Dell 2135cn Service Manual page 276

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Chapter 1 Troubleshooting

While the firmware download is being executed, the printer displays a message

"Writing...USB F/W" and the computer displays a progress bar and may be

restarted during the downloading process. Never power off the printer or the

computer until the downloading process completes, and never interrupt the

downloading process.

Version 4.2 2009.08.25

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