Designjet T770/T1200 Main Logic Board |The formatter board has either a network cable or USB cable plugged into it. Next to the connector there are 3 LEDS on the formatter board. They are labeled I, II, III. They will either be solid or flashing. You need to determine what the sequence of the three LEDS are in order to decode the error. Replace Main PCA board: LED1: ON LED2: ON LED3: FLASHING To see the youtube videos demonstrating how to remove the covers:

The Designjet T3500 service error

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Tom was awesome

This board is the 'brain' of the printer: where all the processing and printer management occurs

Replace Formatter and Main PCA board:

One of the ASIC’s did not respond to the Serial Bus that connects the Electronics Module to the Carriage Assembly

I will follow up with tracking information when deposit has been received

it's crucial to evaluate your specific printing

Designjet T770 SATA Hard Drive |

Job Management: The hard drive also enables features like job spooling and job management

gave us tips as to why our cards kept getting ruined

ink cartridges