HP Designjet 4000 Service Manual - Page 34

System Error Codes System Error: 01.2:10 Problem Description: ISS PCA faulty - Humidity sensor out of scale or NVM backup 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. „ If the System Error continues, replace the Ink Supply Tubes and Trailing Cable ⇒ Page 8-33. System Error: 02:10 Problem Description: Encoder seems to be wrong. Corrective Action: Try the following: „ Check that the Carriage Stopper is correctly installed (Refer to Carriage Disassembly Instructions ⇒ Page 8-53, Step 16.). „ Replace the Carriage Assembly ⇒ Page 8-53. „ If the System Error continues, replace the Encoder Strip and Encoder Sensor ⇒ Page 8-45. Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed. System Error: 02.1:10 Problem Description: Problem with the Carriage PCA. 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 Trailing Cable is not damaged. „ Check that the Trailing Cable is correctly connected to the Carriage PCA, Interconnect PCA and to the Gamut PCI PCA. „ Replace the Carriage PCA ⇒ Page 8-48. „ If the System Error continues, replace the Gamut PCI PCA ⇒ Page 8-69. Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed. 2-4 hp designjet 4000 series printer service manual