HP 4000

2-24
System Error Codes
HP Designjet 4000/4020 Printer Series Service Manual
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 8-72.
 If the System Error continues, replace the Scan-Axis Motor ⇒ Page 8-88.
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 8-72.
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.