Konica Minolta has discontinued production of this model but maintains information on it in its website.
The shutter is an "electronically-controlled, vertical-traverse, focal-plane type."
In addition to the essential modes P, A, S and M, the Maxxum 4 has all the usual quick-modes for the beginner: portrait, landscape, close-up, sports and night portrait.
As with comparable film cameras of the period, the Maxxum 4 has multiple-frame drive mode, and self-timer; the maximum speed for continuous shooting is just short of two frames per second.
Any standard 35mm still-film (135 format) may be used with a few caveats: Polaroid 35mm instant film should not be used because "winding problems may occur"; infrared film is not recommended because the frame counter shines infrared light at the sprockets (this is a very common feature with motorised film-advance cameras); the camera can not advance beyond the 40th frame in rolls of film with more than 40 frames.