Electrophotography – Diagnostics – Consumable
Patent
1995-04-12
1997-10-14
Pendegrass, Joan H.
Electrophotography
Diagnostics
Consumable
347139, G03G 1500
Patent
active
056781245
ABSTRACT:
A printing apparatus includes a measuring device for measuring the elapsed time for feeding a sheet of paper from its top edge to its bottom edge by feeding a first paper; a paper size calculating device for calculating a paper size on the basis of the measured time and the paper feeding rate which is determined by the printing apparatus; a calculated result transmitting device for transmitting the paper size calculated by the calculating device and informing an operator of the paper size; a comparing device for comparing the paper size calculated by the calculating device with the paper size specified by an external apparatus; a size setting device for setting within the printing apparatus the calculated paper size as a specified paper size for printing a second and later sheets when the above comparison indicates that both sizes match each other; a display device for displaying a mismatch of the paper size in order to inform an operator of the mismatch when the above comparison indicates that the paper sizes do not match each other; and a reprint control device for reprinting the page after the operator replaces the paper.
REFERENCES:
patent: 5291225 (1994-03-01), Saito
patent: 5464204 (1995-11-01), Suzuki
patent: 5512928 (1996-04-01), Kato et al.
Canon Kabushiki Kaisha
Pendegrass Joan H.
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