On 5/13/21 11:51 AM, Michael Hennebry wrote: > In an attempt to diagnose a friend's HP Deskjet D1420, > I'm running a Centos 6.10 LiveDVD. > The readily visible symptom is that it will > accept a job and claim to be printing it, > but nothing ever gets printed, not even a test page. > The same happens on her Ubuntu system. > > I recently learned that a blinking power light means > that the printer is complaining about something. > What? > http://h10032.www1.hp.com/ctg/Manual/c00905267#d0e5511enww > "If an error message appears > Read the error message that explains the problem and its solution." > Huh? > Where on a Deskjet D1420 could an error message possibly appear? > Does it mean this message in /var/cups/error_log? > E [13/May/2021:15:18:53 -0400] [CGI] Unable to create avahi client: > Resource temporarily unavailable > E [13/May/2021:15:18:53 -0400] [cups-deviced] PID 2094 (dnssd) stopped > with status 1! > > Would the presence or absence of whatever > avahi is cause the printer to complain? > > The printer used to print. > The hardware connection has not changed in years. > Printers usually have "print test page" soemewhere in their own menu. Before attempting to connect anything to printer I would test that first. Valeri > Any ideas? > -- ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++