11
Problem solving
Problem-solving checklist
..................................................................................................................
168
Factors that affect performance
........................................................................................
168
Problem-solving flowchart
.................................................................................................................
169
Solve general device problems
.........................................................................................................
174
Control-panel message types
............................................................................................................
177
Control-panel messages
....................................................................................................................
178
Common causes of jams
...................................................................................................................
188
Clear jams
..........................................................................................................................................
189
Clear jams from the top-cover and print-cartridge areas
..................................................
190
Clear jams from the optional envelope-feeder area
.........................................................
192
Clear jams from the tray1 area
.........................................................................................
194
Clear jams from the tray2, 3, 4, or 5 areas
.......................................................................
195
Clear jams from the optional duplexer
..............................................................................
197
Clear jams from the output areas
.....................................................................................
198
Clear jams from the fuser
.................................................................................................
199
Clear jams from the document feeder
..............................................................................
202
Solve repeated jams
.........................................................................................................
203
Paper-path test
.................................................................................................................
204
Clear staple jams
...............................................................................................................................
205
Solve print-quality problems
..............................................................................................................
207
Print-quality problems associated with media
..................................................................
207
Print-quality problems associated with the environment
..................................................
207
Print-quality problems associated with jams
.....................................................................
207
Image defect examples
.....................................................................................................
207
Light print (partial page)
....................................................................................................
209
Light print (entire page)
.....................................................................................................
209
Specks
..............................................................................................................................
209
Dropouts
...........................................................................................................................
210
Lines
..................................................................................................................................
210
Gray background
..............................................................................................................
211
Toner smear
......................................................................................................................
211
Loose toner
.......................................................................................................................
212
Repeating defects
.............................................................................................................
212
Repeating image
...............................................................................................................
212
Misformed characters
.......................................................................................................
213
Page skew
........................................................................................................................
213
Curl or wave
......................................................................................................................
214
Wrinkles or creases
..........................................................................................................
214
Vertical white lines
............................................................................................................
215
Tire tracks
.........................................................................................................................
215
White spots on black
.........................................................................................................
215
Scattered lines
..................................................................................................................
216
Blurred print
......................................................................................................................
216
Random image repetition
..................................................................................................
217
Solve network printing problems
.......................................................................................................
218
Solve copy problems
.........................................................................................................................
219
Prevent copy problems
.....................................................................................................
219
Image problems
................................................................................................................
219
Media-handling problems
.................................................................................................
220
viii
ENWW