Patent ID: 8157368
Filing Date: 2012-04-17
Classification: B41J

Abstract:
1. An ink jet recording device comprising: a recording head configured to eject ink droplets onto a recording medium; a conveying member configured to convey the recording medium in a conveying direction, the recording medium having a leading edge and a trailing edge in the conveying direction; a platen disposed in confrontation with the recording head to support the recording medium while keeping a predetermined distance from the recording head; a supporting member disposed in the platen to slide in the conveying direction while supporting the recording medium; and a driving member configured to drive the supporting member to start sliding in the conveying direction at a starting timing corresponding to a position of at least one of the leading edge and the trailing edge, wherein the supporting member has a leading end and a trailing end in the conveying direction, and the recording medium has a leading edge area around the leading edge and a trailing edge area around the trailing edge, wherein the driving member drives the supporting member to slide so that the leading end of the supporting member is positioned at an upstream of the leading edge of the recording medium in the conveying direction when a borderless recording is performed for the leading edge area, and so that the trailing end of the supporting member is positioned at downstream of the leading edge of the recording medium in the conveying direction when a borderless recording is performed for the trailing edge area, and wherein the platen includes a first supporting part and a second supporting part, each being disposed in confrontation with the recording head, the second supporting part being disposed at a downstream of the first supporting part in the conveying direction and opposed to the first supporting part in the conveying direction, the platen being formed with a groove extending in a main scanning direction orthogonal to the conveying direction at a position between the first supporting part and the second supporting part, the groove having a printing region over which the recording head can eject ink droplets, the supporting member sliding in the groove.