On Fri, 14 May 2021, Frank Cox wrote: > The exact test of the output from hp-probe -busb -g is.... [liveuser at localhost ~]$ hp-probe -busb -g HP Linux Imaging and Printing System (ver. 3.15.9) Printer Discovery Utility ver. 4.1 Copyright (c) 2001-15 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. -------------------- | DEVICE DISCOVERY | -------------------- hp-probe[3110]: debug: {} hp-probe[3110]: debug: Cache miss: deskjet_d1400_series hp-probe[3110]: debug: Reading file: /usr/share/hplip/data/models/models.dat hp-probe[3110]: debug: Searching for section [deskjet_d1400_series] in file /usr/share/hplip/data/models/models.dat hp-probe[3110]: debug: Found section [deskjet_d1400_series] in file /usr/share/hplip/data/models/models.dat Device URI Model -------------------------------------------------- ----------------------- hp:/usb/Deskjet_D1400_series?serial=TH75T2313904Y5 HP Deskjet D1400 series Found 1 printer(s) on the 'usb' bus. Done. [liveuser at localhost ~]$ > The output from hp-testpage printername -g is.... [liveuser at localhost ~]$ hp-testpage Deskjet_D1400_series -g HP Linux Imaging and Printing System (ver. 3.15.9) Testpage Print Utility ver. 6.0 Copyright (c) 2001-15 Hewlett-Packard Development Company, LP This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to distribute it under certain conditions. See COPYING file for more details. error: No device found that support this feature. error: No installed printers found (or) Invalid printer device selected [liveuser at localhost ~]$ hp-testpage -g Likewise with other printername's or with none. > The relevant parts of /var/log/messages, /var/log/cups/access_log and /var/log/cups/error-log and /var/log/cups/page_log are.... messages: a lot of May 20 14:57:25 localhost hp-testpage: hp-testpage[3145]: error: No device found that support this feature. May 20 14:57:25 localhost hp-testpage: hp-testpage[3145]: error: No installed printers found (or) Invalid printer device selected access_log: nothing relevant so far page_log: empty so far After using 127.0.0.1:631...testpage, processing since Thu 20 May 2021 03:06:23 PM UTC messages: May 20 15:04:57 localhost kernel: perf: interrupt took too long (3976 > 3962), lowering kernel.perf_event_max_sample_rate to 50000 May 20 15:06:24 localhost kernel: usblp0: removed access_log: localhost - - [20/May/2021:15:06:23 +0000] "POST /printers/Deskjet-D1400-series HTTP/1.1" 200 396 Print-Job successful-ok page_log: Deskjet-D1400-series anonymous 1 [20/May/2021:15:06:56 +0000] 1 1 - localhost Test Page - - At no point did I get a complaint about communication or cartridges. In case it matters, I'm running a centos 7 live DVD. -- Michael hennebry at web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards