After executing the simulation code, press the key to exit the active simulation. Turn off the copier using the main power switch.

Select and press ENTER again to confirm. The machine will inform you that all values are returning to default. 4. Admin Password Reset

The Sharp AR-6020 has a hidden (accessed via # → * → C → * on some models). Use this only for diagnostics, not casual resets. For everyday use, the toner and maintenance resets above will keep your machine running for years without a technician.

The developer unit is a critical part of the image-forming process. When you replace it, you must initialize the toner density for the new developer.

To access the advanced service functions, you need to put the machine into Simulation mode. The standard method is as follows:

To return all user-defined settings (like tray assignments or network configurations) to their original factory state, use the menu interface: Press the button on the control panel.

If your Sharp AR-6020 is locked out due to a critical engine error (like a fuser overheating code), the machine will refuse to print even after the physical problem is fixed. You must manually clear the system log using . Enter Simulation Mode (Using the sequence in Section 2). Type 14 using the numeric keypad. Press the Start (Black & White copy) button.

If your is flashing a red "Maintenance Required" light, showing a F code on the display, or simply refusing to copy, you likely need to perform a reset. Unlike a home printer, this office workhorse requires a specific button sequence (often called "Simulation Mode") to clear internal counters.

The AR-6020 has a built-in "Auditing Mode" that allows you to track copy counts for up to 100 different accounts using 3-digit account numbers. If your machine is configured to use this feature, you can reset the copy counter for a single account or for all accounts to 0. This does not require entering Service Mode; it is done through the "User Settings" program.

This standard Power Cycle resolves most common operation glitches without deleting your settings:

multi-function printer is typically required to clear persistent error codes (like "H4" or "CH"), bypass a developer or toner cartridge issue, or resolve internal logic lockups. To successfully reset the Sharp AR-6020 Go to product viewer dialog for this item.