Question

Who invented the first duplication machine?

• A. Albert Blake Dick
• B. A.D Klaber
• C. James Watt
• D. David Gestetner

Answer 1

Answer:

C. James Watt

Duplicators

• Duplicators are used for taking multiple copies of the stenciled matter.
• First duplication machine was invented by James Watt (in  1780)
• Duplicatoir is otherwise known as Multicopier

Various duplicating machines

Cyclostyle  

• Cyclostyle  was the earliest form of Stencil copying
• Cyclostyle was invented by David Gestetner(1881) (Got patent in 1890)

Mimeograph

• Mimeograph machine is also known as Stencil duplicator
• When compared to spirit  duplication mimeograpy produces more legible(clean) images
• While the typewriter Ribbon must be disabled preparing stencils , so that the sharp type element strikes the stencil directly.
• Mimeograph was invented by Albert Blacke Dick (in 1884)

Spirit duplicators

• Spirit duplicators were also known as Ditto Machine
• Roneo machine was introduced by A.D Klaber (in 1899)

Photocopier

• Photocopier uses a technology called Xerography
• Xerography process uses electro static charge on a light sensitive photocopier to attract and transfer torner particles on the paper to form characters and images.