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20 Chapter 2 Getting started
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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.
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.
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.
Figure 2-8. Ink transfer from the PIP to the blanket
Figure 2-9. Ink transfer from the blanket to the substrate
Blanket
ITM drum
First transfer
PIP - ITM nip
PIP drum
PIP drum
Blanket
ITM drum
Second transfer - ITM
impression drums nip
Impression drum
Содержание Indigo press 3050
Страница 1: ...HP Indigo press 3050 User guide English version ...
Страница 2: ...hp indigo press 3050 user guide ...
Страница 13: ...12 Chapter 1 Preface ENWW ...
Страница 23: ...22 Chapter 2 Getting started ENWW ...
Страница 41: ...40 Chapter 4 HP Indigo press 3050 basics ENWW Figure 4 5 Related topics ...
Страница 53: ...52 Chapter 5 The main windows ENWW ...
Страница 83: ...82 Chapter 6 Operating the press ENWW ...
Страница 91: ...90 Chapter 7 Operator routines ENWW Figure 7 7 Inner front wall O O O O ...
Страница 99: ...98 Chapter 7 Operator routines ENWW ...
Страница 131: ...130 Chapter 9 Blanket ENWW 6 Click Next Figure 9 22 First transfer Wizard define the correct pressure here Rear Front ...
Страница 136: ...ENWW 135 10PIP This chapter contains the following sections z Overview z Replacing the PIP ...
Страница 189: ...188 Chapter 11 Paper transport ENWW ...
Страница 190: ...ENWW 189 12Impression drum This chapter contains the following sections z Overview z Replacing the impression paper ...
Страница 212: ...ENWW 211 15Scorotron This chapter contains the following sections z Overview z Scorotron maintenance procedures ...
Страница 219: ...218 Chapter 15 Scorotron ENWW ...
Страница 254: ...ENWW 253 17Pre transfer erase PTE This chapter contains the following sections z Overview z Cleaning the PTE cover ...
Страница 257: ...256 Chapter 17 Pre transfer erase PTE ENWW ...
Страница 271: ...270 Chapter 19 Chiller ENWW ...
Страница 272: ...ENWW 271 20Long term shutdown This chapter contains the following section z Long term shutdown ...
Страница 287: ...286 Appendix B Service and support ENWW ...