Patent ID: 6452690
Filing Date: 2002-09-17
Classification: H04N

Abstract:
An image forming apparatus comprising:(a) image reading means for reading an image to generate image data; (b) a single memory capable of writing and reading data in parallel and having a capacity of an image data quantity corresponding to one scanning line, for storing the generated image data; (c) image forming means driven by a scan-writing clock having a frequency different from that of a reading clock of the image reading means for reading the image data stored in the memory, thereby to form the image; and (d) timing control means for shifting a timing for writing the image data in the single memory from the image reading means and a timIng for the image forming means to read the image data from the single memory, and for controlling the image forming means to read the image data from the single memory, corresponding to one scanning line which was written in the single memory immediately before the image forming means reads, as continuous data for one scanning line.