Results of applying new information:

C.Itoh M-8510: No self-test occurs either method of holding down Select
key. Printer head moves to left; nothing else happens.

Panasonic KX-P4420: After emptying toner waste collection unit and
powering on readout changed to CHECK MNL FEED U19. MANUAL, PRINT, and ON
LINE indicators flash. When try to print test page through Windows 98 get
"There was problem sending your document to the printer" message. As
cable works with other printers assume everything up to printer cable end
is fine.

Demetri Kolokotronis

On Thu, 4 Nov 1999 00:33:00 -0800 Yui Shin <[log in to unmask]> writes:
> Sorry, I wrote this in a hurry and did not jot down all the
> specifics. So
> here's
> a update:
>
> Demetri Kolokotronis <[log in to unmask]>
> wrote:
> > C.Itoh M-8510 did not respond when held Select key for three
> seconds as
> > advised.
>
> first set printer off-line then hold select key for 3 sec.s
> if that doesn't work try holding select key while turning on power
> switch.
>
> > Panasonic KX-P4420 produced no action except for indicating TNR
> CUP FULL
> > U28. Do not know what key(s) to operate to perform self test.
>
> there's a toner waste colection unit that needs to be replaced
> before you can proceed with self test. It's usually a small gray
> bottle full
> of
> expended toner. You can try reusing the bottle after it's emptied,
> but first
> look
> to see if there's a small fuse. If you find a small fuse - you will
> need to
> replace it
> to use this bottle again. There's usually a spare kept on the
> developer unit
> or
> toner cartridge. Please do not save wasted toner - old toner has
> lost most
> of its triboelectric charge and will cause more problems than it's
> worth.
> >
> > Have installed drivers for both on my computer. Print test page
> fails on
> > both.
> >
> Did either printer show "on-line" status before trying to print?
>
> > Do not understand "connect printer & pc together while unplugged,
> else
> > you could loose the I/O or worse if your printer is slow to bleed
> the
> > circuits". Unplug both printer and computer? Cannot just switch
> power
> > off?
> >
> You can just turn the power off, then connect them. It's just wiser
> to
> unplug
> to minimize further problems while troubleshooting your current
> problem.
>  Good luck -and don't hesitate to contact me for further help.
> -yui
>
>          The PCBUILD web site always needs good submissions.  If
>           you would like to contribute to the website, send any
>                hardware tech tips or hardware reviews to:
>                            [log in to unmask]

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