HP 640 Fax

HP Updated: 2008-06-12 RSS
HP 640 Fax

Professional quality plain-paper fax/copier for managing every day needs.


• Be more productive with automatic redial, 50-sheet paper tray, 50 speed dials, one-touch dialing, and management reporting.
• Simple to use and efficient with one-touch buttons and easy-to-understand menus for quick access to reports, system set up and tools.
• Get HP reliability, 6 second-per-page fax performance, and crisp black output at low cost using plain paper.
• Save desktop space with compact, dual-tone styling that blends into any environment.


Print technology: HP Thermal Inkjet
Color fax: No
Fax transmission speed (seconds per page): 6 sec per page
Memory, standard: 1 MB
Fax resolution, black (dots per inch): Up to 400 x 200 dpi
Input capacity, standard: Up to 50 sheets
Automatic document feeder capacity: Standard, 10 sheets
Output capacity, standard: Up to 50 sheets


Fax memory: Up to 50 pages
Fax broadcast: 5
Fax delayed sending: Yes
Fax forwarding: Yes
Junk fax barrier: Yes
Fax/phone/TAM interface: Yes
Polling: Yes
Remote retrieval: Yes
Distinctive ring detection: Yes
Speed dials, maximum number: Up to 50 numbers

Copier specifications

Copy resolution, black: Up to 300 x 300 dpi
Copy speed, black (copies per minute): Up to 4 cpm
Copy reduce/enlarge settings: 50 to 150%
Maximum number of copies: Up to 50 copies


Macintosh compatible: No
Power supply: Internal


Dimensions, std.(W x D x H): 14.33 x 9.96 x 5.28 in
Dimensions, max.(W x D x H): 14.33 x 12.76 x 9.84 in (with paper tray)
Weight, U.S.: 6.6 lb
Warranty, standard: One-year limited warranty backed by HP Customer Care, Service and Support