Canon Paper Folding Unit-J1 Service Manual

Contents

Canon Paper Folding Unit-J1 Service Manual Manual pdf 3 page image

Symbols Explanation Symbols Explanation1xDisconnect the connector. Connect the power cable.1xConnect the connector. Disconnect the power cable.1xRemove the cable/wire from thecable guide or wire saddle.Turn on the power.1xInstall the cable/wire to the cableguide or wire saddle.Turn off the power.1xRemove the screw.1x Loosen the screw.1xInstall the screw.1x Tighten the screw.Cleaning is needed. Measurement is needed.The following rules apply throughout this Service Manual:1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical andmechanical systems with reference to the timing of operation.In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol, the arrowindicates the direction of the electric signal.The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the delivery unitdoor, which results in supplying the machine with power.2. In the digital circuits, '1' is used to indicate that the voltage level of a given signal is "High", while '0' is used to indicate "Low".(The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in "DRMD*" indicates that the DRMDsignal goes on when '0'.In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the operationsof the microprocessors used in the machines are not discussed: they are explained in terms of from sensors to the input ofthe DC controller PCB and from the output of the DC controller PCB to the loads.The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, andmajor changes will be communicated in the form of Service Information bulletins.All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant ServiceInformation bulletins and be able to identify and isolate faults in the machine.Introduction