HP Officejet Pro L7550 - Understand the self-test diagnostic page

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Understand the self-test diagnostic page

Use the self-test diagnostic page to:

View current device information, ink cartridge status, and printhead health status

Help troubleshoot problems

Verify installation of optional accessories, such as the duplexer

The self-test diagnostic page also contains a log of recent events.

Chapter 9


Configure and manage

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If you need to call HP, it is often useful to print the self-test diagnostic page before

1. Printer Information: Shows device information (such as the product name, model

number, serial number, and firmware version number), the accessories that are
installed (such as the duplexer), and the number of pages printed from the trays
and accessories.

2. Ink Cartridge Status: Shows the estimated ink levels (represented in graphical

form as gauges) and the part numbers and expiration dates of the ink cartridges.


The ink levels shown are an estimate only. Actual ink volumes may


3. Printhead Status: Shows the status of the printhead health and the part numbers,

first-installation dates, and end-of-warranty dates of the printheads, as well as the
accumulated ink usage. The status options for the printhead are: good, fair, and
replace. If the status is 'fair,' then the print quality must be monitored, but the
printhead does not need to replaced. If the status is 'replace,' then the printhead
should be replaced, as the device will not function until it is.

4. Event Log: Shows a log of recent events that have occurred.

To print the Self-Test Diagnostic Page

Control panel: Press Setup, select Print Report, select Self-Test Report, and
then press OK.

Toolbox (Windows): Click the Services tab, and then click Print Self-test
Diagnostic Page

HP Printer Utility (Mac OS): Click Device Information from the Information and
panel, and then click Print Configuration Page.

Understand the self-test diagnostic page