HP LaserJet 9000 Printer series - Manual (Page 141)

7 Problem solving 141
Correcting output quality problems
z Maintenance might be due. Check this by printing a copy of the supplies status page (see “Supplies status page” on
page 171 ). 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/support/lj9000 .)
Gray background
z Do not use paper that has already been run through the product.
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 degrees .
z At the product control panel, use the Print quality menu to decrease the toner density setting (see “Print quality
submenu” on page 202 ).
z Make sure that the environmental specifications for the product are being met (see “Environmental product stewardship
program” on page 238 ).
z Replace the print car tridge.
Toner smear
Also see “Loose toner” on page 141 .
z Print a few more pages to see if the problem corrects itself.
z Try using a different type of paper.
z Make sure that the environmental specifications for the product are being met (see “Environmental product stewardship
program” on page 238 ).
z Clean the inside of the product (see the introduce guide on the product CD, or go to www.hp.com/suppor t/lj9000 ) and run
a manual cleaning page to clean the fuser (see “Using the product cleaning page” on page 93 ).
z Maintenance might be due. Check this by printing a copy of the supplies status page (see “Supplies status page” on
page 171 ). 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/support/lj9000 .)
z Replace the print car tridge.
Loose toner
Loose toner, in this context, is defined as toner that can be rubbed off the page.