The Ricoh MP 5055 is a black and white, multifunction printer/copier/scanner with a print speed of 50 pages per minute (ppm) and a maximum resolution of 1200 x 1200 dpi. It has a 2GB RAM memory, 320 GB HDD, and supports various network protocols and operating systems. 

Here's a more detailed breakdown of the Ricoh MP 5055's specifications:

General:

• Warm-up time: 20 seconds.
• First output speed: 4.0 seconds (print), 2.9 seconds (copy).
• Continuous output speed: 50 ppm (print/copy).
• Memory: Standard 2 GB.
• HDD: 320 GB.
• Dimensions (W x D x H): 587 x 684 x 788 mm (MF only).
• Weight: 62.5 kg (MF only).
• Power: 220-240 V, 50/60 Hz. 

Printer:

• Printer languages: PCL5e, PCL6, PDF Direct, PS3 (Emulation).
• Print resolution: Maximum 1,200 x 1,200 dpi.
• Interfaces: Standard: USB Host I/F, Ethernet 10 base-T/100. base-TX/1000 base-T.
• Network protocols: TCP/IP (IP v4, IP v6).
• Supported operating systems: Windows Vista/7/8/8.1/10, Windows Server/2008/2008 R2/2012/2012 R2, Mac OS X v.10.7 or later, UNIX environments (Sun Solaris, HP-UX, SCO OpenServer, RedHat Linux). 

Copier/Scanner/Fax:

• Maximum monthly volume: 1,000,000.
• Resolution: 1200 x 1200 dpi.
• Copier type: Office Copier.
• Fax capabilities: Includes fax features. 

Other Features:

• Smart Operation Panel: Allows quick and easy access to copying, printing, scanning, and faxing. 
• Document Server: 3,000 file capacity with folder management and password protection. 
• Security: User authentication, print quotas, locked print, and a DataOverwriteSecurity System (DOSS). 
• Eco-friendly features: ENERGY STAR certified and meets EPEAT Gold criteria.