Turning the machine off using the front button is not enough to clear the internal cache. Samsung SCX-4623F INTERNAL ERROR - HP Community

Printers accumulate data residue over time inside their random-access memory boards. A deep power cycle forces the internal controllers to dump corrupted code blocks.

Plug the power cord directly into the wall outlet (avoid using power strips), reconnect the USB link, and boot up the printer. 2. Terminate and Rebuild the OS Print Queue

The device halts operation and displays an "Internal Error" message on the LCD panel. The error log (and network interface status) indicates that the printer received a data packet that failed integrity checks ("corrupted data verified"). Standard power cycling failed to clear the error immediately, as the corrupted job remained trapped in the active memory.

To resolve the "Internal Error including Corrupted Data Verified" issue on the Samsung SCX-4623F printer, try the following troubleshooting steps: