Ink cartridges for HP DeskJet 6840dt - compatible and original OEM

HP DeskJet 6840dt – a reliable home-and-office inkjet

HP DeskJet 6840dt (also searched as HP 6840dt, 6840DT, or HP Deskjet 6800 Series) is a proven inkjet printer designed for everyday printing: documents, school materials, invoices, and occasional color graphics. To keep this model working at its best, it’s worth choosing the right ink for HP DeskJet 6840dt—matched to your needs and your print style.

Ink cartridges for HP DeskJet 6840dt – what to expect

In this category you’ll find ink cartridges for the HP DeskJet 6840dt in two variants: Original OEM and Compatible. Both options are designed for the same cartridge standards used in this series, including the well-known symbols such as C9033B (often used when searching for the device) and the cartridge codes listed below.

Whether you print mostly text or you need vivid colors, choosing the right ink for printer HP DeskJet 6840dt helps you get:

• sharp black text for contracts and everyday documents,
• clear color elements for charts, handouts, and photos,
• stable performance and fewer printing interruptions,
• better cost control when you print frequently.

Compatible or Original OEM – choose what fits your priorities

We offer both Original OEM ink cartridges and carefully selected compatible ink for HP DeskJet 6840dt. Original OEM cartridges are produced by HP and are a great choice if you want to stick strictly to the manufacturer’s solution.

At the same time, our compatible cartridges from DrTusz.pl are designed to deliver results that are as good as the originals—with excellent print quality and strong value for money. If you print a lot, compatible ink can significantly reduce page costs without sacrificing readability or color clarity.

Popular cartridges in this category (black, color, and multipacks)

To make shopping easier, we keep the most frequently chosen items for this model in stock—both single cartridges and convenient sets. Customers often pick:

• Compatible Ink Cartridge 339 for HP (C8767EE) (Black) and Original OEM Ink Cartridge HP 339 (C8767EE) (Black) – reliable black for everyday documents,
• Compatible Ink Cartridge 343 for HP (C8766EE) (Color) and Original OEM Ink Cartridge HP 343 (C8766EE) (Color) – color printing for graphics and mixed documents,
• Compatible Ink Cartridge 338 for HP (C8765EE) (Black) and Original OEM Ink Cartridge HP 338 (C8765EE) (Black) – another popular black option used in the 6800 series,
• Compatible Ink Cartridge 344 for HP (C9363EE) (Color) and Original OEM Ink Cartridge HP 344 (C9363EE) (Color) – color cartridge widely used by customers who print more images,
• Compatible Ink Cartridges 338 + 343 for HP (SD449EE) (multi pack) and Original OEM Ink Cartridges HP 338 + 343 (SD449EE) (multi pack) – a practical set for balanced black-and-color printing,
• two-packs like Compatible Ink Cartridges 339 for HP (C9504EE) (Black) (2-pack) or Compatible Ink Cartridges 344 for HP (C9505EE) (Color) (2-pack) – ideal for higher volume printing and fewer reorders.

How to choose the right ink for HP DeskJet 6840dt

When selecting ink for HP DeskJet 6840dt, we recommend a quick checklist:

• Match the cartridge code: choose 338, 339 (black) and 343, 344 (color) according to what you currently use or what your printer supports.
• Decide between Original OEM and Compatible: OEM for brand consistency; compatible for great savings and quality comparable to original.
• Think about your print volume: if you print often, multipacks and 2-packs reduce downtime and lower the cost per page.
• Consider what you print most: text-heavy users will benefit from an extra black cartridge; mixed printing users should keep a color cartridge ready as well.

Common user issues with the HP DeskJet 6840dt – and how the right cartridge helps

This series is dependable, but like any inkjet it can run into a few typical situations. We most often hear about:

• Faded prints or streaks – usually caused by low ink levels or long breaks between prints; replacing the cartridge and running a standard cleaning cycle often solves it.
• Printer not recognizing a cartridge – reinsert the cartridge firmly, check protective tape is removed, and restart the printer.
• Color imbalance – when one color runs out, images look “off”; keeping a spare color ink cartridge for HP DeskJet 6840dt prevents delays.

If you’re unsure which ink cartridge for HP 6840dt you need, we’re here to help—just tell us what you print and which cartridge code you currently have.

Order your HP DeskJet 6840dt ink cartridges with confidence

We encourage you to browse our selection of compatible and Original OEM ink cartridges for HP DeskJet 6840dt and choose the option that best matches your budget and printing habits. We focus on availability, clear product labeling, and helpful customer support—so you can get back to printing quickly.

CTA: Add the right cartridge to your cart today or contact us for help choosing the best ink for printer HP DeskJet 6840dt. We’ll help you pick a black, color, or multipack solution and arrange fast delivery.