Videojet DataFlex 6530 Service Manual - Rev AA D-1
Appendix D Theory Of Printing
D.1 Introduction
The following section explains the theory of printing of the thermal transfer printer (Figure D-1):
• The printhead (item 6, Figure D-1) contains miniature heating elements under a glass
coating (300 dpi - 12 dots/min).
• A carrier ribbon (item 5), with ink bonded to one side is used as the printing media.
• The printhead presses the thermal transfer ribbon onto the substrate (item 2), with
the ink side of ribbon in contact with the substrate.
• Print elements heat small areas of the ribbon and this transfers the ink to the target
substrate.
• The printhead and the substrate move relative to each other.
• The print elements are programmable and controlled to create an image.
1
2
3
4
5
6
1. Transferred Ink
2. Substrate
3. Platen
4. Ink
5. Base Film
6. Thermal Printhead
Figure D-1: Printing Process