I have an HP Deskjet which uses HP27 and HP28 ink cartridges.

I am thinking of purchasing a more recent deskjet which is of a similar
design but uses HP21 and HP22 ink.

I read on a website that the only difference between HP21/HP27 and HP22/HP28
is that HP reduced the amount of ink in the latest cartridges and that
physically the cartridges are the same size etc.

Assuming this information is correct would I be able to use my old
cartridges in the newer machine ?

Mike.

"Martin" <no_spamming_@.com> wrote in message
news:(E-Mail Removed)...
>I have an HP Deskjet which uses HP27 and HP28 ink cartridges.
>
> I am thinking of purchasing a more recent deskjet which is of a
> similar
> design but uses HP21 and HP22 ink.
>
> I read on a website that the only difference between HP21/HP27 and
> HP22/HP28
> is that HP reduced the amount of ink in the latest cartridges and that
> physically the cartridges are the same size etc.
>
> Assuming this information is correct would I be able to use my old
> cartridges in the newer machine ?

It depends on the printer, but the answer is generally "no". Most of
the printers that are designed for the 21/22 will not accept the 27/28.
They are physically similar but are somewhat different electrically.
Check the spec's for the printer you are interested in to see if it will
take the larger 27/28 cartridges.

Regards,
Bob Headrick, MS MVP Printing/Imaging

Wih HP there is allway one rule of a tumb. You can use cartriges with a
lover capacity in printes with higher capacity but not vice versa.

That rule is solid as First God Commandment.


--
Pozdrav

adriatic
http://adriatix.hr/Blog/Index.htm
"Bob Headrick" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> "Martin" <no_spamming_@.com> wrote in message
> news:(E-Mail Removed)...
> >I have an HP Deskjet which uses HP27 and HP28 ink cartridges.
> >
> > I am thinking of purchasing a more recent deskjet which is of a
> > similar
> > design but uses HP21 and HP22 ink.
> >
> > I read on a website that the only difference between HP21/HP27 and
> > HP22/HP28
> > is that HP reduced the amount of ink in the latest cartridges and that
> > physically the cartridges are the same size etc.
> >
> > Assuming this information is correct would I be able to use my old
> > cartridges in the newer machine ?
>
> It depends on the printer, but the answer is generally "no". Most of
> the printers that are designed for the 21/22 will not accept the 27/28.
> They are physically similar but are somewhat different electrically.
> Check the spec's for the printer you are interested in to see if it will
> take the larger 27/28 cartridges.
>
> Regards,
> Bob Headrick, MS MVP Printing/Imaging
>