An apparatus is proposed for detachable mechanical and electrical and/or optical connection of a recording appliance to an imaging apparatus. The apparatus comprises a mounting board and an insert board, which is pushed into the mounting board. In this case, the mounting board has guides on opposite sides, which hold the insert board in an interlocking manner in the pushed-in state. Electrical and/or optical contacts on the mounting board and on the insert board are connected to one another when the insert board has been pushed essentially completely into the guides on the mounting board. In one embodiment, a locking lever is provided, which converts a rotary movement of the locking lever to a linear movement of the insert board in the insertion direction. A latching position is provided in an end position of the locking lever.