Replacing the Toner Cartridge
The machine displays a message when the amount remaining in the toner cartridge is low. Note that the print quality may suffer if you continue printing without resolving this issue. You can check the amount remaining in the toner cartridges on the display (Checking the Remaining Amount of Consumables).
When a Message Appear
The message that is displayed depends on the amount remaining in the toner cartridges. Depending on which message is displayed, prepare a new toner cartridge (Consumables) or replace the current toner cartridge with a new one (Procedure for Replacing the Toner Cartridge).
<Prepare cartridge.> 
This message notifies you that a toner cartridge needs to be replaced soon. Make sure that you have a replacement toner cartridge ready. Replace the toner cartridge if you see this message before you start to print a large job.
 When this message is displayed
When copying or printing, you can continue printing the original.
If a message is displayed when the machine is receiving a fax or automatic report output is set, received faxes and reports will be stored in memory so that they do not appear faded after they are printed. To continue printing even if the amount remaining in toner cartridge is running low, set <Continue Print. When Cart. Low> to <On>. <Continue Print. When Cart. Low>
Specify when this message is displayed
You can set any value as the percentage of the amount remaining in the toner cartridge that triggers this message. <Display Timing for Cart. Prep.>
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<End of cartridge lifetime.>
This message notifies you that a toner cartridge has reached the end of its lifetime. It is recommended that you replace the cartridge with a new one. You can continue printing, but the print quality cannot be guaranteed.
When Printouts are Poor in Quality
If your printouts begin to show any of the following features, one of your toner cartridges is consumed. Replace the nearly empty toner cartridge even if no message is displayed. Procedure for Replacing the Toner Cartridge
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Streaks Appear/Printing is Uneven
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Partially faded
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Uneven density
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White Spots Appear
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Toner smudges and splatters appear
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Blank space of originals becomes grayish in printouts
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Procedure for Replacing the Toner Cartridge
Follow the procedure below to replace the toner cartridge.
1
Open the front cover.
2
Remove the toner cartridge.
3
Remove the replacement toner cartridge from the protective case.
4
Shake the toner cartridge 5 or 6 times as shown below to evenly distribute the toner inside the cartridge.
5
Install the toner cartridge.
Fully push it in until it cannot go any further.
6
Close the front cover.