HP Color LaserJet 5500HDN Toner Cartridges

COLOR LASERJET 5500HDN

High-duty construction made the HP Color LaserJet 5500HDN the endurance wide-format printer of its generation, the one departments printing A3 color constantly depended on. HP 645A toner powers the machine: C9730A black with cyan C9731A, yellow C9732A and magenta C9733A. Compatible options for the whole family are stocked here.

The HDN badge meant the heavy-duty build of the range: a machine expected to live on a print-room floor and produce A3 color all day, networked and duplexing as standard duties. Owners kept these running for years, and the ones still in service are the ones that were never allowed to sit idle for want of a cartridge.

Toner Cartridges for COLOR LASERJET 5500HDN

645A 4 Color Set (C9730A, C9731A, C9732A, C9733A) — Black, cyan, yellow and magenta; yield: see product page
C9730A — Black; yield: see product page
C9731A — Cyan; yield: see product page
C9732A — Yellow; yield: see product page
C9733A — Magenta; yield: see product page
4 Color Set (C9730A, C9731A, C9732A, C9733A) — Black, cyan, yellow and magenta; yield: see product page
C9731A — Cyan; yield: see product page
645A 3 Color Set (C9731A, C9732A, C9733A) — Cyan, yellow and magenta; yield: see product page
642A (C9733A) — Magenta; yield: see product page

Because the family shares one shelf, listings named for sibling models appear here too; each link below is the listing it describes:

Which cartridge should you buy?

Endurance hardware deserves an endurance supply plan. On a machine that prints color constantly, all four cartridges age together faster than on any occasional-use printer, which makes the 4 Color Set the natural scheduled purchase — one planned swap resets the family before quality fades. Between set changes, the singles C9731A, C9732A and C9733A cover the color that a heavy graphics job burns first, and the multi-black C9730A listings cover the report work that still makes up much of the volume. The 3 Color Set suits a mid-life refresh of the colors when black is already in reserve. Buy ahead of the panel warnings; on this model a stopped printer idles a whole department.

Chip, toner and everyday use

A high-duty machine cycles cartridges often, so build the habit: confirm the code against the 645A family, seat the cartridge until it locks, and let the printer recognize it before sending work. Cartridges stored for months benefit from a slow end-to-end rock to redistribute settled toner. Keep spares sealed and flat in a cool spot — print rooms run warm, and toner prefers the cupboard to the top of the machine. When output starts to fade mid-run, swapping in the reserve beats coaxing the last pages out of an empty cartridge on A3 stock.

Frequently Asked Questions

Which toner cartridges does the Color LaserJet 5500HDN use?

The HP 645A family — black C9730A, cyan C9731A, yellow C9732A, magenta C9733A — shared with the entire 5500/5550 range.

How should a high-duty machine be stocked?

Keep a full reserve: a 4 Color Set for planned refreshes plus a multi-black C9730A listing for the report volume that drains black between set changes.

My prints are fading on one side — is it the cartridge?

Often it is toner settling or running low. Rock the cartridge gently end to end to redistribute the powder; if the fade returns quickly, that color is near empty and its single is the fix.