Cool Toner 42X Q5942 Black Toner Cartridge

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Product guide

Cool Toner 42X Q5942 Black Toner Cartridge

Cool Toner 42X Q5942 is a compatible black toner cartridge listed for select HP LaserJet models. Its stated high-yield capacity may suit frequent monochrome printing, but customer feedback is mixed on print consistency, compatibility and leakage.

At a glance

Listed as a compatible replacement for select HP LaserJet 4200, 4250, 4300 and 4350 series printers, plus 4345MFP.
The listing calls it high yield and states a 20,000-page yield based on 5% coverage on Letter/A4 paper.
A single black toner cartridge is identified in the package contents.

Price

$52.00Save 20%

Reference price: ~~$65.29~~

Price checked: Nov 14, 2026

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Often bought together

Q5942A 42A Black Toner Cartridge 1-Pack for HP 42X Q5942X Q1338A Q1338X | Compatible for HP 38A 38X Q1338A LaserJet 4250 4200 4350 4300 4250N 4240 4350N 4250TN 4250DTN 4350DTN 4350TN Printer Ink

$62.99

Pros and cons

Pros

The listed yield and compatibility range make it a possible option for higher-volume monochrome printing on a specifically supported printer.
Customer feedback includes reports of good value and crisp output, though experiences vary.

Cons

Customer feedback reports uneven printing, streaking, smudging on shiny paper and leakage.
Reported compatibility is mixed, including a customer report of a failure with an HP4350n.

Technical specifications

10 specifications

Identity
Brand	Cool Toner
Model	42X Q5942
Cartridge type	Compatible
Color	Black

Yield and use
Page yield	20000
Yield basis	2,0000 Pages (Black) Based on 5% coverage (Letter/A4)
Print output	Monochrome
Print media	Paper (plain)
Printer function	Print Only

Dimensions and installation
Weight listed	5 pounds

What to know before buying

Listing details to confirm

Listing details are inconsistent: it identifies the cartridge as 42X Q5942X and also references 42A Q5942A, describes the yield as both 20000 and “2,0000 Pages,” and includes conflicting, unrelated Canon 119II use text. Confirm the exact cartridge variant, printer model and yield before buying. The manufacturer lists a lifetime warranty, but coverage details are not provided.

What’s in the box

Included

1 toner cartridge

Who is it for?

A good fit for

Owners of a listed compatible HP LaserJet model who want a single black replacement cartridge.
Buyers considering a high-yield alternative for routine monochrome printing on plain paper.

Less suited to

Anyone who needs dependable performance on glossy or shiny paper, given customer reports of smudging.
Buyers who need assured compatibility or consistent print quality without first confirming the exact printer and cartridge variant.

Cool Toner 42X Q5942 Black Toner Cartridge · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 420 ratings

5 stars65%65%
4 stars12%12%
3 stars6%6%
2 stars3%3%
1 star14%14%

Customer feedback reports good value and, in some cases, crisp output, but print quality and durability experiences vary. Reports also include uneven printing, streaking, shiny-paper smudging and leakage, along with mixed compatibility, including a stated HP4350n issue. For buyers relying on the listed high yield for frequent printing, those concerns make printer-model confirmation and tolerance for variable results important. The aggregate rating is generally positive, but its distribution includes a notable one-star share and does not explain the reasons for individual ratings.

Positive themes

Some customers describe the cartridge as good value and say its print is crisp.

Negative themes

Customer feedback includes reports of smudging on shiny paper, streaking and leakage.

Mixed feedback

Print quality, durability and compatibility receive mixed feedback.

Frequently asked questions

Which printers does the listing say this cartridge fits?

It lists select HP LaserJet 4200, 4250, 4300 and 4350 models, as well as 4345MFP. Confirm your exact printer and cartridge number because the listing mixes 42X and 42A references.

What yield does the listing claim?

It states a 20,000-page yield based on 5% coverage on Letter/A4 paper, but elsewhere formats the figure as “2,0000 Pages.” Treat the yield as a listing claim and clarify the exact cartridge variant before purchase.

What comes in the package?

The contents list specifies one toner cartridge.

What do customers report about print results?

Feedback is mixed. Some describe crisp output, while others report uneven printing, streaks, smudging on shiny paper or leakage.