Ribbon supply assembly
Ribbon supply supporting structure in typewriters and...
Ribbon tension control means
Ribbon tensioning assembly
Ribbon tensioning device for ribbon cartridge
Ribbon tensioning means
Ribbon tensioning mechanisms
Ribbon tracking system
Ribbon tracking system
Ribbon transfer for color-on-demand resistive ribbon printing
Right hand margin control system
Right hand margin zone control system
Ring binder mechanism
Robust bit scheme for a memory of a replaceable printer...
Roll paper feed device for printing machine
Roll paper terminal end detecting unit and method
Roll paper type recording unit
Roll type stencil and loader
Rolled paper holder and image forming apparatus...
Rolled-paper holding mechanism and a printer including same