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RFK001BX

Read more about our ink!
Cartridge Comparison Guide
  • Cartridge Types
  • Ink & Toner Basics
  • Number of Pages & Shelf Life
Cartridge Type
Genuine or OEM (Original) Cartridges Remanufactured Cartridges Compatible Cartridges
Description OEM stands for original equipment manufacturer, meaning the cartridge was made by the same company that made your printer. Original brand cartridges are very reliable and sometimes the only option if your printer is new to market or uncommon. Remanufactured ink is a genuine brand cartridge that has gone through one cycle of use. After use, the cartridge is recycled, acquired by a remanufacturing facility and put through a rigorous professional refurbishing process. During the refurbishing process the cartridge is disassembled, thoroughly cleaned and tested for quality. It's then carefully refilled, tested again and brought back to life. Buying remanufactured prevents one less cartridge from ending up in a landfill. A compatible cartridge is a brand new ink cartridge built by a manufacturer other than your printer. It's like buying the generic version of the genuine brand. Most are uniquely designed to differentiate from genuine cartridges. Despite any structural difference you may notice, the cartridge will still fit in your machine and print a full yield, just like the original brand.
Price Factors Many printer manufacturers follow the razor-and-blades business model which may result in higher priced genuine cartridges. Remanufactured ink is much cheaper than the original brand ink. It's far more cost effective to refurbish a previously used cartridge than create a new OEM from scratch. Compatible ink is much cheaper than the original brand. Compatible suppliers don't have to worry about the additional costs that hinder OEMs like new printers or firmware, which lets them keep prices low.
Quality Original cartridges work extremely well and are covered under a warranty by the printer manufacturer High quality remanufactured ink will match the quality of the original, but not all remanufactured ink is created equal. Make sure you buy from a reputable supplier in order to get the absolute best results. High quality compatible ink will match the quality of the original, but not all compatible ink is created equal. Make sure you buy from a reputable supplier in order to get the absolute best results.
What's the difference between ink and toner cartridges?
Ink Cartridges Toner Cartridges
Printer Type Work with inkjet printers Work with laser printers
Material Liquid ink Dry powder
How it works Inkjet printers use a series of nozzles that spray tiny drops of ink directly on the print suface Laser toner printers use static electricity and heat to bond dry toner powder to a page
Commonly used by Casual home users, small business and photographers Large businesses and schools
Number of Pages You Can Print A cartridge's page yield is the estimated number of pages you can print. Page yield is based on 5% page coverage. This means that the quoted page yield is based upon printed pages where only 5% of the page has been imprinted with ink. For example, a short memo has approximately 5% coverage. If you have a cartridge that has a yield of 500 pages, it can print 500 pages of that short memo. If you are printing letters, photos or graphics, your coverage will vary greatly and your page yield will drop significantly.
Cartridge Warranty and Shelf Life Most ink and toner cartridges include a warranty or "best by" date on their box. Remanufactured and compatible ink cartridges can last 12-18 months unopened, and toner cartridges can last up to 3 years.
Cartridge Care and Storage Only open a cartridge when you need it. Opened cartridges will eventually dry out, especially if the protective tape or clip has been removed. If you have an open ink cartridge around and would like to try and prevent it from drying out, place it nozzle side up in a plastic airtight tub. If your cartridge came with protective tape or a clip reapply both before storing. Place a damp cloth or paper towel in the tub, next to the cartridge and keep it stored in a cool, dark place.

Refill Kit for Hewlett Packard (HP) 21 & 21XL Black Ink Cartridges

Page Yield: 380

Reg. Price $17.99

Our Price $13.99

In stock

Quantity
Buy 3 or More Black for $13.00 each (save $2.97+)
What's Included:
RFK001BX includes:
SKU# Qty PRICE PER UNIT
RFK001B 1 13.99
123inkjets offers you an alternative to replacing your entire Hewlett Packard C9351AN and CH569AN (HP 21 & 21XL) black ink cartridge, replace the ink! Save money and refill your cartridge yourself for significantly less than the cost of replacing the cartridge. We suggest refilling your ink cartridge as soon as it runs out of ink. Trying to print on an empty Hewlett Packard (HP) ink cartridge can cause the printheads on your cartridge to burn out. Our inkjet refill kits provide all the tools necessary for refilling your ink cartridge several times. Spend less and print more with our inkjet refill kits!

Compatible Printers

Specifications

SKU Printer Brand OEM Number Ink Color Cartridge Yield Type Page Yield Cost Per Page Shelf Life
Instructions
Instructions
RFK001BX HP C9351AN Black Standard 380 3.68 cents 24-36 Months
*Average cartridge page yield in accordance with ISO IEC 24711

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REVIEW SNAPSHOT®

by PowerReviews
Refill Kit for HP 21 & 21XL Black Ink
 
4.7

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 3 customers

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(1 of 1 customers found this review helpful)

 
5.0

Money Saving Product

By JoeBlow

from Northern Michigan

Site Member

Comments about Refill Kit for HP 21 & 21XL Black Ink:

This refill kit is super easy to use. Its refiller now has a screw to turn to push the ink through the needle instead of having to push down with a finger. This refill kit fills about 10-15 cartridges with hardly any mess. I've used this product for about two years with satisfaction. It's cheaper than buying individual cartridges of black ink.

(1 of 1 customers found this review helpful)

 
4.0

It pays to refill your own black ink.

By supercalifragixpyaldoshus

from Cheboygan, MI

Site Member

Comments about Refill Kit for HP 21 & 21XL Black Ink:

I got what I ordered, same as I reordered before. The black ink is black. It came in good time despite the weather. I haven't had to use it yet so I cannot say if the new ones are equal or not.

(2 of 2 customers found this review helpful)

 
5.0

Affordable way to buy ink!

By Moms

from Wisconsin

Site Member

Comments about Refill Kit for HP 21 & 21XL Black Ink:

I've bought this ink refill kit before and it is exactly as advertised. I try to be extra careful when I use it because, let's face it, ink is messy! With a little caution, you can save quite a bit on ink!!! YAY!

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