Within the high‑speed offset presses that produce newspapers and magazines, the Oxy Dry cam is positioned on the main drive shaft and provides the precise timing required to engage and release the blanket cylinder at each impression. By converting the continuous rotation of the motor into the exact angular displacement needed for the blanket’s up‑and‑down motion, the cam guarantees that ink transfer, drying, and paper feed occur without overlap, even when the line runs at several thousand sheets per minute. When a press switches from full‑color to spot‑color jobs, the cam’s profile ensures the same repeatable stroke, preventing misregistration that would otherwise blur images. Maintenance crews can quickly replace the cam during scheduled downtime, restoring the press to its original cycle time without recalibrating downstream rollers. The same cam design is also found in post‑press finishing equipment such as collating machines, where it drives the indexing of stackers to keep sheets aligned for binding.