Developing toner detecting device

Details Developing toner detecting device Developing toner detecting device

1990-10-17

1992-04-14

Pendergrass, Joan H.

Photocopying

Contact printing

Light boxes

355245, 355308, G03G 1500, H04N 100

Patent

active

051052199

ABSTRACT:
An image recording apparatus in which said image recording apparatus has a toner supplied by a developing portion provided separately from a photosensitive material to form a toner latent image thereon, said toner later image is transferred onto a recording paper thereby recording said image, said image recording apparatus comprising, developing toner detecting device for detecting a predetermined quantity of a residual toner, paper number detecting device for detecting the number of said recording paper which has been recorded before detecting said predetermined quantity of said residual toner, and calculating device for calculating the number of recording sheet to be recorded to which the number of said recording sheet is calculated by the basis of said predetermined quantity of said residual toner and the number of recording paper before detecting said predetermined quantity of said residual toner.

REFERENCES:
patent: 4627715 (1986-12-01), Kikuno
patent: 4669856 (1987-06-01), Yamada
patent: 4745440 (1988-05-01), Kono et al.
patent: 4922294 (1990-05-01), Nakagami et al.

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