发明名称 |
Image forming apparatus which performs a cleaning operation to remove a film deposited in a motor |
摘要 |
An image forming apparatus includes: a conveyance roller configured to convey recording sheets; a brush motor configured to drive the conveyance roller to rotate; and a control unit configured to control a rotational speed of the brush motor, wherein while the conveyance roller conveys a recording sheet, (i) the control unit applies voltage to an outer circumferential surface of a commutator of the brush motor to drive the brush motor to rotate by a predetermined rotation amount, so as to perform a cleaning operation to remove a film deposited on the outer circumferential surface, and (ii) the control unit reduces the rotational speed of the brush motor while not performing the cleaning operation, so as to correct a conveyance distance of the recording sheet. |
申请公布号 |
US9056493(B2) |
申请公布日期 |
2015.06.16 |
申请号 |
US201313865860 |
申请日期 |
2013.04.18 |
申请人 |
KONICA MINOLTA, INC. |
发明人 |
Kobayashi Yuji;Kato Takaki;Tachibana Yuta;Yamaguchi Hiroshi;Teshima Satoshi |
分类号 |
G03G15/00;B41J13/00;B65H5/06;B41J29/17;B41J29/38 |
主分类号 |
G03G15/00 |
代理机构 |
Buchanan Ingersoll & Rooney PC |
代理人 |
Buchanan Ingersoll & Rooney PC |
主权项 |
1. An image forming apparatus comprising:
a conveyance roller configured to convey recording sheets; a brush motor configured to drive the conveyance roller to rotate; and a control unit configured to control a rotational speed of the brush motor, wherein while the conveyance roller conveys a recording sheet, (i) the control unit applies voltage to an outer circumferential surface of a commutator of the brush motor to drive the brush motor to rotate by a predetermined rotation amount, so as to perform a cleaning operation to remove a film deposited on the outer circumferential surface, and (ii) the control unit reduces the rotational speed of the brush motor while not performing the cleaning operation, so as to correct a conveyance distance of the recording sheet. |
地址 |
Chiyoda-Ku, Tokyo JP |