Konica Minolta Developer Initialization and Forced Toner Supply Guide

Procedures for Developer Initialization and Forced Toner Supply for Konica Minolta Models (e.g., 184, 195, 205i, 225i, 227i, 226, 206)

Konica Minolta IU184 Drum/Developer Initialization:

1. Install the drum unit into the machine, open the front cover, remove the toner cartridge, and turn on the power (see operation image below):

2. Enter Service Mode: Press the following keys in sequence: Utility/Menu — Stop — 0 — 0 — Stop — 0 — 1. For models ending in “i”, the password is “927292”; at the password screen, enter “927292” and press “OK” (see password screen image below):

For older models: Press Menu — Common Settings — Left Arrow (twice) — Common Settings — Left Arrow — Right Arrow.

3. Service Interface: In the Service Mode interface, press the “Down” arrow to select “Function” (see image below):

Press the “Down” arrow to locate the “TCR AUTO ADJUST” option and press OK to confirm (Wait for the developer mixing and adjustment process to complete.); wait approximately 2 minutes and observe the values​displayed on the screen after initialization. Once complete, exit Service Mode, turn off the machine, and restart it (see operation image below):

Note: Default TCR value is 130–160; vThe reference TCR value is approximately 130–160. Slightly higher or lower values may still be acceptable depending on print quality and machine condition.

Forced Toner Supply Procedure for Konica Minolta Models (e.g., 184, 195, 205i, 225i, 227i, 226, 206)

If you encounter issues such as light printing or a “Replace Toner Cartridge” prompt (even when toner remains in the cartridge) on these models during daily operation, you can use the forced toner supply function to adjust and verify the system.

Operation Method:

1. Insert the toner cartridge and enter Service Mode: Press the following keys in sequence… Utility/Menu -> Stop -> 0 -> 0 -> Stop -> 0 -> 1; models ending with “I” require a password—enter “927292” and press the “OK” key (see image below):

2. Service Interface: In the Service Mode interface, press the “Down” key to select “Function,” press “OK”, then scroll down to select “Toner Supply” (see image below):

After selecting “Toner Supply” and confirming, wait 30–60 seconds for the forced toner supply process to complete. Then, exit Service Mode, turn the machine off and back on, and verify that it is functioning correctly (see image below):

Note: The Toner Supply function may be useful when the machine has symptoms such as faint printing, a Toner Empty warning, or certain toner-related error conditions such as C2557, or a “Toner Empty” alert occurring while toner remains in the cartridge. These symptoms can have multiple possible causes. Forced toner supply should be treated as a diagnostic or service procedure rather than a universal solution.