HP Designjet 4000 Service Manual - Page 52

System Error Codes System Error: 79:04 Problem Description: Generic Firmware error. 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 Printer has the latest Firmware version. If not, update the Firmware to the latest version. System Error: 79.1:04 Problem Description: CDS server lost connection with client. 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 Printer has the latest Firmware version. If not, update the Firmware to the latest version. System Error: 81:01 Problem Description: Paper servo shutdown. Corrective Action: Try the following: „ Open the Window and check for any visible obstacles restricting the movement of the Drive Roller. If there is a wrinkled mass of media inside the paper path, lift the Pinchwheels (using the Media Lever) and clear the obstruction. „ Perform the "Media Drive" Diagnostic (⇒ Page 4-12) to further troubleshoot the error code. „ If the System Error continues, replace the Media-Axis Motor ⇒ Page 8-62. System Error: 81:03 Problem Description: It was impossible to correctly stop the servo before setting the encoder position. Corrective Action: Try the following: „ Open the Window and check for any visible obstacles restricting the movement of the Drive Roller. If there is a wrinkled mass of media inside the paper path, lift the Pinchwheels (using the Media Lever) and clear the obstruction. „ Perform the "Media Drive" Diagnostic (⇒ Page 4-12) to further troubleshoot the error code. „ If the System Error continues, replace the Media-Axis Motor ⇒ Page 8-62. 2-22 hp designjet 4000 series printer service manual