FCO 68-6057 Rev. Ewhp-hou4.cold.extweb.hp.com/pub/scitex/HP_Scitex... · 16. Starting Up the...

FCO: 68-6057 Rev. E

PRODUCT:

NUR Fresco II

PART/ASSEMBLY:

01-4004

FCO Kit P/N:

09-7123

ISSUE DATE:

27-Jun-07 DESCRIPTION OF CHANGE:

Installing the Fresco III upgrade kit APPLICABLE FOR S/N:

All Fresco II printers

SOFTWARE

AFFECTED:

Yes No

IMPLEMENTATION:

On Request Immediate

Next Visit On Failure

PREPARED BY:

Zecharia Bar-Khai

TYPE OF CHANGE:

Mandatory

Conditional

MATERIAL DISPOSITION:

N/A

Use As Spare

Discard All

Discard Selectively (refer to Material Disposition)

Send Back For Rework

PROJECT MANAGER:

Arie Leibowitz

ENGINEERING MANAGER:

Tamara Preiskal

ICS MANAGER:

Avner Hadad

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Read this document carefully before implementing the FCO!

International Customer Support

1. General

This FCO provides the procedures for installing the Fresco III upgrade kit. This upgrade includes replacing all of the print heads, and installing a new version of PrinTop Ver. 1.63 Rev. 331 or higher.

2. Estimated Installation Time The implementation of the procedures in this FCO requires approximately 3 days.

3. Implementation Prerequisites The following conditions are necessary for performing this upgrade:

• Install this FCO upgrade only on Fresco printers with the Fresco 8C upgrade kit, P/N 10-0751

Note If the printer has not been upgraded to Fresco II, first perform the Fresco II upgrade before performing this Fresco III upgrade.

• The printer’s computer must be of types Dell GSX Optiplex, HP 7100 or 7600, or higher.

• Verify that the FPP card EPROM (EPC) chip in the printer’s computer was replaced with the new chip, number U16 V4.0 as well. Refer to FCO FC10-0002 EPC for FPP for information on changing the EPC chip.

• Install Wasatch version 5.2, included in this kit. For detailed instructions on installing Wasatch, refer to the Wasatch CD documentation.

4. Installation Procedure The installation of the Fresco III upgrade kit is comprised of the following general steps:

1. Printing a Reference File Before Performing the Upgrade 2. Backing Up of the Customer’s Substrate Profiles 3. Uninstalling the Current PrinTop Version 4. Installing the New HASP USB Driver and PrinTop Version 5. Flushing the Current Print Heads and Powering Down the Printer 6. Removing the Current Print Heads 7. Overnight Cleaning of the Replaced Print Heads and Packing 8. Adjusting the Secondary Ink Tanks Height

Proprietary and Confidential FCO: 68-6057 Page 2 of 34


9. Calibrating the Print Head Base Plate 10. Installing the New Print Heads 11. Installing the Ink Y-Connectors on the Ink Tubes to the Print Heads 12. Removing and Reworking the Print Head Protective Cover 13. Flushing the New Print Heads 14. Adjusting the Print Head Carriage Parallelism 15. Moving the Print Head Carriage X-Limits 16. Starting Up the Printer 17. Calibrating the 35V Power Supply for the New Print Head Voltage 18. Printer Alignment and Mode Calibration 19. Printing a Reference File After Performing the Upgrade

These steps are described in the following sections.

Note Clean, pack, and return all replaced print heads to NUR.

4.1 Printing a Reference File Before Performing the Upgrade

Verify with the customer which are the most common substrates and which ink modes (4, 8 or both) they use on their Fresco. Print two simple reference files: preferably the customer’s reference file and a NUR reference file, if available. Print these files for each of the print modes available, on each of the substrates commonly used. You use these reference files for comparison with the files printed after performing the upgrade to verify the improvements in the Fresco III upgrade. Examine the files printed to verify that the printer is properly calibrated before performing the Fresco III upgrade.

Note Only print using the ink mode used by the customer.

1. Load the substrate.

2. In the PrinTop, click to open the Print Mode Editor dialog box, and select the Test Patterns tab.

3. Select Test Patterns, select All Nozzles Test from the list on the tab, and print the All Nozzles Test.

4. Open the reference file in PrinTop, and print two copies of each reference file for each print mode the customer uses.



5. Repeat this procedure for all of the substrates commonly used by the customer.

6. Label each copy as printed before the Fresco III upgrade, and label the print mode substrate type on the copy.

4.2 Backing Up of the Customer’s Substrate Profiles

Check if the customer has created new profiles for the specific substrates they work with, you need to copy the parameters of these profiles for use in the new version of PrinTop Ver. 1.63 Rev. 331 you install in this upgrade.

1. On the Substrate tab in PrinTop, click Profile Parameters Editor. The Substrate Profile Editor dialog box opens, as shown in Figure 1.

Figure 1 – Substrate Profile Editor Dialog Box

2. Record the parameters for each profile the customer has created, to enable you to create these profiles in the new PrinTop version. You can record these parameters manually, or on the Fresco’s workstation keyboard, press Print Screen to make a screen capture of the customer’s substrate profiles.

3. From the Windows Start menu, select Programs > Accessories > Paint. Paint opens.

4. Paste the screen capture into Paint, and save the screen capture in a file to view after installing the new PrinTop.

5. Repeat these steps for each of the customer’s substrate profiles.



4.3 Uninstalling the Current PrinTop Version

The following procedure describes how to uninstall the current version of PrinTop from the Fresco’s computer workstation.

1. From the computer workstation’s Start menu, select Settings > Control Panel. The Control Panel window opens.

2. Select Add or Remove Programs. The Add or Remove Programs window opens.

3. Select PrinTop from the program list, and click Remove. Windows removes the current version of PrinTop.

4. In Windows Explorer, navigate to C:\Program Files\NUR, and delete the PrinTop folder.

5. Right-click on Recycle Bin on the Windows desktop and select Empty Recycle Bin to delete all files in the recycle bin.

6. Remove the current HASP from the printer port on the back of the Fresco’s computer workstation.

4.4 Installing the New HASP USB Driver and PrinTop Version

This procedure describes how to install the new PrinTop version supporting the changes in the Fresco III upgrade.

1. Insert the USB HASP (P/N 20-4001) for the new PrinTop version in a USB port on the Fresco’s computer workstation.

2. Insert the PrinTop installation CD (P/N 51-0037 from S/W kit P/N 50-0069) into the CD driver on the Fresco’s computer workstation, and select Install Hasp Driver from the PrinTop CD installation window, as shown in Figure 2.

Figure 2 – PrinTop Installation Welcome Screen – Installing Hasp Driver



3. Click Next on each of the installation wizard screens to install the Hasp driver.

4. Click Install PrinTop to install the latest version of PrinTop, and click Next on each of the installation wizard screens. The installation process finishes.

5. Click on the PrinTop icon on the desktop, or from the Windows Start menu, select Programs > Nur Macroprinters > PrinTop to open PrinTop.

6. Create a folder on the printer workstation desktop for the registration file. Use this folder to store the current and future registration files.

7. In the email the customer received with the PrinTop registration file, right-click on the registration file and select Save As, and save the registration file to the new registration file folder on the printer’s computer workstation.

Note It is recommended to change the name of the registration file to the current date before saving the file to the printer’s workstation. This enables you to distinguish the current file from the new file when re-registering. Do not change the registration file extension (*.txt).

8. From the PrinTop Tools menu, select Register PrinTop. The PrinTop Registration dialog box opens.

Figure 3 – PrinTop Registration Screen

9. Click Register, and browse to the location of the registration file you received from NUR support, and click Open. PrinTop is registered. Verify that PrinTop functions correctly with no error messages after registering.

Note Before this expiration date of this registration file the customer needs to repeat this procedure to reinstall a new registration file.

10. From the PrinTop Tools menu, select Download Controller. The new controller downloads. PrinTop is installed.



4.5 Flushing the Current Print Heads and Powering Down the Printer

The following procedure describes how to flush the current print heads before removing, and power down the printer before installing the upgrade kit.

1. On the PrinTop application on the technician’s workstation, select the Motion tab and click Sleep. The printer enters sleep mode.

2. From the File menu on the PrinTop application, select Exit. The application closes.

3. From the Windows Start menu, select Shut Down and click OK. Windows closes.

4. Turn off all of the circuit breakers in the back of the service side of the printer, except for the 24V DC PC circuit breaker for the solvent pumps shown in Figure 4.

Figure 4 – Ink Service Cabinet Circuit Breakers

Note Before flushing the print heads at any time, always turn off the 35V DC PC circuit breaker in the back of the ink cabinet to prevent damage to the print heads.

5. Move the print head carriage to the service position. 6. Turn all of the valves on the ink manifold, shown in Figure 5, to the Close

position, except for the top four (black). Turn the top four valves to Solvent, and verify that there is solvent in the solvent tank. Each set of four valves on the ink manifold control the flow to a different row of print heads.



Ink Valve Position Diagram

Ink Manifolds with Valves

Flushing Circuit Breaker

Solvent/ Air Valve

Figure 5 – Ink Manifold, Air/Solvent Valve, and Flushing Circuit Breaker

7. Move the Solvent/Air valve to Solvent and lift the flushing circuit breaker, shown in Figure 5, to flush the print heads with solvent. Flush with solvent until the solvent leaving the print heads is clear of ink.

8. Turn off the flushing circuit breaker and close the top four valves on the ink manifold, and turn the next four valves to the Solvent position. Repeat steps 6 through 8 until all of the print heads are cleaned.

9. After flushing all of the print heads, verify that all of the valves on the ink manifold are in the Close position. Return the Air/Solvent valve to Air.

10. Turn off all of the circuit breakers in the motion cabinet, on the back of the console side of the printer. Turn off the Emergency circuit breaker, on the left of the circuit breaker strip, last.

11. Turn the printer’s main power switch to Off.



4.6 Removing the Current Print Heads

The following procedure describes how to remove the current print heads from the print head carriage.

1. Remove the print head protective cover by releasing the three 5mm Allen screws, shown in Figure 6.

81

Figure 6 – Removing the Print Head Cover Plate

2. Disconnect the print head cables for the top row of print heads from the motherboard by raising and lowering the upper and lower connector levers respectively. Label the cable connections on the motherboard with the print head number and row for each cable, where print head #1 is the lowest in each row (closest to motherboard), and print head #8 is the highest.

3. Disconnect the ink tubes for the top row of print heads from the ink manifold. Label the ink tube connections on the manifold with the print head number for each tube, where print head #1 is the lowest in each row (closest to motherboard), and print head #8 is the highest.

4. Remove the two 2.5mm Allen screws securing the print heads on the top row to the print head base plate, as shown in Figure 7, and remove each of the print heads from the print head base plate.



Figure 7 – Loosening the Print Head Securing Screws

5. Disconnect the ink tubes from each of the print heads using a 7mm wrench. 6. After disconnecting the ink tube from each of the print heads, measure and

cut the same length of new tube (P/N 000-14-01-002) from the new tubing supplied in the kit.

7. Remove the quick connector from the removed ink tubes and clean the ink connectors in a solvent bath and then with air.

8. Attach the quick connector to the new ink tubes. 9. Repeat steps 2 through 9 for each of the remaining rows of print heads.

4.7 Overnight Cleaning of the Replaced Print Heads and Packing

The following procedure describes how to clean and pack the replaced print heads for returning them to Nur. Soak the print heads in solvent from when you remove the print heads overnight until the next day, and then clean the print heads.

1. Place all of the print heads in a container for soaking with solvent, with the print head facing down. Place a cloth at the bottom of the container and rest the print heads on the cloth.

2. Pour enough solvent into the container with the print heads to so the solvent level is above the ink outlets on the print heads, but below the electronic card on each of the print heads. Allow the print heads to soak in solvent overnight.

3. The following day remove the print heads from the solvent bath and clean each print head to remove ink traces.

!

Caution! Do not scrub the area of the ink orifices, shown in Figure 8, with a stiff brush. This may damage the print heads. Use a soft cloth with solvent, and rub lightly.



Securing Screw Hole

Orifice Area Silicon Cap

Securing Screw Hole Aligning Holes

Figure 8 – Print Head and Orifice Area

4. Remove the new print heads from the packing and place each old print head in the individual bags of the new print heads. Remove the silicon caps from each of the new print heads ink inlet and place the silicon caps on the old print heads.

5. Place each print head into the box from the new print heads and return the old print heads to Nur.

Figure 9 – Print Heads with Packing

Note The returned print heads may be used in other Fresco printers, and must be cleaned and packed properly before returning.



4.8 Adjusting the Secondary Ink Tanks Height

The following procedure describes how to adjust the height of the secondary ink tanks for the new print heads.

1. Loosen slightly the four M6 screws supporting the secondary ink tank plate, as shown in Figure 10.

Figure 10 – Loosening the Secondary Ink Tank Base Plate

2. Lower the secondary ink tank base plate to 86mm from the top of the support plate, as shown in Figure 11.



Ink Tank Support Plate

Figure 11 – Measuring the Secondary Ink Tank Height

3. Tighten the secondary ink tank plate’s four M6 screws.

Note After printing you may see missing nozzles while printing, similar to starvation. This problem is sometimes a result of improper secondary ink tank height. If this problem occurs you may need to lower the secondary ink tanks an additional 2-3mm.

4.9 Calibrating the Print Head Base Plate

Before installing the new print heads, calibrate the print head base plate to verify that all of the print heads are the same distance from the vacuum plate, and are also print parallel to the vacuum plate.

1. Attach 2 micrometers to the printer chassis, and place the micrometer needles on the print head base plate, one above the print heads, and one below the print heads, as shown in Figure 12.



Print Head Base Plate Adjusting Screws (8)

Print Head Protector Strip

Print Head Base Plate

Figure 12 – Calibrating the Print Head Base Plate

2. Reset (0) the micrometers, and slide the print head carriage slowly towards the console side to measure the distance of the print head base plate on the left and right edges of the print head carriage. If the measurement is not the same for the two sides of the base plate, proceed with the following steps to calibrate the base plate.

3. If the measurements are very different, remove the print head protector strip on the side of the print head base plate, as shown in Figure 12, and loosen slightly the 8 M4 retaining screws to the base plate, located in the center of the adjusting screws, shown in Figure 12 and below.

Adjusting Screw

Retaining M4 Screw

4. Adjust the 4 corner adjusting screws so that the print head protector strip fits snugly between the print head carriage and the print head base plate, as shown in Figure 12, on both sides of the print head base plate. Loosen the middle adjusting screws so they do not touch the print head carriage frame.

5. Reset (0) the micrometer, and slide the print head carriage back and forth to remeasure the base plate. Adjust each of the 2 corner adjusting screws closer to the side of the printer until the base plate is straight.

6. Place a micrometer on the top edge of the base plate, as shown in Figure 13.



Figure 13 –Calibrating the Top of the Print Head Base Plate

7. Reset the micrometer and slide the print head carriage slowly to measure the height of the base plate. Tap the edge of the base plate on the bottom or top to nudge the base plate in the needed direction, and remeasure the base plate height.

8. Tighten the M4 retaining screws for the 4 corners of the base plate, and then turn the middle adjusting screws so that they are snug against the print head carriage frame.

9. Tighten the middle M4 retaining screws. 10. Verify with the 2 micrometers that the base plate is still straight.

4.10 Installing the New Print Heads

The following procedure describes how to install the new print heads from the upgrade kit.

1. Attach the new ink tube with the old quick connector to each of the new print heads using a 7mm wrench, and place the new print heads on a table according to the order you insert them on the print head base plate.

2. Remove ink residue from the print head locating pins on the print head base plate.

3. Connect the new flat data cables from the kit (P/N 200-53-00-103) to the new print heads, and verify that the cable is locked on the print heads.

4. Carefully place the new print heads (P/N 21-0246) onto the two print head locating pins. Place the first row of print heads, starting from the lowest, or left-most print head when facing the base plate, and continuing to the right.



5. Secure the two print head Allen screws for each of the print heads to attach the print heads to the print head base plate, as shown in Figure 7.

6. Connect the new data cable from the print head to the correct connector on the mother board, as they were connected with the previous print heads.

7. Connect the ink tube from each print head to the ink manifold as they were connected to the previous print heads.

8. Perform this procedure for each of the print heads in the row, installing the new print heads in the reverse order that you removed the old print heads.

9. Turn on the Emergency circuit breaker only, the left-most circuit breaker in the circuit breaker strip located in the rear of the motion cabinet, as shown on the left in Figure 14, and then turn on the 35V circuit breaker only on the circuit breaker strip located in the back of the ink cabinet, as shown on the right in Figure 14. Verify that the green LED on each of the print heads in the installed row light, as shown in Figure 15, and verify visually that there are no other problems with the print heads electronics.

Figure 14 – Emergency Circuit Breaker (Left) and Print Head 35V Circuit Breaker (Right)



Figure 15 – Green LEDs on Print Heads

10. Turn off the 35V circuit breaker to the print heads. 11. Repeat this procedure for the next row of print heads.



4.11 Installing the Ink Y-Connectors on the Ink Tubes to the Print Heads

The following procedure describes how to disconnect the ink connections to the print heads from the manifold and insert the Y-connector on the ink tubes. Inserting the Y connectors increases the ink flow to the print heads to prevent starvation.

1. Move the print head carriage to the far left end of the printer, as shown in Figure 16.

Ink Manifold

Ink Connections to Manifold

Figure 16 – Ink Manifold and Connections on Print Head Carriage

2. Cut the ink tubes approximately 2.5cm (1 in.) from all of the connections on the closest row of ink connectors on the manifold, as shown in Figure 17.



Close Row of Ink Connections on Manifold

Figure 17 – Ink Tube Connectors on Manifold

3. Connect the base of the Y-connector to the cut ink tubes leaving the ink manifold, and connect the cut ink tubes to the print heads to one end at the top of the Y-connector, as shown in Figure 18.

Ink Tube from Manifold

Ink Tube to Print Heads

Figure 18 - Print Heads with Y-Connections

4. Disconnect the ink tubes from the far row of ink connections on the manifold, and remove the ink tube to the print heads from the connectors.



5. Connect the ink tube to the print heads from the far row of the manifold to the other top of the Y-connector, as shown in Figure 18.

4.12 Removing and Reworking the Print Head Protective Cover

Before calibrating the print head base plate and installing the new print heads, you need to cut out a piece from the base plate to provide more space for the new print heads.

1. Remove the 22 securing screws from the print head protective cover plate, shown in Figure 19, and remove the cover plate from the frame.

Figure 19 – Removing the Print Head Cover Plate from the Frame

Frame

Plate

2. Cut the frame to remove the metal section shown in Figure 20 using a metal handsaw.



Figure 20 – Cutting the Print Head Cover Frame

3. Return the print head protective cover plate on the cover frame, as shown in Figure 19, by inserting all of the screws a few turns each.

4. After all of the cover plate screws are in place, tighten each of the screws to secure the cover plate on the frame.

5. Secure the print head cover on the print head base plate with the three 5mm Allen screws as shown in Figure 6.

4.13 Flushing the New Print Heads

After installing the new print heads, clean them with air and then solvent to prepare them for printing.

1. Turn off all of the circuit breakers in the ink cabinet, on the back of the service side of the printer, except for the 24V DC PC circuit breaker for the solvent pumps shown in Figure 21.



Figure 21 – Ink Service Cabinet Circuit Breakers

Note Before flushing the print heads at any time, always turn off the 35V DC PC circuit breaker in the back of the ink cabinet to prevent damage to the print heads.

2. Turn on the printer's main power switch. 3. Move the print head carriage to the service position. 4. Turn all of the valves on the ink manifold, shown in Figure 22, to the Close

position, except for the top four (black). Turn the top four valves to Solvent, and verify that there is solvent in the solvent tank. Each set of four valves on the ink manifold control the flow to a different row of print heads.



Ink Valve Position Diagram

Ink Manifolds with Valves

Flushing Circuit Breaker

Solvent/ Air Valve

Figure 22 – Ink Manifold, Air/Solvent Valve, and Flushing Circuit Breaker

5. Verify that the High Purge air pressure gauge shows 1.5 bar, and that the Low Purge air pressure gauge shows between 70-80 mbar. Adjust the air pressure regulators if necessary, shown in Figure 23.



High Purge Pressure Gauge

Low Purge Pressure Regulator

Low Purge Pressure Gauge

Figure 23 – High and Low Air Pressure Gauges and Regulators

6. Move the Solvent/Air valve to Air, and allow the air to remove the solvent stored in the print heads during shipping.

7. Return the Air/Solvent valve to Solvent and lift the flushing circuit breaker, shown in Figure 22, to flush the print heads with solvent for three seconds.

8. Turn off the flushing circuit breaker and close the top four valves on the ink manifold, and turn the next four valves to the Solvent position. Repeat steps 4 through 8 until all of the print heads are cleaned.

9. After flushing all of the print heads, verify that all of the valves on the ink manifold are in the Close position. The Air/Solvent valve should be on Solvent.

10. Turn off all of the circuit breakers in the motion cabinet, on the back of the console side of the printer. Turn off the Emergency circuit breaker, on the left of the circuit breaker strip, last.



4.14 Adjusting the Print Head Carriage Parallelism

The following procedure describes how to check and adjust the print head carriage to be parallel with the print table.

Note This document does not describe how to perform extensive and detailed calibrations of the Fresco.

1. Manually move the print head carriage from the service station so that the print head carriage is opposite the print table.

2. Place 1.5mm feeler gauges between the print head carriage and the print table, on the left and right sides of the print head carriage, as shown in Figure 24, and verify that the print head carriage is 1.5mm from the print/vacuum table.

Figure 24 – Verifying Print Head Carriage Distance

3. Loosen the securing knobs on the print head carriage, and loosen the Allen screw on the outer limit knob, shown in Figure 25. Turn the outer limit knob counter clockwise to move it out.



Print Head Carriage Securing Knobs

Print Head Carriage Adjusting Knob

Print Head Carriage Limiting Knobs

Figure 25 – Adjusting Print Head Carriage Distance from Print Table

4. Turn the print head carriage adjusting knob until the print head carriage is 1.5mm from the print table.

5. Tighten the print head carriage securing knobs, and turn the outer limiting knob so it presses against the limiter. Tighten the Allen screw on the limiting knob.

4.15 Moving the Print Head Carriage X-Limits

The following procedure describes how to increase the print head carriage x-travel by moving the right (console) side electrical and mechanical x-limits to the right 50mm.

1. Mark the current location of the electrical stopper switch assembly, as shown by the left line in Figure 26.



Original Location of X-Limit Switches

New Location of X-Limit Switches

X-Limit Switches Securing Screws (2)

X-Mechanical Limit Securing Screws (4)

Figure 26 – Adjusting Print Head Carriage Right X-Limit

2. Loosen the four Allen securing screws to the print head carriage right side (console) mechanical stopper, and the two Allen securing screws to the electrical stopper switches, shown in Figure 26.

3. Slide the mechanical limit to the right on the track, and move the limit switch assembly to the right, 50mm from the original location mark.

4. Tighten the limit switch assembly's two securing screws, and manually move the print head carriage to the console side.

5. Secure the mechanical limit's four securing screws so that the mechanical limit stops the print head carriage after the print head carriage presses the limit switches.

6. Loosen the six screws securing the ink drain trough closer to the computer console to the x-beam, as shown in Figure 27.



Figure 27 – Ink Drain Trough Securing Screws

7. Separate the trough overlap, sealed between the two parts with silicon, and slide the ink drain trough towards the moved limit switches 5cm, to expand the length of the drain trough.

Figure 28 – Ink Drain Trough Overlap

8. Apply a thin layer of silicon to the top of the lower drain trough at the new joining point, and rest the upper drain trough on the lower drain trough.

9. Secure the six ink drain trough screws shown in Figure 27 to hold the ink drain trough in the new position.



4.16 Starting Up the Printer

The following procedure describes how to restore the power to the printer, and restart the computer and PrinTop application.

1. Turn on all circuit breakers in the driver cabinet on the back of the console side, and then close all doors on the printer cabinet. The power is restored to the printer.

2. Press the power button on the printer’s computer. The computer starts. 3. Log on to Windows. 4. From the Windows Start menu, select Programs > Nur Macroprinters >

PrinTop.exe. The PrinTop application opens. 5. Click Wake Up on the Motion tab of the PrinTop application. The printer’s

systems begin functioning. 6. Perform an all nozzles test to verify that all of the print heads are

functioning properly.

Note If a print head isn’t printing properly, flush that color heads with air, as described in Flushing the New Print Heads on page 21, and perform Ink Wakeup. If this doesn’t work, perform High Purge to that color print heads in PrinTop.

4.17 Calibrating the 35V Power Supply for the New Print Head Voltage

After installing the new print heads, you need to adjust the print head power supply to provide a voltage of 33.5V instead of 32.5V with the previous print heads.

1. Remove the two securing screws to the print head power supply cover, as shown in Open the Remove the print head power supply cover, located in the back of the ink cabinet, shown in Figure 29.



Figure 29 – Opening the Print Head Power Supply Cover

2. Connect the DVM to the print head power supply outlets, as shown in Figure 30, and turn the output voltage adjusting screw, shown in Figure 30, to lower the voltage to 33.5V.

Voltage Adjusting Screw

Figure 30 – Calibrating the Print Head Voltage

3. Return the print head power supply cover and secure the cover with the two screws, as shown in Figure 29.



4.18 Printer Alignment and Mode Calibration

The following are the general steps you need to perform after installing the new print heads.

1. From the PrinTop Calibration menu, select Printer Alignment. The Printer Alignment wizard opens. Perform printer alignment carefully and thoroughly.

2. In PrinTop, create new substrate profiles from the parameters used in the previous version of PrinTop.

3. From the PrinTop Calibration menu, select Mode Alignment. The Mode Alignment wizard opens. Perform mode alignment carefully and thoroughly for each substrate and print mode. If necessary, adjust the vacuum plate temperature, and the top and bottom roller temperatures if installed on the printer.

4.19 Printing a Reference File After Performing the Upgrade

After installing the upgrade kit, print the same reference files you printed before performing the upgrade. Print these files for each of the print modes commonly used, on each of the substrates commonly used. These reference files are used for comparison with the files printed before performing the upgrade as verification of the improvements in the Fresco III upgrade.

1. Load the substrate.

2. In the PrinTop, click to open the Print Mode Editor dialog box, and select the Test Patterns tab.

3. Select Test Patterns, and select All Nozzles Test from the list on the tab. 4. Print the All Nozzles Test. 5. Open the reference file in PrinTop, and print two copies of each reference

file for each print mode the customer uses. 6. Repeat this procedure for all of the substrates commonly used by the

customer. 7. Label each copy as printed before the Fresco III upgrade, and label the

print mode substrate type on the copy. 8. Compare these printed files with those printed before the upgrade.

5. Logistics Refer to Agile for a complete list of the items included in this FCO kit.



6. Printing with the New Print Heads The following are information and tips on printing with the new print heads used in the Fresco III upgrade. Print this section and give it to the customer.

6.1 Print Head Maintenance

! Important: To ensure that the new Fresco III print heads operate reliably over time and across the range of operating frequencies, it is important that you operate the print heads with a thin film of ink always present on the surface of the nozzle plate. When cleaning the print heads, do not wipe the nozzle plate surface dry of all ink residue.

6.2 Printing Modes

The following table shows the new print modes and speeds for Fresco III. NUR Fresco III Print resolution Up to 360 dpi addressable, 720 dpi apparent. Printing speed Up to 140 sq.m (1,506 sq.ft) /hr.

Roll-to-sheet (optional vertical cutting knife), roll-to-roll (embedded collector). Media handling

Up to 3.2m (10.5 ft) width. Media size

Rolls with 76 mm (3") cores (optional 152 mm (6") cores), up to 300 mm (12") outside diameter. Media loading

4- and 8-Color pigmented solvent-based inks (CMYK, LC, LM, LY, LK). Printing inks

Print modes 4- and 8-color modes with automatic switchover. Sq.m (sq.ft) /hr 8-color Sample mode 25 sq.m (269 sq.ft) /hr. 8-color Press Mode 36 sq.m (388 sq.ft) /hr. 8-color Press+ Mode 40 sq.m (430 sq.ft) /hr. 4-color Press Mode 37 sq.m (398 sq.ft) /hr. 4-color Press+ Mode 41 sq.m (441 sq.ft) /hr. 4-color Hi-Press Mode 74 sq.m (796 sq.ft) /hr. 4-color X-Press Mode 83 sq.m (894 sq.ft) /hr. 4-color X-Press II Mode 117 sq.m (1,260 sq.ft) /hr. 4-color X-Press III Mode 140 sq.m (1,506 sq.ft) /hr.



The following table shows a comparison between the printing specifications for Fresco II and Fresco III.

Old configuration New configuration Comparision Old Resolution

New Resolution

Mode Pitch Freq. Vel. Pitch Freq. Vel. Velocity increase

Quality / Density improve-ment

X Y X Y

8c Sample 90 4250 0.764 90 5500 0.988 29% 0% 282.2 370.4 282.22 370.4

8c Press 67.5 4250 1.147 70 5500 1.54 34% -4% 376.3 185.2 362.86 185.2

8c Press+ 90 4250 1.529 80 5500 1.76 15% 13% 282.2 185.2 317.5 185.2

4c Press 80 4250 1.36 70 5500 1.54 13% 14% 317.5 185.2 362.86 185.2

4c Press+ 105 4250 1.785 80 5500 1.76 -1% 31% 241.9 185.2 317.5 185.2

4c Hi-Press 80 4250 1.36 70 5500 1.54 13% 14% 317.5 185.2 362.86 185.2

4c X-Press 105 4250 1.785 80 5500 1.76 -1% 31% 241.9 185.2 317.5 185.2

4c X-PressII 57.5 4250 0.976 57.5 5500 1.265 30% 0% 441.74 185.2 441.74 185.2

4c X-PressIII 70 4250 1.19 70 5500 1.54 29% 0% 362.86 185.2 362.86 185.2

6.3 Printing with Paper Substrate

When printing on paper substrate using the XPress140 print mode, you must increase the drying temperature to 115°C in the Infrared field in the Substrate Profile Editor, General tab for proper ink drying.



6.4 Printing In Cooler Weather

Important:

When starting the printer in temperatures less than approximately 25°C (77°F), it is recommended to warm the print heads before printing. Move the print head carriage to the center of the vacuum plate while the printer is warming to warm the print heads. After the printer has reached operating temperature return the print head carriage to the service position and begin printing.

6.5 Eliminating Color Banding

After installing this upgrade kit, print test files for all of the print modes and examine the results. If you detect UV banding on any or the samples, open the Substrate Profile Editor, general tab, and change the drying temperature in the Vacuum Plate field to 55°C. If this doesn’t eliminate the banding, lower the height of the secondary ink tank base plate an additional 1-2mm, as described in section 4.8 Adjusting the Secondary Ink Tanks Height, on page 12.


Date post:	22-Aug-2020
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