HP 938 Black Ink Cartridge (part number 4S6X8PE) is now in stock at Mascom International for KSh 6,500, rated by HP at about 1,250 A4 pages from 27 ml of original ink. Every unit is brand new and sealed, with a pack date of November 2027. Pick up the HP 938 Black Ink Cartridge at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, or order it for delivery. The HP 938 Black Ink Cartridge fits the HP OfficeJet Pro 9110, 9120, 9130, 9720 and 9730 printers found in offices, schools and print bureaus across Kenya.
Accountants, lawyers, school bursars and busy front offices burn through black ink faster than any colour. A single empty black slot can stop an OfficeJet Pro in the middle of KRA eTIMS invoices, tender bids, or end-of-term report cards. Cheap clone cartridges often fail the printer's chip check, leaving staff stuck with a machine that refuses to print. The HP 938 Black Ink Cartridge removes that risk because it is the exact original HP part the printer expects. At about KSh 5.20 per page, the HP 938 Black Ink Cartridge also keeps text-heavy work predictable to budget.
Unlike other electronics retailers in Kenya that sell grey-market ink with no clear dating, Mascom International states the pack date on every cartridge we list. At Mascom International, we're seeing more offices in Upper Hill and Westlands switch to wide-format OfficeJet Pro 9730 machines for A3 drawings and spreadsheets. Customers across Nairobi report fewer streaks and fewer failed prints after moving back from refilled cartridges to sealed originals. Walk in to compare packs over the counter, or order by phone and pay only when the cartridge reaches you, anywhere in all 47 counties.
Common Questions About the HP 938 Black Ink Cartridge
Which printers accept the HP 938 Black Ink Cartridge?
It fits the HP OfficeJet Pro 9110, 9120, 9130, 9720 and 9730 series, including the b and e versions sold in Kenya such as the 9120b, 9130b, 9125e and 9135e. The 9720 and 9730 are the wide-format models that print up to A3. If your printer model starts with OfficeJet Pro 91 or 97, this cartridge is almost certainly the right black. Send us a photo of the printer label on WhatsApp and we will confirm before you pay.
How many pages does one black cartridge actually print?
HP rates it at about 1,250 A4 pages using the ISO standard test, which assumes roughly 5% page coverage. A typical one-page letter or invoice sits close to that figure. Dense spreadsheets, bold headers and scanned copies use more ink, so expect 800 to 1,000 pages on heavy documents. Printing in draft mode for internal drafts stretches the cartridge further. Most small offices printing 60 pages a day will replace it roughly every three to four weeks.
What does the date on the pack mean?
The November 2027 date is the pack date HP prints on the box, and it tells you how long the sealed cartridge stays within HP's recommended window. HP's own warranty runs until the ink runs out or that printed date arrives, whichever comes first. With more than a year to go, you can buy a spare today and keep it on the shelf. Store it sealed at 0 to 40°C, away from direct sun.
Why pay KSh 6,500 when refilled cartridges cost less?
The upfront saving on a refill often disappears in wasted paper, clogged nozzles and callouts. HP printers with dynamic security can reject cartridges using non-HP chips, and firmware updates have blocked clones overnight. Refilled black ink also tends to print patchy, grey text and can smear under a highlighter. At KSh 5.20 per page from an original, you get consistent, dark text that a client or a court registry will accept without questions.
Is this cartridge suitable for printing legal and financial documents?
Yes, and that is where black ink matters most. Contracts, affidavits and audited accounts need dense, even text that photocopies cleanly and scans without broken letters. Lawyers filing at Milimani Law Courts and CPAs preparing KRA submissions tell us that crisp output saves reprints late in the day. The HP 938 prints black text at the full resolution your OfficeJet Pro supports, so small print in footnotes and tables stays readable.
Can I run the printer with only the black cartridge installed?
No. The OfficeJet Pro 9100 and 9700 series need all four cartridges seated before they will print, even for black-only jobs. If a colour cartridge is empty or missing, the printer stops and shows a cartridge error. This is why many of our office customers keep a full set of four on hand. The 938 cyan, magenta and yellow cartridges are stocked at Mascom International at KSh 4,500 each.
How does the standard 938 compare with the 938e EvoMore black?
The standard HP 938 black yields about 1,250 pages, while the 938e EvoMore black is rated at roughly 2,500 pages. EvoMore cartridges suit offices printing several hundred pages every day. For most small firms, schools and home offices, the standard cartridge is easier on cash flow and still lasts weeks. Ask our team about current EvoMore availability if your monthly volume regularly passes 1,500 pages.
How do I install the HP 938 Black Ink Cartridge?
Switch on the printer, open the ink access door and wait for the carriage to stop. Press the front of the old black cartridge to release it, then pull it out. Unwrap the new cartridge, hold it by the sides without touching the copper contacts, and push it into the black slot until it clicks. Close the door and let the printer finish its short setup. The whole job takes under two minutes.
How do I tell a genuine HP 938 from a fake one?
Check three things before you pay. The pack should carry HP's security label with a colour-shifting seal and a scannable code, the part number should read 4S6X8PE, and the cartridge should be vacuum-sealed inside. Once installed, a genuine cartridge shows normal ink levels, while a counterfeit often triggers a used or non-HP warning. Mascom International stocks only sealed original HP packs, and you can open the delivery box and check the seal before handing over payment.
Technical Specifications
Cartridge Identity and Core Function
- Model name is HP 938 Black Original Ink Cartridge, sold under HP part number 4S6X8PE for the EMEA region.
- Original HP thermal inkjet cartridge, so the printer recognises the chip and reports accurate ink levels.
- Black ink produces text, lines and grayscale on every document your OfficeJet Pro prints daily.
- The US-market equivalent is sold as the 936, so check the number carefully when buying abroad.
- Standard capacity tier, sitting below the 938e EvoMore cartridge for lower upfront cost per purchase.
Yield and Ink Volume
- HP rates average yield at about 1,250 A4 pages under the ISO test method for black printing.
- Ink volume is 27 ml, which HP loads for predictable output across long runs of text documents.
- Cost per page works out near KSh 5.20 at the Mascom International price of KSh 6,500.
- Heavy coverage like bold tables or scanned pages cuts yield, so plan on 800 to 1,000 pages.
- Draft mode in the HP driver reduces ink use noticeably on internal drafts and checklists.
Printer Compatibility
- Fits the HP OfficeJet Pro 9110 series, including the 9110b model sold through Kenyan distributors.
- Fits the HP OfficeJet Pro 9120 and 9130 series, covering the 9120b, 9125e, 9130b and 9135e.
- Fits the HP OfficeJet Pro 9720 and 9730 wide-format series that print up to A3 paper.
- Does not fit the older OfficeJet Pro 8000 series, which use the 950 and 953 cartridge families.
- All four colour slots must hold cartridges before the printer will run any print job.
Physical Build and Dimensions
- Cartridge measures 114.8 x 23.9 x 100.1 mm, slim enough to store several in a desk drawer.
- Weight is about 0.04 kg, so couriers can deliver spares cheaply across Kenya alongside other orders.
- Copper contact strip on the rear carries the chip data that the printer reads on install.
- Front release tab lets you remove the empty cartridge by pressing it, with no tools and no ink on your fingers.
- Cartridge arrives inside sealed HP packaging that protects the ink outlet from dust and air exposure.
Storage and Operating Conditions
- HP specifies an operating temperature of 15 to 35°C, which covers Nairobi offices year round.
- Storage range is 0 to 40°C, so keep spares out of parked cars and sunny windowsills.
- Relative humidity tolerance is 5 to 80%, suitable for most Kenyan offices including coastal towns.
- Keep the cartridge sealed until you install it to protect the nozzles from drying out early.
- The printed November 2027 pack date gives over a year of shelf life for stocked spares.
Running Cost and Office Planning
- An office printing 60 pages a day will typically use one cartridge every three to four weeks.
- A full four-cartridge 938 set costs KSh 20,000 at Mascom International across black and three colours.
- The HP companion app on your phone shows remaining ink levels, so you reorder before the printer stops mid-job.
- Keeping one spare black cartridge on the shelf prevents downtime during month-end invoicing and filing.
- Original cartridges avoid the service calls and wasted paper that refilled or cloned units often cause.
Print Output and Document Quality
- Black ink dries quickly on plain A4 paper, so pages can be stacked and stapled straight off the tray.
- Dense, even text photocopies cleanly, which matters for court filings, tenders and signed contracts kept on file.
- Crisp small type keeps footnotes, account numbers and table figures readable on invoices and audited financial statements.
- Output resists smearing under yellow highlighters, useful for lawyers, students and auditors marking up printed pages.
- Black also builds grayscale in photos and charts when you choose black-only printing in the driver settings.
Package Contents
The HP 938 Black Ink Cartridge arrives in its original HP retail pack, sealed from the factory:
- One HP 938 Black Ink Cartridge, part number 4S6X8PE
- Sealed HP packaging showing the November 2027 pack date
- Mascom International receipt for warranty claims
Note:No printhead, cable or paper is included, since the printhead sits inside the OfficeJet Pro itself. Check that the seal is intact when your order arrives, before you pay.
Warranty
HP warrants the HP 938 Black Ink Cartridge against defects in materials and workmanship until the HP ink runs out or the end-of-warranty date on the cartridge arrives, whichever comes first. Mascom International adds a 6-month warranty on manufacturing defects and handles claims at our Kimathi Street service desk. Refilled, tampered or misused cartridges fall outside both covers.
Where to Buy the HP 938 Black Ink Cartridge in Kenya
HP 938 Black Ink Cartridge is available now at Mascom International, located at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Visit our store Monday through Saturday, 9:00 AM to 7:00 PM, to inspect the sealed pack and confirm the date before purchase. Matching 938 cyan, magenta and yellow cartridges are stocked on the same shelf.
Order through any of the following:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Mascom International ships the HP 938 Black Ink Cartridge across all 47 Kenyan counties with pay-on-arrival delivery, so you only pay when the cartridge reaches you. Nairobi and its environs receive same-day delivery. All other major cities and towns, including Mombasa, Kisumu, Nakuru, and Eldoret, receive next-business-day delivery. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Every cartridge is backed by the HP and Mascom cover described above, with claims coordinated at our Nairobi CBD service desk. Offices, schools and law firms across Kenya rely on Mascom International for dated, sealed original ink and honest pricing on every printer supply we stock.
- NOV 27 Mascom International.webp)
