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PC Load Letter? What the F' does that mean?

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Written by John Gruber Published on Aug 26, 2024 Last Updated on Sep 19, 2024

The other day my printer broke. It's a cheap but nice Brother printer. It uses toner because I got sick of the ink drying up and emptying my wallet. Anyway, it had an error saying something super generic like "There's an error. Reboot to fix it. 0B". I surfed the web, and it came back with a "contact Brother support" and I was like "Not gonna happen". What else you got? That was it. That was what Brother's website recommended...

So, a quick Copilot search and it turns out I needed to take out the toner... toner cartridges... toner holder things and clean them with a little switch. Thanks to Copilot I didn't buy a new printer. Anyway. Copilot can be great for troubleshooting. For example: "What does the error PC LOAD LETTER mean on my printer?"

As you can see Copilot can easily help you troubleshoot issues. But let's get a little tougher of an issue.

Fixing my lawn mower

I had to fix my lawn mower the other day. It wouldn't start. I replaced the spark plugs, attempted to jump the battery twice, and was on the cusp of buying a new battery before I found out it was a darn fuse. Let's see if Copilot can point us to the fuse.

Let's start generic: "My lawn mower won't start. Do you have any ideas on how to fix it? I'm not very technical so please keep the responses simple and short."

Notice I have my goal, context, and expectations although my context and expectations are a bit mushed together.

Swing and a miss on the first attempt. Let's add more information: "It's not any of that. It's a riding mower and when I turn the key there are no sounds or anything. I can see the battery has a charge with my voltmeter"

This is exactly what I did when I first started troubleshooting.

Faulty ignition switch. That's interesting and something I don't know how to test. I almost replaced mine too. I tried to test it for connectivity or resistance to make sure the electricity was crossing the switch, but I didn't get any output. I follow a simple principle. When in doubt, replace it.

Anyway, let's ask Copilot for more information. "How do I check for a faulty ignition switch?"

I'm an idiot. Of course, I need to key in and turn to the on position to get connectivity across the ignition switch. I learned something new today. Anyway, let's go back to it. "The ignition switch is fine. But I now see I'm not getting any volts to the switch. Is there anything in between the switch and the battery that I can check?"

There it is. Number 3. The fuse. Thanks Copilot!

So, as you can see Copilot has a context or a topic that it will remember while you ask it questions.

And that's how you can use prompts, and context to learn something new. Give it a try yourself.

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