Do not simply turn the machine off and on. That will temporarily clear the code, but it will return mid-run, wasting 50 sheets of paper. Follow this protocol:
If you operate a Riso Risograph printer (commonly models like the RZ, RP, or RN series), seeing an error code flash on the display can immediately halt your production workflow. One specific error that confuses many users is A16-525. riso error a16-525
While Riso error codes can be cryptic, the A16 series generally points toward the ink supply system. Understanding the specific trigger for the -525 suffix is key to resolving it quickly without an expensive service call. Do not simply turn the machine off and on
| Step | Action | What to look for | |------|--------|------------------| | 1 | Power cycle the machine completely. | Wait 30 seconds after power off before restarting. | | 2 | Open front cover and check for jammed paper near drum area. | Remove any scraps, especially near sensors on left/right sides. | | 3 | Remove and reseat the error-indicated drum unit. | Pull drum out halfway, push back in firmly until it clicks. | | 4 | Check drum lock lever is fully closed. | Loose drum lock will misalign home sensor reading. | One specific error that confuses many users is A16-525
If the problem persists, check if there are any firmware updates available for your Riso duplicator. Additionally, have a professional inspect the control board for faults.