CHAPTER 4 IMAGE FORMATION SYSTEMCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)4-26Figure 4-122Figure 4-123ReflectingplateRear sideblanking lampLens shift detecting shaftFront sideblanking lampReflectingplate(front) A BPhotosensitive drumNon-image area in Reduce modeA: Position of the side blanking lamp in Direct and Reduce modeB: Position of the side blanking lamp in Reduce modeB AH. Controlling the Side Blanking Mechanism1. OutlineThe machine is equipped with a side blanking lamp at the front and the rear used to preventadhesion of excess toner when making reduced copies.2. OperationsTo blank out the non-image area in reduce mode, the side blanking lamp is moved in relation tothe distance over which the lens moves as detected by the lens shift detecting shaft.
