The Horizon PJ-77 Jogger is a specialized book production machine designed for small-volume operations, categorically serving as a paper alignment solution. This machine ensures precise paper stack alignment through vibration, optimizing printing and binding processes for enhanced accuracy and efficiency. Ideal for print shops, binderies, and small-scale publishing operations, the PJ-77 enhances workflow consistency by preparing paper stacks for seamless integration with compatible collating towers. Its robust design and compatibility with multiple Horizon collating systems make it a versatile and reliable choice for improving production quality in short-run book manufacturing.