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HP LaserJet 4240n Supplies

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Toner Cartridges, Maintenance Kits and Parts

HP LaserJet 4240n
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10 Items

Frequently Asked Questions

The LaserJet 4240n uses HP Q5942A (HP 42A), XER 106R2338, TRO 02-81135-001 (TRO 0281135001) toner cartridges. HP Q5942A yields 10000 pages; XER 106R2338 yields 10000 pages; TRO 02-81135-001 yields 12000 pages.

HP Q5942A (HP 42A) prints 10000 pages, TRO 02-81135-001 (TRO 0281135001) prints 12000 pages.

The TRO 02-81135-001 cartridge has an approximate yield of 12000 pages.

Yes — MICR (magnetic) toner is available: TRO 02-81135-001 (TRO 0281135001).

Yes — the replacement fuser for the LaserJet 4240n is: HP RM1-1082-000 (HP RM11082000).

The LaserJet 4240n uses these maintenance parts: HP Q5421A.

Seeing "Supply Problem" on your LaserJet 4240n? Before replacing anything, try a quick reset: power down for half a minute, remove and firmly reinsert the cartridge, and wipe the chip contacts free of dust with a dry, lint-free wipe. When the warning keeps coming back after that, swap in a new TRO 02-81135-001 or contact us.