Digital BW, The Print

I apologize, if this observation was published in conference before.

One my customer tried to print old BW photos with a warm tone on 
Epson Stylus Photo 2100. He used Archival Matte Paper (Enhanced MP). 
The problem was that the print outs were pink, there was very strong 
shift to magenta.

I have try to check setup of printer, I have use several printing 
methods including custom ICC profiles from net, which work very well 
with my 2100. Allways magenta shift.

I have try to compare printing from my 2100 and his 2100 - both from 
his computer, with the same USB cable and with identical setup. And 
there I discovered an interesting thing - printer with magenta shift 
has dimmed (no active) 2880 dpi in advanced setup. Another things 
were identical  - including firmware version.

I have check this with another customer, which has the identical 
problem and his printer connected by FireWire has 2880 dimmed too.

Those who has identical problem - may you check, please, this problem 
and dimmed 2880 dpi in driver?

Is there any reason? Is there any solution?

TIA

Martin
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