HP 450c Service Manual - Page 37

Service Tests Which Service Test to Perform Use the following table as a rough guide: Assembly/Feature Bail system Carriage Carriage motor and drive system (including belt, pulley and slider rod) Cartridge identification Cartridge nozzles Communication between computer and Printer Cover sensor DRAM SIMM EEROM Electronics module Encoder strip Front-panel keys and LEDs Media-axis encoder and cable Media motor and drive system (including drive roller and overdrive) Media sensor Pinch-arm sensor Optical sensor (on carriage) ROM Service station Trailing cable Tested by ... Bail cycle test, Bench run, Modular Test Carriage test, Electrical test, Modular test Carriage-axis test, Bail cycle test, Modular test, Bench run Carriage test, Modular test Carriage test, Modular test Service monitor Sensors test, Modular test Electrical test, Power-on tests, Bench run Electrical test, Power-on tests, Bench run Electrical test, Power-on tests, Servo/Encoder test, Sensors test, Bail cycle test, Front-panel test, Media-axis test, Carriage test, Carriage-axis test, Bench run, Modular test Carriage-axis test, Servo/Encoder test, Modular test, Bench run Front-panel test, Modular test Servo/Encoder test, Media-axis test, Modular test, Bench run Media-axis test, Modular test, Bench run Sensors test, Modular test Sensors test, Modular test Carriage test, Modular test Electrical test, Power-on tests, Bench run Bail cycle test Electrical test, Power-on tests, Bench run Service Tests HP DesignJet 430, 450C and 455CA Printers 4-3