Designjet T770 Main Logic Board FanAre you getting a 03: 10 service error? Noise coming from left hand side of printer? The cooling fan on the Power Supply is probably faulty and needs replaced. The noise is coming from the bearings within the fan assembly, which with enough resistance can cause the error code: 03: 10 which will shut down the printer showing error code: 03: 10

the hard disk needs replaced if the LEDs on the formatter read:

Formatter is sold 'AS IS'

Availability Of Replacement Parts

Replace Formatter and Main PCA board:

Could not have been easier

Automatic Sheet Feeder: Some models come with an automatic sheet feeder for efficient printing of multiple sheets

Ryan on March 11 2015

remove the Printhead Maintenance Cartridge

Storage Capacity: The storage capacity of the hard disk in the HP DesignJet T790 and T795 printers can vary depending on the specific model and configuration

the only solution is to replace the service station

They will either be solid or flashing

Re-seat or Replace Cartridges: