Image forming apparatus and image forming method
AssigneeFujitsu Limited
InventorMasato Matsuduki
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Abstract
In an image forming apparatus that forms a toner image on a continuous medium, the tension force applied to the continuous medium by the image forming drum is controlled within a proper range. The apparatus comprises a toner image forming unit forms a toner image on a rotating image forming drum, a transfer unit that transfers, to the continuous medium, the toner image on the image forming drum by a transfer current, and a control unit that monitors the tension force applied to the continuous medium by the image forming drum and controls the transfer current at the transfer area, based on the results of this monitoring. Alternatively, the apparatus increases the minimum printing ratio by adding additional data to the print data.
Claims14
An image forming apparatus that forms a toner image on a continuous medium, comprising:
- feeding means for feeding said continuous medium;
- toner image forming means for forming a toner image on a rotating image forming drum;
- transfer means for transferring, to said continuous medium, the toner image on said image forming drum by causing an electrostatic force to act on said image forming drum and said continuous medium at a transfer position via a transfer current;
- and
- control means for monitoring a tension force applied by said image forming drum on said continuous medium and controlling a value of said transfer current of said transfer means in accordance with the results of said monitoring.
An image forming method for forming a toner image on a continuous medium, comprising the steps of:
- forming a toner image on a rotating image forming drum:
- transferring, to said continuous medium, the toner image on said rotating image forming drum by causing an electrostatic force to act on said image forming drum and said continuous medium, which is being conveyed, at a transfer position via a transfer current;
- and
- monitoring a tension force applied by said image forming drum on said continuous medium and controlling the value of said transfer current in accordance with the results of said monitoring.
Dependencies are inferred from the claim text.