It is an all-in-one printer that is a part of HP's L7700 series that is designed for the small sized office.

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The HP Officejet Pro L7780 is an all-in-one printer that is a part of HP's L7700 series that is designed for the small sized office, with the ability to print, copy, scan and fax, all in color. It can print up to 35 pages per minute, with the ability to print 5 pages per minute in color at its best quality. It can print up to 4800 x 1200 dpi in color, which is supplied by the 4 ink cartriges; black, cyan, magenta and yellow. It has a larger standard input capacity of 600 sheets compared to lower models, with a 150 sheet max output capacity, and can print on a wide range of paper formats and sizes. Also unlike lower models, it comes with two paper trays as a standard. The scanner is a 8.5" x 14"  flatbed ADF, which is larger than the lower models, with a maximum optical resolution of 2400 dpi (up to 19200 dpi enhanced). The automatic feeder can handle up to 50 sheets with 256 levels of greyscale. When used as a copier, it can handle up to 99 copies at once at 34 copies per minute (color) at a resolution of 1200 x 600 dpi. For faxing, it can handle up to 125 pages in memory with a resolution of 300 x 300 dpi, at a speed of 3 seconds per page.  There are several fax options (below), including up to 99 stored speed dial numbers.

Printing specifications
  • Print speed black (draft, letter): Up to 35 ppm
  • Print speed, black (normal quality mode): Up to 16 ppm
  • Print speed color (draft, letter): Up to 34 ppm
  • Print speed, color (normal quality mode): Up to 15 ppm
  • Print speed, black (best quality mode): Up to 5 ppm
  • Print speed, color (best quality mode): Up to 5 ppm
  • Monthly duty cycle: Up to 7500 pages
  • Processor speed: 192 MHz
  • Print technology: HP Thermal Inkjet
  • Print resolution, black: Up to 1200 x 1200 dpi
  • Print resolution, color: Up to 4800 x 1200 optimized dpi color (when printing from a computer and 1200 input dpi)
  • Resolution technology: PhotoREt III enhanced color-layering technology
  • Ink cartridges: 4 (1 each black, cyan, magenta, yellow)
Paper handling
  • Paper tray(s), standard: 2
  • Paper tray(s), maximum: 2
  • Input capacity, standard: Up to 600 sheets
  • Input capacity, maximum: Up to 600 sheets
  • Output capacity, standard: Up to 150 sheets
  • Output capacity, maximum: Up to 150 sheets
  • Duplex printing (printing on both sides of paper): Automatic (standard)
  • Document finishing: Sheetfed
  • Media sizes, standard: Letter, legal, statement, executive, 3 x 5 in, 4 x 6 in, 5 x 7 in, 5 x 8 in, 4 x 10 in, 4 x 11 in, 4 x 12 in, 8 x 10 in, envelopes (No. 10, Monarch, DL)
  • Media sizes, custom: 3 x 5 to 8.5 x 14 in
  • Media types: Paper (inkjet, plain, photo), envelopes, labels, cards (greeting, index), transparencies
  • Media weight, recommended: 20 to 24 lb
Memory/print languages/typefaces
  • Memory, standard: 64 MB
  • Memory, maximum: 64 MB
  • Memory slots (4 slots): CompactFlash I/ II, Secure Digital, MultimediaCard (MMC), Secure MMC, xD, Memory Stick, MagicGate Memory Stick, Memory Stick Duo, and Memory Stick PRO
  • Print languages, standard: HP PCL 3 GUI
  • Typefaces (2 built-in): Courier, Letter Gothic; No scalable fonts
Scanner specifications
  • Scanner type: Flatbed, ADF
  • Scan resolution, enhanced: Up to 19200 dpi
  • Scan resolution, optical: Up to 2400 dpi
  • Bit depth: 48-bit
  • Levels of grayscale: 256
  • Automatic document feeder capacity: Standard, 50 sheets
  • Scan size, maximum (flatbed): 8.5 x 14 in
Copier specifications
  • Copy resolution, black: Up to 1200 x 600 dpi
  • Copy resolution, color: Up to 1200 x 600 dpi
  • Copy speed, black (copies per minute): Up to 35 cpm
  • Copy speed, color (copies per minute): Up to 34 cpm
  • Copy reduce/enlarge settings: 25 to 400%
  • Maximum number of copies: Up to 99 copies
Fax specifications
  • Fax transmission speed (seconds per page): 3 sec per page
  • Fax resolution, black (dots per inch): Up to 300 x 300 dpi
  • Fax memory: Up to 125 pages
  • Fax broadcast: 20
  • Fax delayed sending
  • Fax forwarding
  • Junk fax barrier
  • Polling
  • Distinctive ring detection
  • Speed dials, maximum number: Up to 99 numbers
  • Connectivity, standard: 1 USB 2.0, 1 Ethernet, 1 PictBridge, 1 Wireless 802.11g/b, 1 RJ-11 fax
  • Connectivity, optional: HP bt300 Bluetooth Wireless Printer Adaptor Q3395A
  • Macintosh compatible
  • Print drivers, standard: HP PCL 3 GUI
  • Compatible Operating Systems: Windows 2000; Windows XP Professional x64; Windows Vista(R); Mac OS X v 10.3.9; Mac OS X v 10.4 or higher
  • Product Dimensions(W x D x H): 20.91 x 19.09 x 17.48 in
  • Dimensions, max.(W x D x H): 20.91 x 25.43 x 17.48 in
  • Product weight: 40.76 lb
  • Warranty: One-year limited hardware warranty backed by HP Customer Care, service and support; one-year technical phone support, plus a toll-free number
  • What's included: HP Officejet Pro L7780 Color All-in-One; duplexer; 2 printheads; HP 88 Black Officejet Ink Cartridge (~850 pages); HP 88 Cyan Officejet Ink Cartridge; HP 88 Magenta Officejet Ink Cartridge; HP 88 Yellow Officejet Ink Cartridge: composite yield (~900 pages); CD-ROMs (for software and Windows and Mac printer drivers); setup poster; Getting Started Guide; power supply; power cord; phone cord.
  • Software included: Printer Drivers for Mac and Windows, HP Photosmart Essential Software, HP Photosmart Express, Readiris Pro OCR software
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