the invention relates to a document image processing apparatus in which a document image is lighted by a lighting device and is photographed and the photographed document image is displayed on a display , wherein the apparatus has a memory comprising a volatile memory device or / and a non - volatile memory device and a controller having control means which includes an operational device therein and can intermittently light on / off the lighting device , thereby enabling the document image to be stored and reproduced . the display is constructed by a non - thermion device such as liquid crystal or the like and the controller has means to intermittently light on / off a light source of the lighting device , so that an electric power consumption can be reduced and a portability is improved .