HP Original 42A Black Toner Cartridge Q5942A - Reliable High Yield

In this review the HP Original 42A Black Toner Cartridge is assessed for office users who need dependable, highvolume black printing. The bottom line: this cartridge is best for departments and small businesses using compatible LaserJet models because it delivers consistent print quality and a very high yield that reduces interruptions. Reviewers who value OEM reliability and fewer service hassles will appreciate the cartridge's tamperresistant design and eco efforts, while casual home users may find the yield and cost geared more toward heavier volume printing.

Key Features

• Original HP engineering: Manufactured to work with HP LaserJet printers for consistent print quality and reduced risk of toner leaks or premature failures.
• High page yield: The cartridge yields approximately 10,000 pages, which minimizes replacement frequency in busy offices.
• Wide compatibility: Works with a range of LaserJet 4240, 4250 and 4350 series models, simplifying supply management for mixed fleets.
• Security and integrity: Tamperresistant chips, firmware and packaging help protect printers from malicious code and maintain data integrity.
• Environmental considerations: Contains recycled content and meets voluntary HP emissions testing for better office air quality.

Who It's For

The HP 42A is aimed at offices and print centers that run high monthly volumes and need dependable, consistent black output without frequent cartridge changes. IT managers who prioritize OEM parts to reduce troubleshooting and protect printer fleet security will find this cartridge a sensible choice.

It is less suitable for light home users or those with very tight upfront budgets who prioritize lowest possible percartridge cost; those buyers may prefer loweryield or nonOEM alternatives if occasional compatibility or warranty concerns are acceptable.

Pros & Cons

Pros

• Reliable OEM print quality that customers describe as "super HP quality" for text and standard office graphics.
• Excellent value for highvolume users due to the approximately 10,000 page yield.
• Reduces downtime and support calls thanks to designed compatibility and reduced risk of leaks.
• Built with recycled content and emissions testing to address environmental and air quality concerns.

Cons

• Upfront cost and high yield are optimized for heavy use, so occasional home users may not realize the best value.

Specifications

Brand	HP
Model / Code	42A (Q5942A)
Color	Black
Compatible printers	HP LaserJet 4240, 4250 and 4350 series models
Estimated yield	Approx. 10,000 pages
Box contents	1 new Original HP 42A Black Toner Cartridge
Special features	Tamperresistant chips; recycled content; emissions testing

Our Verdict

For offices running LaserJet 4240, 4250 or 4350 series printers, the HP 42A is a strong, practical choice because it pairs reliable OEM print quality with a high page yield that lowers interruptions and total operating hassle. It represents good value for medium to high print volumes and for IT teams who prefer original cartridges to avoid leaks and compatibility problems.

Frequently Asked Questions

Which printers work with this cartridge?
The cartridge is compatible with HP LaserJet 4240, 4250 and 4350 series models including select n, tn and dtn variants.

How many pages will this cartridge print?
HP specifies an approximate yield of 10,000 pages under typical office printing conditions.

Does this cartridge include any recycled content or security features?
Yes; Original HP 42A cartridges contain recycled content and include tamperresistant chips and firmware to help protect printer integrity.