The Epson WorkForce Pro WF-7840 uses Epson 812 standard-capacity and 812XL high-capacity ink cartridges. Starink offers remanufactured Epson 812XL in an 8-Pack with two Black, two Cyan, two Magenta, and two Yellow cartridges. Each cartridge yields up to 1,100 pages individually, with a pre-installed OEM chip.
Includes two Black, two Cyan, two Magenta, and two Yellow cartridges. Each yields up to 1,100 pages per individual cartridge; actual output varies. OEM chips are pre-installed, so no chip transfer is required.
The Starink remanufactured Epson 812XL 8-Pack fits the Epson WorkForce Pro WF-7310, WF-7820, WF-7840, and WorkForce EC-C7000. Check the complete model name on your printer before ordering.
Check the complete printer model and cartridge number before ordering. Epson printer names identify compatibility. Starink is an independent remanufactured-cartridge brand and is not affiliated with Epson.
The WF-7840 uses Epson 812 standard-capacity or Epson 812XL high-capacity ink. Starink offers the remanufactured Epson 812XL 8-Pack for this model.
Epson also offers a separate 812XXL extra-high-capacity Black cartridge. The Starink 8-Pack on this page contains 812XL cartridges, not 812XXL. Epson 822XL is a different cartridge family and is not interchangeable with 812XL.
These Starink replacement-cartridge ratings apply to each individual cartridge:
| Cartridge | Page Yield |
|---|---|
| Epson 812XL Black | Up to 1,100 pages each |
| Epson 812XL Cyan | Up to 1,100 pages each |
| Epson 812XL Magenta | Up to 1,100 pages each |
| Epson 812XL Yellow | Up to 1,100 pages each |
Page yields are per individual cartridge, not a combined 8-Pack yield. Actual output varies with page content, settings, print frequency, and maintenance cycles.
Two complete Black, Cyan, Magenta, and Yellow replacement sets. Each cartridge has a pre-installed OEM chip. Replace individual colors in their matching slots.
| Cartridge | Capacity | Starink 8-Pack |
|---|---|---|
| Epson 812 | Standard | Not included |
| Epson 812XL | High | Eight 812XL cartridges |
| Epson 812XXL | Extra-high-capacity Black | Not included |
Choose by the cartridge family printed on the product listing. Starink's featured product is remanufactured 812XL.
Check exact WF-7840 compatibility, contents, chip description, and per-cartridge yield on each listing. Actual output varies.
Each Starink remanufactured Epson 812XL cartridge has a pre-installed OEM chip. No chip transfer from an empty cartridge is required.
The chip is intended to support communication with the listed compatible Epson printers. Recognition on every firmware version is not guaranteed.
A remanufactured cartridge is a previously used cartridge prepared for reuse and refilled with ink. This Starink 812XL 8-Pack is a replacement product, not a new Original Epson ink set.
Two Black, two Cyan, two Magenta, and two Yellow cartridges.
A chip is already installed on each remanufactured cartridge.
The stated yield applies to each cartridge individually.
The WF-7840 uses Epson 812XL ink for frequent wide-format office printing, including multi-page documents, reports, and presentations. The printer and its paper settings determine the supported output size.
Recheck the exact printer model, cartridge number, protective material, matching color slot, and seating. Record the warning and whether it appeared after a firmware update.
Turning off automatic firmware updates is not required before installing the Starink 812XL 8-Pack. If you want to review available update settings, see the supporting guide. An OEM chip does not guarantee recognition on every firmware version.
Compare the four exact Epson 812XL printer models, cartridge capacities, 8-Pack contents, and individual page yields in the complete guide.
The Epson WorkForce Pro WF-7840 uses Epson 812 standard-capacity or Epson 812XL high-capacity cartridges. Starink offers a remanufactured Epson 812XL 8-Pack for this printer.
Yes. The Starink remanufactured Epson 812XL 8-Pack is compatible with the Epson WorkForce Pro WF-7840. Confirm the complete printer model and cartridge family before ordering.
The pack contains two Black, two Cyan, two Magenta, and two Yellow cartridges. It provides two complete four-color replacement sets.
The 8-Pack includes two complete Black, Cyan, Magenta, and Yellow sets. You can install a set and keep the other cartridges for later replacement.
Each Starink Epson 812XL Black, Cyan, Magenta, and Yellow cartridge yields up to 1,100 pages per individual cartridge. Actual output varies with use.
No. The up-to-1,100-page yield applies to each individual cartridge. It is not a combined 8-Pack page yield.
Epson 812 is the standard-capacity family; Epson 812XL is high capacity. The Starink product on this page is remanufactured Epson 812XL.
No. Epson 812XXL is a separate extra-high-capacity Black cartridge. This Starink 8-Pack includes Epson 812XL Black and color cartridges.
No. Epson 812XL and 822XL are different cartridge families. The WF-7840 uses Epson 812 or 812XL cartridges, not Epson 822XL.
Yes. The WF-7840 supports wide-format office printing and uses Epson 812XL ink. The printer and its paper settings determine the supported print size.
Yes. The Starink Epson 812XL 8-Pack contains remanufactured replacement cartridges made from previously used cartridges. They are not new Original Epson cartridges.
Yes. Each Starink remanufactured Epson 812XL cartridge includes a pre-installed OEM chip. No chip transfer is required.
Yes. Black, Cyan, Magenta, and Yellow are separate cartridges. Replace the needed cartridge in its matching color slot.
In addition to the WF-7840, the pack is compatible with Epson WorkForce Pro WF-7310, WF-7820, and WorkForce EC-C7000. Check the exact model before ordering.
Follow the printer’s replacement prompts, remove the old cartridge, prepare the matching Epson 812XL color, and insert it securely. Let recognition finish and see the Installation Guide for details.
Check the printer model, 812XL cartridge number, protective material, color slot, and seating. Record the message and see the Epson recognition guide.
No. Disabling automatic firmware updates is not a required installation step. See the firmware settings guide if you want to review update options.
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