Law firms, SACCO back offices, county revenue desks, and school bursars bought the M404 and M428 because they print up to 38 A4 pages per minute. Those machines carry heavy loads during court filings, member statement runs, and exam season. A leaking refill at that moment means smudged affidavits and a queue at the counter. The HP 59A Black Toner Cartridge keeps output sharp with factory-filled JetIntelligence toner and a genuine HP chip. At KSh 19,000 for 3,000 pages, each page costs about KSh 6.33. That single figure makes quarterly supply budgets simple to plan and approve.

Unlike other electronics retailers in Kenya that slip refilled 59A units into original stock, Mascom International sells only sealed HP boxes with the security label untouched. At Mascom International, we're seeing more advocates' offices return to originals after cloned chips triggered error messages on M428 firmware. Lawyers filing at Milimani Law Courts report that the HP 59A Black Toner Cartridge produces crisp, dense text through long duplex runs. Offices printing heavily can step up to the 59X, rated at 10,000 pages. Walk in to confirm your printer model before buying the HP 59A Black Toner Cartridge, or order with pay-on-arrival delivery to all 47 counties.

It fits seven HP LaserJet models: the Pro M404n, M404dn, and M404dw, the Pro MFP M428dw, M428fdn, and M428fdw, and the Pro M304a. HP also lists the Enterprise M406dn and MFP M430f, which are less common in Kenya. It will not fit the older M402 or M426, which use the 26A cartridge. Check the model name on the front panel or the configuration report. Send a photo of your printer label on WhatsApp and our team confirms the fit before you pay.

HP rates it at about 3,000 pages under ISO/IEC 19752, which assumes toner covers 5% of each page. Plain typed letters, invoices, and pleadings land close to that figure. Letterheads, tables, stamps, and scanned ID copies use more toner and cut the count. A SACCO printing 120 pages a day, six days a week, would finish one cartridge in about four weeks. A small advocates' office printing 50 pages daily would stretch the same cartridge across roughly ten weeks.

Buy the 59A if you print under 2,000 pages a month or prefer smaller, more frequent purchases. The 59X, part number CF259X, is rated at about 10,000 pages, more than three times the 59A figure. It fits the same printers and usually lowers the cost per page for busy offices. The 59X box is also slightly larger and heavier, at 1.35 kg against 1.07 kg. Ask us for current 59X pricing and we will compare per-page costs for your monthly volume.

Toner and drum together cost about KSh 6.33 per page, based on KSh 19,000 divided by 3,000 pages. Because the drum is built in, no separate imaging unit adds to that figure later. A county office printing 1,500 pages a month would use one cartridge every two months, spending about KSh 9,500 monthly. Paper and electricity are the only other running costs. That predictable figure fits neatly into a standard LPO or a quarterly budget line.

Start with the box. The HP security label shifts colour when tilted, and its serial or QR code can be checked on HP's anti-counterfeit site. Factory tape should be unbroken, and the cartridge should sit inside a sealed protective bag. Refills often show scratched plastic, loose toner dust, or a swapped chip. The M404 and M428 run HP firmware that can reject cloned chips after an update. Mascom International lets you inspect every seal at our Kimathi Street counter before paying.

JetIntelligence is HP's toner and cartridge technology built into the 59A. Its low-melt toner fuses at a lower temperature, so the printer draws less power per page. That helps offices watching KPLC bills or running printers from inverters and generators during outages. Print Gauge technology tracks usage and warns you before output fades, giving time to reorder. Automatic seal removal means there is no pull tape, so a receptionist can swap the cartridge cleanly in under a minute.

For most offices, yes. A refill may cost less upfront, but it carries no verified page rating and often streaks, leaks, or triggers chip errors midway. A reprinted 40-page tender document or a rejected court filing costs more in staff time than the price gap. The original cartridge brings a fresh drum, a published 3,000-page yield, and HP's defect warranty. Buyers throughout Kenya tell us one leaking refill left toner inside the printer and added a service call to the bill.

Anyone running an M404, M428, or M304a who needs clean, dependable black output. That covers advocates preparing pleadings, SACCO officers printing member statements, school bursars issuing fee structures, and CPAs handling KRA submissions. The M428fdn and M428fdw also scan and fax, so the cartridge serves mixed front-office work. Offices printing more than 3,000 pages every month should price the 59X first, because its cost per page usually lands lower at that volume.

Three ways to order:

Every cartridge comes with the 6-month warranty detailed above.

Law firms, SACCOs, and county offices across Kenya rely on Mascom International for sealed original supplies, verified yield figures, and after-sales support from a store they can visit.