Patent ID: 8749820
Filing Date: 2014-06-10
Classification: G06F,G06K

Abstract:
1. An image forming apparatus comprising: a Page Description Language (PDL) data receiving unit configured to receive PDL data; a rendering unit configured to analyze the received PDL data and to generate a continuous-tone bitmap image; a time measuring unit configured to measure processing time of the rendering unit; a compression unit configured to compress the generated continuous-tone bitmap image and to output compressed image data; a first storing unit configured to store the compressed image data as a print waiting job if a compression rate of the outputted compressed image data is not more than a first threshold value; a second storing unit configured to store the PDL data as a print waiting job if the compression rate of the outputted compressed image data exceeds the first threshold value and if processing time measured by the time measuring unit is not more than a second threshold value; and a third storing unit configured to store a generated half-tone print data whose density is corrected from the continuous-tone bitmap image according to a measurement result of density characteristics of a printer engine and the PDL data as the print waiting job if the compression rate of the outputted compressed image data exceeds the first threshold value and if the processing time measured by the time measuring unit exceeds the second threshold value.