot. At 250 pages a month, a 30A lasts more than six months and the 30X brings nothing but dormant stock. At the recommended ceiling of 2,500 pages, the 30A empties in three weeks and the 30X becomes the sensible choice, with close to six weeks of autonomy.

What the M203dw has that the M203dn does not

Wi-Fi, and that is the only difference: both print at 28 pages per minute, with automatic duplex, a 260-sheet tray and a single indicator light for a display. The M203dn makes do with Ethernet and USB. The consumables are strictly identical.

The lack of a screen has a practical consequence: the toner level can be read only from a workstation with the HP software installed, or from the configuration page printed at the panel.