Hp LaserJet 9000 Printer series User Manual download pdf (Page 126)

Chapter 5 Problem solving 126

Correcting output quality problems

z Clean the inside of the printer (see the introduce guide on the product CD, or go to

www.hp.com/cposupport/

) and run a manual cleaning page to clean the fuser (see “Using the printer

cleaning page” on page 80).

z Replace the print cartridge.

z Maintenance might be due. Check this by printing a copy of the supplies status page (see “Supplies

status page” on page 156). If maintenance is due, order and install the printer maintenance kit. (See the

introduce guide on the product CD, or go to www.hp.com/cposupport/

Gray background

z Do not use paper that has already been run through the printer.

z Print a few more pages to see if the problem corrects itself.

z Turn over the stack of paper in the tray. Also, try rotating the paper 180°.

z At the printer control panel, use the Print quality menu to decrease the toner density setting (see “Print

quality submenu” on page 184).

z Make sure that the environmental specifications for the printer are being met (see “Environmental product

stewardship program” on page 218).

z Replace the print cartridge.

Toner smear

Also see “Loose toner” on page 127.