He flipped the power switch. The machine didn't buzz this time. It purred. A test sheet slid out, the ink crisp and perfect, smelling of ozone and success.

If the image is consistently shifting up or down on the printed paper, the registration timing is off.

3 stages (60, 90, and 130 pages per minute). First Copy Time: Approximately 37 seconds. Resolution: 300 x 300 dpi.

Vertical/horizontal banding

The print drum cannot rotate. This is often caused by a severe paper wrap around the drum, a seized bearing, or a faulty drive belt.

Do you need detailed step-by-step instructions for a specific (e.g., removing the paper feed tray or replacing the thermal head)? Share public link

Cuts and wraps the newly created master around the print drum.

Clean or replace the feed rollers; clean the feed sensor photo-interruptor. Paper Jam (Internal) Paper is stuck under the drum or wrapped around it. Remove wrapped paper; adjust stripper finger clearance. B01 Master Disposal Error

This post is for informational purposes only. High-voltage components are present inside digital duplicators. Always unplug the machine before performing internal repairs, and consult a professional technician if you are unsure about a procedure.

Hold down the button while powering on the machine.

Inspect drive belts for cracking or teeth wear; replace as a preventative measure.

Here is everything you need to know about the service manual for the Riso CZ 100 and how it can save your shop time and money.

Ensure the ink bottle is seated correctly and the pump is moving fluid to the drum. 📖 Common Service Procedures

Hold down specific keys on the control panel (typically the or specific arrow keys, depending on the firmware version outlined in your manual) while turning the power switch back on.

Use a tension gauge to measure the spring pressure pushing the TPH against the master roll platen.

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