HP LaserJet 3050 - Page 11

Secondary service menu ................................................................................................. 251
To gain access to the secondary service menu .............................................. 251
To print a list of all the fax data-store parameters ........................................... 251
Developer’s menu ............................................................................................................ 252
To gain access to the developer’s menu ......................................................... 253
To adjust fax data-store parameters ............................................................... 253
To scroll quickly to a particular data-store parameter ..................................... 253
Changing the country/region code parameters ................................................................ 254
To change the country/region from one location to another ............................ 254
To set the language and location if none is set ............................................... 254
Soft reset ......................................................................................................................... 255
Performing a soft reset .................................................................................... 255
Super NVRAM init ............................................................................................................ 255
To perform a super NVRAM init ...................................................................... 255
NVRAM init ..................................................................................................................... 256
To perform an NVRAM init .............................................................................. 256
System settings for localized products ............................................................................ 257
Printer job language (PJL) software commands .............................................................. 258
Troubleshooting tools ....................................................................................................................... 259
Printing a configuration report, demonstration page, or menu structure .......................... 259
Printing all fax reports at once (HP LaserJet 3050/3055 all-in-one) ................................ 259
T.30 protocol trace (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only) 260
To print a T.30 protocol trace report ................................................................ 260
Fax error-correction mode (ECM) (HP LaserJet 3050 all-in-one
and HP LaserJet 3055 all-in-one only) ........................................... 260
V.34 fax standard ............................................................................................ 261
Fax receive and fax send codes ..................................................................... 261
Translating the fax trace report (HP LaserJet 3050 all-in-one and
HP LaserJet 3055 all-in-one only) ................................................................... 270
Repetitive image defect ruler .......................................................................................... 278
Firmware updates and recovery ....................................................................................................... 279
7 Parts and diagrams
Ordering parts and supplies ............................................................................................................. 282
Parts that wear ................................................................................................................ 282
Parts ................................................................................................................................ 282
World-wide customer support .......................................................................................... 282
Accessories ...................................................................................................................................... 283
Documentation ................................................................................................................. 284
Common hardware ......................................................................................................... 285
How to use the parts lists and diagrams .......................................................................... 285
Replacing the printer engine assembly ............................................................................ 285
Diagrams .......................................................................................................................................... 288
Component locations, HP LaserJet 3050/3052/3055 all-in-one printer (product
base) ................................................................................................................................ 288
Main wiring ...................................................................................................................... 291
Formatter PCA and LIU connectors ................................................................................. 295
HP LaserJet 3050 all-in-one scanner assembly ............................................................................... 298
ADF components, HP LaserJet 3050 all-in-one .............................................................. 300
Guide assembly, HP LaserJet 3050 all-in-one ................................................................ 304
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