PGA 202
Off Set Printing
Chapter 2 : Types of Lithographic Presses
DAE Printing & Graphic Art Technology | Second Year
Short Questions
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
A Perfected press in offset printing is a press that prints on both sides of a sheet in a single pass, enhancing efficiency and reducing production time.
Web-fed presses use rolls of paper for high-volume printing, while sheet-fed presses use individual sheets for higher quality and customization.
A web break detector stops the press and locates tears in the paper during offset printing to prevent damage.
A unit type sheet-fed press prints one color at a time, with larger presses having multiple units for additional colors.