Thanks for the info, everyone! This is a learning/hobby project for
me that will hopefully result in a capable laminator. I considered
buying a laminator, but decided I might have more entertainment
building one.
I will use 110V on the fuser, ditch the microcontroller (at least for
now -- I may add one in later for temperature readout only :), and go
with a hand crank. I do have a stepper and driver with the L297/L298
combo, and will add it in after I get the manual version working.
Thanks again!
Billy Byler
PS - Esteban, there is no need to apologize for your English. It is
very understandable. It is MUCH better than my Spanish :)
--- In
Homebrew_PCBs@yahoogroups.com, Esteban Arias <earias@v...>
wrote:
> I have the same configuration with a HP 4L fuser and bipolar
stepper motor.
>
> I supply 220v to the fuser. We have 220v in my country. In the
manual
> service of the printer talk of two type of fuser for 110v and 220v.
>
> For driver the fuser I used the same pieces of the board of the
printer:
> triac, optocoupler, coil, transistor and resistor. Stefan Trethan
send to
> my the circuit for driver the fuser and this use the same
thermistor inside
> the unit.
>
> I buid a circuit for move the bipolar stepper motor with a PIC and
a L298.
>
> Greetings from Chile
> (sorry by my english)
>
> Esteban Arias
> earias@v...