MAJ 13/11/15 Here is the procedure to solve the error 08:11 on HP Designjet 500 and 800 printers: First, verify the printer's current Firmware release and upgrade as needed. Turn the printer off then on and attempt to recreate the error message. If no error appears, attempt to verify functionality. If the error re-appears, continue with the remaining steps. Turn the printer off and disconnect the data cables (parallel and/or network), leaving the power cable connected. Turn the printer on, if the error re-appears continue with the remaining steps. If no error, verify functionality as instructed below (troubleshoot data cables, file(s), computer port type, etc). Check all the connections on the Interconnect PCA and Electronics module (refer to pg. 8-7, 8-8 of the 500/800 Series Service Manual ). If problems noticed and corrected, attempt to verify functionality before continuing with the remaining steps. WARNING: To prevent p