TL-550X

Print speed 22ppm (A4) / 23ppm (Letter)
Resolution (DPI) 1200x1200dpi (print,copy,scan) / ADF
Frist print out time Less than 7.8 seconds Duplex mode Manual
Processor Speed600MHz Memory128MB Input Tray 250 pages
Output Capacity150 pages Max. Monthly volume 20,000 pages
Connectivity Hi-speed USB 2.0 Net : IEEE802.3 10/100 Base – TX
WIFI : IEEE 802.11 b/g/n

Print speed 33ppm (A4) / 35ppm (Letter)
Resolution (DPI) 1200x1200dpi (Max)
Frist print out time Less than 8.5 seconds Duplex mode Auto
Processor Speed 600MHz Memory 256MB Input Tray 250 pages
Output Capacity 150 pages Display 2 Line LCD
Optional tray Yes (500*2 pages)

44PPM 4 IN1 Frist print out time Ready : 6.0s Sleep:9.0s
Max monthly volume 2,000-15,000 pages
Processor Speed 1Ghz Memory 1GB/1GB
Copy Speed 44ppm/46ppm|Double:32spm/23spm
Scan speed 42ppm/45ppm|Double:20spm/20spm
Modem Speed Less than 3s/pages;33.6kbps Quick Dial 500
Paper input tray 250pages Paper output tray 150pages