HP Officejet Pro 8500 - Manual (Page 109)

Cancel a fax
You can cancel a fax you are sending or receiving at any time.
To cancel a fax
▲ Press Cancel on the device control panel to stop a fax you are sending or
receiving. If the device does not stop faxing, press Cancel again.
The device prints any pages it has already started printing and then cancels the
remainder of the fax. This can take a few moments.
To cancel a number you are dialing
▲ Press Cancel to cancel a number you are currently dialing.
Cancel a fax 105