| 摘要 |
When a sheet jams in an image forming machine with a detachable unit having at least the image carrier device, it is necessary to detach the unit to remove the sheet when the image carrier device is charged with electric charge. When the unit is detached and re-attached, spark discharging may occur inducing noise upon the contact of an electrically conductive shaft of the image carrier device to a ground conductor. The present invention prevents the occurrence of such a problem. Guide grooves are provided to the base frames of the image forming machine to guide both end parts of the electrically conductive shaft of the image carrier device to position the unit in place, and a charge eliminating member is provided upstream from the position for allowing the electric charge accumulated on the image carrier device to be corona-discharged by way of the conductive shaft to remove the accumulated charge.
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