Recording sheet conveying system of pressure fixing type electrostatic printing apparatus

A recording sheet conveying system of an electrostatic printing apparatus of the pressure fixing type comprising:

• developing means for forming a toner image on a recording sheet;
• conveyor means for conveying the recording sheet having the toner image formed thereon;
• pressure fixing roller means for fixing by pressure the toner image on the recording sheet as it passes through a nip thereof;
• first tension imparting means located anterior to said developing means for imparting to the recording sheet a tension oriented in a direction perpendicular to the direction of travel of the recording sheet;
• second tension imparting means for imparting to the recording sheet a tension oriented in the direction of travel of the recording sheet;
• and
• regulating means located immediately anterior to said pressure fixing roller means in a position displaced from a plane in which said recording sheet is conveyed to alter the direction in which the recording sheet is conveyed, said regulating means being disposed such that its length is parallel to the axis of each roller of said pressure fixing roller means in a vertical plane and parallel to a line of contact of rollers in said nip of said fixing roller means in a horizontal plane, said line of contact intersecting the axis of the rollers of the fixing roller means.