In daily production on Komori series presses, ink unit wash-up and oscillation issues are among the most common problems faced by press operators and maintenance personnel. This Japanese-made model is known for its stability, with mature H-UV drying and automatic registration systems, and even ink oscillation across the ink train. If not addressed promptly, the consequences can range from compromised registration accuracy and print quality to extended press downtime in severe cases.
I. Fault Symptoms: Incomplete color change, hardened ink buildup on rollers, uneven oscillation, and noticeable front-to-back color variation.
II. Cause Analysis: Incomplete roller washing, incorrect oscillation time/stroke settings, roller diameter wear, and poor ink compatibility. Given that Komori Japanese presses are recognized for stability, mature H-UV drying and automatic registration systems, and uniform ink oscillation, troubleshooting should prioritize checking critical components and standard parameters.
III. Parts Replacement Specifications: Follow the color-change wash-up procedure and use dedicated wash-up solution; verify oscillation stroke and timing; measure and replace worn ink rollers; select compatible inks.
IV. Wear Parts Checklist: For ink unit wash-up and oscillation, it is recommended to keep in stock: relevant bearings/bushings, Komori-compatible sensors and suction nozzles, seals, and standard wear rollers. Always use genuine or certified parts and verify model numbers before installation.
V. Preventive Measures: Always wash up after every color change, perform regular deep cleaning of ink rollers, and record roller diameter measurements. The above methods also apply to models such as LS440, LS629, Lithrone, GL840, and G40. For actual operation, refer to the PQC Print Quality Control system / KMS console and on-site conditions. For complex situations, it is recommended to contact professional maintenance support through the printm.cn platform.
