HP LaserJet Pro 400 Printer M401 series - Manual (Page 8)

Change the toner cartridge ...................................................................................... 77
Memory ................................................................................................................................ 79
Update the firmware ............................................................................................................... 80
Manually update the firmware (LCD control panel) ...................................................... 80
Manually update the firmware (touchscreen control panel) ........................................... 80
Set the product to automatically update the firmware (LCD control panel) ....................... 80
Set the product to automatically update the firmware (touchscreen control panel) ............ 81
5 Solve problems ............................................................................................................... 83
Solve problems checklist ......................................................................................................... 84
Step 1: Make sure that the product is set up correctly .................................................. 84
Step 2: Check the cabling or wireless connection ........................................................ 84
Step 3: Check the control panel for error messages ..................................................... 85
Step 4: Check the paper .......................................................................................... 85
Step 5: Check the software ....................................................................................... 85
Step 6: Test print functionality ................................................................................... 85
Step 7: Check the toner cartridge .............................................................................. 85
Step 8: Try sending a print job from a computer ......................................................... 85
Restore the factory-set defaults ................................................................................................. 86
Restore the factory-set defaults (LCD control panel) ...................................................... 86
Restore the factory-set defaults (touchscreen control panel) ............................................ 86
Control panel help system ....................................................................................................... 87
Interpret control panel messages .............................................................................................. 88
Control panel message types .................................................................................... 88
Control panel messages ........................................................................................... 88
10.x000 Supply Error ............................................................................... 88
49 Error Turn off then on ........................................................................... 88
50.x Fuser Error Turn off then on ................................................................ 89
51.XX Error Turn off then on ...................................................................... 89
54.XX Error Turn off then on ...................................................................... 89
55.X Error Turn off then on ........................................................................ 89
57 Fan error Turn off then on ..................................................................... 90
59.X Error Turn off then on ........................................................................ 90
79 Error Turn off then on ........................................................................... 90
79 Service error Turn off then on ................................................................ 91
Black cartridge low .................................................................................. 91
Black cartridge very low ........................................................................... 91
Cleaning ................................................................................................. 91
Device error Press [OK] ............................................................................. 92
Door open ............................................................................................... 92
Genuine HP supply installed ...................................................................... 92
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