HP 3150 manual Press once to display Service and press ENTER/MENU

10

12

6If the vertical black or white line appears on the copy of the demonstration page, continue with steps 7 through 12 below.

7On the control panel, press ENTER/

MENU.

8Press < once to display Service and press ENTER/MENU.

9Use the < and > keys to select Scan Correction and press ENTER/MENU.

10Insert a blank, bright white piece of letter-sized paper into the document feeder tray. The HP LaserJet 3100/ 3150 product pulls the piece of paper through and then prints a calibration graph.

11Examine the calibration graph. A dip in the calibration graph can indicate an image defect.

Note

Dips at the ends of the calibration graph are normal.

12Line up the calibration graph with a newly copied page. If the dip in the calibration graph corresponds to the black or white line, the contaminant is likely internal and the contact image sensor assembly should be replaced.

EN Troubleshooting tools 187