SKU:

HP-M4555FSKM

Printer Brand:

Hewlett Packard

OEM Number:

CE390A

Ink Color:

Black

Page Yield:

10,000 Pages

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

How should a spare CE390A be stored for the M4555FSKM?

Sealed, flat, and boring. Keep the cartridge in its unopened bag and box, lying flat on a shelf in a dry room at normal office temperature. Sealed storage is what preserves the toner: the powder stays loose and evenly distributed, and the drum stays dark and protected until the day the bag is opened.

What storage conditions actually harm a cartridge?

Heat, damp and sunlight. A shelf above a radiator, a garage that swings between freezing and hot, or a windowsill in direct sun will all age a cartridge before it prints a page. The attic-and-basement rule applies: if you would not store paper records there, do not store the 90A there either.

Should the cartridge stand upright or lie flat?

Flat, in the orientation it shipped. Standing a cartridge on end for months lets toner settle hard against one side, and the first pages after fitting can come out uneven until it redistributes. Flat storage plus a gentle rock before installation keeps density consistent from page one.

We keep two spares — does order matter?

Yes: rotate them. Fit the older cartridge first and let the newer one wait. First-in, first-out rotation keeps any single unit from sitting sealed for years, and a note of the delivery month on the box end makes the order obvious to whoever stocks the shelf.

How long is too long to keep one?

Stored sealed and flat in office conditions, a cartridge keeps well beyond a year. The practical limit is not a printed expiry but the storage itself: check stored units once in a while for a torn bag or a crushed corner, and prioritise any box that looks compromised.

Is a stored spare still covered if it fails on fitting?

Yes — cover runs from purchase, not from the shelf. The cartridge carries a 1-year warranty and 1-year free returns, so buy the spare when it suits your budget cycle. Support is available Monday through Friday, 9 AM to 5 PM CST, and the shipping & returns page sets out delivery and returns.

About This Cartridge for the LaserJet M4555FSKM

For the LaserJet M4555fskm — the fully loaded fax, scan and copy configuration of the M4555 line — this is the single black CE390A, also sold as the 90A, at $48.70 with a 10,000-page rating. Because a multifunction flagship rarely sits in a room of its own, this page concentrates on the shelf: how the spare waits, and how to keep it ready. We ship from warehouses in IL, PA, GA and CA; the wider range is under HP.