Processing Tray UnitOutlineThe processing tray unit aligns, shifts, and staples or staples without staples the delivered paper. Then the assist guide and assistclaw deliver the paper onto the delivery tray.The names and functions of the components of the processing tray are as follows:Front Alignment PlateRear Alignment PlatePaddleAssist GuideStopperStapler UnitReturn BeltStaple-freeStaple UnitAssist ClawPaper RetainerDelivery trayPaper RetainerName FunctionPaddle Feeds the paper delivered from the delivery roller to the processing tray unit.Return Belt Feeds the paper to the rear of the processing tray unit and presses the paper against thestopper.Stopper Allows the paper stacked on the processing tray to be pressed against itself to align the paperin the feed direction.Front/Rear Alignment Plate Aligns the paper stacked on the processing tray in the width direction and shifts the paper.Assist Guide The assist guide supports the trailing edge of the paper stacked on the processing tray unit,and the assist claw delivers the paper stack by pushing the stack onto the delivery tray.Assist ClawStapler Unit Staples the sheets.Staple-free Staple Unit Staples sheets without using staples.Paper Retainer Holds down the paper stack in the delivery tray.Stacking OperationThe paper delivered from the delivery roller is stacked on the processing tray and aligned in the feed direction.How paper is delivered from the delivery roller and stacked on the processing tray is described below.2. Technical Explanation18