PRINTER CAPABLE OF INDICATING NUMBER OF TIMES OF EXECUTABLE RESIDUAL PRINTING JOBS, PRINTING SYSTEM, RECORDING MEDIUM STORING PROGRAM AND METHOD FOR INDICATING NUMBER OF TIMES OF JOBS

摘要

PROBLEM TO BE SOLVED: To indicate the residual number of times of executable printing, which a user judges so far from his experience and perception, on the occasion when the residual quantity of ink decreases in an ink jet printer, for instance. ;SOLUTION: On reception of an instruction to execute a typical printing job which is accompanied by an instruction to measure the consumption of ink, a discharge history control part 17 measures and compares the residual quantities of ink before and after execution of the printing job, in a printer control part 10, and based on the results, it calculates and records the consumption of ink for the typical printing job. On reception of an instruction to indicate the number of executable printing jobs, thereafter, it measures the residual quantity of ink again, divides the measured value by the recorded consumption of ink for the typical printing job to determine the number of times of the executable typical printing jobs and makes it indicated.;COPYRIGHT: (C)2001,JPO