Hi by a marginally popular request on Twitter. Um, we're going to take apart this dumpster Hp Officejet Pro 8710 and we're going to see what parts we can salvage from this. I've done a video before and I'll link it in up here and down below if you haven't seen it. where I do this to what laser printers and a whole bunch of other Uh printers that I've done before.

And of course, these types of inkjets along with laser printers are one of the most tossed out items in the dumpster room by far. Well, not the fact that I've gotten dozens and dozens of computers. Actually, Monitors might be right up there with Uh printers in terms of uh, dumpster scores. But anyway, yeah, mostly all the printers that I actually use in the lab here, including on daily basis, they all came from the dumpster.

Um, including like, full-on A3 color laser printers. I'll link up here and down below if you haven't seen it, a huge big plotting machine which I don't have anymore. I actually sold that, but a massive Hp plotter. It is an inkjet and the first thing I look for is, does it come with the ink and the answer is no.

Obviously. Um, so I don't know if I just why they tossed these out. Whether or not it just ran out of ink or whether or not it's um, you know, it's gone dodgy or something. Who knows.

We'll power it up and have a squeeze. Anyway, it's got the scanner, it's got the sheet feeder, It's got front Usb by the looks of it. It's got a uh A yet tray I haven't actually seen in there. There's no paper in there, but these things are built down on price.

They're making money on the ink cartridges, the consumables. Well, that's not going to that whole wide debate. But anyway, um, yeah, I'll power it up. and then we'll take it apart and see what we can salvage out of these.

Unfortunately, I'm pretty confident that these things are built down to an absolute bare minimum, so it's probably just mostly plastic and a little bit of metal. And we probably won't salvage nearly as much of this, uh, as you would out of like a large photocopier. or, uh, like a really high-end laser printer. Like a big, you know, proper Hp industrial.

Um, you know, type one And so yeah. I don't expect much from this, but it'll be interesting to see what we can score from. You know, one of these like consumery all-in-one jobbies. There's all the info for those playing along at home.

I think it's like 2019 vintage or something like that. It's not hugely old. All right. Will it power up? Let's have a look.

Oh no, hey, it's actually I. This is unless there's another physical switch on it. Um, that's pretty rare. Most of the stuff I find in the dumpster that powers up, especially.

these are printers. There's always like, you know, the the pruning up light might be starting to go there. I think the suckers just died. Wow, that's quite rare.

Of course there's absolutely nothing of value in the trays. There's no sensors, there's no anything, just um, springs and and plastic. there. Really, the only thing I value I expect to find in here is power supplies.

You might get a couple of motors and and things like that out of a bit. Generally like. Nothing like you'd score from a good uh, laser, uh, printer or a copy or something like that. They've just got like a ton of mechanical uh stuff.

this will have. Absolutely bare minimum mechanical stuff I'm sure. Of course it's always good to keep up main switching power supplies as we'll have a look at it's probably got one in there worth keeping. There's lots of useful parts on those.

I've got a tub just dedicated to uh, you know, old um, switch mode supplies and stuff and they've come in pretty handy. And the good thing about inkjets is that well, um, yeah, you're not gonna get like any toner in them. which otherwise I would have to do this on a big uh, drop sheet as I've done for previous videos. But you know, no, you're not going to get uh, any of your toner dust in this.

The good thing about this is that we don't uh, care about uh, putting it back together so we can just rip it apart. We can go medieval on its arse. Um, sensor, There's got to be some sort of sensor in there. We've got ourselves an infrared photo detector on a convenient little board like that, so that's nice.

You know you might be able to use that reuse that in some project, so you'd keep that board on its own. Well, so far, they do like their T10 talks. There's nothing else. Okay, our side panel just, uh, fell off.

and there's our main board. Um, that's that's interesting. that they got a plastic. What's that plastic doing over that board there? But uh.

Interestingly so. yeah, that's all the main processor. I think that's probably the entirety of the electronics in here apart from the mains. which is going to be.

it looks like down in here looks like it could be enclosed in this, uh, plastic. Oh, I know. why that plastic there? This is a modem interface. This is a line interface.

Okay, yeah, there we go. Just got some line interface. You can see it's isolated there. No workers.

Good old school. Um. telephones. Does anyone use a telephone anymore? Jeez.

Must have a facts. There's all our wiring up in there. We'll just snippety-doo-dah that. Yeah, it's Gonski, so it's all.

Just lift off now. Hopefully. Wait there we go. Gotcha.

Got a bit of effort there to route the cable? Look at that, that's neat and a ferrite on there. Someone's thinking, only if you're really desperate would you keep like wiring harnesses like that. Although you could say, um, it's useful to have like, a range of uh, these headers. uh, for example, um, that's not point.

uh, one inch so that would be a smaller uh pitch. Might be handy to keep that because you might need to. I don't know. Plug that into some board you're reverse engineering or something.

maybe? Well, that didn't come out nicely. But care Factor Zero. Just small system engineering things like here. Look, you see this little divot here.

You know, whoever designed that 3d body? Okay, had to be talking to the Pcb designer. They had to have the Pcb model to know that screws in there. So when you put the screwdriver in there you can. You've got room for the thickness of the screwdriver.

But you know that's pretty easy these days with your uh, you know, your integration of your 3d Pcb models and all that sort of, uh, jazz. But you know. But back in the day the uh case designer would have to walk around to the cubicle of the uh Pcb designer and go, hey, what's doing all right, Is bad boys going to come out? Yep, Yep. look at that.

There you go. The connectors still in there. Ah, and we're in Lake Flynn. They didn't solder the battery in, it's in a socket.

Look at that. None of that connector rubbish. For the uh Wi-fi board there, they've soldered that in and that is some Hp and St branded jobby? I don't know. Now, generally there's not much to, uh, salvage from modern boards like this, but these big ass through-hole inductors here.

It would certainly salvage those. You put those in your kit. they're really handy. Um, like, because you don't don't They're easy to get out, you don't damage them, and uh, they're just very useful.

Unless you were desperate like you wouldn't. Uh, keep this board like you wouldn't keep this like you would for like power supply boards for like, salvaging caps and uh, stuff like that. It's just yeah. I'd maybe nick the inductors.

Um, of course, there's a very nice, uh, relay down here. Is that that would be a name brander? Yeah, that's a Japanese relay. No worries, you might salvage those. You also might salvage, uh, the high voltage caps here as well.

The uh. suppression caps. Uh, there's an opto coupler in there if you're into your surface mount opto couplers, but you're getting pretty desperate now. I think if you really want to like, you know, start salvaging surface mount parts like that, but you never know.

Like, generally, this board is too big and take up too much space in your miscellaneous component draw. Uh, really, to be of any, uh, major value. Um, in the future. So yeah, I I wouldn't keep something like this.

I'd probably just salvage the inductors and be done with it. Of course, through-hole crystals always handy. And with Wi-fi modules being so ubiquitous and cheap these days, like, you wouldn't want to try, bother trying to like, keep or salvage that I don't think. Yeah, Well, it turns out this Lcd just kind of like snaps off and it's got the ribbon in there.

So ah, look at that. They've got this. uh yeah, this is like a tilting mechanism now. Um, Lcds are a good thing.

uh to keep because you can often get uh, data on them and uh, you know they'll just be like an off-the-shelf uh, Jobby pretty much and we'll reuse it so we'll have a look at that shortly. But that gives me access to a few more screws. The whole scammer system. Yep, that that just lifts off.

So that's our Ccd array and stuff. Like people actually? uh, you can't actually reuse um, these scanner bases for lots of, like, interesting, experimental, uh projects and stuff. So if you're into what that sort of thing like, you could actually reuse, you could repurpose that, uh, for something anyway. But it doesn't look like this one has a secondary reading array for the uh, paper feed mechanism.

Over here. it's just the same array. I think it's just going to move it back into uh, this portion of this system. So yeah, like this is like bare bones stuff.

It's not as good as some of the uh, you know, the high-end photocopier systems. And this scanner tray is a classic example of uh, cost reduction and minimized, uh, component count. As I mentioned, like, this is just one big uh, plastic molding on the top, which then, like has just a glass sheet in it. There's another glass bit over here and that's it, right? So that's just one mold in there.

and then you've got another entire plastic piece like this which has the integral, uh, like cog in it that's actually molded into it. Normally you'd have this, like as a belt. uh, you know you'd have like pulleys like a belt nice big, like a rubber belt in there, uh to pull the things along and a nice big sturdy metal tray like in the high end, uh, you know, photocopier scanner, uh type things you would office machines and stuff you would yeah, have a nice big metal so it's all stable. and yeah.

rubber pulleys and belts and cogs and everything. And this thing. Nope. There's just two pieces of molded plastic like that.

another whole plastic, um, molding for this. Oh sorry, no for the extra one for the top half here. But yeah. four looks like four plastic moldings for that whole thing.

He's got the one Dc motor in here, just driving that, um, worm screw and then and then that just drives the it just goes into the cog inside here and just dries itself along. And bob's your uncle. I mean, that is like Bare Minimum Engineering. Um, wow, yeah, but that's it's.

not really. Wow. It's not surprising I expected this. Sort of like bear cost engineering inside something consumer like this.

That, as I said, like they're selling a ridiculously low price point. I'm not sure what the retail of this is. You know, a couple hundred bucks or something. They make the money on the ink so you might salvage, uh, the motor out of that.

Um, you know it might come in useful. Uh, for something. you have a motor. uh, you know, like a motor box? Uh, something like that.

But uh yeah. The uh, linear, um, scanning element like this is just like that'd be like there'd be aluminum and be lead illumination in there, right? Plus, um, a linear scanning element to get it all out. so I'll see if we can get a further heat staked the board in. I think.

actually I might save this for a second channel video because this might be interesting. Anyway, that's all there is to it. Uh, anyway, this is interesting. So yeah, I'm going to leave that for second channel.

so subscribe to Eeveeblog2. I'll put that under the tagano. I won't do it now for this video. Hmm, well.

the motor has a positional wheel on it and that's all she wrote. Ah, we're almost getting down into the don't care category, now, aren't we? I mean, um, yeah, I can see the tubing sucks out the excess or whatever. Um, but I oh geez, you know, got the carriage? There you go, that moves along. I don't know if you want the linear rod or whatever.

they might be useful if you're into your mechanical stuff. But apart from that, I mean there's going to be nothing on the head. There's your print head for all your printed aficionados. There you go, you got your colors.

Um, it's kind of. It's kind of funky. actually. I like it.

Geez, they've really come a long way though. I mean, this is just insane quality. I can remember my old uh, A3 Canon, uh, bubble Jet. I think it was called a bubble jet back then, wasn't it? Um, yeah, A3 Jobbie and it was like, I don't know.

You could see them, You could see the dots, you can count them. and that's the interface where the cartridge would go in there. That's where all the money's made with these contacts here, that, uh, detect the ink cartridge and make sure it's genuine. and yeah, like stop working and then they only fill them up halfway and then you know all the tricks of the trade.

but uh, not sure what they do. whatever. Anyway, yeah, the whole industries are wrought of course. Um, it's where all the money's made and yeah, like, don't get me started, like they let you buy the printer and it comes with like only like not a 10 or 20 of the ink that you'd get for like a full cartridge or something.

So you have to buy new cartridges as quick as possible. And then they got the digital rights management and everything else. and uh, yeah, slowly getting into it. But um, this is a lot of effort for I think what's going to be very minimal reward? Yeah, it's all just bloody, uh, plastic and um, t10 torx screws.

Sneaking into some metal work now though, but yeah, there's just there's just nothing doing here. I'm uh, I can be pretty confident that, uh, you know, like apart from this motor here? um, there's another motor up under there. Apart from those two, I don't think there's going to be much more to salvage here apart from the uh power supply. Might be a few other little um, photo sensors again, but the amount of plastic molding in these though is very impressive.

There you go. I mean, you know, it's just absolutely nutso I still am surprised at the number of screws, but they would have, uh, certainly optimized them out like you know, like they've got these, uh, you know, teflony, uh, type delrin, um, slider things for the drawers and stuff like that. but apart from that, it's just like huge Abs moldings and uh, they do try and uh, especially for all the outside coverings and things like that. they've just got clips everywhere.

Got ourselves another photo sensor there. as I said, you'd keep the boards and uh, this is interesting. This is just a little grounding. uh thing was just some little um, hairs on it just to, uh, like a static discharge, um kind of thing as what would be happening there.

That's for all you plastics aficionados. now. just relax and tell me the first thing you visualize. Oh no, it's a T8 instead of a T10.

Ah, somebody at Hp was pissed when they, uh, I've got it. I really have to use a T8 instead of a T10. Are you serious? Oh, then they've really rubbed it in by using like a T6 or a C5 or something. they're trolling.

Yeah, I don't know if that one's uh, useful for anything really? I don't know. Um, there it is. like not as good as like the old school, um, like copiers and uh, things like that you would get like an old-fashioned like dot matrix Hitachi interface dot matrix out of it or a, you know, a four line by 20 character display and you could reuse them and they're just got. you know, a, uh, a dip pin header kind of thing.

and yeah, nice newfangled things in there. Don't even think that's useful, is it? Ah, I just realized that that's a crap ton of leads around there for by presumably a backlight. Um, what the that looks like a pretty grunty motor. Not too shabby, And there's those rubber belts I was, uh, telling you about for the uh scanner.

Uh, but they don't have them in the scanner, they have them down drives the printhead here. That's interesting how they do the paper things. It's just a little metal cog on a little springy spring spring like that. That's kind of neat that one's that one's just fixed into plastic, but they're springy and looks like some more staticky or anti-staticky This is the head drive motor.

not going to be. not sure if I'm getting that name at the right angle there. but anyway, it's uh yeah. made in Vietnam, I think.

Anyway, that is the head drive motor and that I believe is the uh paper advance motor. so they're not too shabby like you'd keep those. And if you want to know how the head position is done, then it's with this tape here and somebody snuck a bit of fun into their design. Uh, thumbs up.

There you go. That's just an optical grading system so that, uh, they can accurately position the printhead so they know how far it's moved. There's a linear rod for you aficionados. Um, there.

it was actually secure. It wasn't secured at the ends, it was actually uh, secured through. um, two holes actually. Uh, just bored into the thing.

So that's a bit disappointing. And well, there's your splash zone. Um, no, oh, that's baked. Oh, it's baked on there.

I think. Wow. Anyway, has been a little bit of ink spillage, but uh, not too much. I mean the the waste tank is over in this corner over here.

and for this lever on the print head that locks it in place, this seems to be a different type than the regular abs plastic. I guess they need that for the, uh, rigidity? Um, or you know, something? I don't know. Mechanical engineers let us know. But anyway, look at all those pogo pins and there's your interface board for your printhead.

Um, absolutely nothing of value there whatsoever. That's how they do. The pogo is there's no springs in there. it's just uh, formed metal.

So here's all the waste and uh, cleaning parts of it. And uh, yeah, that's the uh, reservoir, or the, you know, the over spill tank or whatever it is at which that would probably have a sensor in it because usually these things have a sensor to tell you they're full. Um, so yeah. anyway, you don't really want to be playing around with this.

It's going to get messy. I'm just absolutely stunned at the number of plastic bits that slide up and clip in and insert over and under, and hidden screws and everything else. It's just. it's insane.

Oh wow. We finally got a couple of extra tidbits. Um, there's the soft power button. That's actually the power button board that's got some circuitry on there, so like it could be as simple as like that.

Like the power problem. But this is not a repair truck. I can't repair it now can we? Um, and there's a little uh speaker down there and there's a little another little uh photo sensor up the top and um, yeah, it's about all she wrote. I mean, you know if you want to collect springs now here's where it gets messy.

This is all the inky stuff. Pop that there ta-da we're in. Oh look, a sludge. It's it's a river of slime.

Look at this. Um wow. I had no idea it'd be that sludgy. That's incredible.

Um, I ugh. So there's the cleaning systems for these things and they are pretty awful. and what does it like? Go on to there and then it slides and looks like it just drips down into onto that sponge. That's just like, is that just is it designed to do that or is? no.

Obviously. Uh, they went to a fair bit of effort and um, yeah, they've got rollers in there and stuff and it just like but all the sludge. Look at all the sludge in there and that's just over that huge spongy thing. Unbelievable.

Seriously. Inkjets? Um, come on. I like I can see it. Come on, you can't be serious Man, you cannot be serious.

I thought most of the uh, residual sludge was, um, contained in the uh, waste bin. Oh, there's actually oh no, that's it. No, that's a motor. Okay, I thought that was a, uh, like the waist compartment thing, but nope.

the waist compartment is like just a giant sponge with no sensor whatsoever. So yeah, hmm. Now they've gone to the effort to put some rubber baby buggy bumpers on there to reduce the uh, vibration to the chassis. anyway.

Um, like you would keep that either as a motor on its own. Uh, but we've already got a few motors out of this thing. But um, yeah. keep that as a little pumpy thing.

that's the paper advance mechanism and got some cogs down in there. There is actually a board down in there. I think it's just yeah. It's just yet another optical sensor.

So what? we've got Like four of those out of this thing. Um, once you get a couple out, you know it's it's diminishing returns. I'm actually quite amazed at the complexity of these moldings. Look at this.

Just imagine the system design that goes into that, to get all the hooks and figure it all out and everything else. and then all the mounting points for all the other things. and then this, probably, I don't know. there's a cog that goes down in there.

Um, for a cut out and it's just. it's pretty incredible. And we finally got down to the power supply only to find that, um, yep. it's basically.

well. it is a Hp uh, branded joby of course. But they don't do it, they just farm it out to somebody. But yeah, it's like a regular power brick, except they got a cut out there for one.

like I think that's the Mo No or for something, some sort of coggy thing. So it's just like a custom plastic enclosure. And and add insult to injury, we have to do extra effort to get it apart. It's a, uh, ultrasonically welded jobby.

but anyway, um, like you wouldn't have to get it, you would just take that and what do we get out of it Anyway, that's a bit different. Plus 32 volts and plus 12 volts at Uh 1.1 amps. so that's not too shabby. Uh yeah.

like you would keep that. That was just like a Um Unu. They even give you the pin out on there. Nice.

What's the deal here? Plus 32 volts and plus 12 volts? Ah, that looks like a moon that looks like like sleep mode or something. so you know you would test that, play around with it. I think if you, uh yeah, if you uh, ground the um, the sleep pin or something, it might switch between the 12 volts and 32 volts switchable output so that might be handy for some project or something. Yeah, you definitely keep that.

That's a score. There's the paper advance motor down in there. uses a pulley so we can score another motor. I think that's four motors out of this whole thing.

And there's the encoder disc so the i don't know you can count can you count the teeth on there? can count. the resolution on that? um, but yeah. another photo sensor and that just uh counts the uh, yeah, well knows how far that the uh papers moved and there's absolutely nothing left. That is just yet another big plastic shell like that.

Although, don't turn it upside down because, uh, all the well. I think most of that ink's like dried up in there. perhaps. But yeah, that's it's.

just one big enormous plastic assembly. Like couple of extra ones on here for like the paper, feed path, and stuff. But man, there's nothing left. We're done.

That's it. That's all we got that's even remotely useful out of this huge consumer inkjet printer. Like I'd even say, like the Lcd is probably a bit useless. That was like almost heat staked in there.

That was really hard to get out. Um, you know you, the linear sensor? you're probably not going to reuse, but you know you've got five motors out of this thing. You've got a couple of um, optical, uh sensors, um, and you got maybe a couple of inductors off the main board and a power supply. and I don't know.

you might be able to reuse the backlight for something I wouldn't bother um, like, and a linear rod like what? And this is the carnage of what's left. So unless you're like a plastic, uh, recycler or something, um, like taking apart one of these things is just absolutely pointless. There's just, ah, there's so much just pla, mostly plastic and like a couple of metal brackets. And that's all she wrote for these, uh, consumer printers.

They're just really, uh, not worth your time. Sadly, even if you like, like salvaging parts, there's just, it's hardly anything in them. It's unbelievable. So there you go.

I salvaged it so that you almost certainly don't have to waste your time doing this if you see these in the dumpster. er, I think, just give them a wide berth. But as I've shown in previous videos like photocopiers and those really like rugged, high-end um, office, uh, copiers and stuff like that, Yeah, they've got a lot of extra motors and uh, parts and sensors and all sorts of, uh, stuff in them. So they're You know, they're often worth it.

and they'll have like, you know, high voltage, um, stuff for the Corona, wires and stuff like that, you know? So they've got a lot more interesting parts that you can salvage out of them. but this, ah, that, that's got to get a thumbs down. Anyway, if you like the video, give it a thumbs up because you can give it a thumbs down. You can't count the bloody thing.

Catch you next time you.