Wrinkle prevention structure for electrophotographic printer

A wrinkle prevention structure employed in an electrophotographic imaging device using a continuous form recording sheet, said imaging device having a pair of fixing rollers, said recording sheet carrying an unfixed image thereon and being fed to pass through a nip between said pair of fixing rollers to fix the image thereon, said structure comprising a guide member disposed on an upstream side of said pair of fixing rollers with respect to a feeding direction of said recording sheet, said guide member comprising:

• (a) a guide surface extending substantially horizontally for guiding said recording sheet toward the nip between said pair of fixing rollers, said guide surface substantially coinciding with a horizontal plane including the nip between said pair of fixing rollers;
• and
• (b) a tension surface arranged on a downstream side of said guide surface, an upstream side end of said tension surface being connected with a downstream side end of said guide surface, a downstream side end of said tension surface being formed substantially arc-shaped, said tension surface being upwardly inclined with respect to said guide surface, whereby said recording sheet is stretched at least in a width direction thereof before being nipped between said pair of fixing rollers.