HP Designjet 4000 Service Manual - Page 54

System Error Codes System Error: 86:10 Problem Description: Initializing Scan-Axis Motor failure. Corrective Action: Try the following: „ Switch the Power OFF from the back of the Printer and disconnect the Power cord. Reconnect the power cord and power On the Printer. „ Check that the Carriage Belt is correctly installed. „ Replace the Encoder Strip and Encoder Sensor ⇒ Page 8-45. „ If the System Error continues, replace the Scan-Axis Motor ⇒ Page 8-59. System Error: 86:11 Problem Description: Scan-Axis length too short. Corrective Action: Try the following: „ Open the Window and check for any visible obstacles restricting the movement of the Carriage Assembly. If there is a wrinkled mass of media inside the paper path, lift the Pinchwheels (using the Media Lever) and clear the obstruction. „ Replace the Encoder Strip and Encoder Sensor ⇒ Page 8-45. System Error: 91:02 Problem Description: The HP Instant Support troubleshooting tool has detected that at least one Printhead has been replaced without having a specific error, and without being recovered/cleaned. Corrective Action: Advise the customer that the next time they want to replace a Printheads they should make sure that at least a Printhead Recovery is performed. System Error: 91:10 Problem Description: The HP Instant Support troubleshooting tool has detected that at least, for one Printhead: „ It is currently in warranty (less than 1000cc of ink used). „ That the previous 2 Printheads had been found defective within the warranty period. Corrective Action: In this case, it is possible that the Printer is damaging the Printhead. If, after replacing the Printhead a third time, it is found to be defective again, you may need to troubleshoot the Carriage Flex Cables or the Carriage PCA. 2-24 hp designjet 4000 series printer service manual