2-12 Phaser 4500/4510 Service Manual
Theory of Operation
Paper Tray Functional Assemblies
Left-  and right-side paper guide assemblies The left and right paper guides 
adjust to fit different paper widths. The guides hold the paper in position in the 
tray.
Bottom plate assembly The bottom plate assembly is pushed up by the bottom 
lift spring. The bottom plate is released by unlocking the bottom lock lever and 
stopper gear. When the bottom plate assembly is pushed up, the supplied 
paper contacts the nudger roller.
Bottom lock lever and gear stopper These are at the rear of the tray (i.e., the 
front end in the direction of travel of paper). How these components work is 
explained in “Paper Lift Mechanism” on page 2-14.
1.Left-side paper guide assembly 5.Right-side paper guide assembly
2.Bottom plate assembly 6.Extension lock
3.Bottom lock lever 7.End guide
4.Gear stopper
s4500-021
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