Part I: Games & Gaming · Slot Machines & Electronic Gaming

Coin Hopper Fill

Operations

The process of adding coins to a slot machine’s hopper when it has been depleted by payouts. Hopper fills were a routine operational necessity on coin-operated machines, requiring a slot attendant to open the machine, access the hopper, and add coins from a fill bag or cart. Each hopper fill is documented on a fill slip and recorded in the slot accounting system. With the universal adoption of TITO technology, hopper fills have become largely obsolete on modern casino floors, representing one of the most significant operational cost savings of the cashless transition.

In practice

In jurisdictions where coins are still used (some Asian markets, cruise ships, tribal casinos), hopper fills remain an important operational activity requiring dual verification and surveillance observation.

One entry from the Casino Industry Glossary — 1,157 terms written for surveillance, compliance and operations professionals rather than for players. Definitions describe industry usage; where a term carries a regulatory meaning, verify against the instrument that governs your jurisdiction.