Homebrew PCBs

I used to have an old laser jet 4 that I used to print and transfer with but unfortunately after several moves it is doa.  My wife bought me a new Brother MFC-7340 if I am recalling the model number right.  Would this work to thermal transfer with like the laser jet or do I need to find another laser jet??  Sorry if I didn't search very well I apologize now.  Thanks for the help tnmedic

How did a laserjet 4 manage to die - those things are like tanks!

Some people say the Brother printers don't work because the toner has a
higher melting temperature, some say you can soften the toner by leaving it
in acetone fumes after you print it, then transfer it, and some say it
works just fine. Probably depends on the type of paper you're using, and
the temperature of your laminator.

Andrew

On Sun, May 13, 2012 at 8:04 PM, tn_medic24100 <tn_medic24100@...>wrote:

> **
>
>
> I used to have an old laser jet 4 that I used to print and transfer with
> but unfortunately after several moves it is doa. My wife bought me a new
> Brother MFC-7340 if I am recalling the model number right. Would this work
> to thermal transfer with like the laser jet or do I need to find another
> laser jet?? Sorry if I didn't search very well I apologize now. Thanks for
> the help tnmedic
>
>  
>


[Non-text portions of this message have been removed]

Dude, seriously... Money spent on repairing that LJ 4 will be better spent than your time trying to mess with that Brother. Yeah, it may be a bit faster, but the LJ4 will last another 20 years and just work. 

At the very least, don't trash it... put it up on Freecycle or donate it to someone. 

--
James.

--- In Homebrew_PCBs@yahoogroups.com, "tn_medic24100" <tn_medic24100@...> wrote:

>
> I used to have an old laser jet 4 that I used to print and transfer with but unfortunately after several moves it is doa.  My wife bought me a new Brother MFC-7340 if I am recalling the model number right.  Would this work to thermal transfer with like the laser jet or do I need to find another laser jet??  Sorry if I didn't search very well I apologize now.  Thanks for the help tnmedic
>

I would agree with that!

--- In Homebrew_PCBs@yahoogroups.com, "James Newton" <jamesmichaelnewton@...> wrote:

>
> Dude, seriously... Money spent on repairing that LJ 4 will be better spent than your time trying to mess with that Brother. Yeah, it may be a bit faster, but the LJ4 will last another 20 years and just work. 
> 
> At the very least, don't trash it... put it up on Freecycle or donate it to someone. 
> 
> --
> James.
> 
> --- In Homebrew_PCBs@yahoogroups.com, "tn_medic24100" <tn_medic24100@> wrote:
> >
> > I used to have an old laser jet 4 that I used to print and transfer with but unfortunately after several moves it is doa.  My wife bought me a new Brother MFC-7340 if I am recalling the model number right.  Would this work to thermal transfer with like the laser jet or do I need to find another laser jet??  Sorry if I didn't search very well I apologize now.  Thanks for the help tnmedic
> >
>

I would agree. Nothing like the old HP printers.

 I have an old HP LJ3 (which I think is older than the LJ4 by a bit). If the
printer is throwing an error code then Google it. Seriously - I did that for
the error I was getting and found full instructions to repair the circuit
board. In the end though, if you need parts you may be out of luck unless
someone has new old stock around. My LJ3 is circa 1985. Still running
(fingers crossed).

 

Sage

 

 



[Non-text portions of this message have been removed]

Hi guys
a possible solution may be closer than you think
Yahoo groups have groups for recycling going under various guises of Recycle they do seem quite widespread there might be one close by 
also try freecycle.org both site have rules of no selling and I have had computers, video cards, tropical fish and even my trusty kyocera laser printer
Dave

--- In Homebrew_PCBs@yahoogroups.com, "Dave Sage" <davesage12@...> wrote:

>
> I would agree. Nothing like the old HP printers.
> 
>  I have an old HP LJ3 (which I think is older than the LJ4 by a bit). If the
> printer is throwing an error code then Google it. Seriously - I did that for
> the error I was getting and found full instructions to repair the circuit
> board. In the end though, if you need parts you may be out of luck unless
> someone has new old stock around. My LJ3 is circa 1985. Still running
> (fingers crossed).
> 
>  
> 
> Sage
> 
>  
> 
>  
> 
> 
> 
> [Non-text portions of this message have been removed]
>

--- In Homebrew_PCBs@yahoogroups.com, "tn_medic24100" <tn_medic24100@...> wrote:
>
> I used to have an old laser jet 4 that I used to print and transfer with but unfortunately after several moves it is doa.  My wife bought me a new Brother MFC-7340 if I am recalling the model number right.  Would this work to thermal transfer with like the laser jet or do I need to find another laser jet??  Sorry if I didn't search very well I apologize now.  Thanks for the help tnmedic
>


Have you opened it up to have a look? Surely if you're etching PCBs you possess a multimeter, soldering iron, and some basic electronics knowledge? 

I fixed a number of different HP Laserjet printers back in the day. It's been too long to remember the details of specific faults, but it seems like bad electrolytic capacitors and cracked solder joints in the power supply were fairly common. Always liked those units, they were good printers, real workhorses that were worth fixing.