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To open cartridge site you need to follow the steps below Step 1) Put cartridge on some paper towels an area where you can tolerate a spill. Step 2) Using a 1/16 inch drill, drill a hole on the top, lower flat surface -- 1/3rd of the way from the edge. Make the hole about where the letter "E" in DELL is molded on the top surface. Step 3) Keeping the cartridge on paper towels, take a syringe bottle and fill it. Step 4) Insert the needle fully into the hole. Get the tip of the needle to the bottom of the cartridge. Inject the ink very S-L-O-W-L-Y and watch until the sponge is saturated. You must get the needle deep into the hard sponge. Step 5) Do not reseal the hole. Step 6 Expect a few drips. Do not allow the cartridge to touch the paper towel at this point, since the towel will draw out the ink. Step 7) Tape over the vent hole if you plan to store for several days. Karen James

There is no difference between hp 818 and 818b simple black cartridges as they are the same and are known as two names . . . . . . both the cartrideges are the same and are black and simple black. . . . . . . . . . .. . . . . . . .

A used car lot will be good if thats your plan only you need first get in touch with the state office that handles the issuing of a dealers license to show you the criteria to meet i.e Like how long of a lease you have to have on the location, size amount of bonds to post and much more. find a location also that will allow you to have a car lot, and either buy or lease it. You also might need approval from the local city to put a car lot in a location and may have to file paper work there too and get it approved. Only after you have obtained all the permits and licenses will you be able to acquire inventory, and this will demand either a line of credit from a bank, or lots of cash. Karen James Karen James