How to Refill an HP 940C Ink Cartridge,
Hewlett-Packard 940C printer is a color inkjet printer that is compatible with Windows-based PCs and Macintosh. The 940C uses the HP No. 15 black ink cartridge and HP No. 78 ink cartridge tri-color. The color cartridge has three separate ink chambers for cyan, magenta and yellow. When ink is low on each cartridge, you can fill as a more cost effective to replace the cartridge.
Instructions
things you need:
Short needles and syringes with blunt
Black, cyan, magenta and yellow ink-jet filling
Ink Cartridge 1.16 inch screw
Paper towels
Push pin
1 Place the cartridges on a flat surface with some paper towels under them to collect spilled ink.
2 Place the black cartridge No. 15 for the bottom is facing up. Remove the plastic film covering the ball bearing. Push the ball bearing with small allen wrench until there is sufficient space to allow the syringe needle to enter.
3 Fill a syringe with 30 ml of black ink refill. Place a short blunt needle. Insert the needle into the fill hole that was covered earlier by the ball bearing.
4 Slowly inject ink into the cartridge.
5 Squeeze sides of cartridge to create a vacuum. Screw the 1/16th inch set in place in the hole until flush with the bottom of the cartridge. Loosen the sides of the cartridge.
6 Place the No. 78 color cartridge to the top of the cartridge up and the "Hewlett-Packard" logo side is up.
7 Click on the three plastic plugs into the top of the cartridge with a pin to pull off.
8 Fill a syringe with 8 ml of yellow ink. Insert the needle into the hole on the left side. Inject 3 ml of ink on the bottom of the ink chamber. Raise the needle to inject a bit the other 5 ml in the middle of the ink chamber.
9 Fill a syringe with 8 ml of magenta ink. Insert the needle into the center hole. The ink is injected in the same way the yellow ink is injected.
10 Fill a syringe with 8 ml of cyan. Insert the needle into the hole on the right side. The ink is injected in the same manner as the other two colors.
11 Tighten the two rounds over paper towels for five minutes to catch any leaking ink. Do not allow the printhead to touch the paper towel or directly to base the ink cartridges.
12 Replace the black and color cartridges in the HP 940C printer. Wait at least eight hours before printing the ink is able to saturate the sponge inside the cartridge.
Hewlett-Packard 940C printer is a color inkjet printer that is compatible with Windows-based PCs and Macintosh. The 940C uses the HP No. 15 black ink cartridge and HP No. 78 ink cartridge tri-color. The color cartridge has three separate ink chambers for cyan, magenta and yellow. When ink is low on each cartridge, you can fill as a more cost effective to replace the cartridge.
Instructions
things you need:
Short needles and syringes with blunt
Black, cyan, magenta and yellow ink-jet filling
Ink Cartridge 1.16 inch screw
Paper towels
Push pin
1 Place the cartridges on a flat surface with some paper towels under them to collect spilled ink.
2 Place the black cartridge No. 15 for the bottom is facing up. Remove the plastic film covering the ball bearing. Push the ball bearing with small allen wrench until there is sufficient space to allow the syringe needle to enter.
3 Fill a syringe with 30 ml of black ink refill. Place a short blunt needle. Insert the needle into the fill hole that was covered earlier by the ball bearing.
4 Slowly inject ink into the cartridge.
5 Squeeze sides of cartridge to create a vacuum. Screw the 1/16th inch set in place in the hole until flush with the bottom of the cartridge. Loosen the sides of the cartridge.
6 Place the No. 78 color cartridge to the top of the cartridge up and the "Hewlett-Packard" logo side is up.
7 Click on the three plastic plugs into the top of the cartridge with a pin to pull off.
8 Fill a syringe with 8 ml of yellow ink. Insert the needle into the hole on the left side. Inject 3 ml of ink on the bottom of the ink chamber. Raise the needle to inject a bit the other 5 ml in the middle of the ink chamber.
9 Fill a syringe with 8 ml of magenta ink. Insert the needle into the center hole. The ink is injected in the same way the yellow ink is injected.
10 Fill a syringe with 8 ml of cyan. Insert the needle into the hole on the right side. The ink is injected in the same manner as the other two colors.
11 Tighten the two rounds over paper towels for five minutes to catch any leaking ink. Do not allow the printhead to touch the paper towel or directly to base the ink cartridges.
12 Replace the black and color cartridges in the HP 940C printer. Wait at least eight hours before printing the ink is able to saturate the sponge inside the cartridge.
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