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HP DeskJet 350 Series Printer - How to Print Internal Tests

Introduction
This document explains how to print the built-in (internal) tests of the HP DeskJet 350 series printer. These tests can be used to ensure the printer is working properly or to troubleshoot specific printer issues. The internal test will not verify whether the computer-to-printer connection is working properly, except when the sample page is generated from the Toolbox.
 note:
All internal test pages can be printed without being connected to a computer. This allows you to test that the printer is set up and operating correctly.
Printing the sample page (self-test)
Use the sample page to check general printer operation or to quickly check image quality from the black or color print cartridges. The sample page that prints will depend upon which cartridge (black or color) is installed. The following steps may be used to print the sample page directly at the printer:
  1. Turn off the printer.
  2. Press and hold the Paper Feed button.
  3. While holding down the Paper Feed button, turn on the printer.
  4. Once the power light is on, release the Paper Feed button.
The sample page can also be printed from the Toolbox (provided the Toolbox is installed) to verify that the printer is connected to the computer properly and that the printer and printer software are working properly. The following steps may be used to print the sample page using the Toolbox:
  1. Double-click the Toolbox icon on the Desktop or run it from the HP DeskJet 350 Printer program group.
  2. Select the Printer Services tab and click Print a Test Page.
  3. The printer will prompt to make sure the printer is turned on. Turn on the printer, if needed, and then choose Print.
Figure : Sample page for color pen
Figure : Sample page for black pen
Printing the diagnostic page
The diagnostic page contains information such as the printer's model name and number, battery level, I/O connection type, firmware version, and page count. The following steps may be used to print the diagnostic page.
  1. With the printer on, press and hold the Power button.
  2. Press and release the Paper Feed button 5 times (still holding the Power button).
  3. Release the Power button.
Figure : Diagnostic page
Printing the extended diagnostic page
In addition to the information contained on the diagnostic page, the extended diagnostic page prints the values stored in the printer's Nonvolatile Random Access Memory (NVRAM). To print the extended diagnostic page:
  1. With the printer on, Press and hold the Power button.
  2. Press and release the Paper Feed button 12 times (still holding the Power button).
  3. Release the Power button.
Figure : Extended diagnostic page
Running the pen recovery page
 note:
There is a print cartridge-cleaning mode in the firmware. Use this test to clear blocked nozzles.
If printouts have incomplete text or graphics that are not corrected by cleaning the print cartridges, use the pen recovery diagnostic test. The pen recovery diagnostic test is a cleaning procedure that attempts to clear blocked print cartridge nozzles. The recovery test (clean test) can be ran either from the Toolbox, by choosing Clean Print Cartridges from the Printer Services tab, or by pressing the button sequence below.
  1. With the printer on, press and hold the Power button.
  2. Press and release the Paper Feed button 7 times (still holding the Power button).
  3. Release the Power button.
To verify that the cartridge has recovered, look for gaps in the nozzle test patterns (the lines located at the top and bottom of the pen recovery page). If no gaps are present on the test, the print cartridge has recovered. If gaps appear, run the test once more. If gaps still appear, replace the print cartridge.
 note:
Do not use the pen recovery test unnecessarily or the life of the print cartridge will be shortened.
Figure : Pen recovery page for color pen
Figure : Pen recovery page for black pen

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