HP 2820, 2840, 2830 instruction

Image problems	280
Media-handling problems	282
Performance problems	283
Fax problems	285
Problems receiving faxes	285
Problems sending faxes	287
Voice call problems	288
Media-handling problems	289
Performance problems	289
Memory card problems	291
Missing or wrong files	291
Index page not printing	291
Proof sheet not printing	292
Proof sheet not scanning	292
Issues with photo printing	293
Functional tests	295
Engine test	295
Half self-test check	296
Heating element test	296
Cartridge high-voltage contact test	299
Paper-path test	299
Service-mode functions	301
NVRAM initialization	301
Secondary service menu	301
To print secondary service reports	303
Troubleshooting tools	306
Device pages and reports	306
Demo page	306
Configuration page	306
Supplies Status page	306
Usage page	306
Engine-test page	307
Error log	307
Fax reports	307
Fax activity log	307
Fax call report	307
T.30 protocol trace	308
HP Toolbox	317
To view HP Toolbox	317
Troubleshooting tab	317
Service menu	318
Restoring the factory-set defaults	318
Cleaning the paper path	318
Setting the scanner bulb power save time	319
Reducing paper curl	319
Service-only tools	320
Timing charts	320
Locations of connectors	322
DC controller connections	325
Printer calibration	326

ENWW