Sometimes the temperature does not decrease with height in the troposphere, but increases. Such a situation is known as a temperature inversion. Temperature inversions limit or prevent the vertical mixing of air.
Middle range machines can cost on average $400 and are often multi-function with copier and laser printer capabilities. Finally, high-end machines which offer high speeds, high capacity and high resolution come at a higher price-expect to pay $1000 - $2500 for such a fax machine.
To send an receive a fax from a computer through a connected fax or printer with fax, youâll need the following: 1  A computer. 2  A fax machine or multifunction (print / copy / scan / fax) printer that. 3  An active land-line phone line to connect the fax/multifunction printer.  A document to send.