IMAGE GENERATOR DEVICE, IMAGE FORMING DEVICE, PRINT CONTROL DEVICE, DATA TRANSFER METHOD, DATA CONVERSION METHOD, DATA TRANSFER PROGRAM AND DATA CONVERSION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an image producing device by which an efficient image data transfer can be made. SOLUTION: A printer controller transfers reference line data or a packet of different data in comparison with the previous line of image data divided into lines to a printer engine. The printer engine restores the current line data with the difference data packet and the previous line data (S37). If a packet is lacking (S34 is Yes), the current line is covered by data of the previous line (S42). When receiving a reference line data packet of the following block (S36 is Yes), if an error occurs (S39 is Yes) in the previous block and the received reference line does not match the restored reference line, the covering process in the step S42 is not corrected, so that, the restoring processing of the previous line is conducted in the reverse direction from the reference data packet and the different data packet up to the line where the error has occurred.