Humidity exerts a powerful influence on the performance of compression rollers in production line machinery. These rollers rely upon consistent surface friction and material adhesion to transport ink, paper, or other substrates smoothly and reliably through the machine. During periods of elevated relative humidity, paper and other substrates become saturated with humidity, causing them to distort in dimension. This dimensional change can result in misalignment, as the material no longer feeds at the expected tension or shifts in gauge. The rollers themselves, particularly when constructed from elastic compounds, take on ambient humidity, which reduces surface firmness, thereby impairing consistent force application. This leads to ink transfer becomes erratic, producing smudging or ghosting in printed output. Conversely, in dry air conditions, materials dry out and become brittle, which increases charge retention, causing paper to feed unevenly. At the same time, dry rollers may become rigid and inflexible, leading to loss of traction, which results in incomplete pressure contact. These opposing conditions undermine the accuracy required for premium print standards. Technicians are advised to actively surveil humidity levels in the workspace and implement environmental controls such as dehumidifiers and humidifiers to keep levels stable, within the 40–60% RH window. Routine maintenance of rollers, including moisture inspection and inspecting for غلطک پرس پرینتر wear, helps ensure consistent, long-term performance. By understanding humidity affects roller behavior, facilities can make proactive adjustments, thereby minimizing downtime and elevating output fidelity.