| 摘要 |
PROBLEM TO BE SOLVED: To properly notify a user of the exchange period of a cleaning brush by notifying the user, when the cumulative time of the drive of the cleaning brush exceeds a previously set reference time. SOLUTION: An electrophotographic device shaft to a printable state with a print emabling signal 11. The cleaning brush is driven with a cleaning brush driving signal 12, to update the value of a cleaning brush driving time counter 14. The feeding of a sheet of paper is started with a feeding signal 13, to start printing and when printed image data piles up, the feeding of the paper is stopped. While the cleaning brush is driven, a cleaning brush driving time counting function works, regardless of intermittent printing, so that the amount of the actual use of the cleaning brush is measured. When the counter 14 exceeds a previously set cleaning brush exchange notice time T, notice that the exchange of the cleaning brush is urged is executed with a cleaning brush exchange notice signal 15. |
