摘要:
The present invention relates to an image forming apparatus comprising a main image forming mechanism (20) for forming a toner image on a recording sheet (40) based on image information and an auxiliary image forming mechanism (30) for forming an auxiliary image on a recording sheet (40) on which the main image is formed. The auxiliary image forming mechanism (30) supplies charged toner to a substrate provided with a plurality of toner passages holes and selectively forms electric potential which allow or does not allow the charged toner to pass through each toner passage hole by a pair of electrodes. A predetermined image is formed with the toner passed through the toner passage holes.
摘要:
A cleaning unit includes a plurality of rotatable fur brushes (4a, b) which are arranged so as to adjoin in a downstream direction of a transferring process on a surface of a photoreceptor drum (1) and whose tips are in contact with the surface for removing residual toner on the surface, recovering rollers (5a, b, c) arranged so as to be in contact with the tip of each of the fur brushes (4a, b) for removing toner adhering to the fur brushes, and a charger (6a-d) for charging the fur brushes and the recovering rollers, wherein the fur brush arranged at the downmost stream side rotates at a lower speed compared to another fur brush arranged in the upstream side thereof, wherein a discharger (7) may further be provided for decreasing the charge of the residual toner, and wherein the charger charges the downmost stream side fur brush reversely to the uppermost stream side fur brush.
摘要:
A cleaning unit includes a plurality of rotatable fur brushes (4a, b) which are arranged so as to adjoin in a downstream direction of a transferring process on a surface of a photoreceptor drum (1) and whose tips are in contact with the surface for removing residual toner on the surface, recovering rollers (5a, b, c) arranged so as to be in contact with the tip of each of the fur brushes (4a, b) for removing toner adhering to the fur brushes, and a charger (6a-d) for charging the fur brushes and the recovering rollers, wherein the fur brush arranged at the downmost stream side rotates at a lower speed compared to another fur brush arranged in the upstream side thereof, wherein a discharger (7) may further be provided for decreasing the charge of the residual toner, and wherein the charger charges the downmost stream side fur brush reversely to the uppermost stream side fur brush.
摘要:
The present invention relates to an image forming apparatus comprising a main image forming mechanism (20) for forming a toner image on a recording sheet (40) based on image information and an auxiliary image forming mechanism (30) for forming an auxiliary image on a recording sheet (40) on which the main image is formed. The auxiliary image forming mechanism (30) supplies charged toner to a substrate provided with a plurality of toner passages holes and selectively forms electric potential which allow or does not allow the charged toner to pass through each toner passage hole by a pair of electrodes. A predetermined image is formed with the toner passed through the toner passage holes.