Image recording apparatus with a detecting device for detecting

Details Image recording apparatus with a detecting device for detecting Image recording apparatus with a detecting device for detecting

1990-06-25

1992-06-30

Hix, L. T.

Photocopying

Projection printing and copying cameras

With developing

G03B 2752

Patent

active

051267829

ABSTRACT:
An image recording apparatus forms the image by using a photo-sensitive sheet accommodated in a cartridge, one side of which has a bar code attached. In this recording apparatus, a remaining amount of the sheet in the cartridge at a given time is calculated by substracting a used amount of the sheet detected by a rotary encoder installed on a motor shaft of a sheet feeding device from a total amount of the sheet detected by reading the bar code through a bar code reading device, and is displayed on a display. And, this recording apparatus corrects the remaining amount of the sheet in the cartridge based on a rewound amount of the sheet detected by the rotary encoder when a single copy mode is selected. Further, the apparatus displays copyable numbers according to the remaining amount of the sheet based on a copy size set. Therefore, it is possible by the recording apparatus to precisely recognize the remaining amount of the sheet in the cartridge at an arbitrary time and a timing for exchanging the old cartridge for a new cartridge.

REFERENCES:
patent: 4351609 (1982-09-01), Inoue et al.
patent: 4947472 (1990-08-01), Maeda
patent: 4994851 (1991-02-01), Iwai
patent: 5028953 (1991-07-01), Katoh et al.
patent: 5049921 (1991-09-01), Sonobe et al.

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