🚀 go-pugleaf

In message <na.750b01470e.a60120lionels@argonet.co.uk> Lionel Smith wrote:

> In article <19960914.192027.85@heinrich.tcp.co.uk>, heinrich@tcp.co.uk (Paul
> Heinrich) wrote:
> > 
> > In message <na.6a6aa9470d.a50120quilljar@argonet.co.uk> Christopher Jarman
> > wrote:
> > 
> > > I have used a Canon BJC 600 colour BubbleJet printer for a couple of
> > years
> > > now and it has been very reliable 
> > 
> > You have been exceedingly fortunate then! My experience and that of many
> > Hampshire schools.  Blocked heads seem to be the rule, certainly on my
> > 600 which often fails to print blue correctly, (attached to RiscPC 600
> 
> I have been using a 600e (on an A5000 mostly, no TurboDriver) for the last
> 18 months or so with no serious problems.
> 
> IMHO A large number of failures (including those in Hampshire mentioned
> above) are due to users not switching printer off before turning off mains
> power - heads are then not parked correctly causing sspillage and/or drying
> out.
> 
> Infrequent use where the sponge wadding in tanks pulls back out of contact
> with head ink inlet and also possible crystalization of ink solids -
> refilling tanks and using third party cartridges may not help here and will
> certainly invalidate warranty if Canon discover - and they can analyse inks
> in returned print heads.
> 
> Running printer with one or more ink tanks dry - like a kettle the heating

> elements (48, or is it 64, per colour) then burn out.
> 
> If users RTFM and use a little common sense most problems can be avoided,
> but do watch out for that wadding shrinking back from tank outlets, if a
> tank has plenty of ink and a nozzle check pattern (four bar fencing) is not
> good then either the wadding has shrunk or the heaters have vapourised.

All of Lionel comments I agree with.  I would like to add something I saw on
the bench my ink refill shop last I visited to get BJC4000 colour refilled.
The typed up hint sheet said that steam was the best thing to unblock heads.
There was some sort of humidifier that could be bought from chemist's shops
that where good, or failing that tube directing steam onto the heads was the
go.  I know we can refill our HP cartridges to at least 6 times (its still
going!) since I put a big sign on the printer for a student to urgently
contact me as soon as it begins to run out.  Otherwise a dozen or so
students will continue to try (well it *might* come good :-( ) to use it and
gradually dry up the ink in the jets.


-- 

Rob Ward
mc4rcw@mfs2.ballarat.edu.au