HP Indigo 6600 How-To Manual
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HP Indigo 6600 How-To Manual

HP Indigo 6600 How-To Manual

Digital press working with hp indigo electroink silver
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Working with HP Indigo ElectroInk Silver
for HP Indigo 6600 Digital Press,
HP Indigo 6800 Digital Press and
HP Indigo 6900 Digital Press
How-to Guide
May 2021

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Summary of Contents for HP Indigo 6600

  • Page 1 Working with HP Indigo ElectroInk Silver for HP Indigo 6600 Digital Press, HP Indigo 6800 Digital Press and HP Indigo 6900 Digital Press How-to Guide May 2021...
  • Page 2 This English version of this document must be used as the original instructions. The HP Indigo press is a Class 1 Laser Product containing high voltage power supplies and laser light sources. There is...

  • Page 3: Table Of Contents

    Limitations................................................2 Performance and recommendations .................................... 2 Preventing eye irritation........................................... 4 2 Quick guide / overview to installing HP Indigo ElectroInk Silver and working with it................5 3 Installing HP Indigo ElectroInk Silver......................................7 Installing the dedicated BID base and developer roller.............................7 Cleaning the ink station before building the HP Indigo ElectroInk Silver....................
  • Page 4 Printing instructions..........................................39...

  • Page 5: Overview

    An overview of Working with HP Indigo ElectroInk Silver. Who can benefit from reading this How-to Guide? This document is intended for owners, operators and CEs of HP Indigo 6600 (with Value Pack) / 6800 / 6900 Digital Presses for which HP Indigo ElectroInk Silver has been purchased.

  • Page 6: Limitations

    ● The press can print and calibrate HP Indigo ElectroInk Silver only as solid color. Silver gray-level calibration is not supported. Printing HP Indigo ElectroInk Silver as half tones reduces performance.
  • Page 7 BID bounce issues. ● It is recommended to use HP Indigo ElectroInk Silver with 2 hits in order to reach the OD (optical density) targets and best metallic appearance. The optimized color working point is based on 2 hits of ElectroInk Silver. Calibrations are performed on 2 hits of ElectroInk Silver.

  • Page 8: Preventing Eye Irritation

    ● Continuous color calibration (CCC) does not support ElectroInk Silver. It is not recommended to use CCC with silver jobs. If you decide to work with CCC make sure that the Auto-Null adding on Bypasses > Processes screen double-hit printing bypass is selected in the Print Care (CE level) > (see figure above).

  • Page 9: Quick Guide / Overview To Installing Hp Indigo Electroink Silver And Working With It

    Quick guide / overview to installing HP Indigo ElectroInk Silver and working with it The below procedure summarizes the steps needed to install the HP Indigo ElectroInk Silver and then work with this ink. For more information on each step, and troubleshooting, see additional instructions in this document.
  • Page 10 > Problem Solving > CE Applications. ● It is recommended to use HP Indigo ElectroInk Silver with 2 hits in order to reach the OD (optical density) targets. The optimized color working point is based on 2 hits of ElectroInk Silver.

  • Page 11: Installing Hp Indigo Electroink Silver

    Installing the dedicated BID base and developer roller HP Indigo ElectroInk Silver uses a dedicated BID base and developer roller, designed to be used ONLY for this ink. Make sure to install this BID base (P/N C8Q11A) and developer roller (P/N C8Q12A) before using the HP Indigo ElectroInk Silver.

  • Page 12: Cleaning The Ink Station Before Building The Hp Indigo Electroink Silver

    Silver-dedicated one. Regular BID developer roller Silver-dedicated BID developer roller (C8Q12A) Cleaning the ink station before building the HP Indigo ElectroInk Silver It is recommended to run the OFIR (On-press Fast Ink Replacement) wizard until the ink pathway between the ink tank and the BID are completely clean, with no traces of previously used ink.

  • Page 13: Building Hp Indigo Electroink Silver

    Follow these steps for building HP Indigo ElectroInk Silver. Basic definitions and assumptions for working with HP Indigo ElectroInk Silver: ● Silver-dedicated ink stations and BIDs — Use the ink stations and BIDs 1, 6 or 7 for HP Indigo ElectroInk Silver. ●...
  • Page 14 Perform the relevant BID Ink Flow Calibration, via Print Care Center > Maintenance > Component Calibrations > Ink System > BID Ink Flow Calibrations. BID Engage wizard, from Main Menu > Ink and BID > BID > Full BID Engage. Chapter 3 Installing HP Indigo ElectroInk Silver...

  • Page 15: Working With Hp Indigo Electroink Silver

    Recommended maintenance on page 20 Setting the press — Enabling double-hit printing on press for HP Indigo ElectroInk Silver on page 20 Disabling automatic color calibration It is recommended to disable the automatic color calibration feature. Go to Main Menu > Options > Print Preferences, and clear the Enable automatic color calibration option.

  • Page 16: Checking Silver Color Appearance

    Checking Silver color appearance Running the Silver Color Adjustment wizard prints the “HP ElectroInk Silver Color Adjustment” special job which allows checking the appearance of the solid / background / BID memories in the printed Silver color. To print the special job and check the Silver color appearance: Go to Print Care Center >...
  • Page 17 Run Print Cleaner Wizard step, select to print using BCS Cleaner or Print Cleaner, then define In the the number of cleaner pages to be printed (it is recommended to print at least 3). Run Silver Color Adjustment wizard will open automatically NOTE: You can Skip this step as the after it (see next step below).

  • Page 18: Performing Silver Color Adjustments

    Check the printed “HP ElectroInk Silver Color Adjustment” special (calibration) job for image memories or other print artifacts. Below is a good example of the printed job without any issues. ● If the special job output is satisfactory (no “image memory”, uniform background and color), there is no need for additional steps and you can Exit the wizard.
  • Page 19 ● “Casper” — No background appears (1) below the “image memory” section (where the background is visible), compared to the part under the word "image" (2). ● White frame — In the “image memory” section, memory is barely visible but there is a white "frame" encircling the memory images (indicated by the red arrows): star (1) and circle (2).
  • Page 20 Reduce the electrode voltage to reduce the ink layer (less Silver). Verify screen, print the job. After adjusting the BID voltages, click Next, and in the ● If the results are not satisfactory, select Perform another iteration and make more adjustments. Chapter 4 Working with HP Indigo ElectroInk Silver...

  • Page 21: Reducing Background Overlap

    ● If the results are satisfactory, select Silver adjusted successfully and proceed to Finish and Exit the wizard. Reducing background overlap When the job repeat length (RL) is less than the PIP length of 980 mm, there might be a heightened level of background in the overlapped area.

  • Page 22: Manual Overlap Adjustments

    BID Engage calibration and only then —if there is still overlapping— perform manual fine-tune corrections. IMPORTANT: Manual overlap adjustments are done for the specific job, and are not applicable to other jobs. Chapter 4 Working with HP Indigo ElectroInk Silver...
  • Page 23 Print one copy of the job and add several hits of silver in order to increase the background level. Then check where the excess background occurs. It is recommended to measure the actual printed area (including the background area) and compare to the repeat length defined in the job.

  • Page 24: Enabling Double-Hit Printing On Press For Hp Indigo Electroink Silver

    For jobs that require higher opacities of HP Indigo ElectroInk Silver, you can increase the number of Silver separations. NOTE: It is recommended to use HP Indigo ElectroInk Silver with 2 hits in order to reach the OD (optical density) targets. This can be done from the pre-press (DFE). Job Properties screen, Separations tab.
  • Page 25 – BID rollers (squeegee, cleaning, developer). – Electrode surface. – Cleaner roller - tray interface. ● Clean the cleaning station wiper. Weekly maintenance ● Clean outer surface of BID base from Silver residues. ● Extract the cleaning station, wiper, charge roller, ink tank. ●...

  • Page 26: Setting The Hp Indigo Electroink Silver From The Prepress Dfe

    Setting the HP Indigo ElectroInk Silver from the prepress DFE HP Indigo ElectroInk Silver should be added as extra output ink to the color strategy in the Color Engine Pilot. Adding Silver to the color strategy Follow these steps to add silver to the color strategy.

  • Page 27: Assigning The Color Strategy To The Ticket Template

    In the relevant Color Strategy, add Silver ink to the Extra Output Inks list: Edit the required color strategy. In Input tab, click the plus (+) button under the Extra Output Inks table. In the dialog box that opens, select the Silver ink from the designer Ink Book, and click the Select button.
  • Page 28 RIP the job and verify that the extra output ink is created. Chapter 5 Setting the HP Indigo ElectroInk Silver from the prepress DFE...

  • Page 29: Removing And Storing Electroink Silver And Bid

    Removing and storing ElectroInk Silver and If you are not using the HP Indigo ElectroInk Silver for a few days, do the following: Activate the ink pump for two minutes. Drain the ink into a clean container. The ElectroInk Silver solution can be kept in a closed container up to one month, provided that it is shaken once a week.
  • Page 30 Replace BID wizard. Touch Replace. Follow the Remove the BID and clean it. While manually rotating the BID, clean the rubber developer roller and the metallic squeegee roller with a lint-free wipe soaked with imaging oil. Put the old BID into the nylon bag that came with the new BID. Store the old BID in the original box for up to one year, for later reuse.

  • Page 31: Troubleshooting

    Troubleshooting Troubleshoot the HP Indigo ElectroInk Silver on the HP Indigo press. Table 7-1 Troubleshooting Symptom / Issue Solution Build ink: Density calibration Verify TIC (Tank Ink Controller) is clean (lenses area). failure Replace TIC. Dilute 200 ml (not more!) and add 200 ml of imaging oil.

  • Page 32: Ui Notifications

    Table 7-1 Troubleshooting (continued) Symptom / Issue Solution TE band (Silver accumulation at Calibrate BID engage in case BID engage not symmetrical between front trailing edge area) and rear. In overlap prevention, increase leading edge by 10 mm or more. Use leading edge color variation correction (Print Care Center >...

  • Page 33: Accumulation Of Background At The Leading Edge

    Table 7-2 UI notifications (continued) # Scenario Example Old text UI notification Actual printing logic 3 Disengage limit was Image Repeat length is above Current trailing edge Overlap is disabled. reached (e.g. overlap placement 0; Job maximum. Maximum settings are invalid. disengage calculation RL 990;...
  • Page 34 Reduce manual correction if there is an issue with the LE area of frame n+1. Increase manual correction if band still visible. Leading edge color variation correction from Print Preferences > Print Mode Consider using the (per need). Consider changing the LE color variation settings, per need (under Print Care Center > Maintenance >...

  • Page 35: Appendix A Full Color Calibration

    Full color calibration It explains full color calibration. ● HP Indigo ElectroInk Silver is visually stable, therefore it is not necessary / not recommended to perform Full Color Calibration (FCC). ● Full Color Calibration for Silver changes the BID electrode voltage only. (This can also be done...
  • Page 36 Measuring Silver ink OD ● Silver ink OD should be measured in M3 conditions (with polarizers). This can be done by the external eXact spectrophotometer. ● The on-press spectrophotometer (SPM) can measure only in M0 conditions. ● In order to measure the OD of the silver ink with an M0 external spectrophotometer, you need to measure the OD of Silver printed by 2 hits, subtracted by the OD of Silver printed over 1 hit...

  • Page 37: Appendix B Installing The New Piston Spacer (Shim) On The Ink Cartridge Holder

    The piston spacer (shim) is not necessary for other inks (other than Silver and Premium White), however, if you use another ink instead of HP Indigo ElectroInk Silver in a station where the shim is installed, you can leave the shim in place. If you want to use ElectroInk Silver at another station where the shim is not installed, you need to move the shim there.
  • Page 38 Remove the ink cartridge assembly from the ink cabinet: Remove the 3 Allen screws that attach the cartridge holder to the ink cabinet: Appendix B Installing the new piston spacer (shim) on the ink cartridge holder...
  • Page 39 Disconnect the air connection pipe from the ink cartridge assembly: Cartridge holder air shaft Disconnect the cartridge holder Molex connector: Installing the new piston spacer (shim) on the ink cartridge holder...
  • Page 40 Disconnect the LIC pump hose from the ink cartridge holder: Remove the cartridge holder from the ink cabinet: Molex connector Cartridge holder air shaft Appendix B Installing the new piston spacer (shim) on the ink cartridge holder...
  • Page 41 Remove the 4 Allen screws (3 mm) from the cartridge holder air shaft top: Pull out the shaft from the cartridge holder assembly, and remove the air shaft’s rubber seal: Remove the air shaft’s rubber seal: Installing the new piston spacer (shim) on the ink cartridge holder...
  • Page 42 Place the piston spacer (shim) onto the air shaft and reinstall the rubber seal: Rubber seal Piston spacer (shim) (P/N CA341-86500) Reinstall the ink cartridge assembly into the ink cabinet: IMPORTANT: When reinstalling, make sure that all the connections are secure. Return the air shaft into the ink cartridge holder and reinstall and tighten the 4 Allen (3 mm) screws that you removed in step 1f above.
  • Page 43 Service and support To obtain service, please contact the customer care center within your country/region: Europe: Belgium: +32 (0)2 626 4803 France: +33 (0)1 57 32 41 07 Germany: +49 (0)69 38 07 89 193 Ireland: +353 (0)1 656 9760 Italy: +39 02 69430637 Luxembourg:...

  • Page 44: Appendix C Service And Support

    COVER Paper weight 250 g Page size 8.27 x 11.00 in (21 x 27.94 cm) Printing HP Indigo digital press Simplex/duplex Front cover - duplex Rear cover - simplex Color Full color - high resolution Coating Lamination - shiny front and rear covers...
  • Page 45 This is an HP Indigo digital print. www.hp.com/go/indigo PN: CA394-28380...

This manual is also suitable for:

Indigo 6800Indigo 6900

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