Recording material transport device and recording apparatus having the same

A recording apparatus in which a recording material is conveyed by an endless charged belt and a recording head records by ejecting ink on said recording material in a predetermined recording region, comprising:

• detection means for detecting a jam of said recording material in said predetermined recording region;
• and
• cleaning means disposed downstream of said recording region in contact with said conveyor belt to clean a surface of said conveyor belt,
• said conveyor belt including a first layer made of conductive or semiconductive material having a thickness of 5 to 30 .mu.m and a volume resistivity value lower than a predetermined value and discriminable from a recording material by said detection means, a second insulating layer below said first layer and a third conductive layer below said second layer,
• wherein said detection means has a reflective optical detection device at each side of an upstream region and a downstream region, with respect to a movement direction of the belt, of the predetermined recording region, each said detection device receiving a reflected light from said recording material and said conveyor belt,
• wherein said first layer of said conveyor belt has a reflectance different from that of said recording material, and
• wherein said ejection of ink is stopped when a jam is detected by said detection means.

A recording apparatus for performing recording onto a recording material, comprising:

• an ink jet head for jetting ink onto said recording material so as to perform recording;
• detection means for detecting a jam of said recording material;
• conveyor means for conveying said recording material;
• cleaning means for cleaning ink from said conveyor means;
• and
• control means for controlling a cleaning operation by said cleaning means in accordance with an amount of ink jetted from said ink jet head after detection of the jam by said detection means.