LED diagnostics ............................................................................................................... 229
Control-panel diagnostics ................................................................................................ 230
Fax reports ....................................................................................................................... 230
Diagrams ......................................................................................................................... 240
Print-quality troubleshooting tools .................................................................................... 252
Internal print quality test pages ........................................................................................ 253
Engine print mode specifications ..................................................................................... 255
HP ToolboxFX software ................................................................................................... 256
Control-panel messages .................................................................................................................. 257
Event-log messages ......................................................................................................................... 277
Print the event log ............................................................................................................ 277
Event log messages ........................................................................................................ 277
Event-log-only messages ................................................................................................ 279
Paper-handling problems ................................................................................................................. 281
Jams ................................................................................................................................ 281
Solve image quality problems .......................................................................................................... 295
General image quality problems ...................................................................................... 295
Solve issues with color documents .................................................................................. 299
Copy problems ................................................................................................................. 300
Scan problems ................................................................................................................. 304
Solve performance problems ........................................................................................................... 308
Solve connectivity problems ............................................................................................................. 309
Solve direct-connection problems .................................................................................... 309
Solve network problems (network models only) .............................................................. 309
Service mode functions .................................................................................................................... 311
Service menu ................................................................................................................... 311
Secondary service menu ................................................................................................. 311
Product resets .................................................................................................................. 313
Solve fax problems (fax/memory-card models only) ........................................................................ 314
Fax logs and reports ........................................................................................................ 314
Change error correction and fax speed ........................................................................... 316
Problems sending faxes .................................................................................................. 317
Problems receiving faxes ................................................................................................. 319
Performance problems .................................................................................................... 322
Memory card problems (fax/memory-card models only) .................................................................. 323
Missing or wrong files ...................................................................................................... 323
Index page not printing .................................................................................................... 323
Proof sheet not printing .................................................................................................... 324
Proof sheet not scanning ................................................................................................. 324
Issues with photo printing ................................................................................................ 325
8 Parts and diagrams
Order parts, accessories, and supplies ............................................................................................ 328
ENWW vii
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