HP 640 Renewed Inkjet Fax Machine - Plain Paper FaxingEfficient Faxing and Copying for Your Office The HP 640 Inkjet Fax Machine is a renewed device that offers reliable faxing and copying capabilities. With features like automatic redial, speed dials, and plain paper printing, it simplifies your everyday office tasks. Printing Technology: Inkjet Max Input Sheet Capacity: 50 Max Black and White Print Resolution: 600 dpi Fax Speed: 6 seconds per page Condition: Renewed