Manual duplex Load tray <X> Press [OK] ................................... 140
Manual feed <TYPE> <SIZE> Press [OK] for available media ....... 140
Memory is low Press [OK] ........................................................ 140
Misprint Press [OK] ................................................................. 141
Print failure, press OK. If error repeats, turn off then on. ............... 141
Rear door open ....................................................................... 141
Remove shipping lock from <color> cartridge ............................. 141
Remove shipping locks from cartridges ...................................... 141
Replace <color> ..................................................................... 142
Supplies low ........................................................................... 142
Unexpected size in tray # Load <size> Press [OK] ...................... 142
Unsupported <color> Press [OK] to continue ............................... 142
Used <color> in use ................................................................ 143
Used <color> installed Press [OK] to continue ............................. 143
Used supplies in use ................................................................ 143
Yellow cartridge low ................................................................ 143
Yellow in wrong position .......................................................... 143
Yellow very low ...................................................................... 144
Event log messages ............................................................................................... 145
Clear jams .......................................................................................................................... 147
Common causes of jams ........................................................................................ 147
Jam locations ........................................................................................................ 147
Clear jams in Tray 1 .............................................................................................. 148
Clear jams in Tray 2 .............................................................................................. 149
Clear jams in the fuser area ................................................................................... 150
Clear jams in the output bin .................................................................................... 152
Clear jams in the duplexer (duplexing models only) ................................................... 152
Solve paper-handling problems .............................................................................................. 155
The product picks up multiple sheets of paper ........................................................... 155
The product does not pick up paper ........................................................................ 155
Solve image-quality problems ................................................................................................ 156
Print quality examples ............................................................................................ 156
Color image defects .............................................................................................. 160
Clean the product ................................................................................................................ 162
Clean the pickup and separation rollers ................................................................... 162
Clean the paper path ............................................................................................ 162
Solve performance problems ................................................................................................. 163
Factors affecting print performance ......................................................................... 163
Print speeds ........................................................................................... 164
The product does not print or it prints slowly ............................................................. 165
The product does not print ....................................................................... 165
ENWW ix
For mor information on LaserJet Pro 300, Pro 400 go to www.printersupplies.com
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