Re: [hpoj-devel] Printing was too dark

[Joe P. <joe...@sn...>]

On Fri, 13 Oct 2000, Marco Becerril wrote:
> Hi:
> 
> I installed the wrapfilter file succesfully. Thanks
> Joe Piolunek for your help.
> 
> However the printing is too dark.
> 
> I read about "gamma.ps".
> 
> What is it?
> Can it help me with the problem?
> How can I add or install gamma.ps?
> ...
> HHow can I resolve this problem?
> 
> Thanks in advanced
> 
> Marco Becerril
> 


Marco -

"gamma.ps" is a text file that you create.

To use gamma.ps, create and save the file first, then change your driver
settings in printtool.

To create the file:
Copy the part between the lines below to a text file and save it as 
/usr/local/etc/gamma.ps

Note: In case the lines wrap, there are only two lines
of text in this version of the file. The second line starts with the
first "{0.333 exp}" and ends with "setcolortransfer".


cut-------------------------------------------

%! 
{0.333 exp} {0.333 exp} {0.333 exp} {0.333 exp} currenttransfer
setcolortransfer 

cut-------------------------------------------


Setting ownership and permissions for gamma.ps:
]$ su
give root password

cd /usr/local/etc
chown root:root gamma.ps
chmod 644 gamma.ps


Changing your printtool settings:
In printtool, there is a line marked "Extra gs options".
You will find that by clicking on your printer driver name, then clicking edit,
then click select. Enter this on the 'extra gs options' line:

"gs /usr/local/etc/gamma.ps" (without the quotes).

Make sure printtool doesn't change any of your other settings.

After all this, restart lpd using the printtool menu item.  You don't need to
restart lpd if you are only modifying 'gamma.ps'.

I hope this fixes it for you. Please let us know how well it works. 

-------
Joe