HP — HP LaserJet Pro 300/400 Color Service Manual (EN)

Manual duplex Load tray Press [OK] ................................... 140 Manual feed 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 cartridge ............................. 141 Remove shipping locks from cartridges ......................................

141 Replace ..................................................................... 142 Supplies low ........................................................................... 142 Unexpected size in tray # Load Press [OK] ...................... 142 Unsupported Press [OK] to continue ............................... 142 Used in use ................................................................ 143 Used 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 Solve image-quality problems ................................................................................................ 156 The product does not pick up paper ........................................................................ 155 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