Epson WorkForce Pro WF-7820 All-in-One Inkjet Printer - Manual (Page 372)

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Image data Color:
48 bits per pixel internal (16 bits per pixel per color internal)
24 bits per pixel external (8 bits per pixel per color internal)
Grayscale:
16 bits per pixel internal
8 bits per pixel external
Black and white:
16 bits per pixel internal
1 bit per pixel external
Light source LED
Parent topic: Technical Specifications
Fax Specifications
Fax type Black-and-white and color fax capability
Support line
Standard analogue telephone lines, PBX (Private Branch Exchange)
telephone systems
Speed Up to 33.6 kbps