Service manual

Random toner specks appear on the printed page.
Cause Solution
The media in use does not meet HP specifications (for
example, it is too moist or too rough).
Make sure that the media meets specifications detailed in
the HP LaserJet Printer Family Print Media Guide.
The print path is dirty. Clean the print path (see Cleaning the print path on page 31).
Characters are only partially printed (also referred to as dropouts).
Cause Solution
A single sheet of paper is defective. Try reprinting the job.
The print density needs to be adjusted. HP LJ 1010: Adjust the print density from the HP Toolbox (on
the Settings tab) or open the Printer Properties dialog box,
and then select the Configure tab. Use the slide bar in the
Print Density area of the dialog box to change the print density
setting. Click OK to close the Printer Properties dialog box.
HP LJ 1020: Open the Printer Properties dialog box, and then
select the Configure tab. Use the slide bar in the Print
Density area of the dialog box to change the print density
setting. Click OK to close the Printer Properties dialog box.
The moisture content of the paper is inconsistent, or the paper
has moist or wet spots on the surface.
Make sure that the media meets the specifications detailed in
the HP LaserJet Printer Family Print Media Guide.
The paper was damaged by inconsistent manufacturing
processes.
Make sure that the media meets the specifications detailed in
the HP LaserJet Printer Family Print Media Guide.
Economode is enabled. Open the Printer Properties dialog box, and then select
Printing Preferences. Select the Finishing tab, and then
clear the EconoMode (Save Toner) check box. Click OK to
close the Printing Preferences dialog box, and then click
OK again to close the Printer properties dialog box.
The wrong type of media is selected in the Printer
Preferences dialog box.
Open the Printer Properties dialog box, and then click
Printing Preferences. Select the correct media type from the
Type Is drop down menu. Click OK to close the Printing
Table 6-6 Solving print-quality problems (continued)
ENWW Print-quality troubleshooting 113