HP LaserJet 4250 - Manual (Page 10)

Clearing jams from the optional duplexer .......................................................................140
Clearing jams from the output areas ..............................................................................141
Clearing jams from the fuser area ..................................................................................142
Clearing jams from the optional stacker or stapler/stacker ............................................144
Solving repeated jams ....................................................................................................146
Understanding printer messages ..........................................................................................148
Using the printer online Help system ..............................................................................148
Resolving persistent messages ......................................................................................148
Understanding accessory lights for the stacker and stapler/stacker ....................................169
Accessory lights ..............................................................................................................169
Replacing accessories or accessory components .........................................................171
Correcting print-quality problems ..........................................................................................172
Print-quality checklist ......................................................................................................172
Image defect examples ..................................................................................................172
Light print (partial page) ..................................................................................................174
Light print (entire page) ..................................................................................................174
Specks ............................................................................................................................174
Dropouts .........................................................................................................................175
Lines ...............................................................................................................................175
Gray background ............................................................................................................176
Toner smear ...................................................................................................................176
Loose toner .....................................................................................................................177
Repeating defects ...........................................................................................................177
Repeating image ............................................................................................................178
Misformed characters .....................................................................................................178
Page skew ......................................................................................................................178
Curl or wave ....................................................................................................................179
Wrinkles or creases ........................................................................................................179
Vertical white lines ..........................................................................................................180
Tire tracks .......................................................................................................................180
White spots on black ......................................................................................................180
Scattered lines ................................................................................................................181
Blurred print ....................................................................................................................181
Random image repetition ...............................................................................................182
Troubleshooting network printing problems ..........................................................................183
Troubleshooting common Windows problems .....................................................................184
Troubleshooting common Macintosh problems ....................................................................185
Troubleshooting common PostScript problems ....................................................................191
General problems ...........................................................................................................191
Specific errors .................................................................................................................191
Troubleshooting the optional hard disk .................................................................................193
Appendix A Supplies and accessories
Ordering parts, accessories, and supplies ............................................................................196
Ordering directly from HP ...............................................................................................196
Ordering through service or support providers ...............................................................196
Ordering directly through the embedded Web server (for printers that are
connected to a network) ..............................................................................................196
Ordering directly through the HP Toolbox software (for printers that are directly
connected to a computer) ...........................................................................................197
Part numbers .........................................................................................................................198
Paper-handling accessories ...........................................................................................198
Print cartridges ................................................................................................................199
Maintenance kits .............................................................................................................199
Memory ...........................................................................................................................199
viii ENWW