Restoring a scanner to its default settings can be done in several ways, depending on the type of scanner. There are generally two types of scanners: flatbed scanners and hand-held or portable scanners.
For flatbed scanners, most manufacturers will offer a button on the machine or software that allows you to reset the scanner to its original factory settings. This is usually labeled “Restore defaults” or something similar. If this option is not available, you may be able to reset the scanner by unplugging it from the power source and then plugging it back in.
If your flatbed scanner has a control panel, it may have a specific function marked “reset” or “defaults” which you can use to restore the scanner to its original settings. You may also be able to reset the scanner through the scanner’s software.
For hand-held or portable scanners, there may be a small button located somewhere on the scanner — typically near the power switch. Pressing this button will restore the scanner to its original factory settings. If there is no such button, you may need to consult your user manual or contact the manufacturer for further instructions.
Regardless of the type of scanner you are using, it is always advisable to make sure that the document is properly scanned before attempting to restore the scanner to its original settings. That way, you will have a backup of the original document if needed.