LaserJet 5SI NX

HP positioned the 5Si NX as the network-ready flagship of the 5Si line — the full-featured A3 workgroup laser for departments that printed around the clock in the late 1990s. Its reputation for durability is why so many are still in service.

Feed it the HP 09A cartridge (C3909A). Compatible 09A toner offers serious savings at volume; genuine OEM C3909A keeps everything factory-original.

Toner Cartridges for LaserJet 5SI NX

This printer works with the following toner cartridges:

HP C3909A

More HP Printers

Frequently Asked Questions

Can I use a compatible HP 09A cartridge in the HP LaserJet 5SI NX?

You can. A compatible HP 09A cartridge matches the OEM C3909A specification for the HP LaserJet 5SI NX, so the printer treats it like the original. Many HP LaserJet 5SI NX owners use compatibles for everyday documents and keep OEM for final drafts.

What should I do when the HP LaserJet 5SI NX shows a toner-low warning?

Treat the HP LaserJet 5SI NX's toner-low warning as your cue to have a spare C3909A ready. Redistributing the HP 09A cartridge buys time, but once pages fade on the HP LaserJet 5SI NX, swap in the new cartridge.

Where can I still buy toner for the HP LaserJet 5SI NX?

The HP 09A cartridge for the HP LaserJet 5SI NX is still widely stocked — including right here — in both compatible and genuine OEM C3909A versions. Because the HP LaserJet 5SI NX shares its cartridge with a large printer family, supplies remain easy to source.