Patent ID: 6967733
Filing Date: 2005-11-22
Classification: B41J,G06K

Abstract:
1. A printer comprising: (a) a printing processor for printing at least one of text and graphics; (b) a holder for holding one of a plurality of replaceable units used in conjunction with the printing processor; (c) a detection processor for detecting at least one of mounting or replacement of the one replaceable unit in the holder; (d) a nonvolatile memory comprising a plurality of areas for storing data; (e) a counting processor for metering an amount related to a specific function of the one replaceable unit; and (f) a storage processor for storing a cumulative amount relating to the specific function of the one replaceable unit metered by the counting processor in a first specific area of the memory, and when the detection processor detects that the one replaceable unit is replaced with a new replaceable unit, storing a separate cumulative amount relating to the metered specific function of the new replaceable unit in a second specific area of the memory, and storing in a third specific area of the memory a total amount relating to the specific function.