U.S. Remanufactured for HP 712 Black (3ED71A) Ink Cartridge New Chip

Remanufactured for HP 712 Black Ink Cartridge 80 ml (3ED71A) – DesignJet T210/T630/T650

Regular price
$50.69
Sale price
$38.99
Unit price
per 
HP price $81.00
Our price $38.99 Save 51%

You save $42.01 vs. HP 3ED71A at HP.com (price checked Oct 20, 2026).

  • In stock. Orders placed by 4 PM ET Mon–Fri ship the same day.
  • Free shipping on orders over $50
  • 1-year 100% satisfaction guarantee — replacement or refund

Product Specifications

SKU11297H
OEM Part Number3ED71A
Cartridge TypeInk Cartridge
Compatible BrandHP
ColorBlack
ConditionRemanufactured
Warranty100% Satisfaction Guarantee

Product Description

HP 712 Black 80 ml (3ED71A) at a glance: an 80 ml black cartridge, the largest HP 712 size, for HP DesignJet T210, T230, T250, T630, T650 and Studio large-format printers. Remanufactured: a genuine HP 712 shell, cleaned, refilled and print-tested, with a new aftermarket chip. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Long Island, NY.

Key Facts

Condition Remanufactured (genuine OEM shell, cleaned, refilled, print-tested)
Replaces OEM part 3ED71A (HP 712 Black, 80 ml)
Ink capacity 80 ml (same as the original HP 712 80 ml black)
Chip New aftermarket chip
Guarantee 1-year 100% satisfaction guarantee: replacement or refund
Shipping Same business day when ordered by 4 PM ET (Mon–Fri); free shipping on orders over $50

What's in the Box

  • 1 × HP 712 Black (3ED71A) remanufactured ink cartridge — 80 ml

Compatible Printers (6 models)

  • HP DesignJet T210 (24-in)
  • HP DesignJet T230 (24-in)
  • HP DesignJet T250 (24-in)
  • HP DesignJet T630 (24-in and 36-in)
  • HP DesignJet T650 (24-in and 36-in)
  • HP DesignJet Studio (24-in and 36-in)

Don't mix these up: HP 712 black comes in 38 ml (3ED70A) and 80 ml (3ED71A); both fit the same slot. HP 712 is not interchangeable with HP 711 (DesignJet T120/T520), and these printers use the separate HP 713 printhead.

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right cartridge for you.

Printer guides: HP DesignJet T210 ink guide | HP DesignJet T630 ink guide | HP DesignJet T650 ink guide

Part Numbers & Also Known As

This cartridge replaces or is also searched for as: 3ED71A, HP 712 black, HP712 black, HP 712 80ml black, HP 712 black 80 ml, DesignJet T630 black ink, DesignJet T210 black ink

Chips, Printer Messages & Installation

Installing: open the ink cartridge cover, lift out the empty cartridge and gently shake the new one before pushing it into the matching color slot until it seats. Close the cover and wait for the printer to finish checking the ink.

Non-HP supply messages: DesignJet printers display a notice when a refilled or non-HP cartridge is installed. Confirm the message on the front panel to keep printing. If a cartridge is not detected, reseat it and check the chip contacts are clean.

Printheads are separate: DesignJet printheads are replaced on their own schedule, not with each ink cartridge. If a color is missing after a new cartridge, run the printhead cleaning from the front panel.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Remanufactured vs. Compatible vs. Original

Original (OEM) cartridges are new from the printer brand and cost the most. Remanufactured cartridges, like this one, start as genuine original shells that are cleaned, refilled with high-quality ink and print-tested, so they fit like the original at a fraction of the price. Compatible cartridges are built new by a third party with their own chip. This version carries a new aftermarket chip in place of the original. Castle Ink sells remanufactured inkjet cartridges and compatible (newly manufactured) toner.

Other Options for the Same Printers

Frequently Asked Questions

How much ink is in this HP 712 black?

80 ml, the same as the original HP 712 80 ml black (3ED71A). It lasts more than twice as long as the 38 ml black.

Which printers use HP 712?

The HP DesignJet T210, T230, T250, T630, T650 and DesignJet Studio.

Does it include a printhead?

No. These printers use a separate HP 713 printhead that lasts through many ink cartridges.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Store it sealed, at room temperature and out of direct sunlight, and use it within about 24 months for best results. Once opened, install it promptly.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Long Island, NY, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.



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