Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic
Reexamination Certificate
2007-03-27
2007-03-27
Pendegrass, Joan (Department: 2852)
Incremental printing of symbolic information
Electric marking apparatus or processes
Electrostatic
C358S001150
Reexamination Certificate
active
09328469
ABSTRACT:
To correct the distance between respective drums and supply image data, an image processing system using a 4-drum type color image forming apparatus requires a large-capacity image memory for temporarily storing transferred image data, and is inevitably expensive. In this invention, image data of four colors isochronously transferred via a high-speed serial interface such as an IEEE 1394 interface are respectively supplied to image processing units and image forming units via delay memories. Therefore, the time difference required for the print sheet to reach each drum can be corrected in each image forming unit to appropriately form an image at a high speed and low cost.
REFERENCES:
patent: 5099260 (1992-03-01), Sato et al.
patent: 6097499 (2000-08-01), Casey et al.
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