Transferring To The Blanket; Printing The Image - HP Indigo press 3050 User Manual

Transferring to the blanket

The PIP comes in contact with the intermediate transfer member (ITM) drum, which is
covered by the blanket. The positively charged blanket attracts the inked image. The
image is transferred from the PIP to the blanket (this is the first transfer). There should be
no residue on the PIP.
Figure 2-8. Ink transfer from the PIP to the blanket
The ITM blanket is hot and melts the ink particles into a thin, molten film.

Printing the image

With a substrate between them, the impression drum presses against the ITM, causing
the melted ink image to solidify and adhere to the substrate.
Figure 2-9. Ink transfer from the blanket to the substrate
The process is repeated for each separation (usually four) to form four colors on the
printed substrate. During each rotation of the ITM and the impression drums, one color
separation is transferred to the substrate.
20 Chapter 2 Getting started
PIP drum ITM drum
PIP drum Impression drum
First transfer
PIP - ITM nip
Blanket
Blanket
ITM drum
Second transfer - ITM
impression drums nip
ENWW