Phaser 6121MFP Service Manual 1-3
General Information
Printer Configurations
The Phaser 6121MFP is available in three configurations. The 3-in-1 version 
connects to the host by USB and provides platen scan. The 4-in-1 versions are 
expandable with both the options Tray 2 and Duplex Unit to enable 2-sided 
printing. The following table lists shared features of all configurations.
The following table lists printer features by configuration.
Features Specification
Processor Speed 120 MHz 
Max Print Speed (ppm) color/mono 5/20
Memory 128 MB
USB Port Yes
Print Resolutions (dpi):
Draft
Enhanced
600x600
1200x600
Copy Speed with auto document 
feeder
Color: 3 cpm (600 x 300 dpi)
Monochrome: 10 cpm (600 x 300 dpi)
Monochrome: 20 cpm (300 x 300 dpi)
Scan speed (Phaser 6121MFP/N or /D 
printer configurations only.)
Color:
600 x 600 dpi: 9.94 mm/second
600 x 300 dpi: 19.88 mm/second
Monochrome:
600 x 600 dpi: 29.81 mm/second
600 x 300 dpi: 59.62 mm/second
300 x 300 dpi: 119.5.25 mm/second
Scan Resolutions 150 x 150 dpi
300 x 300 dpi
Features
 Configuration
6121/S 6121/N 6121/D
10/100 Ethernet Port No Yes Yes
ADF No Yes Yes
Duplex Unit No Optional Yes
500-Sheet Feeder (Tray 2) No Optional Yes