HP DesignJet 500 Errors

[ceva156]

We have a client that has a HP Designjet 500 in their office for large prints.

Seems it producing random errors when trying to troubleshoot it.

First it was 86.01 after replacing 2 out of the 4 ink cartridges (Cyan and Magneta). Their also 1 other color that a bit low but don't believe it causing the error.

When I put back the old ink cartridge, started getting error 81.01 saying paper jam. Rebooting it clears the error until printing or their a error as soon as the printers come back online.

Any ideas or what I should look at. I don't want to take it apart as it seems to be a huge hassle but wondering where to go from here at this point.

Error occurs not just on one PC but others when trying to print to it.

[Repairatrooper]

86 errors have nothing to do with cartridges. 86 errors are problems with the scan axis of the printer. Based on the age and if it has not been maintained properly it could be a lack of lubrication on the carriage cross rod or the carriage drive belt might be starting to fall apart. A visual inspection of the carriage area is needed to see if there are any obvious defects with the belt or possible something like a piece of paper blocking the movement of the carriage. If the carriage rod has never had maintenance then likely it is covered with ink mist which increases the friction and overloads the drive motor. It should be cleaned with alcohol and then lubricated with the proper oil (HP part number 6040-0855). If the belt is frayed it will need to be replaced.