  Modern trends in interface design for office equipment using controls on
touch surfaces create greater obstacles for blind and visually impaired users
and contribute to an environment of dependency in work settings. We believe
that \textit{conversational user interfaces} (CUIs) offer a reasonable
alternative to touchscreen interactions enabling more access and most
importantly greater independence for blind knowledge workers. We present a case
study of our work to develop a conversational user interface for accessibility
for multifunction printers. We also describe our approach to conversational
interfaces in general, which emphasizes task-based collaborative interactions
between people and intelligent agents, and we detail the specifics of the
solution we created for multifunction printers. To guide our design, we worked
with a group of blind and visually impaired individuals starting with focus
group sessions to ascertain the challenges our target users face in their
professional lives. We followed our technology development with a user study to
assess the solution and direct our future efforts. We present our findings and
conclusions from the study.
