The High Voltage (EHT) block has detected a short circuit. The manual directs you to check the deflection plates inside the printhead. They are likely dirty, wet with ink, or suffering from moisture buildup. Cleaning and thoroughly drying the printhead usually resolves this.
The zip file usually contains the technical documentation needed to keep this high-speed, small-character continuous inkjet (CIJ) printer running. It is essential for operators managing production lines where uptime is critical. Key Operations & Maintenance If you've recently unzipped these files, videojet 1510 user manual.zip
Comprehensive sections cover "gutter faults" and nozzle cleaning, often supplemented by video guides from Videojet Technical Support The High Voltage (EHT) block has detected a short circuit