Please help me with our RISO CV3230. T01-537 it keeps pop'in. I already check and clean the sensors where the area of error occurs but its always get the error after cleaning. My remedy was I manually put back the waste master in the drum and master make a new one. It runs good for only 3 to 5 master make. But after 3-5 master making the error pop up again. Please help
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