Patent ID: 9588474
Date: 2017-03-07
CPC Classifications: B65H,G03G

Claim:
1. An image forming apparatus, comprising: a sheet stacking portion on which a sheet is stacked; a feed portion feeding the sheet stacked on the sheet stacking portion; a transfer portion transferring a toner image onto the sheet fed by the feed portion by a transfer bias applied to the transfer portion; a first conductive member electrically connected with a grounding portion; a second conductive member provided contactably with the first conductive member and configured to electrically connect with the sheet stacking portion; a switching portion bringing the first conductive member into contact with the second conductive member and separating the first conductive member from the second conductive member, switching the sheet stacking portion into a grounded condition in response to contacting the first conductive member with the second conductive member, and switching the sheet stacking portion into an insulated condition in response to separating the first conductive member from the second conductive member; and a control portion controlling the switching portion such that the sheet stacking portion is switched from the grounded condition to the insulated condition every time one stacked sheet is fed.