Detachable print unit having updatable condition memory and printer using the same
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United States of America Patent
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Jul 28, 1998
Issued Date -
N/A
app pub date -
Apr 2, 1996
filing date -
May 27, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A printer is provided with at least one detachable print unit provided with a driven unit which is driven to print an image on a recording sheet. The condition of operation of the print unit is detected and the detected condition of operation of the print unit is stored in a data storage device that allows the updating of its contents. Thus, various kinds of information useful for the quality control of the printer and the print unit can be readily and surely collected and the collected information is stored in the print unit. The information useful for the quality control of the printer and the print unit can be read out from the data storage device after the print unit has been removed from the printer.
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