Riso: Error A16-525 [work]

Use simulation 117 to return to default settings if adjustments do not help. Preventing A16-525 Errors

[ Remove Drum ] ➔ [ Take Out Disposal Box ] ➔ [ Power Cycle Off/On ] ➔ [ Reinstall Components ] from the machine. Remove the master disposal box from the side of the unit. Turn the main power switch OFF . Wait 30 seconds , then turn the machine back ON .

Here is the technical translation: The machine expects the leading edge of the paper to hit a specific optical sensor (the PF Register Sensor) at a precise moment during the feed cycle. When the CPU compares the actual sensor activation time against the calculated standard value, if the deviation exceeds the allowable range (usually ± a few milliseconds), the system throws .

Demystifying the RISO Error A16-525: Causes, Fixes, and Prevention

Clean the on the drum. Use a dry cloth or a slightly damp one to remove paper dust or ink buildup that might be making it reflective. 3. The "Black Marker" or Tape Trick riso error a16-525

While the machine may simply be waiting for a physical master to be removed, this error frequently occurs as a "false" reading even when the drum appears empty.

This error is common with generic replacement screens where the light-absorbing strip is thinner than the original part.

For a visual walkthrough of clearing this specific error on models like the Riso CV 3230, you can follow this guide: Riso 3230 A16 525 error resolve Creator Ratikanta YouTube• Mar 30, 2023

Check the . Empty any accumulated stencils, as an overfilled disposal box can cause a backup that triggers the A16-525 code. Use simulation 117 to return to default settings

Locate the optical sensors near the master disposal entrance and compression plate.

Troubleshooting Riso Error A16-525: Master Removal Failures Risograph duplicators are renowned for their high-speed, cost-effective printing capabilities. However, like any sophisticated piece of machinery, they can occasionally display error codes that disrupt production. One such common error in many Riso models, including the RZ, EZ, and MZ series, is .

Turn the machine completely off using the main power switch. Unplug the power cord from the wall outlet.

Using test mode simulation 941 or 959 to adjust the "Position-A" angle so the sensor aligns better with the non-reflective strip. Turn the main power switch OFF

Risograph machines can lock down when an error code is tripped repeatedly. Use this standard sequence to flush the system memory:

Locate the master sensor (typically near the master loading unit).

The Riso digital duplicator is a workhorse in high-volume printing environments like schools, churches, and print shops. However, encountering an error code can instantly halt your productivity. One such disruptive code is the .

Use a dry cloth or compressed air to clean any paper dust or ink debris from the sensor lens. 3. Check for Drum Damage (Screen Issues)