In daily production on CHENGSENG series presses, doubling and ghosting are among the most frequently encountered issues for press operators and maintenance personnel. As a cost-effective domestic model, this press features a mechanical structure borrowed from mature designs, offering ample adjustment range for the air circuit and dampening rollers. If not addressed promptly, the consequences range from compromised registration accuracy and print quality to extended downtime in severe cases.
1. Fault Symptoms: Periodic doubling appears on the printed product parallel to the image, or regular ink density variation (ghosting) appears in solid areas.
2. Cause Analysis: Mismatch between roller diameter and oscillating roller phase causes roller ghosting; loose or unevenly tensioned blankets; insufficient ink supply in the ink train leading to solid-area ghosting; cylinder vibration. Given that the CHENGSENG is a cost-effective domestic model with a mechanical structure borrowed from mature designs and ample adjustment range for the air circuit and dampening rollers, troubleshooting should prioritize checking key components against standard parameters.
3. Operational Misconceptions: Checking roller diameter and oscillating ink quantity settings; re-tensioning blankets and adding uniform packing; increasing ink supply or changing color sequence prone to ghosting; reinforcing cylinder bearings to reduce vibration.
4. Common Mistakes: Do not blindly increase pressure or water volume based on experience; any parameter changes on the CHENGSENG control console must be recorded and verified; do not forcibly bar the press or bypass safety interlocks while the machine is running.
5. Preventive Measures: Regularly measure roller diameters; avoid prolonged solid printing at low ink settings; replace blankets on a scheduled basis. The above methods also apply to models such as CS102, CS104, CS920, and half-format four-color presses. For practical operation, refer to the domestic PLC control console / automatic centralized lubrication system and on-site conditions. For complex situations, it is recommended to seek professional maintenance support through the printm.cn platform.
