Homebrew PCBs

Hello Volkan,

Since the y-axis control has to be changed anyway, I thought about the 
transport mechanism and the problem of the abbrasive paper feed roller 
which will wear out and cause an inaccurate y-position. A solution 
might be a table-like structure of papersize width and length, or a 
bit larger. The y-axis table position is controled by the paper feed 
roller (I don't know how yet) and it should start at a reference 
position (begin of paper) after a manual reset and stop at the end 
after printing a single page.
Like Stephan said, a basic solution may be already present in the R/RX 
series printers.

With kind regards,

Gerard

--- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <vsahin@...> wrote:
>
> Hi  Gerard,  It is difficult to say. The problem with CX4200,38xx, 
4800 is their scanner. I need a free access to printing area but these 
printers have a scanner and if you remove the connections you will get 
so many blinking leds, errors. On the other hand, their mechanics are 
much more robust than C68 and C88, they have also 90 nozzles for each 
color and both x-y axis are feedback controlled which means there is 
no missing step problem as in step motor controlled ones. 
>  Another problem with Epson printers they are using abrasive roller 
for paper feeding/positioning  and when you use PCB you slowly started 
to damage the abrasive coating of roller. This causes y-axis starting 
position errors because of fast feeding during start phase of 
printing. Now, I have faced with this problem and decided to disable 
y-axis motor during paper intake/feeding phase. I think this will 
solve the problem. Any ideas?
>  So, what is the answer? I think, since I have so much experience 
and understand the operation of CX4200 and CX4800, I will choose 
CX4200 again.
>      Cheers,
> Volkan
> 
> 
>  Which printer do you regard most suitable for this task? CX4200 or 
>  would you choose another one based on the experience you have now.
>  
>  With kind regards,
>  
>  Gerard Janssen
>  
> 
> 
> [Non-text portions of this message have been removed]
>