Homebrew PCBs

Dave: Just cranked the laserjet up and double checked the menus, I 
didn't get a manual, but a long time ago I purchased the very first 
original laserjet sold to the retail public in Olympia, so I 
fortunately remembered how to manipualte the buttons. Take the unit 
offline and press the menu button til the Printing menu comes up (it 
is the first one I think) in the printing menu press the item button 
til RET comes up if it is not on "DARK" press the "+" key til it 
gets dark, press the item button til it gets to ECONOMODE, if it not 
set to "OFF" press the "+" button til it get to OFF, then press the 
Menu button again til you get the "JOB" menu, then press item till 
you get "RESOLUTION" if it is not "600" press "+" till it gets to 
600, then press the Menu button again til it gets to CONFIG the 
press item till it gets to Density, if it is not 5 press "+" til it 
gets to 5. Then press the Menu button one last time, and finally 
take the unit back online. These are my setting, RET=DARK; 
ECONOMODE=OFF; RESOLUTION=600; DENSITY=5. Hope this is what you 
need, Ray

--- In Homebrew_PCBs@yahoogroups.com, Dave King <KingDWS@...> wrote:
>
> Hi Ray 
> 
> I have a 4 lined up to try. Can you tell me what settings you
> used 300-600 dpi? density/blackness setting of toner etc?
> 
> I need to make some 3/4 inch square pcb's and I was quoted
> over $200 to make 10 plus 30 days delivery. So a pack of paper
> and a hour or two of my time is more than paid for if I can 
> get it to work.
> 
> Dave
> 
>  
> > Hi All: Just picked up a used Laserjet 4 for use in TT. Testing 
and 
> > evaluating produced some tips I share. To remove TT from a 
spoiled 
> > board we all know that acetone makes a mess by diluting the old 
toner 
> > and staining the board requiring a lot of scrubing to restore a 
bright 
> > copper surface. I found that gasoline and a dead toothbrush 
works much 
> > better, the old toner is not diluted but dislodged from the 
board and 
> > with a little soap and water you are back to a clean board. 
> > 
> > The laserjet came with a lexmark toner cartridge that looks like 
it 
> > has never been refiled and I completed about 30 sq.in. S/S pcb 
with 
> > maybe 100 linier inches of .15 traces and not a single pit or 
pin 
> > hole. Considering my past experiance with pin holes in TT I 
speculate 
> > that the toner is the culprit, and the toner in the lexmark 
cartridge 
> > for an unknown reason is not as apt to produce the pin holes.
> > 
> > Removing Epson glossy paper from the PCB is easy with denatured 
> > alcohol but it leaves a little residue at the edges of the 
traces and 
> > in the pad center holes. This residue in easily removed by 
lightly 
> > scrubbing with a dead toothbrush and denatured alcohol.
> > 
> > 
> > 
> > 
> > 
> > 
> > Be sure to visit the group home and check for new Links, Files, 
> > and Photos:
> > http://groups.yahoo.com/group/Homebrew_PCBs
> > 
> > If Files or Photos are running short of space, post them here:
> > http://groups.yahoo.com/group/Homebrew_PCBs_Archives/ 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> >
>