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Calculator Community => Other Calculators => Topic started by: tloz128 on September 23, 2010, 05:45:15 pm

Title: Ballpoint pen mark on ti-84 screen
Post by: tloz128 on September 23, 2010, 05:45:15 pm
So after leaving my calc in my backpack, it appears to have gotten a pen mark on the screen, and I can't seem to get it off. It doesn't affect the usability of the it though- it's just annoying. Does anybody know of a good solution to wipe it off? (without damaging the LCD of course)
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: yunhua98 on September 23, 2010, 05:51:06 pm
if its the dry ink, use a coin gently to scratch it off, if its liquid ink, use a slightly wet cottonball.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: tloz128 on September 23, 2010, 05:57:53 pm
Thanks for the advice yunhua, however the cotton ball didn't work and the coin seemed to fade it a bit  :-\. Maybe I'll keep trying
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: SirCmpwn on September 23, 2010, 06:00:55 pm
Use Acetone.  It's in nail polish remover.  Put some on a cotton ball and rub it gently.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 23, 2010, 06:03:09 pm
Ouch I hope you can get rid of the mark. In Geekboy1011's case, I think something was squeezed on the calc LCD for a while and it left a permanent LCD mark somewhere, making the screen hard to see. In your case, fortunately it's a pen mark so it should not be as bad. Just be careful to not scratch the LCD while getting rid of the mark.

In my case, last year once I accidentally spilled 7-UP on my TI-Nspire. Fortunately I got time to remove it before it gets inside the screen edges or the keys, but it was all sticky x.x
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: tloz128 on September 23, 2010, 06:05:06 pm
@DJ oh yeah I hate it when I spill soda on my keyboard. It's really annoying.
@SirCmpwn okay thanks I'll try that as soon as I'm able to :)
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: qazz42 on September 23, 2010, 06:19:33 pm
oh, I remember when I spilled iced tea on a keyboard

nothing was harmed :)
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: SirCmpwn on September 23, 2010, 06:20:17 pm
Yeah, I love how people tell you the world will end if you spill something on a keyboard, which is a complete lie.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: meishe91 on September 23, 2010, 06:21:59 pm
Ya, acetone or even rubbing alcohol or something should do it. Just get a cotton ball, dampen it a bit and rub gently.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 23, 2010, 06:24:33 pm
In my case, last year once I accidentally spilled 7-UP on my TI-Nspire. Fortunately I got time to remove it before it gets inside the screen edges or the keys, but it was all sticky x.x

Yeah, I once spilled juice into the lower half of my calc. Now half the keys are kinda sticky, making a lot of games harder than before :P I've been trying to find screwdrivers that I could use to take the case off, but I can't get any. Is there another way to open the case?

tloz128: Hopefully it didn't leave a dent in your screen :-\ And about the coin, use one without ridges, like a penny. Polish remover should work fine, though. I've used it on my case before.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 23, 2010, 06:27:33 pm
Yeah, I love how people tell you the world will end if you spill something on a keyboard, which is a complete lie.
Except that if you don't (or can't) clean it afterward, the keys can get sticky and with some substances like coffee it eventually smells terrible x.x
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: patriotsfan on September 23, 2010, 06:29:29 pm
Well, I never put any liquid or drink beside me when I'm using a calculator or a computer in the first place.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: meishe91 on September 23, 2010, 06:29:46 pm
In my case, last year once I accidentally spilled 7-UP on my TI-Nspire. Fortunately I got time to remove it before it gets inside the screen edges or the keys, but it was all sticky x.x

Yeah, I once spilled juice into the lower half of my calc. Now half the keys are kinda sticky, making a lot of games harder than before :P I've been trying to find screwdrivers that I could use to take the case off, but I can't get any. Is there another way to open the case?

tloz128: Hopefully it didn't leave a dent in your screen :-\ And about the coin, use one without ridges, like a penny. Polish remover should work fine, though. I've used it on my case before.

Not without horribly damaging the case in the process, to my knowledge. I think the calculators use hex screws.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 23, 2010, 06:38:35 pm
In my case, last year once I accidentally spilled 7-UP on my TI-Nspire. Fortunately I got time to remove it before it gets inside the screen edges or the keys, but it was all sticky x.x

Yeah, I once spilled juice into the lower half of my calc. Now half the keys are kinda sticky, making a lot of games harder than before :P I've been trying to find screwdrivers that I could use to take the case off, but I can't get any. Is there another way to open the case?

tloz128: Hopefully it didn't leave a dent in your screen :-\ And about the coin, use one without ridges, like a penny. Polish remover should work fine, though. I've used it on my case before.

Not without horribly damaging the case in the process, to my knowledge. I think the calculators use hex screws.

Yeah, and the smallest hex screws we have are depressingly large. Oh well...
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: SirCmpwn on September 23, 2010, 06:42:10 pm
I actually found this thing, the General tool 4-in-1 screwdriver (http://www.generaltools.com/Products/Pocket-4-In-1-Mini-Screwdriver__744.aspx (http://www.generaltools.com/Products/Pocket-4-In-1-Mini-Screwdriver__744.aspx)), whose smallest flathead bit is better at taking screws out of a calculator than a hex key.  Seriously, guys, this thing is awesome, and only 3 bucks.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 23, 2010, 06:45:20 pm
I wonder if there's a place that ship that worldwide... over here I do not think I ever saw that before...
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 23, 2010, 06:46:43 pm
Hm, would really tiny flathead screwdrivers work?
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: SirCmpwn on September 23, 2010, 06:48:16 pm
Well, the one I liked to certainly does.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 23, 2010, 07:01:11 pm
I don't want to spend $800 on shipping fees either, though.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Ranman on September 23, 2010, 07:16:24 pm
Back in 1988... I spilled some Coca-Cola on one of my 5.25" Ultima V floppy disks...

(http://upload.wikimedia.org/wikipedia/commons/d/d8/Floppy_disk_5.25_inch.JPG)

The cola seeped inside of the floppy enclosure and got all over the disk itself. I carefully took a razor blade and cut a slit into the side of the floppy and pulled the disk out. Then I cleaned it off with a damp washcloth and placed it into a different floppy enclosure.

I was crapping my pants because Ultima V cost me $60 in 1988. :-X

In the end... I was able to save the disk. ;D
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 23, 2010, 07:17:21 pm
Lol ... ah, reminds me of that "1996" xkcd comic ;D
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 23, 2010, 07:20:07 pm
WOW, I didn't realize those could be saved from such incidents o.o.

I am pretty sure with a VHS tape, it might be over after spilling lots of stuff near the part where there are holes leading to the tape.

And darn those disks were kinda large back in the days. I only ever got to see 3.25'' ones. Aah... the good ol' days where we had to use like 10 floppies to install a 10 MB game ;D
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: thepenguin77 on September 23, 2010, 08:26:08 pm
Deep Thought. A small flat head screwdriver is what I always use to open mine. But you probably don't have one that is the exact size you need. So what I did was to get a screwdriver that just barely doesn't fit and file down one side of it. Now, I have one screwdriver that takes out all 13 screws.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 23, 2010, 08:37:34 pm
Mmh, smart. Yeah, the small one's too small and the large one's too large, and they're practically useless anyway. Well, thanks for the tip :)
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: ztrumpet on September 24, 2010, 10:07:38 pm
I hope you can get it removed.  I know what it's like to have a marked screen (there was this flying chair...) and it's a little bothersome.  Good luck. ;D
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 24, 2010, 10:24:04 pm
(there was this flying chair...)
I remember that one. I forgot how that actually happened x.x
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: tloz128 on September 24, 2010, 11:14:33 pm
Well, I was able to fade it a little using the penny and the rubbing alcohol, but alas it is still there. Oh well, it's not very large at all, but just has a tendency to drag my eyes away from the action occurring on the screen, which can be a bit bothersome.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 24, 2010, 11:33:29 pm
Sorry to hear :(. I wonder if it will eventually go away with the time?
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: tloz128 on September 24, 2010, 11:41:47 pm
It doesn't look like this thing is going anywhere as of now. I'll try looking into some other solutions. Again, though, it doesn't affect the usability of it at all.
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 25, 2010, 10:14:28 pm
Still sucks to have a mark on the screen, though. Oh well, hope you can get it off eventually.

Oh, and thank you so much for the tip, thepenguin77! Just finished my first-ever case mod... :)
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: yunhua98 on September 25, 2010, 10:16:08 pm
can we haz a pic?  :P

best of luck to getting off the mark!
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: DJ Omnimaga on September 25, 2010, 10:16:33 pm
Nice, Deep Thought, you should post pics or what special stuff it does
Title: Re: Ballpoint pen mark on ti-84 screen
Post by: Deep Toaster on September 25, 2010, 10:28:30 pm
Eh, not much, just between two 83+s (but even then, TI apparently completely changed the case structure around 2009, so that took a bit of work, especially as all I had to work with was a fruit knife :P). The only visible change on the outside is that I flipped the ON key (it now says NO :D).