An image forming apparatus includes a plurality of image forming portions, each of which has a photosensitive member and a developing device for developing an electrostatic image on the photosensitive member, and an exposure unit disposed beneath the image forming portions for exposing the plurality of photosensitive members. The probe comprises a three-dimensional arrangement of individually addressable electrodes. A propeller shaft, operatively connected to an end of the driveshaft, is disposed at an angle thereto. The first curved section can interconnect the attachment section and the straight section, while the second curved section can interconnect the straight section and the arch section. The catheter is delivered to the treatment site over the guidewire. The module attaches at the windshield by at least one of a mechanical attachment and an adhesive attachment.