Hi welcome to Tear down Tuesday Why am I sitting on the floor on a blue drop sheet in my bare feet? Well, we're going to get a bit messy today. Maybe. Um, this one will be a bit different. Usually we open uh products to see how they work inside, how they designed, all manufactured, all that sort of stuff.

But I thought well I just take some uh, dumpster diving office stuff I've uh, got from the junk room and uh, take them apart and see if there's any useful stuffing them. So I've had these sitting around for some time. they're just taking up room here in the lab getting really annoying. So I thought we'd take them.

Apart Salvage all the uh, useful uh stuff out of them or stuff that'll sit in the uh uh junk uh box for you know, 20 years until I toss it out then or san tosses out. Ah, who knows. I've still got stuff in my junk bin from 30 years ago. Geez, let's not go there anyway.

see what useful stuff is inside these things? just basic, um, office equipment. We've got these multi-function uh printer fax, uh, scanner, uh type things we've got uh Laser Printers and a uh fax machine. so just your general office stuff that you might think, ah, heaper garbage. Is there anything good in them? Usable? Well, let's find out.

So you know what we say here on the EV blog. Don't turn it on, take it apart first cab off the rank this uh Samsung fax machine. very basic thing. It's an S SF 341 P inkjet Allin one.

So no, it's not as good as say, a laser based one. laser is going to have a bit more uh, goodness in them. but um. anyway.

um, we'll see if there's anything useful inside a basic fax machine like this. It looks like we're getting down into some useful Parts already. Of course there's nothing on, uh, these type of front. p P Pcbs there's an LCD but it's you know it's going to be a custom type.

Really? no point. uh, scaming that of course. what do you do with uh, membranes like that and other, uh. front panel Jazz Not really much, but you know you start getting into uh, some of the boards in here which we're getting into.

There's a couple of Motors down in here. There's some, uh, gears if you're into cogs and uh, stuff if you're into, uh, that sort of thing. and uh, another motor over there. So we're getting.

There's some ferites down in there. We've got a couple of Ferites over here on this stuff. Really good. They worth Salvage In we got a power supply Main's power supply board down the bottom there.

of course that would, uh, still be usable. So yeah, not too bad. I Mean, of course, you know main logic, uh, control cards like this. They're good for um, things like you know, surface mount soldering or desoldering or rework? uh uh, you know, uh, training and practice and stuff like that.

But apart from that, um, you know you might be able to find the odd useful part. There's some nice looking inductors there. Of course, you're not going to bother salvaging the Caps out of them really. And all the you know, what are you going to do with like a big arm shark processor or something over here? I Don't know, not much.

but yeah, it's looking worthwhile now. of course, this uh, inkjet mechanism here. the Inkjet cartridge just sat in here. That's no good.

Uh, of course. but as a whole assembly might be useful. uh for some people. motor, uh, driven here of course and that can just move this sucker back and forth like that.

So if You' got an application, um, for you know, something that you know you could attach an arm onto here or something and have that go across like that, then you would, uh, keep that in one piece. I Really wouldn't uh, bother personally? I'd rather sort of. You know. get the motors cogs.

There's some springs on the back here. of course you'd add those to your little, uh, spring drawer of uh, you know, random Springs and stuff like that. You know, not much you can do with the rollers I Don't know some people might have a application for that sort of thing. Um, yeah, personally, I wouldn't keep that as a complete mechanism myself unless I had something in mind.

but uh yeah, you certainly scrap the motor. The Springs all the flat Flex cables of course, pretty, uh, useless unless you're You know it's worth keeping a couple of flat Flex cables for something, perhaps. but you know what do you do with the belt in there? For example, couple of cogs I don't know. So here's our swag of I think useful stuff out of this.

We' got ourselves a speaker, got ourselves a flat flx. We might keep that in the part draw. We got three uh, Ferites in there we can unwrap though. Oh, yep, there they are.

That's the only useful thing on that board. Three Ferites got ourselves. uh, three, uh, Motors There's one basic uh DC motor over there, which I haven't uh taken out of the whole rig there. You can keep that and we've got a reduction uh mechanism there.

There we go, got some reduction gears there? Maybe you'd keep that or just scrap the motor out. They look like, are they two identical Motors Are they let's have a look. sp sp 42rd Yes, they look, uh, oh, not quite almost identical. There you go anyway.

Uh, they're useful. We've got ourselves a line interface board here. Not too much on here, but we have ourselves a, um, uh, one of these photo interrupter um, things where you uh, put something in there and it interrupts the uh, there's a lead in one side and a photo dyed in the other and it interrupts. They're very useful.

Worth getting those out. Couple of little uh line isolation uh Transformers in there got ourselves a Reay Have we yeah, got ourselves a Reay you'd Nick that out of there couple of opto couplers and uh, well, that's about it. Out of that, not terribly exciting. wouldn't write home about that, but uh, we got ourselves a power supply and it's got, uh, it's got the AC input directly on it.

It's looks. you know, it probably does the job there. but uh yeah, you might keep that as a whole uh item. We've got ourselves uh 24, Vols and 5 Vols not.

You might use that as an entire uh power supply module in its own right. And then we've got our main board up here. Uh, once again, you can Nick those inductors down there looks like we've got a motor driver down here. You could possibly, like, you know, hack some of that board off.

You could even like a saw right through it or something. and maybe, uh, use the motor driver. uh, chip out of that if you're really, uh, desperate, perhaps. But yeah, not a huge amount of useful stuff on.

uh, logic boards like this. You know, what are you going to do? Suck off the Samsung arm processor I Don't think so. Not really going to happen. but uh, yeah, you would at least keep it once.

As I said, you know, solder in practice or uh, something like that, perhaps? But there you go. That's a reasonably, uh, useful, uh, swag. We've got ourselves a Ferite here for a flat Flex cable. They're really useful.

They're something uh, you don't often get, so you'll definitely, uh, keep that. But yeah, that's not a bad little oh oh oh, hang on I forgot I forgot. Yes, you're thinking, where's the um, where's the line scanner? There it is. there's the line scanner came out of of fax machine obviously um, scans an entire line at a time.

Not sure if you could uh d a image Co never heard of them D 100 I don't know you'd have to Google that see if you can get the data on it. but uh, pretty simplistic interface and you might be able to use that um, uh scanner for something I don't know. The resolution of this didn't look like a you know, top of the line fax machine, so the resolution wouldn't be that that great. But there you go.

Certainly worth. um, scrapping one of these, uh, low-end fax machines I think actually still being corrected on the LCD module from this thing. Um, it looks like it's a standard Hatachi interface one VHX Uh, 1610 Looks like the uh, standard interface at least. So uh yeah, you could definitely use that.

I mean that's a nice little sort of, you know, uh, plastic protective uh case. You could, certainly, um, add something like that as an LCD to a product and you know it's fully protected. Very nice. That's useful.

I'll scr that one too, thank you very much. Oh, and I missed those even on this front panel board. Couple of little photo interruptor sensors there W Worth desoldering. And next up here, we got ourselves a HP uh Photo Smart C42 83 Once again, one of these uh, combined office uh scanner, inkjet, uh printer things.

No, it's not laser. it's U uses Vieira HP inks h whatever. Um, this one does have like a little, uh, color, uh, display on it. something like that.

So you definitely whip uh, that module out of there. but let's crack this one open and see what it has to offer. Once again, it didn't take us uh long to uncover some goodness here. Here's the uh scanner mechanism with the uh, uh, ccfl cold cathode uh tube in there, which I believe it is anyway, which uh, lights this thing up and uh, it looks like that dries itself.

So we got ourselves a motor on the back of there. There we go. Does that have a little driver on there? No, it's just like a little interruptor wheel? Probably. Yeah.

very. You just see it in there little photo interruptor wheel in there and uh, that's how they. That's how they get. uh, the positional.

uh. count on this thing of course got ourselves ton of flat. Flex You know you'd probably keep them, You wouldn't get too many of those, um, generally and you got, you know, very long ones here. you might be able to, uh, custom use those for a, you know, some sort of uh, you know, weird ass product or something like that.

We got ourselves a USB interface board over here. Not much on that. We just got ourselves some uh, ferites and things like that big big ass inductor on there we can salvage. but uh yeah, we've got more stuff happening down here.

There's another motor down in there, so we're getting there. uh, not too bad at all so far. and on the bottom of the top platform. Of course we knew we'd get a nice piece of uh glass out of this.

So yeah, definitely well worth keeping. It looks like we can just, uh, uncp uh that from there board over here where our LCD is. well, um, we, you know we can get the LCD module out of the back of that. We've just got ourselves some uh, flat Flex in there.

but apart from that, there's another uh photo sensor there. but you know it's just got chip on board there. That's no good. So that board, it's not worth salvaging apart from the LCD under there.

And once again, if you had a use for, uh, a mechanism like this for the uh print head, uh, you would certainly keep it. There's the uh, uh, just a basic uh DC motor on the bottom and you can see how they get the feedback on that thing I'd need to get the macro lens out for that one to give you a uh closeup look at that. There you go. You'll probably have to watch this in HD to get that, but you can see that's how they get the feedback in there.

You can see that they've got a tiny little stripe pattern in there of a KN distance. You'd have to know what the Uh distance is of course, but even if you didn't know, you could actually, uh, calibrate the thing based on that number of counts. It'd be a photo sensor in the head down in here that that uh tape runs through that you can get a pulse count out of No Doubt So you know that could be very, very useful. There you go, there's a closeup of that looks like it's got some Gunk on there, but uh, could certainly use that.

I mean it's absolute position relative to the you know, the relative to the mechanical frame over here isn't going to be uh, very good of course, but you could, certainly, uh, use it as a relative uh position. So I'm not sure what the uh distance is in there, but uh, it's You know it's pretty fine. It's probably as fine as you would want for a positional feedback, and there's our photo sensor down in there for that there it is. Just popped it out.

so that one's uh, probably you know. um, it's probably got, you know, a tiny little slid in. It's uh, capable of very good resolution. but I'm not sure if you could to reuse that board.

you know, who knows. I don't know there's an St part I'm not going to Google it uh now, but you know, presumably um, you would have to assume that that, uh would be a bit of a loss cause, uh, trying to get data out of this thing, you'd take it uh, directly from the photo sensor there if you really wanted to. I mean the chip on there is, you know, maybe not even. uh got much.

If anything to do with the positional sensing at all, may just feed it back. I Mean that's obviously in there for the uh print heads there? they all are. You can see the individual wires there going down to the uh, the print head mechanism down. oh, this is a Jew one looks like it has black, and uh, color or something like that and uh yeah.

I don't know. Probably can't reuse that board I just get the sensor and then Turf it and this drive mechanism down in here. That one has also got a nice little uh photo interruptor wheel down in there going down to a photo probably can't see it, but there's a photo sensor board down in there. So whether or not you actually kept you know this whole uh, you know this whole mechanism right across here for uh, something I don't know I doubt it.

Usually you just unless you had a very specific uh application in mind you would generally just Salvage the motor out of that. but yeah, like you know, it's just a shame to sort of, you know, toss out a very nice high resolution photo, interrupt a wheel like that and there it is you can see it I mean I'd need the macro lens again to get a look at the Uh resolution on that wheel there. but that is you know that is going to be quite remarkable and uh I don't know Anyone got any good ideas what you would do with an intact mechanism like that? There you go, between 9 and 10 there anyone want to count those? So there's our little swag out of that. Not very big, but uh, useful nonetheless.

First of all, we got this, uh, lovely bit of glass out of the front so that's pretty darn useful. You definitely, uh, keep that for something. We got a couple of Motors We got a uh card reader here. look look at this.

it's you know it's one of those Allin you know, 5 in one uh card reader things I don't know I'd have to look up the um Smsc uh number on that but basically that's you know all uh, self-contained It looks like it's just uh, you know, serial data out of that. Maybe you could use that as a complete module, apply power and uh, yeah, I don't know. Anyway, um, you could hook that up to your Uino or something. perhaps? no idea, but got a couple of Motors there's that photo sensor complete on a board with its own little uh flat.

Flex We got ourselves another little flat Flex Ferite there. once again, you would keep those. they're quite useful. and there's our um sensor board with, uh, well, there's a third motor in there, of course, and that's got a pretty, uh, simplistic interface there if you wanted to have a play around with that, but that's probably got a uh, a cold cathode lamp in that plus, uh, sensor? Not entirely.

Uh, sure. I haven't taken that apart any further anyway. Um, but that's useful. We've got ourselves.

Here's our module. here we go. There is our lovely I believe it's from I did actually power this thing up um, a couple of months back when I actually got it and uh, and I believe that was a little color. um LCD module.

so well worth scrapping that. and of course, you could, probably, uh, cut the board off or you know, cut it across there or something if you wanted to actually get access to the connector. Because you know, often, there's no point getting these little modules if you don't get the flat Flex connector to go with it. so you'd uh uh Salvage that no doubt another photo sensor there chip on board the rest of it.

Um, well, the LCD I can't remember what the LCD gave out, but uh, very, uh, simple interface. You could possibly reuse that. So there you go. the rest of it.

uh, you wouldn't Would you bother getting the tactile buttons? I doubt it. But anyway, nice little LCD module. Score! I Like it. Uh, once again, the main processor board here.

not of a huge amount of use like you know, surface mount regulator there low Dropout rig. but there's a nice big inductor you that's worth desoldering for sure. But apart from that, you know, like you generally don't Salvage caps for these things unless you're pretty, uh, desperate. But uh yeah, that's not of much use, but not bad worth taking apart.

Next up, the Humble Laser Printer. This is a HP LaserJet 1010 I've got a uh Fair few of these as well. and uh, no doubt. of course you know it's a laser printer, so there's obviously going to be a laser in there if you want to, uh, play around with some laser stuff.

And of course there'll be a whole bunch of motors and rollers and sensors and all sorts of stuff. very similar to the photo copy. uh, tear down if you haven't seen that. By the way, it'll be linked in.

uh, down below here you can see me, uh, taking apart a massive uh, photo copy which was quite an epic. Anyway, let's see what's useful inside this one. and we're into the guts of this thing. Of course, you know, the uh, middle in there is practically empty of course.

So uh, a lot of your uh stuff is all going to on the outside. Here's a here's Well Control Board which was on this side here. Nothing really interesting on there at all. I'm afraid that's not worthwhile.

Look what? I found on the side of the case though, right? this thing here. that's not a micro switch? Look, what's on the back of this? There's a diode in there and there's a resistor. What on? Earth are they doing with that? I Have no idea. That's just.

that's just crazy. Um, anyone. Um, it's almost as if like it's an afterthought or some sort of a yeah, this is some sort of protection resistor and protection di that designed to burn out. and if they burn out, it's got to burn out in its own little thing there.

I I Don't know. Beats the hell out of me. It's not like it's a contact thing. I Mean they're just using this as a contact.

It looks very convoluted to design all that. I Mean it's not like some sort of switch mechanism and it come and makes contact or something like that. And we certainly have ourselves a big nice power supply board here there. It is primary, secondary, all over here.

this would be, uh, driving the heater of course this is I think that's probably one of the main wires going over there for the fuser. Uh, who knows. I'm not going to sort out the architectural details of this thing. useful micro switch up there I Don't mind it.

you could uh, rip the Transformers out out of there. probably as it stands, not maybe a hugely, uh, useful power supply? I'm not sure, but uh yeah, I don't know. You would just, uh, keep the entire board and there's our fuser roller mechanism I mean you know you wouldn't even bother, uh, keeping that at all. Really, there's nothing, uh of huge value in there unless you wanted the uh, heater element uh, out of that thing.

But anyway, here's the main uh board that came out of that. Not bad. uh, 200 Vol uh, secondary on that. So I don't know if you want to, uh, muck around with high voltage stuff like that.

I mean you know once again, it's all integral. You know you've got your I input there and your switch and it's all you know. it's all RAR And to go. So well worth salvaging that and there's not much else uh left in there.

Here's our laser module. Of course. that'll come out as a complete module and that's what scans the laser across the uh drum. There, we've got one big ass motor.

There's a fair bit of mechanical goodness in there, but once again, unless you had a very specific need to hook that up or you wanted to get Innovative then you'd uh I don't know. All we're after is the Uh motor pretty much. And the laser mechanism of course is the Uh. The laser module in there is the big score in this thing.

Um I have opened these laser modules before I may do it. Oh, look at that. Beautiful and there it is pops up. There's the uh, there's the output lens of course because uh, this thing has to scan across the entire page like that and it's got to do it in a linear uh fashion.

Of course it has to be uh, absolutely spot on. So we we've done a uh tear down of one of one of these from a photocopier before and uh, some very nice Precision Uh laser Optics in there this is the uh, well, this is a driver board for the motor. It went off to the stepper motor which we scored by the way. Excellent.

Um, not a problem. let's have a look at that that's a Uh Mitsumi. There we go. 7.5 de per step, steeper motor.

Very useful indeed. and uh, but this sucker looks like we might be able to just uh, pop the lid off that and have a squeeze inside. and Tada there it is. Look at that Beautiful.

I mean the Uh laser module bounces off the Uh rotating Um drum here. that's where that's basically the principle and then it's scans and then the drum based on the timing of course, goes through this complicated uh, two-step lens here and that scans across the page like that. and as I said, it can do it completely. uh, linearly and it looks like it has the Uh driver on there of course.

So uh, you know, should be able to uh, hack and drive this thing fairly easily. I Mean here's the Uh Laser Module over here. so we've got ourselves. looks like the laser module uh, driver.

This isn't going to be a complete tear down, but uh, you know, looks like pretty simplistic interface and then that's our laser module. So if you just wanted the uh, you know, just wanted the laser Diod out of this thing, you could just rip that out and have the driver board uh on its own. but anyway, it's designed to go down through that lens in there and then bounce off the uh I shouldn't H turn it. My hands are all grubby and uh and crap here but around there and uh, that bounces off that of course and then just scans out there.

So the laser comes through here like this. Yeah, I'm not sure why that one's on an angle like that. I mean it's coming out Laser's coming out like that, then it sort of needs to. then that lens is on an angle anyway.

I'm not sure the exact Optics of what's going on here, but it bounces off there and then that just scans around like that and can do the entire page. Brilliant. but that looks very usable and of of course if you did want to uh, more easily reverse engineer this thing then you'd keep all the electronics or you'd uh, just open it up and probe it while the things actually uh working and actually uh, probe the interface here and see what we get but it looks like that's basically just a motor Drive uh down in there for that uh bottom board that we looked at and uh, this is the laser interface over here so we'd have you know the highspeed data coming in here to uh Drive the laser and um, but you know, pretty darn simple by the looks of it. and I'm guessing there that this uh, safety shutter is uh just as the name would uh suggest when you um like if you open the cover on this and the you know to take out the toner while it's actually uh working it, it just bam.

shut that down so the laser doesn't come out. So from all that junk over there from this uh laser printer then this is our Hall down here. and uh, you know it's a Sur Surprisingly little, but of course the jewel in the crown is the laser module. These things are just pornographic.

They really are. They're definitely worth um, saving. And uh yeah, we have like a motor driver board. Whoop-de-doo We have a useless digital board.

Whoop-de-doo have a very nice looking uh beasty steeper motor there that could be very interesting. once more. you've always you always get these photo sensors in these things and we got ourselves a solenoid. There solenoids are always useful.

You would have a drawer in your junk box just for solenoids. Very useful. And of course we scored a high voltage uh, 200 volt DC um, you know High current high power power supply so that in its own right. very useful.

So definitely worth scoring an old laser printer like this. And we scored a whole bunch of screws. you could put those in your you know, your miscellaneous uh, screw box or something like that. and we got a few Springs out of these uh products I probably didn't Salvage every last one out of there.

but yeah, yeah, definitely worth having a little spring drawer just in case. Now of course, the first uh portol of this gear is to, you know, try and reuse them and you know, fix them and reuse them of course. and uh, give them. You know, either donate them to a worthwhile cause or something like that.

but uh, if you can't then well, you know. definitely worth saving them. You know, especially if they're are you know they're sort of not worth, uh, fixing or something like that. And the good thing is, if you want to tear these things down I didn't really need any things serious I just needed a number two Phillips screwdriver which basically did everything a big Flathead just for Levering uh stuff.

pair of pliers usually comes in handy. small um, pair of needle nose for you know, getting out uh Springs and stuff like that and one of them, uh, did actually need a Torx But yeah, if you want to go and uh, rip these things apart um on site, you know, if you're hiding out in the dumpster and you don't want to take it out while you're you know, disassembling one of these things in the dumpster and salvaging all the parts out of it, then yeah, you don't need to take along a big toolkit with you. Generally you know a couple of screwdrivers is uh, going to let you uh Salvage all the stuff you like and a pair of side Cutters as well just for cut, you know, ripping through any uh CA cable harnesses that uh, get in the W way for you know your Speedy exit from the dumpster. so I hope you liked that video.

If you want to discuss it, jump on over to the EV blog forum and if you like tear down Tuesday As always, thumbs up catch you next time I better go clean my hands I have actually cleaned them a bit but yeah, they're still a little bit dirty. See you and back down here in the garbage room AKA Aladdin's cave. We have another three of these multifunction things or uh, office things. this a HP Office Jet L 7580 Um, you know, presumably not working.

they usually got, you know, some sort of little fault with them. Hey, we got another monitor down there. tiny little thing I don't know. I've already got like 18 monitors.

We've got a phaser 3100 Mfp you may uh, remember I've mentioned that one before. that's the one that was dumped on top of the Uh LCD monitor that time. and we've got another. HP Laser Jet ah, something or other.

and once again, these are all you know. the scanner, uh, type. and of course, this has got a sheet feeder on top. It's probably another motor or two in there and uh, stuff like that.

This one's also sheet feeder. so these things are a dime a dozen. They really are. It's crazy.

And for those people who ask, because I get a lot of people asking where is this garbage room and can I go there? Is it publicly accessible? No, it's not. It's a private, uh, garbage room and you do need a key to get in. It's in a corporate uh, the EV blog at corporate Towers here down in the uh basement? sorry, eh. you got to find your own.

but uh yeah. All of these uh, large industrial, uh parks and big, uh, commercial buildings. They'll all have a garbage room like this and well, this one just happens to have a high percentage of these sorts of Office Products Anyway, catch you next time.