poor quality when printing with CUPS

[Helge Blischke]

bui wrote:

>> bui wrote:
>>
>> > Hi
>> >
>> > I am using a HP laserjet 1015 to print PDF file. There are some image
>> > in the PDF file. The quality is very poor comparing to the result I get
>> > when printing from Windows. The image is blur and not smooth.
>> >
>> > I am using the laserjet.ppd file in cups/model folder
>> >
>> > How can I get the better quality?
>> >
>> > Thank you very much
>>
>> Set the default resolution to 600 dpi.
>>
>> Helge
>>
> 
> 
> Thank Helge,
> 
> The image quality is improved, but still not good enough.
> With CUPS, the result image has a lot of black dot and white dot. It look
> like CUPS just have two levels of color: black and white. With Windows,
> the transition between white and black is very smooth. As far as I know,
> the gray color has 256 level.
> 
> BAO

You may try to edit the PPD as follows:
in the lines beginning with *Resolution ,
change
BitsPerColor 1 to BitsPerColor 8
CupsColorSpace 3 to CupsColorSpace 1

Or try a different PPD from
http://www.openprinting.org/printer/HP/HP-LaserJet_1015
but then you might have to install the foomatic-rip filter.

Helge