HP LaserJet Enterprise M552 - Page 15

Clear the event log ..................................................................................... 391
Solve image-quality problems .......................................................................................................................... 392
Improve print quality ...................................................................................................................... 392
Color band test .............................................................................................................. 392
Repetitive image defect ruler ....................................................................................... 393
Use a ruler to measure between repetitive defects .................................. 394
Print-quality troubleshooting pages ............................................................................ 397
Print-quality assessment page .................................................................................... 401
Print from a dierent software program ..................................................................... 402
Check the paper-type setting for the print job ............................................................ 403
Check toner-cartridge status ....................................................................................... 403
Clean the printer ........................................................................................................... 404
Print a cleaning page .................................................................................. 404
Visually inspect the toner cartridge or cartridges ....................................................... 404
Check paper and the printing environment ................................................................. 405
Calibrate the printer ...................................................................................................... 405
Use manual print modes ............................................................................................... 406
Image defects table ...................................................................................................... 409
Clean the printer ................................................................................................................................................ 417
Clean the paper path ....................................................................................................................... 417
Print a cleaning page ....................................................................................................................... 417
Clean the Tray 1 rollers ................................................................................................................... 418
Step 1: Remove the Tray 1 pickup roller ....................................................................... 418
Step 2: Remove the Tray 1 separation roller ................................................................ 420
Step 3: Clean the Tray 1 rollers ..................................................................................... 422
Step 4: Install the Tray 1 separation roller ................................................................... 423
Step 5: Install the Tray 1 pickup roller .......................................................................... 426
Clean the Tray 2-X rollers ................................................................................................................ 429
Step 1: Remove the Tray 2-X paper pickup roller assembly ........................................ 429
Step 2: Remove the Tray 2-X separation roller ............................................................ 432
Step 3: Clean the Tray 2-X rollers ................................................................................. 434
Step 4: Install the Tray 2-X separation roller ............................................................... 434
Step 5: Install the Tray 2-X paper pickup roller assembly ........................................... 436
Check the scanner glass for dirt and smudges (M577 only) .......................................................... 439
Clean the pickup rollers and separation pad in the document feeder (M577 only) ....................... 442
Solve paper handling problems ........................................................................................................................ 444
Printer feeds incorrect page size .................................................................................................... 444
Printer pulls from incorrect tray ..................................................................................................... 444
Printer will not duplex or duplexes incorrectly ............................................................................... 444
Paper does not feed from Tray 2-X ................................................................................................. 445
Output is curled or wrinkled ............................................................................................................ 445
ENWW xiii