1 Introduction 1-2 Troubleshooting System Error Codes 1-2 Performing a Service Test on a Failed Assembly 1-2 Performing the Necessary Service Calibrations 1-3 Solving Image Quality Problems 1-3 Front-Panel LEDs Flash Briefly at Power ON & Nothing Else Happens 1-3 The Printer does not Power ON 1-4 ALL the Front-Panel LEDs are Lit but Nothing Else Happens 1-4 One of the Print Quality LEDs on the Front Panel is Lit (and nothing else) and the "SELF TEST..." Message Remains on the Front Panel 1-5 The Printer Continuously Rejects Printheads 1-5 Cover Sensors are not Working 1-5 The Line Sensor has Problems Detecting Media 1-5 Troubleshooting Media Jams/Printhead Crashes 1-6 Troubleshooting Shutdowns 1-6 Problems with the Vacuum Fan 1-8 Vacuum suction much lower at high altitudes 1-8 Bin marks on prints done on HP High Gloss media 1-8 Printhead Crashes/Smears on High Density Prints Using Coated Media 1-9 Color changes when stacking prints done on HP High Gloss Media 1-9 HP-GL/2 color differences in different HP DesignJet Printers 1-10 Scratches on prints done on NTP, Vellum and HP High Gloss media 1-10 Banding at variable extreme environmental conditions 1-10 Banding due to Ink Cartridge replacement while printing 1-11 Long term bleed and hue shift on HP High Gloss media 1-11 Lower image gloss directly after printing on HP High Gloss Photo Paper 1-11 Cut Sheet rice paper loading failure 1-12 34" Rice Paper not supported 1-11 Worm marks on HP Coated media with light area fills 1-12 Solving Media-Handling Problems 1-12 How to Navigate through the Front-Panel Menu 1-13 Service Configuration Print 1-17 4