HP Designjet 4000 Service Manual - Page 87

Service Tests and Utilities „ Config GPIO drv_enable. If there is a failure at this point, the Front Panel will display System Error Code 01.0:10. For more information on troubleshooting this error code, refer to Page 2-3. „ Booting up the Carriage. If there is a failure at this point, the Front Panel will display System Error Code 02.1:10. For more information on troubleshooting this error code, refer to Page 2-4. Check also System Error Code 11:10 (refer to Page 2-7) or System Error Code 01.1:10 (refer to Page 2-3). Unit Hangs Up - If no System error code is displayed on the Front Panel but the Printer hangs up and the last message on the Front Panel is "Booting up the Carriage" it means that the Carriage ASIC could not be detected. Troubleshoot this problem in the same way as if System Error Code 02.1:10 had appeared. 3 The Printer will now check the revision of the PCA and the following message will be displayed on the Front Panel: „ Checking PCA rev. The value for the PCA revision must be more than 0.625V, if not the Front Panel will display System Error Code 01.1:10. For more information on troubleshooting this error code, refer to Page 2-3. 4 The Printer will program the duty cycle for the PWM test for the Media Drive Movement and leave it disabled and the following message will be displayed on the Front Panel: „ Prog slow PWM paper. If there is a failure at this point, the Front Panel will display System Error Code 01.0:10. For more information on troubleshooting this error code, refer to Page 2-3. 5 Before continuing, the following message will appear on the Front Panel. Remove the media if it is still loaded and make sure you stay out of the Print Platen area if the Window is open. hp designjet 4000 series printer service manual 4-13