HP Color LaserJet Enterprise M751n Laser Printer - Manual (Page 9)

6 Solve problems ..................................................................................................................................................................................... 113
Customer support ................................................................................................................................................................ 114
Control panel help system ................................................................................................................................................. 115
Reset factory settings ......................................................................................................................................................... 116
Introduction ...................................................................................................................................................... 116
Method one: Restore factory settings from the printer control panel ................................................... 116
Method two: Restore factory settings from the HP Embedded Web Server (network-connected
printers only) .................................................................................................................................................... 116
A “Cartridge is low” or “Cartridge is very low” message displays on the printer control panel ............................... 117
Change the “Very Low” settings ................................................................................................................... 117
Order supplies ............................................................................................................................. 117
Printer does not pick up paper or misfeeds .................................................................................................................... 118
Introduction ...................................................................................................................................................... 118
The printer does not pick up paper .............................................................................................................. 118
The printer picks up multiple sheets of paper ............................................................................................ 120
Clear paper jams .................................................................................................................................................................. 124
Introduction ...................................................................................................................................................... 124
Paper jam locations ........................................................................................................................................ 124
Auto-navigation for clearing paper jams ..................................................................................................... 125
Experiencing frequent or recurring paper jams? ....................................................................................... 125
Clear paper jams in Tray 1 (13.A1) ............................................................................................................... 126
Clear paper jams in Tray 2 (13.A2) ............................................................................................................... 130
Clear jams in the fuser (13.B9, 13.B2, 13.FF) ............................................................................................. 135
Clear paper jams in the output bin (13.E1) ................................................................................................. 139
Clear jams in the duplex area (13.D3) .......................................................................................................... 139
Clear paper jams in the 550-sheet trays (13.A3, 13.A4) .......................................................................... 142
Clear paper jams in the 2 x 550 paper trays (13.A4, 13.A5) .................................................................... 149
Clear paper jams in the 2,700-sheet high-capacity input paper trays (13.A3, 13.A4, 13.A5,
13.A7) ................................................................................................................................................................ 155
Resolve print-quality problems ......................................................................................................................................... 161
Introduction ...................................................................................................................................................... 161
Troubleshoot print quality ............................................................................................................................. 161
Update the printer firmware ..................................................................................................... 161
Print from a different software program ................................................................................ 161
Check the paper-type setting for the print job ...................................................................... 161
Check the paper type setting on the printer ..................................................... 162
Check the paper type setting (Windows) ........................................................... 162
Check the paper type setting (macOS) ............................................................... 162
Check toner-cartridge status .................................................................................................... 162
Print a cleaning page .................................................................................................................. 163
Visually inspect the toner cartridge or cartridges ................................................................. 163
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