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Chapter 3 / Making the Printed Circuit Board
In order to set th e toner, you must rin se or immerse the sandw ich
in cold water for a couple of minutes (see Figure 3.16).
Figure 3.16
Cold rinse.
Soak everything in wa rm water for five or ten minutes. After a
good soaking, peel the paper from both sides of th e board (see
Figures 3.1 7 and 3.18).
If the residual paper doesn't rub off easil y w ith a little thumb pres-
sure, then resoak th e board to loo sen it up (see Figure 3. I 9).
After rubbing off the residual paper, thoroughly check the toner for
missing sections. If you find any, touch up the area s w ith a per-
manent marker (see Fig ures 3.20 and 3.21).
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