HP CE390A Toner Cartridges

When the printer is a shared office workhorse, the toner needs to keep up. The HP CE390A — the HP 90A — is a black cartridge built for the LaserJet Enterprise 600 series and the M4555 MFP line: machines like the Enterprise 600 M601dn, the M602n, the M603dn, and the Enterprise M4555f MFP. For high-volume sites there is also the HP 90X (CE390X), the high-yield version that stretches further between replacements. These are departmental-class mono printers, so a single cartridge change can wait much longer than on a desktop model. Before ordering, confirm your machine belongs to the 90A/90X family using the printer list below. We stock genuine OEM HP cartridges for buyers who want factory-original supplies, plus compatible 90A and 90X cartridges that deliver the same sharp black text at a friendlier price.

Works with these 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 M4555FSKM
• LaserJet M4555FSKM MFP
• LaserJet M4555H
• LaserJet M4555H MFP
• LaserJet M4555f MFP
• LaserJet M601
• LaserJet M601DN
• LaserJet M601N
• LaserJet M602
• LaserJet M602DN
• LaserJet M602N
• LaserJet M602X
• LaserJet M603
• LaserJet M603DN
• LaserJet M603HX
• LaserJet M603N
• LaserJet M603XH
• Laserjet M602dn

Frequently Asked Questions

Which printers take the 90A?

The 90A/90X family serves the LaserJet Enterprise 600 series (M601, M602, M603) and the Enterprise M4555 MFP line. The fastest check: open your printer's supplies status or look at the label on your current cartridge — if it reads 90A, 90X, CE390A, or CE390X, you are in the right place. The full model list above covers every variant.

OEM or compatible for a shared office printer?

Both work in the same machines. OEM HP cartridges suit offices with strict supply policies or managed-print contracts that require original consumables. Compatible 90A/90X cartridges suit offices watching the budget — they print the same sharp black text at a lower cost per page. Many offices mix: OEM for client-facing documents, compatible for everyday internal printing.

90A vs 90X — which should our office choose?

The 90X is the high-yield version: same cartridge, more toner, fewer replacements. For a shared departmental printer, the 90X almost always wins on convenience and cost per page. The standard 90A makes sense only for lightly used machines where a cartridge might sit for months — toner is best used fresh.