Image forming apparatus, apparatus for supplying image data to i

Details Image forming apparatus, apparatus for supplying image data to i Image forming apparatus, apparatus for supplying image data to i

1999-08-23

2000-10-10

Royer, William J.

Electrophotography

Remote monitoring

399 9, G03G 1500

Patent

active

061309990

ABSTRACT:
An engine control unit of a printer engine checks the status of each part of the printer, and if there is any change in the status, generates a predetermined representative status of changes and outputs a status change signal to a controller (RIP). The controller is informed of a change in the status by the status change signal, and reads the predetermined representative status to discriminate the changed status from unchanged statuses. In accordance with the discriminated status, the current status can be read. Accordingly, it is not necessary to periodically read the statuses, improving the efficiency of an image forming process. A status change informing control unit in the engine control unit sets a changing status bit of a basic status or status change signal and sends it to the controller, when there occurs a change in any data of a presence/absence and paper size of a paper sheet at a paper feeding port and a loading state of an optional paper feeder. The controller periodically monitors the basic status or status change signal. Only when the changing status bit becomes true, the controller requests the engine control unit to supply the status data representative of a presence/absence, paper size, or loading state of an optional paper feeder.

REFERENCES:
patent: 4167322 (1979-09-01), Yano et al.
patent: 4876606 (1989-10-01), Banno et al.
patent: 5057866 (1991-10-01), Hill, Jr. et al.
patent: 5138377 (1992-08-01), Smith et al.
patent: 5164770 (1992-11-01), Furuichi et al.
patent: 5214772 (1993-05-01), Weinberger et al.
patent: 5220674 (1993-06-01), Morgan et al.
patent: 5282127 (1994-01-01), Mill
patent: 5291420 (1994-03-01), Matsumoto et al.
patent: 5333286 (1994-07-01), Weinberger et al.
patent: 5361265 (1994-11-01), Weinberger et al.
patent: 5365310 (1994-11-01), Jenkins et al.
patent: 5398257 (1995-03-01), Groenteman
patent: 5412779 (1995-05-01), Motoyama
patent: 5434650 (1995-07-01), Nakahara et al.
patent: 5586250 (1996-12-01), Carbonneau et al.
patent: 5649120 (1997-07-01), Motoyama
patent: 5872635 (1999-02-01), Akiyama
patent: 5897235 (1999-04-01), Honma
patent: 5910849 (1999-06-01), Tamagaki

Affiliated with

Also associated with

Rating

Image forming apparatus, apparatus for supplying image data to i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus, apparatus for supplying image data to i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus, apparatus for supplying image data to i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2262751