In daily production on Mitsubishi series presses, delivery faults are among the most common problems encountered by press operators and maintenance personnel. These Japanese-built machines are known for high durability and stable ink density, with cylinder diameter design balancing speed and quality. If not addressed promptly, the issues can range from affecting registration accuracy and print quality to causing extended downtime in severe cases.
1. Fault symptoms: Inconsistent stacking at delivery, sheets dropping, skewed pile on the delivery stack, and back-side marking caused by uneven powder spraying.
2. Cause analysis: Timing deviation in the delivery chain and gripper opening/closing; improper powder spray volume or blocked nozzles; incorrect adjustment of the jogger mechanism; failure of the braking rollers/suction wheels. Given that Mitsubishi Japanese machines are renowned for high durability and stable ink density, with cylinder diameter design balancing speed and quality, priority should be given to checking key components against standard parameters during troubleshooting.
3. Maintenance guide: Correct the timing of delivery gripper opening/closing and chain phase; clean the nozzles and set powder spray volume according to paper weight; adjust the front and side jogger plates; inspect the suction wheels and braking rollers.
4. Routine maintenance: Regularly clean the powder spray system; check lubrication of the delivery chain; set delivery parameters according to paper type. The above methods also apply to models such as the D3000, DiaPress, Diamond series, and 3F. For practical operation, refer to the MAC automation control system / CCB ink fountain and on-site conditions. For complex situations, it is recommended to contact professional maintenance support via the printm.cn platform.
