Dell 3330dn Mono Laser Printer - Manual (Page 124)

251.yy Paper jam
The message indicates either where the paper is jammed or the number of pages jammed.
1 Remove the jam from the multipurpose feeder.
2 Press to continue printing.
900–999 Service <message>
1 Turn the printer off.
2 Unplug the power cord from the wall outlet.
3 Check all cable connections.
4 Connect the power cord to a properly grounded outlet.
5 Turn the printer back on.
If the service message appears again, contact Customer Support, and report the message.
1565 Emulation error, load emulation option
The printer automatically clears the message in 30 seconds and then disables the download emulator on the firmware
card.
Understanding printer messages
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