HP LaserJet M1120 Service Manual - Page 67

Post-service tests After service has been completed, the following tests can be used to verify that the repair or replacement was successful. Test 1 (print-quality test) 1. Verify that you have completed the necessary reassembly steps. 2. Ensure that the input tray contains clean, unmarked paper. 3. Attach the power cord and interface cable, and then turn on the product. 4. Verify that the expected start-up 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. If necessary, restore any customer product settings. 9. Clean the outside of the product with a damp cloth. Test 2 (copy-quality test) 1. Verify that you have completed the necessary reassembly steps. 2. Ensure that the input tray contains clean, unmarked paper. 3. Attach the power cord and interface cable, and then turn on the product. 4. Verify that the expected start-up sounds occur. 5. Print a configuration page, and then verify that the expected printing sounds occur. 6. Place the configuration page on the scanner glass. 7. Print a copy job, and then verify the results. 8. Clean the outside of the product with a damp cloth. ENWW Removal and replacement strategy 51