Image recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoshiaki Takayanagi
Life of this patent
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Abstract
There is disclosed an image recording apparatus with a detachable recording head. The head is equipped with a non-volatile memory which contains data representing the recording characteristics of the head and data (check sum or parity data) enabling to identify whether the head matches the apparatus. At the start of power supply, the recording apparatus reads these data and identifies whether a matching head is mounted.
Claims27
An image recording apparatus for recording an image according to image information on a recording material, using recording means including plural recording elements, said recording means being detachable from the image recording apparatus and including memory means for storing data for correcting variations in recording density based on said plural recording elements, comprising:
- discrimination means for discriminating whether the data stored in said memory means is proper on condition that said recording means is attached to said image recording apparatus;
- and
- correcting means for correcting record density based on said plural recording elements by using said data at image recording time when said discriminating means identifies that said data is proper;
- and
- warning means for warning that said recording means is not adequate when said discrimination means identifies that said data is improper.
Dependencies are inferred from the claim text.