Patent ID: 6501560
Filing Date: 2002-12-31
Classification: H04N

Abstract:
An image duplicating apparatus, comprising:an image reading device that reads images from an original line-by-line in the main scanning direction; a printing device that consecutively forms the images line-by-line onto a recording paper in the sub scanning direction, the image duplicating apparatus performing input/output processing between the image reading device and the printing device via a memory to duplicate the images read from the original onto the recording paper; a line data writing controlling device that writes image line data obtained from the image reading device line-by-line into the memory, and retains at least one line of the image line data in the memory; a written line information obtaining device that obtains the written line information as to the condition of at least two lines of the image line data written into the memory by the line data writing controlling device; and a line data reading controlling device that reads out one complete line of the image line data from the memory upon the receipt of a data output request from the printing device, based on the written line information obtained by the written line information obtaining device, and outputs the image line data to the printing device.