COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 3EXPOSURE SYSTEMThis chapter discusses the principles of operation used for the machine's lens driveunit and scanner drive unit. It also explains the timing at which these drive units areoperated, and shows how they may be disassembled/assmbled and adjusted.I. OPERATIONS ..............................3-1A. Outline ...................................3-1B. Varying the ReproductionRatio ......................................3-2C. Lens Drive System ................3-3D. Scanner Drive System ..........3-4II. EXPOSURE SYSTEM .................3-9A. Controlling the ScanningLamp .....................................3-9III. DISASSEMBLY/ASSEMBLY ..... 3-13A. Scanner Drive Assembly .... 3-14B. Lens Drive Assembly ......... 3-32C. Exposure System ............... 3-38
