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Ink Supplies Troubleshooting
3-19
HP DesignJets 500, 510 and 800 Series Printers Service Manual
used is below 100%) and the maximum recovery action was also
performed (P/H cleaning code is 3). Therefore the conclusion is that
the Printer is causing the Printheads to fail. In this situation, to
resolve the problem, try the following:
1 Check the amount of ink used by the Printhead (Page 3-10,
Obtaining Printhead Information). If the amount of ink used by the
Printhead is less than 1 Ink Cartridge (69 cc), then replace the Ink
Cartridge for that color.
2 Check if the Ink Supply Station is faulty by performing the Ink
Supply Station test ⇒ Page 4-6. If the test fails, replace the Ink
Supply Station ⇒ Page 8-48.
3 Use the printer Information utility to check the usage of the Service
Station ⇒ Page 4-27. If the usage of the Service Station is close to
100% then replace the Service Station ⇒ Page 8-52.
4 Check if the Ink Supply Tubes are faulty by installing new Start-up
Printheads into the Carriage and see if ink flows to them (you will
need to perform the Prime Tubes Utility ⇒ Page 4-24). If the ink
DOES NOT flow to the Start-up Printheads, replace the Ink Supply
Tubes ⇒ Page 8-60.
Is the User Replacing the Printheads too Early?
In the same way that you can determine if the Printer is causing
failures in the Printheads, you can determine if the customer is
replacing the Printheads before the minimum life expectancy has
been reached without performing the maximum recovery action
(
Troubleshooting
procedure
).
If the user replaces the Printhead without performing a recovery
action, the Printhead will be marked 0. If the user replaces the
Printhead after only performing Levels 1 or Level 2 recovery action,
the Printhead will be marked 1 or 2.
If a customer complains about having to replace the Printheads
frequently before the minimum life expectancy has been reached
due to poor print quality, using the information obtained with the
Printhead History Utility you can determine if the Customer is
replacing the Printheads too early as follows:
1 Enter the Printhead History Utility and Select the color of the
Printhead that is experiencing the replacement problem. In the