Canon Pixma iP110 series Online Manual page 382

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Cause
The print head lock lever is not locked or an ink tank is installed improperly.
Action
Open the print head cover, then take the corresponding actions below.
• Make sure that the ink tank is installed properly.
Push the ink tank until it clicks into place.
If the front (innermost) part of the ink tank is sticking up, push down on the "Canon" logo on the ink
tank.
• There are the right and left tabs on the print head lock lever. Push both tabs of the print head lock
lever and make sure that both tabs are locked securely.
Push both tabs of the print head lock lever until each clicks into place.
Push in the order of the left and right lever.
After taking the corresponding actions, close the print head cover.
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