Every film processed this morning came out much darker than normal, although patient positioning was correct. Which cause is MOST likely?

Giải thích

Excessive density across an entire batch points to overexposure or to developer that is too warm, too strong, or used too long, since all of these increase image darkness. Depleted fixer leaves films cloudy or milky rather than dark. Vertical angulation errors change tooth length, not density, and the lead apron plays no part in image density.