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HP Indigo 7000 Digital Press - Replacing the PIP underlayer

Replace the PIP underlayer when it is damaged.
To replace the PIP underlayer:
  • Remove the old PIP underlayer
  • Clean the PIP drum
  • Install the new PIP underlayer.
    Special tools and jigs:
  • PIP underlayer installation jig
  • PIP underlayer scrape
  caution:
Wear safety glasses and gloves for this procedure.

Removing the old PIP underlayer

  1. Remove the following press components to access the PIP underlayer:
    • All BIDs
    • The charge roller
    • The cleaning station wiper blade and the cleaning station
    • The external heater lamps and the cover
    • The PIP foil
  2. Use the inching buttons to rotate the drum and detach the edge of the PIP underlayer.
  3. Pull the PIP underlayer as it separates from the PIP drum, and discard it.

Cleaning the PIP drum

  1. Cover the PIP holder slit with masking tape.
  2. Place a sheet of paper beneath the drum to catch the glue residue that falls when cleaning the PIP drum.
  3. Use clean imaging oil to thoroughly wet the PIP drum.
  4. While slowly rotating the drum clockwise using the inch-safe method, use a scraping tool to remove adhesive from the drum surface . When all the glue has been removed, wipe the drum with a lintfree cloth soaked in imaging oil.
  5. Using a lint-free cloth soaked in IPA, thoroughly wipe and clean the PIP drum. Make sure that no particles of dirt remain on the PIP drum surface.
  6. Remove the masking tape from the PIP holder slit and wipe the slit area with a lint-free wipe.
  7. Insert a sheet of paper into the PIP holder slit to clean and dry the inside of the slit.

Installing the new PIP underlayer

  1. Make sure the press drums are disengaged before starting this part of the procedure.
  2. Mount the PIP underlayer installation jig.
    1. Push the spring catches on the PIP underlayer installation jig.
    2. Insert the jig from the input side of the press. Make sure the spring catches stay facing upwards, and slip underneath the horizontal bar on the press.
    3. Catch the hooks on each side of the first charge roller rail. Pull the jig back to make sure it is caught.
    4. Push the jig towards the rear wall of the press to position it correctly.
    5. Rest the jig inside roller on the PIP drum.
    6. Release and catch the spring loaded arms to the horizontal bar on the chassis.
    Figure : PIP underlayer installation jig
    1
    Hooks — hook onto charge roller rail
    2
    Nip rollers — keep the PIP underlayer taut and flat
    3
    Spring catch — hook onto the press walls
    4
    Nip roller spring
    5
    Spring catch hook — shown pressed. Release when in position
    6
    Inside roller — rests on the PIP drum
    Figure : Loading the spring catches on the jig
    Figure : Hooking the jig on the charge roller rails – note position of spring catches
  3. Open the PIP holder handle and open the PIP jig mounting nip.
  4. Fold the PIP underlayer between the white mounting slip and the metal strip.
    Figure : PIP underlayer — side facing user during installation
    1
    PIP underlayer, covered with polyester protective film
    2
    Metal strip
    3
    White mounting strip
    4
    Transparent mounting strip
    5
    Tab to remove polyester protective film
    6
    Fold here
  5. Insert the new PIP underlayer through the jig nip rollers with the glossy side facing up.
    1. Insert the underlayer between the two jig nip rollers, and above the inside roller.
    2. Insert the mounting tab completely into the PIP holder slit, up to the metal spacing strip. Make sure that the mounting strip is inserted evenly across the width of the PIP drum. Verify that the PIP holder slit edge and the metal spacing strip edge contact evenly across the width of the PIP drum.
    3. Close the PIP latch.
    4. Close the PIP jig nip rollers.
    Figure : PIP underlayer path through the jig — note closure of the PIP jig nip
    note:
    Check that the edge of the PIP underlayer is parallel to the edge of the drum, and that it is centered between the PIP drum shoulders. If not, then unroll the underlayer and reposition it.
  6. Unroll the PIP underlayer and start peeling the edge of the transparent protective layer from the PIP underlayer..
  7. While maintaining tension on the underlayer, use the inching button to rotate the PIP drum clockwise until the underlayer is completely wrapped around the PIP drum and the transparent cover is completely peeled off. The underlayer goes downward with the rotation, and the installation jig presses it firmly to the PIP drum surface.
  8. Feel the surface of the underlayer to check for bumps or damage. Verify that the underlayer is not on the PIP drum shoulders.
  9. Verify the position of the metal strip.
  10. Open the PIP latch.
  11. Carefully peel away the tape holding the PIP underlayer mounting strip, and remove the strip from the PIP holder slit.
  12. Firmly press down the edges of the underlayer around the holder slit starting from the center, towards the edges.
  13. Remove the jig. Release the spring hooks, the lift and remove the jig from the press
  14. After you have installed the new PIP underlayer:
    • Using a lint-free cloth, spread imaging oil evenly over the entire surface of the underlayer. The imaging oil helps to hold the PIP foil to the drum.
    • Install a new PIP foil.
    • Reinstall the PTE lamp/air knife.
    • Reinstall the cleaning station blade and cleaning station.
    • Reinstall all BIDs.
    • Reinstall the external heater lamps and cover.
    • Reinstall the charge roller.
  15. Update your system as follows.
    1. On the touchscreen, select Main Menu, Problem Handling, and Replace Part. The Replace Part window opens.
    2. Fill in the required information.

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