OKI B4400N User Manual

B4400/B4600 User’s Guide – Consumables and maintenance > 81
CONSUMABLES AND MAINTENANCE
This section deals with the replacement of the toner cartridge and 
image drum and general maintenance.
CONSUMABLE ORDER DETAILS
*typical for continuous printing
Please always use genuine consumables. 
TONER CARTRIDGE LIFE
How long your toner cartridge lasts depends on the print density; 
the percentage of the page that prints black. A typical letter has 
3% to 5% print density; graphics usually have higher density....

B4400/B4600 User’s Guide – Consumables and maintenance > 82
WHEN TO REPLACE THE TONER CARTRIDGE
B4400, B4400N
Replace the toner cartridge after Toner Low displays in the printer 
Status Monitor. Also, the Error LED indicator slowly blinks when 
toner is low. After Toner Low displays, the printer will print about 
100 more pages then display Toner Empty and stop printing. 
Printing will resume after a new toner cartridge has been 
installed.
B4600, B4600N, B4600PS, B4600NPS
When the toner is running low,...

B4400/B4600 User’s Guide – Consumables and maintenance > 83
Switch off the printer and allow the fuser to cool for about 
10 minutes before opening the top cover.
1.Press the top cover release button and open the printer’s 
top cover fully.
2.Pull the coloured lever on the right side of the toner 
cartridge towards the front of the printer to close the 
cartridge then remove the used toner cartridge.
3.Follow the installation instructions on or inside the box 
containing the new toner cartridge to...

B4400/B4600 User’s Guide – Consumables and maintenance > 84
B4600, B4600N, B4600PS, B4600NPS
When the drum reaches 90% of its life, a CHANGE DRUM 
message is displayed in the operator panel LCD. Change the 
image drum when the print becomes faint or begins to 
deteriorate.
REPLACING THE IMAGE DRUM
It is recommended that you change the toner cartridge 
and clean the LED array at the same time as you change 
the image drum.
1.Press the cover release and open the printer’s top cover 
fully.
2.Remove the...

B4400/B4600 User’s Guide – Consumables and maintenance > 85
5.Gently wipe the LED array surface with the LED lens 
cleaner that came with the new toner cartridge or soft 
tissue.
6.Close the top cover and press it down to latch it closed.
RESETTING THE DRUM COUNTER
After replacing the image drum, reset the drum counter to keep 
a correct count of the number of pages printed on the image 
drum. 
B4400, B4400N
1.Start the Status Monitor for the printer.
2.Select the Printer Setup tab, click on the Printer...

B4400/B4600 User’s Guide – Consumables and maintenance > 86
GENERATING A CLEANING PAGE
If the printed page shows signs of fading, streaking or erratic 
marks, the problem may be cleared by generating a drum 
cleaning page as follows.
B4400, B4400N
Using the printer Status Monitor
1.Start the Status Monitor for the printer.
2.Select the Printer Setup tab and click on the Printer 
Menu button. 
3.Select the Test Print tab and click on the Cleaning button.
4.Open the Manual Feed Tray and insert a sheet of...

B4400/B4600 User’s Guide – Consumables and maintenance > 87
B4600, B4600N, B4600PS, B4600NPS
1.Open the Manual Feed Tray and insert a sheet of A4 plain 
paper between the paper guides. To print from the Paper 
Tray, press the Online button when the LCD display 
prompts you to insert a sheet of paper in the Manual Feed 
Tr a y.
2.Press the Menu button repeatedly until MAINTENANCE 
MENU is displayed, then press the Select button.
3.Press the Item button until CLEANING PAGE is displayed.
4.Press the Select...

B4400/B4600 User’s Guide – Troubleshooting > 88
TROUBLESHOOTING
STATUS AND ERROR MESSAGES
Your printer has been designed to give you helpful status 
feedback not only during normal operation but also if a printing 
problem occurs so that you can take appropriate corrective 
action.
B4400, B4400N
Both status and error messages are displayed in your chosen 
language in the Status Monitor, error messages being 
accompanied by the appropriate flashing of the Error indicator. 
You can set the Status Monitor...

B4400/B4600 User’s Guide – Troubleshooting > 89
The printer may experience a paper jam in one of three areas. 
>INPUT JAM - paper has failed to leave the selected feed 
tray and enter the internal paper path of the printer. A 
typical message indicates a paper jam and identifies the 
tray to check.
>FEED JAM - paper has entered the printer but failed to 
reach the exit. A typical message indicates a paper jam 
and advises you to open the top cover for access.
>EXIT JAM - paper has reached the exit but...

B4400/B4600 User’s Guide – Troubleshooting > 90
3.Carefully lift out the image drum, complete with the toner 
cartridge. Be careful not to touch or scratch the green 
drum surface.
4.Remove any jammed sheets from the paper path.
5.Re-install the image drum complete with toner cartridge, 
ensuring that it correctly locates into the slots on each 
side of the printer.
6.Close the top cover and press down to latch it closed.
7.The printer will warm up and commence printing when 
ready. The page lost through...