HP LaserJet Pro 400 M401 User Manual

1.If you can see the jammed sheet, remove the
jammed sheet by pulling it straight out.  
2.
If you cannot see the ja mmed sheet, open the
print cartridge door, and  then remove the print
cartridge.  
ENWW
Clear jams
99 

3.Remove the jammed sheet by pulling it straight
out.
CAUTION: Do not pull up on the jammed
sheet. Be sure to pull it straight out.  
4.
Reinstall the print cartri dge, and then close the
print cartridge door.  
Clear a jam in Tray 2 
1.
Remove the tray from the product.  
100 Chapter 5   Solve problems ENWW 

2.Remove the jammed sheet by pulling it straight
out.  
3.
Replace the tray.  
4.Press the  OK button to continue printing.  
ENWW Clear jams
101 

Clear a jam in optional Tray 3
1.Remove the tray from the product.  
2.Remove the jammed sheet by pulling it straight
out.  
3.
Replace the tray.  
4.Press the  OK button to continue printing.  
102 Chapter 5   Solve problems ENWW 

Clear jams from the output bin
CAUTION:Do not use sharp objects, such as tweezers or needle-nose pliers, to remove jams.
Damage caused by sharp objects wi ll not be covered by the warranty.
1.With both hands, grasp the paper, and
carefully pull it free from the product.  
Clear a jam in the duplexer area
1.
Open the rear door.  
ENWW Clear jams
103 

2.Remove any jammed sheets.
NOTE: If the sheet tears, remove all
fragments before re suming printing.
CAUTION: Wait until the fuser area has
cooled before clearing the jam.  
3.
Close the rear door.  
Clear a jam in the fuser area
1.Open the rear door.  
104 Chapter 5   Solve problems ENWW 

2.Remove any jammed sheets.
NOTE: If the sheet tears, remove all
fragments before re suming printing.
CAUTION: Wait until the fuser area has
cooled before clearing the jam.  
3.
Close the rear door.  
ENWW Clear jams
105 

Improve print quality
Check the paper type setting (Windows)
Check the paper type setting if you are having any of the following problems:
● Toner is smearing on the printed pages.
● Repeated marks occur on the printed pages.
● Printed pages are curled.
● Toner flakes off the printed pages.
● Printed pages have small unprinted areas.
1. From the software program, select the  Print option.
2. Select the product, and then click the  Properties or Preferences  button.
3. Click the  Paper/Quality  tab.
4....

6.Select a type from the  Media-type drop-down list.
7. Click the  Print button.
Check toner cartridge status
Print the supplies status  page (LCD control panel)
Information pages reside within the product memo ry. These pages help diagnose and solve problems
with the product.
NOTE: If the product language was not correctly set  during installation, you can set the language
manually so the information pages print in one of  the supported languages. Change the language by
using the  System Setup  menu on...

Print a cleaning page
Print a cleaning page to remove dust and excess toner from the paper path if you are having any of the
following problems:
● Specks of toner are on the printed pages.
● Toner is smearing on the printed pages.
● Repeated marks occur on the printed pages.
Print a cleaning page (LCD control panel)
1.
On the product control panel, press the  OK button to open the menus.
2. Open the following menus:
● Service
● Cleaning Page
3. Load plain paper in Tray 1, and then press the  OK button to...