Everything you expect from an A4 mono printer, with the added versatility of A3 output

A4 print speeds of up to 40ppm (A3 up to 22ppm), time to first print 5 seconds
Duplex printing for professional documents reducing paper costs (standard on B840dn/B840dtn)
High capacity toner print cartridge up to 20,000 A4 pages for minimum user intervention
Network ready with PCL/Postscript built-in for maximum platform flexibility and application support
Sleep mode reduces power consumption to less than 1.2W, conserving energy, lowering costs and your carbon footprint
Transform your black and white documents with the B840, the A3 printer with the speed, versatility and the footprint of an A4 device. With sharper mono output, provided by OKI's innovative digital LED technology, the B840 brings A4 and A3 mono printing closer to your small to medium workgroup.
Gone are the days of having to decipher your spreadsheets and diagrams with a magnifying glass. The B840 provides the convenience of fast desktop A4 printing speeds of up to 40ppm with the capability to print your documents at a size that gives them and you a new perspective. The B840 is competitively priced when compared with many A4 printers and brings affordable, A4 and A3 mono printing, to every business, large or small.
Built to last, with reliable digital LED printing technology, and three-year warranty at no extra cost, The B840 is designed to offer low running costs and a reduced total cost of ownership that puts A3 printing in the reach of businesses and workgroups in every sector. What's more it comes with a three-year warranty at no extra cost, so you can absolutely rely on it.

Full specifications
Print speed : A4: 35ppm; A3: 20ppm; Duplex A4/A3: 20ppm / 12ppm Time to first print : 5 seconds Warm up time : Up to 19 seconds Processor speed : PowerPC464FP 533MHz Paper capacity :
Tray 1 : 530 sheets of 80gsm;
Multipurpose ( Multi purpose ) tray: 100 sheets of 80gsm Maximum paper capacity : 1,160 sheets of 80gsm Paper sizes : Tray 1: A3, A4, A5, B4, B5; Tray 2: A3, A4, A5, B4, B5; Multipurpose ( Multi purpose ) tray: A3, A4, A5, B4, B5, A6; 10 Envelopes ( Com9 ( Com 9 ) , Com10 ( Com 10 ) , DL Monarch C4, C5 ) ; Labels ( A4 ) , Custom size: Width 76-297mm Length 148-431.8mm; Duplex: A3, A4, A5, B4, B5; Custom size: Width 148.5-297mm Length 182-420mm Paper weight : Tray 1/2: 60 to 176gsm; Multipurpose ( Multi purpose ) tray: 60 to 200gsm; Duplex: 60 to 105gsm Duplex : Standard Duty cycle : Maximum: 100,000 pages/month ;
Recommended : 20,000 pages per month Paper output : 250 sheets face down 100 sheets face up 80gsm Print Resolution : 600 x 2400dpi 600 x 1200dpi 600 x 600dpi 300 x 300dpi Connectivity : 10/100-TX Ethernet USB 2.0 HiSpeed ( Hi Speed ) IEEE 1284Bidirectional ( Bi directional ) Parallel Printer languages : PCL5e CL5 SIDM ( IBMPPR ( IBM PPR ) EPSONFX ( EPSON FX ) ) OS : Windows XP XP x64, Server 2003 ( 32-bit & 64-bit ) , Vista ( 32-bit & 64-bit ) , 7 ( 32-bit & 64-bit ) , Server 2008 ( 32-bit & 64-bit ) , Server 2008 R2;
Mac OS X 10.3.9 - 10.6.4; Unix/Linux using PPD Memory : Standard RAM: 128MB; Maximum RAM: 640MB Warranty : 3 years extended warranty upon registration within 30 days of purchase Dimensions ( HxWxD ) : 373 x 485 x 521mm ( max 575mm ) Weight : 28 kgs

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