HP DeskJet 940cw – a reliable printer for everyday home and office printing The HP DeskJet 940cw is a classic inkjet printer valued for its simplicity, stable operation and good print quality in everyday use. It works well for documents, school materials and occasional color graphics. To keep it printing smoothly and with consistent quality, it’s worth choosing the right ink for HP DeskJet 940cw—matched to the device and your real printing needs. Ink for HP DeskJet 940cw: what you need to know before you buy This category includes ink cartridges designed for the HP DeskJet 940cw (also searched as: HP 940cw, 940cw, 940 cw, 940 CW, 940CW). The printer uses two key cartridge families: HP 15 (C6615DE) for black and HP 78 (C6578DE / C6578AE) for color. With the right cartridge set, you’ll get sharp black text, readable small fonts, and vivid colors in charts, images and everyday prints. Whether you print occasionally or regularly, the right ink for printer HP DeskJet 940cw affects: - Print clarity – crisp text and even coverage.
- Color balance – natural, consistent colors for graphics.
- Printer reliability – fewer interruptions, smoother printing.
- Cost per page – especially important for frequent printing.
Compatible and Original OEM ink cartridges – choose what fits your needs We offer both Original OEM cartridges and carefully selected compatible cartridges. If you prefer the manufacturer’s solution, an Original OEM cartridge is a safe, straightforward choice. If you want to reduce printing costs without sacrificing quality, our compatible cartridges are an excellent alternative—our compatible ink for HP DeskJet 940cw is designed to deliver results comparable to originals, with stable performance and great everyday print quality. - Original OEM ink cartridge – great for those who want the official HP solution and maximum predictability.
- Compatible ink cartridge – a budget-friendly choice; in our store, compatible cartridges are as good as originals for typical home and office use.
Popular cartridges in our offer (black and color, single and multipacks) To make it easy to find the right ink for HP 940cw, we stock the most commonly used cartridge versions—both single cartridges and convenient multipacks: - Compatible Ink Cartridge 15 for HP (C6615DE) (Black) – everyday black printing for documents.
- Original OEM Ink Cartridge HP 15 (C6615DE) (Black) – OEM black cartridge for users who prefer the manufacturer’s original.
- Compatible Ink Cartridge 78 for HP (C6578DE) (Color) and Compatible Ink Cartridge 78 for HP (C6578AE) (Color) – color printing for graphics, simple photos and school projects.
- Original OEM Ink Cartridge HP 78 (C6578AE) (Color) and Original OEM Ink Cartridge HP 78 (C6578DE) (Color) – OEM color options for consistent results.
- Compatible Ink Cartridges 15 for HP (SA296A) (Black) (3-pack) – a cost-effective choice if you print a lot of text.
- Compatible Ink Cartridges 15 for HP (C6632D) (Black) (2-pack) – practical reserve for home or small office.
- Compatible Ink Cartridges 78 for HP (C8725A) (Color) (2-pack) – convenient multipack for frequent color printing.
Thanks to this selection, you can easily match the cartridge type to your printing style—whether you need a single replacement or you prefer to stock up with a multipack. How to choose the right ink cartridge for HP DeskJet 940cw When selecting ink for HP DeskJet 940cw, we recommend checking two things: the cartridge code and your printing habits. For black, look for C6615DE (HP 15). For color, choose C6578DE or C6578AE (HP 78). If you often print documents, multipacks of black cartridges can significantly lower your cost per page. If you print color occasionally, a single color cartridge may be the most practical option. Common issues reported by users of the HP DeskJet 940cw often relate to cartridges rather than the printer itself. Here’s what helps: - Printer doesn’t recognize the cartridge – reseat the cartridge, check for protective seals, and ensure the code matches (HP 15 / HP 78).
- Streaks or faded prints – run the printer’s cleaning cycle and replace cartridges that are near empty.
- Color looks off – consider replacing the color cartridge (HP 78) and print a test page for alignment.
- Ink dries out after long breaks – if you print rarely, it helps to print a small test page from time to time.
If you’re unsure which version (OEM or compatible) is best for you, we’ll help you choose—just tell us what you print and how often. Order your ink today and keep your HP 940cw ready to print We encourage you to explore our full selection of ink cartridges for HP DeskJet 940cw—both compatible and Original OEM. Choose a single cartridge for quick replacement or a multipack to save money and avoid downtime. We ship quickly and pack securely, and our team is ready to help if you need support with selecting the right ink for printer HP DeskJet 940cw. CTA: Add the right cartridge to your cart now or contact us—together we’ll choose the best ink option for your HP DeskJet 940cw and your printing needs. | 
