The product is using incorrect link and duplex settings for the network ................... 500
New software programs might be causing compatibility problems ........................... 500
The computer or workstation might be set up incorrectly .......................................... 500
The product is disabled, or other network settings are incorrect ............................... 500
Service mode functions ..................................................................................................................................... 501
Service menu ................................................................................................................................... 501
Product resets ................................................................................................................................. 506
Restore factory-set defaults ........................................................................................ 506
Restore the service ID ................................................................................................... 507
Product cold reset ........................................................................................................ 507
Format Disk and Partial Clean functions ........................................................................................ 508
Active and repository firmware locations .................................................................... 508
Partial Clean .................................................................................................................. 508
Execute a Partial Clean ............................................................................... 509
Format Disk ................................................................................................................... 509
Execute a Format Disk ................................................................................ 510
Solve fax problems (M680) ............................................................................................................................... 511
Checklist for solving fax problems ................................................................................................. 511
What type of phone line are you using? ....................................................................... 511
Are you using a surge-protection device? .................................................................... 511
Are you using a phone company voice-messaging service or an answering
machine? ....................................................................................................................... 511
Does your phone line have a call-waiting feature? ..................................................... 511
Check fax accessory status .......................................................................................... 512
General fax problems ...................................................................................................................... 513
The fax failed to send ................................................................................................... 513
An Out of Memory status message displays on the product control panel ................ 513
Print quality of a photo is poor or prints as a gray box ............................................... 513
You touched the Stop button to cancel a fax, but the fax was still sent ..................... 513
No fax address book button displays ........................................................................... 513
Not able to locate the Fax settings in HP Web Jetadmin ............................................. 513
The header is appended to the top of the page when the overlay option is enabled 513
A mix of names and numbers is in the recipients box ................................................. 513
A one-page fax prints as two pages ............................................................................. 514
A document stops in the document feeder in the middle of faxing ............................ 514
The volume for sounds coming from the fax accessory is too high or too low .......... 514
Use Fax over VoIP networks ........................................................................................................... 515
Problems with receiving faxes ........................................................................................................ 516
Problems with sending faxes ......................................................................................................... 518
Fax error messages on the product control panel ......................................................................... 519
Send-fax messages ...................................................................................................... 520
xii ENWW
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