Photo to etch

Preparation in photoshop

Make the image Black & White

Choose an adjustment layer <Black & White> in the bottom of the layers panel.
Here you can adjust the black & white contrast to your liking.

Make negative

Choose an adjustment layer <curves> in the bottom of the layers panel. Bring the right top of the curve down and right side of the curve 4/5 up.

Convert to greyscale

Choose in menu: Image>>Mode>>Greyscale
Flatten image <OK>
Discard color information? <Discard>

Image size

Make the size of your copper plate)
Resolution 150 PPI 
resample: <automatic> 

Convert to bitmap

output <300 PPI> Method <Diffusion Dither> Inverse image (negative) Flip canvas Horizontal 

Save as tiff



Raster link

Make special layer

primer 100% valit pixel  

Rip and Print

primer <start>

On the mimaki

clean copper plate

with alcohol place on the right corner of the table

After printing

Cover the back of the plate

with tape

Put the copper plate in the etching liquid

for ±30 minutes