First check with the brand of printer you use. I know with Lexmark and HP you can not refill your own cartridges because the printer will tell you it is empty and not read a new cartridge number and shut down not allowing you to print. I buy already refilled Lexmark ink from the manufacture it is a few dollars less and I recycle my old cartridges with the company. If you own an older printer you can buy ink refilling kit on eBay or Amazon even inkjet.com and you can refill your old ones and use them over and over again. You will just have to check with the brand of printer. I use to refill my old ones with a Canon printer.
Some printer companies offer cartridge refills for purchase rather than buying new ink cartridges every time. Refills are better for the environment as well. Cartridge World has refills for HP, Samsung and Lexmark. They also offer a buy back service giving a credit back if one returns the empty ink cartridge to them.
There are products for ink cartridge refills out there, but they are notorious for being messy and not as reliable as buying an actual ink cartridge. If you want to save yourself the chore of cleaning ink off your hands and furniture, you may just want to stick to buying normal ink cartridges.
You can purchase Canon ink refills online from the Staples website. Alternatively, you can also purchase these refills online from retailers such as Amazon.
To refill the Brother LC31BK ink cartridge you can take it to a store that performs Instore refills. Some walgreens offer this service in the photolab department. You can also purchase an inkjet cartridge refill kit online or in a store, and refill the cartidge yourself.
Office supply stores may have discounts, rebates, and sales on ink cartridge refill kits. Their weekly ads, available online or in-store, will show current sales. Refills are also available through discount online printer supply stores. There are many of these, so there is plenty of competition and you should be able to get a good price. Look for free shipping and no minimum order. Drugstores such as CVS and discount stores like Costco also sell cartridge refills.
In Ottawa, one can purchase ink refills for a laserjet 1100a cartridge from Toner Supermarket Ltd. Toner Supermarket Ltd caters to Canada and has a flat shipping rate of $6.99.
Any type of ink can be used in a Canon printer, the only thing that must match is the ink cartridge. There are many kits for refills available online as well as many stores such as Cartridge World and even Costco where you can get your ink cartridges refilled.
You can purchase ink cartridge refill kits. Experts say that refills for printer ink cartridges can sometimes damage your printer or produce a poor quality of printing.
Costco Wholesale and Walgreens stores both offer ink cartridge refilling services. Staples offers refill service, but only refills certain cartridges.
I don't know where you are, but most Walgreen's drug stores are now offering ink cartridge refills for $10 (BLACK) and $15 (COLOR) They do need to make sure that your cartridge is still useable so be very careful when you remove it as to not mess up the connectors (the metal pieces)
You could go to an office supply store in your area, they will probably have refill kits there. Also, you can go online and find them on eBay and amazon.
All modern day printers allow the use of ink re-fills, but the printer will suffer from print quality and a message usually appears notifying the user that the ink cartridge is not a genuine cartridge.