I'm a C++ kinda guy who's relatively new to programming, but I'd like to offer my assistance to this project if it can be used in any way.

I have successfully installed my CP1215 under Ubuntu Linux using the provided instructions - however, I do have a color problem (shadowing) mentioned several times related to the PC version. The only way to perform calibration appears to be using a PC, however.

Are calibration settings stored on the printer itself, or on the PC as settings?

Is there a way to initiate calibration under linux with foo2hp?

What can I do to help?

Read "CUSTOM ICC/ICM COLOR PRINTER PROFILE" in the INSTALL file.

Rick - Will this procedure correct color levels AND positioning?

Correct color levels only.

Rick-

What can I do to help correct the alignment? Right now my best bet seems to be a virtual windows install in virtualbox and installing the windows USB printer drivers. I'm sure you feel the same way I do about this.

I'm unfamiliar with the protocols - am I correct in assuming that each color component is sent as a separate postscript (or other format) feed to the printer, which then compiles them on one page?

Read "CUSTOM ICC/ICM COLOR PRINTER PROFILE" in the INSTALL file.

Rick, I've read the section twice now - it only mentions ICC/ICM profiles. You have told me in this thread that an ICC/ICM profile will NOT correct the positioning problem.

Just to be clear, the CYAN and MAGENTA levels are not only perfect - they line up in the physical (x,y) domain. Yellow's level appears to be on, however it is shifted in the -y direction by about 1/4 inch. In addition, the printer is printing beyond the margins of the page (ink 100% to edge)

Printing from a windows device does not yield this problem.

I am not perfect, if I have missed the correct portion of the INSTALL file where instructions on correcting this are listed I apologize - Can you please COPY/PASTE the section I am missing which details how to correct color positioning?

Have I missed something here?

So this is a positioning problem?

Open up a new bug report, then...

Your INSTALL file says to post bugs here.

If I can get this resolved I'll throw $100 at the project. I'd love to contribute to the codebase but I've no idea where to begin. :P

Is this a ghostscript bug by any chance?

What info would you like?

Printed fine here...

Scanned in...
testpage.ps scanned in

Rick,
I have the same problem with yellow color alignment. I see you can change total page alignment (instructions on align.ps), but can I change just the alignment of the yellow?

Thanks,
Cory

No.

hi all
i've been installing the HPLIP 3.9.4b but i've got the same yellow alignement problem. Let's face this problem and get it solved !

This is for foo2zjs drivers, NOT HPLIP, which is CLOSED SOURCE. Post to their site!

yellow alignment using hplib



Edited 1 time(s). Last edit at 06/16/2009 10:20AM by rickrich.