: Physically remove any master remaining on the drum and ensure the disposal box is not full. The Power Cycle : Turn the machine off, hold down the yellow Reset button
: The master disposal hooks fail to lift the used stencil off the drum and transfer it to the disposal box.
If the box was empty or emptying it did not clear the code, a physical jam is likely present: Open the master disposal section access cover.
Resolving the error involves a systematic process to eliminate each potential cause. Here is a step-by-step guide to help you fix the A16-525 error.
: Wipe the small black velvet strip (usually near the clamp) with a dry cloth to remove paper dust.
The RISO Error A16-525, while disruptive, can often be resolved through systematic troubleshooting and basic maintenance. Understanding the causes of this error and taking proactive steps to prevent its recurrence can help minimize downtime and ensure the reliable operation of your RISO printer. If issues persist, do not hesitate to seek professional assistance to diagnose and repair more complex problems.
Warning: Attempting to disassemble the PF drive unit without the service manual can knock the main timing off permanently, leading to costly head strikes.
Non-genuine or third-party master rolls often have different structural thicknesses or adhesive properties, increasing the likelihood of disposal jams. When to Call a Certified Riso Technician
Once you have cleared the error, you want it to stay away. Implement these three maintenance habits:
If the drum is clean and the error persists, a dirty or obstructed sensor is the next likely culprit.
If you have replaced an empty cartridge with a new one and the error persists, the machine may not have recognized the swap.
Whether the error happens or only occasionally.
This error can be caused by several issues, ranging from a simple fix to a faulty sensor:
: Paper dust or ink on the black velvet strip can make it reflective, tricking the sensor into "seeing" a master. Aftermarket Screen Issues