Facsimile apparatus for producing variable size and resolution images on a reproduction medium.

摘要

A facsimile system which produces variable resolution and size images on a reproduction medium (80) is disclosed. A timing means (70) produces two signals which control resolution in a first direction. The first signal controls release of pixels from a memory buffer (22) to modulate the beam intensity of a cathode ray tube while the second signal controls the sweep in the first direction of the electron beam of the CRT. Resolution and size in a second direction is controlled by repeating lines of image data until the desired resolution is achieved. Hardware savings in the facsimile can be achieved by connecting a direct memory access controller (20) to a graphics microprocessor through the host post of the graphics microprocessor (10) and by using alternating banks of memory for storage of image data. <IMAGE>