Chapter 55-7The motor driver on the interface PCB controls the rotation (activation/deactivation) of the scanner motor and its direction and speed of rotation according to thesignals from the CPU.F-5-13- Moving the Scanner in Reverse After an Image ScanAfter an image scan, the No. 1 mirror base is moved in reverse to shading position at 234 mm/sec regardless of the selected color mode.- Moving the Scanner Forward for an Image ScanWhen making an image scan, the No. 1 mirror base unit is moved by controlling the motor as follows:F-5-14The machine uses the following scanning speeds to suit different modes;T-5-55.3.2 Enlargement/Reduction5.3.2.1 Changing the Magnification in Main Scanning Direction 0012-9674imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+For main scanning direction in both copyboard and ADF modes, the image is read at 100%, and the magnification is varied by the main controller block.5.3.2.2 Changing the Magnification in Sub Scanning Direction 0012-9675imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+For sub scanning direction in both copyboard and ADF modes, the image is read at 100%, and the magnification is changed by the main controller block.In SEND mode, the reading size is switched between 100% and 50% depending on the selected resolution.5.3.3 Controlling the Scanning Lamp5.3.3.1 Overview 0012-9676imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+The scanning lamp is controlled for the following, with associated control mechanisms operating as follows:1. Turning On and Off the Scanning LampThe scanning lamp is turned on or off by the drive signal (XE-ON) generated by the CPU of the reader controller PCB. When the signal is generated, the inverterFunction Mode Scanning speedCopier black-and-white 234 mm/secfull-color 234 mm/secSEND black-and-white 468 mm/secfull-color 234 mm/secReader controllerPCBMotordriverInterface PCB+24V/15VJ306AA*BB*CPU 123465J308J307J202J203ScannermotorM501[1]1 Scanner motor control signalStart positionAccelerationImage leading edgeNormal speedImage trailing edgeDecelerationStopShiftspeedShift length[1] [2] [3] [4]1. Acceleration Zone: accelerates to suit the selected mode2. Approach Zone: moves for speed stabilization.3. Image Read Zone: reads the image at a specific speed.(if black-and-white/SEND mode, twice as fast as in full-color mode)4. Deceleration Zone: past the image trailing edge, immediately decelerates and stops.
