1. Go to Service Menu > 1 Service Utilities > 1.3 Substrate Path Menu > 1.3.4 OMAS Sensor Check.
2. The Front Panel asks you to place a standard substrate A4 sheet over the OMAS window.
3. The printer tries to calibrate the level of illumination needed to navigate the substrate. At this point, if it
is not able to find the correct illumination the test will display the FAIL message and will finish. In that
case, it could be that the OMAS module is defective or that the power from the OMAS controller PCA is
not reaching the OMAS module.
4. If the calibration of the illumination succeeds, the printer takes a photo and analyzes it.
5. The Front Panel displays the results of the analysis.
6. If the contrast levels of the image are not as expected, a system error will be displayed. In this case, if
the substrate you have used is a standard blank paper for photocopiers, it means that the OMAS is not
working as expected (maybe it is out of focus, dirty, not correctly installed, etc.).
1.4 Ink System Menu
1.4.1 Purge tubes
Description
The purpose of this is to prime the Ink Tubes when they are not new and they need to be re-primed or
automatic priming was not completed correctly.
Procedure
1. Go to Service Menu > 1 Service Utilities > 1.4 Ink System Menu > 1.4.1 Purge Tubes.
2. The front panel warns you if the Ink Cartridges are not suitable for priming. Replace the installed Ink
Cartridges with Ink Cartridges that are new or at least 88% full. Press any key to finish the utility.
3. The front panel asks for confirmation; press OK to proceed. Then the System restarts.
4. Once the printer has restarted, the front panel asks you to open the Window and remove all the
Printheads installed in the Carriage.
5. Once all the Printheads have been removed, the front panel asks you to install the Setup Printheads
into the Carriage.
6. Once all the Setup Printheads are installed, the front panel prompts you to close the Carriage Cover and
the Window.
7. The printer will begin to purge the tubes system.
8. Once the tubes system has been purged, the front panel asks you to open the Window.
9. The front panel asks you to check that the Setup Printheads are full of ink.
10. The front panel asks you to change the waste bottle. Disregard this instruction, do not change any
parts. Continue with the purge procedure, pressing OK to advance through the procedure, but without
changing anything.
11. At the end of the procedure the printer will perform the Printhead Alignment procedure.
1.5 Scan Axis Menu
1.5.1 Force drop detection
Description
The purpose of this is to reset the nozzle health database so that all nozzles are assumed to be correct.
168 Chapter 4 Service Tests, Utilities, and Calibrations ENWW
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