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Theory guide ? EASTMAN KODAK COMPANY HEALTH GROUP TheoryGuide Production Health Group ExternalAndInternal Publication No TG - AUG Con ?dential Restricted Information THEORY GUIDE for the Kodak DirectView CR SYSTEM Service Code Important Quali ?ed service

? EASTMAN KODAK COMPANY HEALTH GROUP TheoryGuide Production Health Group ExternalAndInternal Publication No TG - AUG Con ?dential Restricted Information THEORY GUIDE for the Kodak DirectView CR SYSTEM Service Code Important Quali ?ed service personnel must repair this equipment H AC C AUG TG - Page of THEORY GUIDE PLEASE NOTE The information contained herein is based on the experience and knowledge relating to the subject matter gained by Eastman Kodak Company prior to publication No patent license is granted by this information Eastman Kodak Company reserves the right to change this information without notice and makes no warranty express or implied with respect to this information Kodak shall not be liable for any loss or damage including consequential or special damages resulting from any use of this information even if loss or damage is caused by Kodak ? s negligence or other fault This equipment includes parts and assemblies sensitive to damage from electrostatic discharge Use caution to prevent damage during all service procedures Table of Contents Description Page Equipment Description Features and Functions Main Subsystems Radiography Theory Comparison of Film Screen and Computed Radiography CR Overview of CR Technology Operations Exposing the STORAGE PHOSPHOR SCREEN Stimulating the PHOSPHOR Changing Light Energy to an Analog Signal Changing Analog Signals to Digital Signals Processing the Digital Image Sequence of Operation Overview of Work ow Using the CR SYSTEM Before Loading the CASSETTE Loading the CASSETTE Fastening the SCREEN Preparing to Scan Scanning the SCREEN Erasing the SCREEN Inserting the PLATE back into the CASSETTE SHELL Removing the CASSETTE Scanning the Next CASSETTE Error Conditions STORAGE PHOSPHOR CASSETTE Overview C AUG TG - Page of THEORY GUIDE Size and Resolution of SCREENS Fast Scan Slow Scan Directions Image Matrix Size Reading the BAR CODE LABEL of the CASSETTE Cassette Handling Overview Cassette Transport Overview INPUT and OUTPUT SLOTS BELTS CASSETTE ALIGNMENT CAMS LOAD BARS UNLOAD BARS INTERNAL BAR CODE READER B Sequence of Operation Plate Handling Overview CASSETTE ELEVATOR CASSETTE CLAMPS DYNAMIC FRAME LOCK EXTRACTION BAR DUPLEX CAM AY Scan Erase Overview PLATE POSITIONING AY LEAD SCREW EXTRACTION BAR EXTRACTION BAR HOME SENSOR S PLATE PRESENT SENSOR S SLOW SCAN MOTOR ENCODER ERASE AY LAMP CURRENT SENSORS CS - CS Imaging Overview LASER GALVO COLLECTOR and PHOTOMULTIPLIER TUBE PMT Overview Operation of the COLLECTOR and the PMTs Operation of the PMT DAS BOARD A C AUG TG - Page of THEORY GUIDE MCPU BOARD A Sequence of operation Scanning the SCREEN - Slow Scan Fast Scan Obtaining the Image Data Processing the Data Processing the Image Logic and Control Overview Operator Input Components BOARDS Distribution of Images to the Network Power Distribution Overview POWER SUPPLY Power Distribution INTERLOCK UNINTERRUPTIBLE POWER SUPPLY UPS Logs Overview Error and Activity Log Error Frequency Log Actuation Log Glossary C AUG TG - Page of THEORY GUIDE Equipment Description Section Equipment Description Features and Functions The Kodak DirectView CR SYSTEM is a LASER SCANNER that reads a latent image made on a STORAGE PHOSPHOR SCREEN during