Patent ID: 7905590

Claim:
A liquid-ejection-type image forming apparatus, comprising: a recording head configured to print by ejecting liquid droplets; an electrostatic-absorption belt configured to convey printing paper in a sheet conveyance direction for the recording head to eject the liquid droplets onto the conveyed printing paper; an evacuation guide plate positioned upstream of the recording head in the sheet conveyance direction; and a pair of grip rollers configured to evacuate the printing paper temporally from an absorption surface of the electrostatic-absorption belt, the pair of grip rollers being disposed at an end of the evacuation guide plate, wherein the liquid-ejection-type image forming apparatus performs a cockling-preventing mode operation which stops printing operation, separates the printing paper from the electrostatic-absorption belt, and restarts the printing operation after the evacuated printing paper is placed again on and absorbed by the electrostatic-absorption belt, and wherein when the printing operation stops in the cockling-preventing mode operation, the electrostatic-absorption belt conveys the printing paper in an evacuation direction, opposite to the sheet conveyance direction, to the pair of grip rollers, the pair of grip rollers evacuate the printing paper temporally from the absorption surface of the electrostatic-absorption belt and conveys the printing sheet in the evacuation direction onto the evacuation guide plate, and then the grip rollers convey the printing paper on the evacuation guide plate in the sheet conveyance direction to place the printing sheet again onto the electrostatic-absorption belt, and the printing operation is restarted after the printing paper is again on and absorbed by the electrostatic-absorption belt.