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Subject: Re: [Homebrew_PCBs] DLP e260d uneven toner transfer

From: Mark <mlerman@...>
Date: 2015-03-04

I agree with your logic, but am hard pressed to see the cause of the problem. Have you tried printing something else? Have you tried a different piece of copperclad? Try grounding both the leading and trailing edge of the pcb to the carrier, though I've never seen that make a difference. What happens if you tape a piece of paper to the top of the pcb? Just some random thoughts.


-----Original Message-----
>From: "Matthew O'Gorman mog@... [Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com>
>Sent: Mar 3, 2015 4:55 PM
>To: "Mark mlerman@... [Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com>, Homebrew_PCBs@yahoogroups.com
>Subject: Re: [Homebrew_PCBs] DLP e260d uneven toner transfer
>
>"Mark mlerman@... [Homebrew_PCBs]"
><Homebrew_PCBs@yahoogroups.com> writes:
>
>> Did you check to be sure the carrier is grounded completely through the printing process? If the carrier is too short, it might be grounded when the leading portion of the pcb is printed, but not the bottom portion of the pcb. That is why I went from a 12 inch carrier to a 14 inch one.
>
>
>Thank you for the fast reply. Just now I tried clipping an aligator
>clip on the back of the carrier and printing it again. I ended up with
>the same faded result. I am using a 14 inch carrier like you described
>in the guide. I dont understand how the open source logo would come out
>so black as in my first picture and so light in the second if it was a
>problem in the length of the carrier. Anything else I should try?
>
>
>--
>Matthew O'Gorman
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