LaserJet CP4005n
The N in the name is the point: the LaserJet CP4005n is a mid-2000s color single-function printer with built-in networking, made to be shared by a small office. It shares the HP 642A cartridges with its sibling models — CB400A black, CB401A cyan, CB402A yellow, and the CB403A magenta listed on this page. Running low on one color never forces you to change the others.
A networked printer in a small office is a shared resource, and shared resources get used hard by people who never think about toner at all — until their printout comes out missing a color. The CP4005n copes by tracking each cartridge separately and saying exactly which slot is low. Keep that message in mind and supplies become a one-line task: read the flagged color, order its cartridge, swap it in.
Toner Cartridges for LaserJet CP4005n
| Cartridge | Color | Page Yield |
|---|---|---|
| CB403A Magenta | Magenta | See product page |
Which cartridge should you buy?
Buy the flagged color and nothing else. If the CP4005n is asking for magenta, the compatible CB403A on this page is the cartridge; the black, cyan and yellow members of the 642A set are not listed here, and a fuller cartridge pulled early is money thrown away. Offices that print color daily can justify a sealed spare of the fast-moving colors, but magenta usually moves slowly enough that ordering on the low warning is fine. The cartridge is covered by a 1-year warranty and 1-year returns.
Chip, toner and everyday use
Because several people share this printer, the chip-based level reporting matters: the CP4005n tells you which color is low long before pages start to fade, as long as someone glances at the status. A fresh cartridge goes in with its tape removed and seats with a click, after which the printer calibrates itself. If a color looks weak while toner remains, remove that cartridge and rock it gently to redistribute the toner — and keep spare cartridges sealed until the day they are installed.
Frequently Asked Questions
Can the LaserJet CP4005n use compatible HP 642A cartridges?
Yes. A compatible cartridge built to the 642A specification installs exactly like the original — just match the codes CB400A, CB401A, CB402A and CB403A so each color lands in its right slot. This page lists the magenta CB403A.
What do I need to print from several computers to the LaserJet CP4005n?
Very little: the printer is network-ready, so connect it to your router or switch with an Ethernet cable and install the driver on each computer. Every workstation then prints straight to it, no print server required.
How often will I replace toner in the LaserJet CP4005n?
There is no fixed schedule — each cartridge depletes at its own rate depending on what you print. On typical office documents the black usually runs out first, while the colors can last considerably longer.
More printers that use the same cartridges
The 642A family is shared across these models:
Color LaserJet CP4005, Color LaserJet CP4005DN, Color LaserJet CP4005N, HP 642A, LaserJet CP4005, LaserJet CP4005dn