| 摘要 |
PROBLEM TO BE SOLVED: To prevent the overlapped orders of an article of consumption when exhaustion of toner is detected. SOLUTION: When the toner cassette is replaced (ST2), a counter of the number of printing sheets 4a is reset (ST3), the increment of the counter of the number of printing sheets is made for each printing processing (ST5), and after printing operation (ST7), the exhaustion of toner is judged (ST8). In the case of the exhaustion of toner, it is judged whether the number of printing sheets is below a set value (ST10). In the case that the number of printing sheets is equal to or more than the set value, the order sheet of articles of consumption is printed out (ST11). When the number of printing sheets is not beyond the set value, the order sheet of articles of consumption is not printed out. |
