Riso Error A16-525 [updated] -

Open the front door of the Risograph and carefully pull out the active print cylinder (drum).

If you have tried cleaning the velvet strip, applying matte tape, and wiping the internal sensor but the machine still refuses to clear the code, what of Riso (e.g., RZ220, EZ390, SF5130) are you using? Share public link

If there is an actual master stencil jammed inside the machine, follow these sequential steps to safely clear it:

: Inspect the little white wheels and the clamp plate. If they are broken, missing, or dirty, the machine may fail to properly cycle the master removal. Test Mode Adjustments riso error a16-525

: Wipe away excessive ink accumulation around the master clamp plates using a lint-free cloth and a specialized cleaner like white spirit or isopropyl alcohol. Phase 2: Restoring the Light Absorber Strip

If the machine says the master is there but it isn’t, the sensor might be faulty or dirty.

Riso Error A16-525 indicates a "waiting master removal" status, commonly caused by a physical master jam or a dirty, reflective, or worn-out black velvet light absorber strip on the print drum, which triggers a false sensor reading. Troubleshooting typically involves cleaning the light absorber strip with a dry cloth, removing any remaining master material, or using black tape/ink to ensure the sensor does not reflect light. For more details, visit Reddit r/risograph Open the front door of the Risograph and

For a visual walkthrough of clearing this specific error on machines like the CV 3230, watch this troubleshooting guide: Riso 3230 A16 525 error resolve Creator Ratikanta YouTube• Mar 30, 2023 Advanced Troubleshooting

The Riso error code indicates the machine is "Waiting for the master to be removed" from the print cylinder (drum). This error typically occurs when the printer's sensor fails to detect that a master has been successfully ejected into the disposal box. Common Causes

The most straightforward cause is a mechanical failure during the master disposal cycle. If the master clamp fails to open, or if the disposal rollers fail to grip and pull the used master sheet into the disposal box, the master physically stays on the drum. This is often accompanied by an error (master disposal jam). 2. Dirty or Damaged Master Sensor If they are broken, missing, or dirty, the

: The sensor cannot correctly read whether a master sheet is present or absent. 3. Aftermarket Screen Issues (The "Phantom" Error)

If the screen cloth on the drum has been replaced with an aftermarket version, it might not be seated properly, or it might be triggering the sensor incorrectly.

: Gently lift the master sheet off the drum screen. Discard it into your master disposal box.

: Pull out the print drum, manually peel off any remaining master material, and slide the drum back in.