In daily production on Manroland (Roland) series presses, delivery faults are among the most common issues encountered by press operators and maintenance personnel. This German-built model features large cylinder diameters and high printing pressure, making it suitable for heavy stock and packaging printing, with a durable gripper mechanism. If not addressed promptly, the consequences range from compromised registration accuracy and print quality to extended machine downtime in severe cases.
1. Fault Symptoms: Inconsistent stacking, sheets dropping, skewed pile on the delivery table, and back-side smearing caused by uneven powder spraying.
2. Cause Analysis: Timing deviation in the delivery chain and gripper open/close sequence; incorrect powder quantity or clogged spray nozzles; improper adjustment of the jogger mechanism; failure of the braking roller/suction wheel. Given the German-built machine's large cylinder diameters, high printing pressure, suitability for heavy stock and packaging printing, and durable gripper mechanism, priority should be given to checking key components and standard parameters during troubleshooting.
3. Maintenance Guide: Correct the delivery gripper open/close timing and chain phase; clean the spray nozzles and set powder quantity according to paper weight; adjust the front and side jogger plates; inspect the suction wheel and braking roller.
4. Routine Maintenance: Regularly clean the powder spray system; check delivery chain lubrication; set delivery parameters according to paper type.
The above methods also apply to models such as the R700, R900, ROLAND 700, and R505. For practical operation, refer to the RCI remote ink control system / CCI console and on-site conditions. For complex situations, it is recommended to contact professional maintenance support via the printm.cn platform.
