HP TX600 Pressure Roller (3XB77-67003) is a replacement roller part for the paper-handling assembly of compatible HP DesignJet printers. It is identified in the parts catalogue as the TX600 pressure roller.
The listing gives compatibility with the HP DesignJet T2600 and T2600dr. This identifies the intended printer models and helps distinguish the part from other TX600 components, such as the stepper motor or glass plate.
This is a specific printer service part, MPN 3XB77-67003, for maintenance or repair of a supported printer. The source does not provide dimensions or package contents.