It can accommodate various USB flash drives as long as their shape resembles the two models shown in the image and their length is shorter than those models. USB drives without holes need to be secured using glue or double-sided tape.

The bearing model is SR188C; rotation is possible even without a bearing, which is therefore not an essential component.

Support structures should be cleaned as thoroughly as possible—cleaner surfaces result in smoother sliding and rotation.

Once a retaining pin is inserted, it becomes difficult to remove. Ensure all functions are operating correctly before inserting it.

If you wish to remove the retaining pin, use a sharp, break-resistant tool to gently pry out part of the pin from the side, then finish removal with pliers.

Retaining pins have a certain tolerance; under good printing conditions, they may feel somewhat loose. You can insert small pieces of paper to help secure them more firmly.