Model Compatibility: Fits WorkForce Pro 7840, WF-7840, and WF 7840 printer models as a functional replacement hinge component. Part Type: Replacement hinge designed to match the physical dimensions and mounting configuration of the WorkForce Pro 7840 series. Functional Purpose: Restores the hinge function required for proper of the WorkForce Pro 7840, WF-7840, or WF 7840 device cover or panel. Specification Alignment: Matches the hinge specifications used in the WorkForce Pro 7840, WF-7840, and WF 7840 without altering design or operational parameters. Installation Scope: Installs directly into the WorkForce Pro 7840, WF-7840, or WF 7840 using the existing hinge mounting points and hardware locations., Manufacturer: MTTThrTvs