HP Designjet 2800/3800cp Service Manual - Page 88

Introduction This chapter explains how to use the built-in Service Tests (Diagnostics) and what to do if the tests fail. If possible, always perform a Service Test on the component that you are about to replace, just to make sure that is the component that has failed. If the test on that component passes, there is no need to replace it. Diagnostics - Self Test Initialization Sequences Whenever the the Printer is switched on, it automatically performs a series of internal self tests and mechanical initialization sequences. If the Printer is switched ON in Service Mode, the front-panel display will show a code next to the message "Initializing". These codes refer to the part which the printer is testing at that moment. If any of these parts fail, a system error will appear and you should consult the System Error Codes ' Chapter 2. Code b c d e f g h i j k l A B C I Parts Tested System Error if failed Sensors and X-Encoder Fuse 010023 Interconnect Boards detection 010030 ADC in the Main PCA 010036 Fans 010032 DC Motor Driver ASIC 010033 DC Motors detection 010034 Stepper Motors detection 010035 ADC in the Carriage PCA 010037 Printhead Voltage in Main PCA 010038 Printhead Voltage in Carriage PCA 010039 Printhead Primitive Driver ASIC 010031 RAM SIMM 010021 Flash SIMM 010020 Swath RAM 010022 Hard Disk Drive 08xxxx 4-2 HP DesignJet CP Series Printers Service Tests