Printer

Details Printer Printer

2007-07-17

2007-07-17

Colilla, Daniel J. (Department: 2854)

Electrophotography

Diagnostics

Consumable

C399S009000

Reexamination Certificate

active

11029511

ABSTRACT:
A printer detects a roll radius of a recording paper roll once a day and measures the remaining amount of recording paper. Then the printer calculates the number of photo prints in the previous day as an actual consumption value from a difference in remaining amount of paper between the day and the previous day. The printer stores the actual consumption values in the form of a calendar cumulatively and creates a consumption record of the recording paper. Next, the printer estimates predicted consumption of the recording paper in a coming week based on the consumption record. And the printer predicts the time of occurrence of a paper-out condition based on the remaining amount of the recording paper and the predicted consumption. When it is predicted that the printer will be out of paper within a coming week, the printer displays a warning message on a LCD and urges a supervisor of the printer to prepare a new recording paper roll.

REFERENCES:
patent: 5282127 (1994-01-01), Mii
patent: 6366744 (2002-04-01), Phillips et al.
patent: 6493517 (2002-12-01), Hanson
patent: 2000-267520 (2000-09-01), None

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