Table of Contents Table of Contents 1 Troubleshooting 1-1 System Error Codes 2-1 Ink Supplies Troubleshooting 3-1 Service Tests and Utilities 4-1 Service Calibrations 5-1 Print Quality 6-1 Parts and Diagrams 7-1 Removal and Installation 8-1 Preventive Maintenance 9-1 hp designjet 4000 series printers service manual 3