Installing HP Deskjet 820Cxi in Slackware 64 14.2

by Luan

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Posted on 7 March 2021, 22:06

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• PNM2PPA
• CUPS
• OTHER CONFIGURATIONS

PNM2PPA

This printer needs a program called pnm2ppa to work. This program is used as filter to convert commands to PPA protocol.
More details about this project can be found in this page http://pnm2ppa.sourceforge.net/

To install the pnm2ppa the following steps should be followed:

• Download newest version of pnm2ppa in sourceforge;
• Decompress the tar.gz file:

$ tar -zxvf pnm2ppa-1.13.tar.gz
$ cd pnm2ppa-1.13
$ ./configure
$ make
# make install

By default pnm2ppa is installed in prefix /usr/local/ and the following command can be used to make pnm2ppa acessible:

# ln -s /usr/local/bin/pnm2ppa /usr/bin

CUPS

The printer can be installed in CUPS interface using the .ppd file:
HP-DeskJet_820C-pnm2ppa.ppd

The installation follow default procedure of installing a ppd printer in cups.

OTHER CONFIGURATIONS

pnm2ppa uses a configuration file (/usr/local/etc/pnm2ppa.conf) to control how the printer works.
In my printer the color drops were too much intense in default configuration – Prints came too wet. To deal with this I uncommented and edited the lines of Gamma values, as shown below.

# You can specify Gamma values as a decimal number for each primary color

GammaR 0.2      # red enhancement
GammaG 0.2      # green enhancement
GammaB 0.2      # blue enhancement

Category Misc

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