![](/images/backgrounds/163373/163373-17088x1.png)
Control Panel
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| LED | Printer status |
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| Receiving data |
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| The printer is either receiving data from the computer, processing data in memory |
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| or printing the data. |
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| The Status LED will turn on for 0.5 seconds and off for 0.5 seconds. |
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| Cooling down |
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| The printer is cooling down. Wait for a few seconds until inside of the printer has |
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| cooled down. | 4 |
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| The Status LED will turn on for 1 second and off for 1 second. | |
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| Data remaining in memory |
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| There is remaining print data in the printer memory. If the yellow Status LED is on |
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| for a long time and nothing has printed, press Go to print the remaining data in |
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| memory. |
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Toner low
Indicates that the toner cartridge is near the end of its life. Buy a new toner cartridge and have it ready for when Replace Toner is indicated.
The Toner LED will turn on for 2 seconds and off for 3 seconds.
Replace toner
Replace the toner cartridge with a new one. See Replacing the toner cartridge on page 94.
Cartridge error
The drum unit assembly is not installed correctly. Take the drum unit out of the machine and put it back in.
No toner
Open the front cover, install the toner cartridge. See Toner cartridge on page 93.
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