Photocopying – Contact printing – Light boxes
Patent
1995-01-20
1996-12-10
Beatty, Robert
Photocopying
Contact printing
Light boxes
318685, 318696, G03G 1528
Patent
active
055836208
ABSTRACT:
An image forming apparatus includes a load for scanning an original document, a pulse motor for driving the load and a supplying unit for supplying a simulated sine waveform driving signal to the pulse motor. A one/two-phase excitation method is used when the load is moved forward and a two-phase excitation method is used when the load is moved backward. The load is moved at a speed corresponding to an image forming magnification. The number of steps per period of the simulated sine waveform driving signal will be changed depending on the excitation method of the pulse motor or the magnification.
REFERENCES:
patent: 4333042 (1982-06-01), Kawada et al.
patent: 4471282 (1984-09-01), Moriguchi
patent: 4476421 (1984-10-01), Moriguchi
patent: 4477756 (1984-10-01), Moriguchi
patent: 4490664 (1984-12-01), Moriguchi
patent: 4513898 (1985-04-01), Spitsbergen
patent: 4535405 (1985-08-01), Hill et al.
patent: 4540927 (1985-09-01), Tanimoto
patent: 4555653 (1985-11-01), Nawada et al.
patent: 4642544 (1987-02-01), Furamura et al.
patent: 4906910 (1990-03-01), Tanuma et al.
patent: 4917460 (1990-04-01), Yamada et al.
patent: 5059883 (1991-10-01), Takahashi
patent: 5157515 (1992-10-01), Hasegawa
Beatty Robert
Canon Kabushiki Kaisha
LandOfFree
Image forming apparatus having scanner driven by pulse motor 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 having scanner driven by pulse motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus having scanner driven by pulse motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-427750