Craden Peripherals DP8 technical manual

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Image 58

Contents Revision R I P H E R a L S R P O R a T I O NAirport HIGHWAY, PENNSAUKEN, NJ Pages Affected Record of ChangesALL DP8 & DP9 Technical Manual Table of Contents OperationMaintenance Theory of OperationRecommended Spare Parts Recommended Service Tools TroubleshootingMajor Assembly Illustrations & Parts Lists Interface Document CharacteristicsPhysical Characteristics Environment & StandardsInstallation Procedure Reshipment Operation Ribbon Cartridge LoadingDisplay Operation Keypad OperationKeypad & Display Panel Configuration Category Press ConfigurationDocument Insertion Display Printer ParametersRemarks Override Parameters Communication ParametersDisplay Remarks Service Parameters Diagnostics Power Up DiagnosticsCarriage Fault Enhanced DiagnosticsError Conditions Document Jam Self TestProgramming Command SummaryHex Command AsciiESC L ESC HESC K ESC RPrint Commands Stops double height print Display Commands Low Density Graphics CommandsHigh Density Graphics Commands DC3Status and Keypad Commands Configuration CommandsDP XE DJ KB BZ BA Meaning Installing Craden Drivers on Windows 95 orAscii DriversInstalling Craden USB Drivers on Windows NT, 2000 or XP Installing Craden Drivers on Windows NT, 2000 or XPUsing Printer Resident Device Fonts Funct Writing to the Printer LCD DisplayInterfacing Input Buffer OperationPrinter Pin PC-25 Pin PC-9 Pin Signal Interface Signals & CablesPin Signal Description Problem SolvingNo Document Motion Carriage Fault or No Carriage MotionRollers Run at Power-Up or After Document Ejected No Printing or Light PrintingSwitching Power Supply Carriage Drive AssemblyDocument Drive Assembly Theory of Operation OverviewMicroprocessor System Keypad/Display AssemblyMain Printed Circuit Board Stepper Motor DriversPhase a I0A I1A Phase B I0B I1B Current Stepper Motor Drive Circuit U20 15 aSensors Keypad and Display Refer to Schematic #72135Printhead Drivers Character PrintingI L Printhead Drive CircuitDocument Feed Roller Cleaning MaintenanceLubrication and Cleaning 5.1.1 Lubrication Sensor CleaningCabinet Exterior Cleaning Printhead CleaningDocument Print Area Cleaning Harsh, abrasive cleanersService Parameter SET-UP Procedure Electrical AdjustmentsMechanical Adjustments 5.4.1 Printhead Gap Ribbon Shield Removal / Replacement Ribbon Shield Face Inspection Carriage Shaft Cam and Shaft Rack Carriage Drive Belt TensionDocument Drive Belt Tension Rear Document Roller Spring ForceAuto Alignment Gate Ramp Auto Alignment Gate HeightAuto Alignment Skew Sensor Calibration Replacement ProceduresFront Document Roller Spring Force CabinetKeypad Power Supply PCBSensor PCB DisplayCarriage Drive Belt Document MotorPrinthead Document Drive BeltNo Display TroubleshootingBasic Troubleshooting Procedure Defective KeypadNo Document Motion Defective SensorNo Carriage Motion No Print or Light Print Symptom Condition RemedyPrint Quality Erratic Character Spacing or False Document Jams Missing DotsErratic Document Feed or Mispositioning Interface InoperativeDiagnostic Flowchart Use this flow chart to assist in troubleshootingRecommended Spare Parts Recommended Service ToolsDescription PART# Printer Diagram DWG REV. C DP8 & DP9 Assembly TreeAll assemblies not ending in X are used both on DP8 and DP9 Page Page Page Page Page Page Page