E-Z Ink Toner Cartridges, 78A

For owners of compatible HP LaserJet Pro and LaserJet MFP printers, this four-cartridge pack is aimed at keeping a black-and-white printer supplied without buying cartridges one at a time. It uses the 78A CE278A format, and the listing names several P-series and M1536-series models as compatible.

The key catch is printer eligibility: these cartridges are not compatible with HP+ enrolled printers, which require Original HP cartridges. Check both your printer model and HP+ status before choosing a compatible replacement.

Size & fit

The stated compatibility includes the HP LaserJet Pro P1606dn, P1560, P1566, and P1606, plus the M1536dnf, M1536, M1537dnf, M1538dnf, and M1539dn. The pack contains four black cartridges for the 78A CE278A format. That makes it relevant for a household or small office that prints frequently enough to want replacements on hand, it is not a fit for every printer that happens to carry the HP name.

If your machine is an HP+ enrolled printer, this compatible pack is ruled out by the listing. For other models, match the exact printer number rather than relying on a similar-looking name. It’s a great fit if your printer is on the compatibility list and you want several black replacements in one purchase.

Pros

• Four black cartridges are included, so you can keep spares ready instead of ordering after the current cartridge runs out.
• The listing gives a yield of 2,100 pages per cartridge, based on Letter paper at 5% coverage. Actual page counts can vary with how much of each page is printed.
• The stated compatibility spans several LaserJet Pro and M1536-series models, which is useful if you already know your printer’s exact model number.

A practical use case: when a small office prints routine forms and correspondence, having another cartridge ready can make a low-toner warning less disruptive. The tradeoff compared with sticking to original cartridges is that this is a compatible replacement, and HP+ printers are explicitly excluded. The listing describes crisp, clear output, but without having tried it, print quality should be treated as a stated claim rather than a guarantee.

Spec sheet

• Name: E-Z Ink 78A CE278A compatible toner cartridges
• Type: Black toner cartridge
• Format: Four-cartridge pack
• Page yield: 2,100 pages per cartridge at 5% coverage on Letter paper
• Compatibility: Listed HP LaserJet Pro P1606dn, P1560, P1566, P1606, and M1536-series printers
• Package contents: Four black cartridges and a user guide
• Exclusion: Not compatible with HP+ enrolled printers

When it makes sense

This pack makes sense when you have a listed non-HP+ printer, use black toner regularly, and prefer to keep replacements ready. The stated yield gives a point of reference, but pages with dense graphics or heavy text coverage may use toner faster than the listing’s 5% test condition suggests. If you print only occasionally, a multi-cartridge pack may leave you storing spares for longer, if you need an original cartridge for an HP+ printer, this is not the right choice. It may not suit you if you cannot confirm the exact model or your printer is enrolled in HP+.