Bad Drop Detector.
Corrective Action: Try the following:
a. Check that the Drop Detector Cable is NOT broken or damaged.
b. Check that the Drop Detector cable is correctly connected to the Service Station Cable.
c. Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor.
d. Replace the Drop Detector Assembly.
e. If the Error Code continues, replace the Main Logic Board
Note: The logic board is a direct replacement for the Designjet 1050C Plus and 1055CM Plus. If the plotter you are repairing is the Designjet 1050C (not Plus) you will also need to replace the memory and the firmware.
If you are repairing a Designjet 1055CM (not Plus) you will have to replace the Hard Disk Drive also. The firmware is identical for the 1050C Plus and 1055CM Plus
Note: The aerosol fan is not used in the Designjet 1050C Plus or 1055CM Plus. Coil the cable out of the way or completely remove the fan.
WARNING TAKE CARE
WHEN CONNECTING THE TRAILING CABLE TO THE ELECTRONICS MODULE OR CARRIAGE. INCORRECT
INSTALLATION WILL BURN THE FUSE IN THE ELECTRONICS MODULE, CAUSING THE COMPLETE
FAILURE AND REPLACEMENT OF THE LOGIC BOARD. 100 OHMS OR HIGHER MUST BE SEEN AT THE TEST POINTS. CONSULT THE SERVICE MANUAL FOR CORRECT PROCEDURE.
WARNING 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 codes are hexa-decimal based numbers generally caused by internal system errors. Following is the description and recommended corrective actions for this error code. Only try one recommended action at a time and check if the error code has disappeared. If you have an error code which is not documented or you have an error which you cannot resolve, then report the error to the HP Response Center or the nearest HP Support Office.
When reporting the error, have the following information ready:
a. Model and Serial Number of the printer.
b. Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev.
c. The complete error number (See Note below).
d. The Service Configuration Print
e. The Current configuration sheet.
f. Which software application you are using (name, version, etc.).
NOTE When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.
Continuable and Non-Continuable Error Codes
Some of the Error Codes are continuable, which means you can press Enter on the front-panel and continue working with the Printer. Non-Continuable Error Codes do not allow you to continue working with the Printer, in this case power the Printer OFF and ON again and see if the System Error disappears. If the Error Code reappears, then the Printer requires an on-site visit in order to resolve the problem.