Digital BW, The Print

It seems to me that the matte paper setting in the R220 print driver won't allow 2880 printing 
(called Photo RPM.)

I'd like to be able to use the 2880 setting (and the additional micro-weave setting) to reduce 
micro-banding.

When I've switched to one of the glossy settings to force the issue, the resolution part looks 
fine, but the tonal curve is off, esp. lightening all of the darkest gray values. (I've since 
confirmed this with density step wedges.)

I don't mind the longer print times, and would like the extra bit of quality on the prints. Any 
advice on this?

On Sunday 18 March 2007 06:27, rockfordinvestigations wrote:
>
> When I've switched to one of the glossy settings to force the issue, the
> resolution part looks fine, but the tonal curve is off, esp. lightening all
> of the darkest gray values. (I've since confirmed this with density step
> wedges.)

Changing paper type affects the ink limits. Matte papers require more ink to 
reach the maximum density than the glossy ones, hence the result you have 
got.

Theoretically, you should be able to manually increase the ink limits for the 
glossy paper somewhere in the Advanced settings of the printer driver, 
however I am not sure how this could influence the colour fidelity - maybe 
reprofiling would be required. 

I do not know how to force windows (?) driver to use the max resolution for 
matte paper.

-- 
Milan Knížek
http://milan-knizek.net/
e-mail knizek {na} volny {v} cz

Thanks for the response. 

I'm using a mac, doing black only printing, and I've tried some variations with glossy 
settings and then trying to move the tones around with both dot gain profiles (a la 
Clayton) and gamma settings. However, it's just not getting close enough, mainly with lost 
detail in the shadows.

I have a feeling that it's just not possible to do 2880 with matte on this printer. Maybe in 
the future when I get a bigger model (4000?) it might be able to do 2880 with matte. I'd 
like to find out if that's a possibility.

> 
> Changing paper type affects the ink limits. Matte papers require more ink to 
> reach the maximum density than the glossy ones, hence the result you have 
> got.
> 
> Theoretically, you should be able to manually increase the ink limits for the 
> glossy paper somewhere in the Advanced settings of the printer driver, 
> however I am not sure how this could influence the colour fidelity - maybe 
> reprofiling would be required. 
> 
> I do not know how to force windows (?) driver to use the max resolution for 
> matte paper.

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "rockfordinvestigations" 
<rodmachen@...> wrote:
> I have a feeling that it's just not possible to do 2880 with matte on this printer. Maybe in 
> the future when I get a bigger model (4000?) it might be able to do 2880 with matte. I'd 
> like to find out if that's a possibility.

I believe that if you put a PK or PKN chip on the Eboni cartridge you will get all the options.   
Check Paul Roark's website, I think that is where I saw the hack about changing the chips.   
As Milan said you will have different ink coverage depending on the setting you use.  I've 
gone to using Photo RPM when using glossy and silver type papers (Crane SR, etc.) on my 
220s as it does eliminate the very faint microbanding that non RPM shows under a glass,  but 
haven't seen a need for it with matte papers.  I have been using UTR2 and UT3D inksets with 
profiles so I'm not exactly sure how the BO would fare.  The chips are easy enough to change 
and it's easy enough to run  few test prints at different glossy settings to see what happens.  
It's the great thing about that printer it's cheap enough to play all you want!

I'll try that, but I think it's the selecting of paper type that gives
the different options.

Maybe it's limited for a reason, so I could be wasting my time. 1440
on matte with the R220 might be the only way to go.


> I believe that if you put a PK or PKN chip on the Eboni cartridge
you will get all the options.   
> Check Paul Roark's website, I think that is where I saw the hack
about changing the chips.