Patent ID: 6870634

Claim:
A digital image outputting device for receiving image data and producing an image on a recording medium based on the image data, the digital image outputting device including: a page-size detector for detecting page-size of image data coming in; a data compressor for compressing the image data; an image memory for storing the image data compressed by the data compressor; a data expandor for expanding the image data stored within the image memory in a compressed state; a to-be-secured capacity determining unit for determining necessary recording area within image memory based on presumption of both page-size detected by the page-size detector and worst data-compressing rate; and a memory reserving unit for reserving a recording area of the capacity determined by the to-be-secured capacity determining unit within the image memory, wherein the image data compressed by the data compressor is stored in the recording area reserved by the memory reserving unit.