Patent ID: 7645019
Filing Date: 2010-01-12
Classification: B41J

Abstract:
1. An image forming apparatus, comprising: an ink containing coloring material; an ink deposition device which deposits the ink containing coloring material onto a region of a recording medium; a treatment liquid that insolubilizes the coloring material; a treatment liquid deposition device which deposits the treatment liquid that insolubilizes the coloring material onto the recording medium; the region of the recording medium including a surface area for a plurality of adjacent ink droplets; and a control device divides the recording medium into a plurality of sectors, including a low-density region, a high-density region, and a medium-density region between the low-density region and the high-density region, in accordance with the volume per prescribed surface area of the ink deposited on the recording medium; and the control device controls the treatment liquid deposition device in such a manner that volume of the treatment liquid deposited in the medium-density region is less than the volume of the treatment liquid deposited in the low-density region, and the volume of the treatment liquid deposited in the high-density region is greater than the volume of the treatment liquid deposited in the medium-density region and less than the volume of the treatment liquid deposited in the low-density region.