Riso Cz 100 Service Manual

Over time, the image might shift left, right, or top/bottom. The service manual details mechanical adjustments (screws and springs) as well as software adjustments via Test Mode 10 (TM10) or 11 (TM11) to fine-tune the leading edge and side-to-side registration.

One of the most guarded secrets of the Riso CZ 100 is the Service Mode. This is a hidden menu system accessed via a specific combination of button presses on the control panel.

Warning: Entering Service Mode allows you to change deep system settings. Adjusting these incorrectly can damage the machine. riso Cz 100 Service Manual

The Service Manual provides the correct key combination to enter this mode and explains the parameters for:

Here is a cheat sheet derived from the service manual for frequent issues: Over time, the image might shift left, right, or top/bottom

| Error Code / Symptom | Likely Cause (per manual) | Manual Solution (Section/Page) | |----------------------|----------------------------|--------------------------------| | J08-422 | Master ejection sensor blocked | Clean or replace sensor (Photoelectric, Section 5.3). Test via TM 68. | | T01-223 | Drum home position not found | Check drum HP sensor flag (Section 6.2). Adjust belt tension. | | E00 (No master made) | Thermal head broken/dirty | Measure head resistance (Section 7.4). Clean with isopropyl. | | Paper misfeed J01 | Pickup roller worn or clutch slipping | Replace roller (P/N 994-20720-010). Adjust clutch air gap (Section 4.1). | | PM counter alarm | 20k masters reached | Enter service mode (Hold Clear + Stop during boot). Reset PM counter (Page 9-12). |

Search for “Riso CZ 100 service manual original.” You are looking for a physical binder (Riso part number usually starts with "RZ" or "CZSM"). Verify photos show the error code appendix. This is a hidden menu system accessed via

A typical service manual for the Riso CZ 100 would include: