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Remove the toner cartridge.
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Remove the Tray 2 cassette.
After performing service
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Plug in the power cable.
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Reinstall the toner cartridge.
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Reinstall the Tray 2 cassette.
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Load paper in the product.
Post-service test
Perform the following test to verify that the repair or replacement was successful.
Print-quality test
1. Verify that you have completed the necessary reassembly steps.
2. Make sure that the tray contains clean, unmarked paper.
3. Attach the power cord and interface cable or interface cables, and then turn on the product.
4. Verify that the expected startup sounds occur.
5. Print a configuration page, and then verify that the expected printing sounds occur.
6. Print a demo page, and then verify that the print quality is as expected.
7. Send a print job from the host computer, and then verify that the output meets expectations.
8. Clean the outside of the product with a damp cloth.
4 Chapter 1 Removal and replacement ENWW
For more information and parts on the HP LaserJet Pro 400, M425 call 800-551-1943 or order on line at www.printersupplies.com
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