Vertical lines .................................................................................................... 243
Gray background ............................................................................................. 243
Toner smear .................................................................................................... 244
Loose toner ..................................................................................................... 244
Vertical repetitive defects ................................................................................ 244
Misformed characters ...................................................................................... 244
Page skew ....................................................................................................... 245
Curl or wave .................................................................................................... 245
Wrinkles or creases ......................................................................................... 245
Toner scatter outline ....................................................................................... 246
Solve print-quality problems ............................................................................................................. 247
Print-quality problems associated with paper .................................................................. 247
Print-quality problems associated with the environment .................................................. 247
Print-quality problems associated with jams .................................................................... 247
Solve performance problems ........................................................................................................... 248
Solve connectivity problems ............................................................................................................. 249
Solve direct-connect problems ........................................................................................ 249
Solve network problems .................................................................................................. 249
Service mode functions .................................................................................................................... 250
Secondary service menu (HP LaserJet P2050 Series Printers only) .............................. 250
Open the secondary service menu ................................................................. 250
Secondary service menu structure .................................................................. 250
Engine resets ................................................................................................................... 251
Engine test page ............................................................................................. 251
Restore defaults .............................................................................................. 251
NVRAM initialization (HP LaserJet P2050 Series Printers only) ..................... 251
8 Parts and diagrams
Order parts, accessories, and supplies ............................................................................................ 254
Part numbers .................................................................................................................................... 255
Paper-handling accessories ............................................................................................ 255
Print cartridges ................................................................................................................. 255
Memory ............................................................................................................................ 255
Cables and interfaces ...................................................................................................... 255
Whole unit replacement ................................................................................................... 256
Screws .............................................................................................................................................. 257
How to use the parts lists and diagrams .......................................................................................... 258
External covers, panels, and doors .................................................................................................. 260
HP LaserJet P2035 .......................................................................................................... 260
HP LaserJet P2055 .......................................................................................................... 262
Internal components ......................................................................................................................... 264
Internal components 1 of 5 .............................................................................................. 264
Internal components 2 of 5 .............................................................................................. 266
ENWW ix