RepRap Guru Prusa i3 Instruction sheet
Popular 3D Printer manuals by other brands

Revolution 3D Printers
Revolution 3D Printers INFINITY 3D quick guide

Pxmalion
Pxmalion Core I3 Operation instructions

Graphy
Graphy Tera Harz Cure user manual

TRONXY
TRONXY X5SA installation instructions

Ackuretta
Ackuretta FreeShape 120 quick start guide

FLASHFORGE 3D PRINTER
FLASHFORGE 3D PRINTER EN-A01 user guide