Re: Reverse-engineering CD printing on the Epson R300

On Tuesday 20 July 2004 20:38, Michael Sweet wrote:
> James Cort wrote:
> > ...
> > The alignment of the CD doesn't seem to affect the SN command, neither
> > does whether or not it is an 8cm CD or setting it to photo quality.
> >
> > Either I've misunderstood something or my guess is all the SN command
> > does in this context is shunt the printer into "Print CD" mode and
> > everything after that is essentially a normal print job.
> Didn't have a chance to jump in earlier, however in tests I've done
> using the CUPS DDK driver the R300 (which is used as an example in
> the manual) only needs to be told to do manual feed to print on a
> CD.  I've never had to use the undocumented SN commands with the
> R300...

I can confirm that this does indeed appear to be true. The following test was 
made:

1. Drop the CD loader on the printer & load a CD as per instructions.
2. Create a suitable CD template on A4 paper in OpenOffice.
3. Export this to PDF.
4. Copy to Windows system.
5. Open in Acrobat Reader.
6. Print to Epson R300 using "Manual Feed", paper type set to A4.  NOTE: NOT 
CD!
7. Lo and behold, the printer loads the CD perfectly & prints onto it.  
Getting the exact location for the template is going to require a bit more 
work, but the principle appears sound.

James.

-- 
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