I have had an HP Laserjet 3030 for years. Generally it works OK. Recently it's a disaster.<br />
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I get all kinds of weird/crazy errors these days:<br />
Jun 5 19:56:50 dumpster python: io/hpmud/musb.c 1084: bulk_read failed: No such device<br />
Jun 5 19:56:50 dumpster python: io/hpmud/dot4.c 172: unable to read Dot4ReverseCmd header: No such device<br />
Jun 5 19:56:50 dumpster python: io/hpmud/musb.c 1930: invalid Dot4Credit from peripheral<br />
Jun 5 19:56:50 dumpster python: io/hpmud/pml.c 461: GetPml channel_write failed ret=12<br />
Jun 5 19:56:50 dumpster python: io/hpmud/musb.c 1044: bulk_write failed buf=0x7fff6a176560 size=9 len=-19: No such device<br />
Jun 5 19:56:50 dumpster python: io/hpmud/dot4.c 649: unable to write Dot4CloseChannel: No such device<br />
Jun 5 19:56:50 dumpster python: io/hpmud/musb.c 1044: bulk_write failed buf=0x7fff6a176560 size=7 len=-19: No such device<br />
Jun 5 19:56:50 dumpster python: io/hpmud/dot4.c 358: unable to write DOT4Exit: No such device<br />
Jun 5 19:56:59 dumpster udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/hp_LaserJet_3030<br />
Jun 5 19:57:02 dumpster pulseaudio[3094]: ratelimit.c: 2 events suppressed<br />
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Jun 5 19:57:39 dumpster perl: io/hpmud/pp.c 627: unable to read device-id ret=-1<br />
Jun 5 19:57:39 dumpster kernel: usblp0: removed<br />
Jun 5 19:57:39 dumpster kernel: usb 8-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes<br />
Jun 5 19:57:39 dumpster kernel: usb 8-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes<br />
Jun 5 19:57:39 dumpster kernel: usb 8-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes<br />
Jun 5 19:57:39 dumpster kernel: usb 8-2: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes<br />
Jun 5 19:58:24 dumpster perl: io/hpmud/dot4.c 172: unable to read Dot4ReverseCmd header: Resource temporarily unavailable<br />
Jun 5 19:58:24 dumpster perl: io/hpmud/musb.c 1930: invalid Dot4Credit from peripheral<br />
Jun 5 19:58:24 dumpster perl: io/hpmud/pml.c 375: SetPml channel_write failed ret=12<br />
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Recently, scanning doesn't appear to work. gscan2pdf reports that it can't find any device. I'm going to try uninstalling and reinstalling the printers through hplip's GUI to see what happens.
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