PREFACEThis Service Manual contains basic information required for after-sales service of PaperHandling Controller PH-72. This information is vital to the service technician in maintainingthe high quality and performance of the controller.This manual consists of the following chapters:Chapter 1: Product informationFeatures, specifications and basic operationChapter 2: The Mechanical SystemInstallation procedure and malfunction troubleshootingChapter 3: Parts CatalogPaper handling controller PCB assemblyAppendix: Paper handling controller circuit diagramInformation in this manual is subject to change as the product is improved or redesigned.All relevant information in such cases will be supplied in Service Information Bulletins.A thorough understanding of this controller, based on information in this Manual and ServiceInformation Bulletins is required for maintaining its performance and for locating and repairingmalfunctions.