TASKalfa 6551ci

  • Tough and robust, a mark of unrivalled performance
  • Up to 65/65 A4 pages per minute in color/mono
  • Fast first copy time at around 5.4 seconds for mono and 6.2 seconds for color
  • Standard 320GB hard disk capacity and 4GB RAM to meet heavy duty tasks requirements
  • Standard 4,150 sheets paper handling capacity and is expandable to maximum 7,650 sheets
  • Support various media type and capacity
  • Support Banner Print
  • 10.1″ color touch screen panel

“Copying” Demonstration

“Covers & Page Inserts” Demonstration

“Form Overlay” Demonstration

“Sending” Demonstration

Catalog PDF Download
3 MB


Main Function Copy, Print, Scan, Fax (Optional)
Writing Method Semiconductor Laser
CPU P1022 (Dual Core) / 1067MHz
Print Speed (A4)(Simplex) , Mono/Color 65/65 cpm
Scanning Speed (A4, 300dpi) , Simplex (Mono/Color) 120/120 ipm
Scanning Speed (A4, 300dpi) , Duplex (Mono/Color) 200/150 ipm
Memory/ HDD Capacity 4GB/320GB
Warm Up Time 60 seconds
Paper Capacity , Standard 4,150 sheets [2 x 500 sheets (Cassette) + 2 x 1,500 sheets (Cassette) + 150 sheets (MPT)]
Paper Capacity , Maximum 7,650 sheets (Main Unit + PF-780 + PF-740)
Paper Size , Cassette Min. A5R - Max. A3+ (12”x18”)
Paper Size , MPT Min. A6R - Max. A3+ (12”x18”) & Banner Print of 1,220mm
Paper Weight , Cassette 60 to 256 g/m²
Paper Weight , MPT 60 to 300 g/m²
Duplex Printing Paper size: B5 (250 x 176mm) to A3+ (12”x18”); Paper weight: 60 to 256 g/m²
Control Panel 10.1 inch Color Touch LCD Panel
Dimension (W x D x H) (Main Unit) 1,039mm x 801mm x 1,347mm (with Control Panel)
Weight (Main Unit) 190kg
Power Consumption (Standard configuration) , Copy/Print Mode , Mono 1,350W or less
Power Consumption (Standard configuration) , Copy/Print Mode , Color 1,480W or less
Power Consumption (Standard configuration) , Stand-by Mode 300W or less
Power Consumption (Standard configuration) , Energy Saver 1.8W or less
Noise (ISO7779/ ISO9296) , Copy/Print Mode 75dB(A)
Noise (ISO7779/ ISO9296) , Stand-by Mode 58dB(A)

Print Functions

Resolution 600 x 600 dpi; 9600 x 600 dpi level
PDL PRESCRIBE, PCL6, KPDL3 (PostScript 3 compatible), XPS
Direct Print Yes
Supported Protocol NetBEUI, IPv6, IPv4, IPX/SPX, IPSec, IPP, IPP over SSL, WSD Print, Bonjour
Operating System Supported Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10; Apple Macintosh OS 10.x
Interface USB2.0 High Speed x1;1000BASE-T/100BASE-TX/10BASE-T; USB Host interface (USB Host) x4
USB Memory Printing Standard
USB Memory Printing Format TIFF, JPEG, PDF, XPS
e-MPS Printing Job retention and Document Box function

Copy Functions

Copy Size Max. A3 (Ledger) - Min. A6R
Resolution 600 x 600 dpi; 9600 x 600 dpi level
First Copy Time Mono: 5.4 seconds; Color: 6.2 seconds
Zoom Ratio , Manual 25% to 400% (1% per Step)
Zoom Ratio , Pre-defined 5R5E
Multiple Copy 1 to 9999

Scan Functions

Color Selection Auto Color (Color/Gray); Auto Color (Color/B&W); Full Color; Grayscale; Black & White
Resolution 600dpi, 400dpi, 300dpi, 200dpi, 200x400dpi, 200x100dpi
File Format TIFF, JPEG, XPS, PDF (MMR/JPG/High-compression PDF), Searchable PDF
Image Type Mode Text, Photo, Text + Photo, OCR
Transmission Type Scan to SMB; Scan to E-mail; Scan to FTP or FTP over SSL; Scan to USB; TWAIN Scan; WSD Scan; WIA Scan
Address Storage 2,000 addresses (Common address list), 500 groups (Group address list)


Fax Functions (Optional)
Original Size Max. A3 (Ledger) - Min. A5 (Statement)
Paper Size Max. A3 (Ledger) - Min. A5 (Statement)
Coding Method MMR, MR, MH, JBIG
Transmission Speed 33.6/31.2/28.8/26.4/24.0/21.6/19.2/16.8/14.4/12.0/9.6/7.2/4.8/2.4 kbps
Memory Standard: 12MB; Maximum:120MB (with optional fax memory)
G3 FAX/ Dual FAX/ Network FAX Yes
Internet FAX Optional Internet FAX Kit(A)
  • Winter 2015 BLI Pick Award – Outstanding 61-to-70ppm A3 color MFP
  • 2014 BLI Highly Recommended
  • Blue Angel eco label
  • Common Criteria


2014 BLI Highly Recommended Blue Angel Energy Star Common-Criteria