BenutzerhandbuchInhaltsverzeichnisContents9Ch. 1 General Description24Introduction24Overview26Related Publications26Electrostatic Discharge (ESD) Sensitivity26Warnings, Cautions and Notes27Printer Specifications28Contents of this Service Manual29Technical Support31Ch. 2 Theory of Operation32Introduction32NovaJet 800 Series Printers General Block Diagram33Paper (Media) Axis Drive35The Carriage Axis Drive36Media Feed and Take-Up System37Main PWA (Printed Wiring Assembly)38Main PWA LED Status Indicators39Microprocessor (CPU)39Gate Array40Digital Signal Processor (DSP)40Memory Circuits41Flash EEPROM41SDRAM42Serial EEPROM42Stepper Motor Controller42Servo Motor Controller44Interface Circuits: Serial & Parallel46Carriage Assembly Circuits47Control Panel49Power Supply49Thermal Dryer Assembly50Sensor Status Menu51Beeper and Fans52Ch. 3 Maintenance53Introduction53Scheduled Maintenance53Cleaning Procedures54External Cleaning54Slide Shaft Cleaning54Service Station Cleaning55Linear Encoder Strip Cleaning56Trailing Cables Cleaning57Platen/Vacuum Hole Cleaning57Cartridge Dimples Cleaning58Flex Cable Contact Cleaning59Clean and Inspect Stepper Motor Gears60Clean and Inspect Main PWA60Clean and Inspect Carriage Assembly60Dryer Cleaning61Reseat Connectors on Main PWA and Carriage Boards61Replace Trailing Cables64Replace Carriage Cover/Carriage Bushings65Servo Motor Winding Resistance Check66Stepper Motor Winding Resistance Check67Power Feed and Take-Up Motor Winding Resistance Check68Banding: Hardware vs Software68Banding Differences69Banding Causes & Quick Analysis71Horizontal Banding Problems71Vertical Banding Problems74Line Quality Problems (Overspray)75Alignments/Adjustments76Slide Shaft Profile Adjustment76Head Height Alignment Procedure79Color Calibration83Deadband Alignments86Color Deadband Alignment89Paper Axis Calibration91Diagnostics Menu92Firmware Download/Upgrading for the PC95Firmware Download/Upgrading for the MAC96Internal Cabling and Signal Flow Diagrams97Ch. 4 Troubleshooting100Introduction100Print Quality Issues118Cartridge Misfires (Intermittent Banding)118Failure Analysis - Print Misfires119Common Misfire Problems124Clearing Cartridge Misfires125Multiple Cartridge Failures125Microbanding127Banding Differences129Horizontal Banding130Vertical Banding142Line Quality Problems (Overspray)145Cartridge Warranty146Cartridge Maintenance & Testing147General Print Misfire Analysis148Common Misfire Problems148Cartridge Misfires149Multiple Cartridge Failures149Ink Starvation150Inkjet Nozzle Problems151Ink Starvation151Ink System Pressure Theory152Failure Analysis:153Ink Dropout156Color Test Problems159Failure Analysis - Color Test Incorrect:160“Unrecognized Cartridge” Error Message162Unrecognized Cartridge Failure Analysis Steps:162Paper Sensor Error164Initialization Failure165Loading Media Failure166Failure Analysis:166Encoder Sensor Error167Initialization Failure168Carriage Tracking Failure168AutoLoad Paper Sensor Error168Carriage Axis Error169Carriage Axis Failure169Carriage Test170Failure Analysis171Initialization Failure174Failure Analysis:174Media Sensor Reference Points Not Initialized178Hardware Failures/Diagnostic Tests178Quick Troubleshooting List178Inconsistent Operations179Functional Problems179Noise in Image179ESD Problems180Dryer Failure/Sensor Error180Failure Analysis183Intermittent Problems/Continuity185Failure Analysis185Reinitializing the Printer194Printer Hesitation/Networking Problems195Data Starvation195Compute Bound196Miscellaneous Notes197Network Connectivity197Parallel Port Test199Other port testing procedures199Firmware Downloading Procedures200NJ850 Printer200NJ880 Printer201Expanded Instructions for Firmware Download/Upgrade202Media Handling System Failure203Failure Analysis204Ch. 5 Assembly\Disassembly205Introduction205Remove the Left, Top, and Right Covers206Install the Left, Top, and Right Covers209Remove the E-Connect Network Assembly210Install the E-Connect Network Assembly211Remove the Keypad and Display212Install the Keypad and Display213Remove Memory Module214Install Memory Module215Remove the Main Printed Wiring Assembly (PWA)215Install the Main Printed Wiring Assembly (PWA)218Remove Power Supply, Cooling Fan, and AC Entry Module219Install the Power Supply, Cooling Fan, and AC Entry Module221Remove Servo Motor222Install Servo Motor224Remove the Ink Delivery System225Install the Ink Delivery System227Remove the Carriage Assembly, Carriage Belt, and the Frame Tensioner227Install the Carriage Assembly, Carriage Belt, and the Frame Tensioner232Remove the Carriage PWA235Install the Carriage PWA237Remove the Paper Sensor or the Encoder Sensor238Install the Paper Sensor or the Encoder Sensor240Replacing the Floating Carriage Cover Bushings241Replacing the Carriage Bushings243Remove the Service Station244Install the Service Station245Remove the Trailing Cable Assembly245Install the Trailing Cable Assembly246Remove the Stabilizer Bracket and Encoder Strip247Install the Stabilizer Bracket and Encoder Strip248Remove the Y-Arm Assembly, Pinch Rollers, Slide Shaft, and AutoLoad Sensor248Install the Y-Arm Assembly, Pinch Rollers, Slide Shaft, and AutoLoad Sensor251Remove the Gap Sensor (NovaJet 880 only)252Remove the Lower Roller Assembly, Stepper Motor and Vacuum Fan (NovaJet 850)252Install the Lower Roller Assembly, Stepper Motor and Vacuum Fan (NovaJet 850)255Remove the Lower Roller Assembly, Stepper Motor and Vacuum Fan (NovaJet 880)258Lower Roller Installation Tip (NovaJet 880)261Y-Arm Assembly Installation Tip (NovaJet 880)261Remove the Media Take-Up and Feed Sensor Brackets and Sensors262Install the Media Take-Up and Feed Sensor Brackets and Sensors263Remove the Media Take-Up and Feed Motors264Install the Media Take-Up and Feed Motors264Remove the Thermal Dryer Assembly265Install the Thermal Dryer Assembly266Remove the Thermal Dryer Right Endcap Assembly266Install the Thermal Dryer Right Endcap Assembly268Ch. 6 Parts List270Index287Größe: 7,37 MBSeiten: 288Language: EnglishHandbuch öffnen
