How to Change Ink Cartridges on a Canon MP450

Written by larry simmons
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How to Change Ink Cartridges on a Canon MP450
(Thomas Northcut/Photodisc/Getty Images)

The Canon Pixma MP450 photo all-in-one inkjet printer is a colour printer, copier and scanner in a single desktop unit. Capable of printing out 22 black-ink-only pages per minute or 17 colour pages, the MP450 sees primary usage in the home or small office. A print throughput of that speed for an inkjet printer can quickly run through the print cartridges, though, requiring regular cartridge changes of both the black ink cartridge and the colour ink cartridge. Changing the cartridge is a quick process, though, completed in a matter of minutes so there is little effect on printing efficiency.

Skill level:

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Things you need

  • CL-51 colour FINE cartridge
  • PG-50 black FINE cartridge

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  1. 1

    Grab the scanning unit that makes up the top lid of the printer on both sides, toward the front of the printer. Lift the scanning unit, pivoting it on the hinge at the rear of the printer.

  2. 2

    Pull the small plastic scanning unit support lever located beneath the right-hand side of the scanner unit down as you lift the unit. Prop the lower end of the lever into the small notch on the top of the right ledge of the printer cavity, in order to hold the scanner unit above the cavity to access the cartridges. The cartridge caddie within the printer will move to the left-hand side of the printer cavity as you open the scanner unit so you can access the cartridges.

  3. 3

    Remove the empty print cartridge by pulling the cartridge directly back from the cartridge caddie until it stops. Place your thumb onto the small half-circle ridge on the top of the cartridge and tilt it downward and to the rear to disengage it from the cartridge caddie. Lift the cartridge free of the caddie.

  4. 4

    Remove the protective tape from the side and bottom of the new cartridge. Be careful not to touch the print circuitry revealed with the tape removal. Use the CL-51 colour cartridge if replacing the colour ink, and the PG-50 black cartridge for black ink.

  5. 5

    Insert the new cartridge into the cartridge caddie. Tilt the new cartridge into place with the larger end of the cartridge containing the print circuitry higher than the other end and toward the rear of the printer. Lift the lower end of the cartridge upward, easing the circuitry end into the caddie until the cartridge is level. Push the cartridge forward into the caddie.

  6. 6

    Lift the plastic scanning unit support lever and lower the scanning unit. When closed, the cartridge caddie will move to the right of the printer cavity and make several passes across the printer to prepare for printing. Wait about two minutes for the printer to complete the passes before printing.

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