CHAPTER 2 NEW FUNCTIONS2-6 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 20012.2 Changes in the Original Exposure SystemT02-202-01Changes from GP605Change in scanning speed at 100% copying:450 mm/secChange in reproduction range: 25% to 400% (in combi-nation with digital processing)Addition of a scanner motor fanAddition of transformer power PCBLocation of the reader controller where the image pro-cessor PCB was foundConnection (inside the machine) of the reader controllerunit and the controller by a communication cableAddition of a dust detection functionAddition of a detection function (open/closed) to theADFPurposeTo support higher speedTo support higher speedTo prevent overheating of the scanner motorTo stabilize the inverter power supplyTo support new PCB compositionTo prevent image faultsTo prevent wrong detectionRemarksIn GP605 260 mm/secReference2.3 Enlargement/ReductionMethod2.3 Enlargement/ReductionMethod2.4 Preventing Overheating of theScanner Motor2.6 Stabilizing the ScanningLamp2.5 Arrangement of PCBs2.8 Detecting Dust in StreamReading Mode2.7 Detecting the State (open/closed) of the ADFUnit/locationReading methodReader unitReader controllerADF
