What is showing on the screen? (e.g., H4, U2, CH)

Print this table and keep it near your machine:

Sometimes, the machine just needs a fresh start with its maintenance life. After entering Service Mode with the Interrupt-C-Interrupt

A full factory reset will clear custom network settings, IP addresses, and default print settings. Take photos of your configuration page first ManualsLib.

Below, we break down every reset procedure for the AR-6020, from simple button pushes to hidden service codes.

Q: Why is my Sharp AR-6020 not printing? A: There could be several reasons why your Sharp AR-6020 is not printing. Check for paper jams, verify toner and ink levels, and ensure the printer is properly connected to your network or computer.

The Sharp AR-6020 does not have a manual "jam reset button." It relies on sensors. If jams persist after reset, you likely have a broken sensor flag or a worn-out paper feed roller.

If the copier is indicating a drum replacement or maintenance is required, you must reset the counter after replacing parts or if the warning is false.

If these steps did not resolve your issue, it is recommended to contact a certified service professional for potential component failure. If you'd like, I can:

Do not turn off the machine while it reformats its internal NVRAM. Troubleshooting Common Reset Failures

: Turn off the power button on the control panel. Open the front cover and toggle the main power switch (near the waste toner box) to off. Wait 10 seconds before switching it back on to clear temporary memory. Clear Error Codes (H2, H5, etc.) Enter Simulation Mode by pressing: [#] → [Interrupt] → [C] → [Interrupt] in quick succession. Once the display goes blank, enter code using the keypad.

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 an error code like H4 (fuser trouble) returns immediately after a reset, do not continue resetting it. This indicates a physical component failure—such as a blown fuser lamp or faulty thermistor—that requires professional repair to avoid a fire hazard [5.7, 5.12]. AI responses may include mistakes. Learn more

[Clear All]→[Interrupt]→[Clear]→[Interrupt]open bracket Clear All close bracket right arrow open bracket Interrupt close bracket right arrow open bracket Clear close bracket right arrow open bracket Interrupt close bracket

Before trying anything drastic, perform a soft reset. This clears temporary memory glitches without affecting settings.

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