HP Designjet 4000 Service Manual - Page 88
System Error Code, did not, Code 41:10, Drive Roller or the Overdrive Assembly.
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Service Tests and Utilities 6 The Printer will now test the Media Drive moving in an open loop in one direction and the following message will be displayed on the Front Panel. Press any key to continue the test: Check that the movement done is more than 100 encoder units (in absolute value). If the movement done is less than 100 encoder units then open the Window and check for any visible obstacles restricting the movement of the Drive Roller or the Overdrive Assembly. In this case, press any key to finish the test. 7 The Printer will now test the Media Drive moving in an open loop in the opposite direction and the following message will be displayed on the Front Panel. Press any key to continue the test: Check that the movement done is more than 100 encoder units (in absolute value). If the movement done is less than 100 encoder units then open the Window and check for any visible obstacles restricting the movement of the Drive Roller or the Overdrive Assembly. If the Encoder Units is less than 100, the Printer will request you to follow these instructions: a Manually load a sheet of paper in to the Printer (an A4 sheet). b The Printer will test the Media Drive moving in an open loop. c Perform a visual check during the test. The Front Panel will ask you if the paper moved or not: - If the paper moved, the Front Panel will display System Error Code 56:10. For more information on troubleshooting this error code, refer to Page 2-17. - If the paper did not move, the Front Panel will display System Error Code 41:10. For more information on troubleshooting this error code, refer to Page 2-13. d A "FAIL" message will be displayed on the Front Panel and the test will be terminated at this point. 4-14 hp designjet 4000 series printer service manual