Craden Peripherals DP8 technical manual

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Contents R I P H E R a L S R P O R a T I O N RevisionAirport HIGHWAY, PENNSAUKEN, NJ Record of Changes Pages AffectedALL DP8 & DP9 Technical Manual Table of Contents OperationMaintenance Theory of OperationTroubleshooting Recommended Spare Parts Recommended Service ToolsMajor Assembly Illustrations & Parts Lists Interface Document CharacteristicsPhysical Characteristics Environment & StandardsInstallation Procedure Reshipment Operation Ribbon Cartridge LoadingKeypad Operation Display OperationKeypad & Display Panel Configuration Configuration Category PressDocument Insertion Printer Parameters DisplayRemarks Communication Parameters Override 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 DC3Configuration Commands Status and Keypad CommandsDP XE DJ KB BZ BA Meaning Installing Craden Drivers on Windows 95 orAscii DriversInstalling Craden Drivers on Windows NT, 2000 or XP Installing Craden USB 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 KeypadDefective Sensor No Document MotionNo Carriage Motion Symptom Condition Remedy No Print or Light PrintPrint 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 Service Tools Recommended Spare PartsDescription PART# Printer Diagram DP8 & DP9 Assembly Tree DWG REV. CAll assemblies not ending in X are used both on DP8 and DP9 Page Page Page Page Page Page Page