typical shelf or unused life for toner cartridges?

I purchased an HP 2420d laserjet back in 2005. I used it a lot from
2005-2007 and then only occasionally since about 2008. About 2010, I
started noticing very light print. I at first attributed this to the
transfer roller, which is one possibility the manual mentioned to replace,
and I replaced it a week ago. Same light print. On a whim, I decided to
purchase a new toner cartridge and install. Presto! Problem solved. Now I
have a question: what is the typical lifetime for either an unused
cartridge or one that only sees occasional use? The toner cartridge I
replaced had not begun to run out at all, in fact it had been sitting on the
shelf for 3-4 years.

Thanks.

"Jack Sala" wrote:
I purchased an HP 2420d laserjet back in 2005. I used it a lot from
2005-2007 and then only occasionally since about 2008. About 2010, I
started noticing very light print. I at first attributed this to the
transfer roller, which is one possibility the manual mentioned to replace,
and I replaced it a week ago. Same light print. On a whim, I decided to
purchase a new toner cartridge and install. Presto! Problem solved. Now I
have a question: what is the typical lifetime for either an unused
cartridge or one that only sees occasional use? The toner cartridge I
replaced had not begun to run out at all, in fact it had been sitting on the
shelf for 3-4 years.

Thanks.

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The problem is
usually with cartridges that have a built in drum like yours, the drum will
deteriorate even in darkness and definitely in the printer; the drum is
affected by light, even tiny amounts over time. Light print is nearly always
drum related in a HP printer.
Tony

On Wed, 22 Feb 2012 22:14:28 -0600, Tony lizandtony at orcon dot net
dot nz wrote:

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The problem is
usually with cartridges that have a built in drum like yours, the drum will
deteriorate even in darkness and definitely in the printer; the drum is
affected by light, even tiny amounts over time. Light print is nearly always
drum related in a HP printer.

sorry to intervene in the O/P's thread ....

Tony, we have a P1505N which has a nominal 1500 page @5% cartridge
capability, and which reports about 400 left. The printed images are
faint in the central 40% or so of the width. Is this likely to signal
the same issue and resolution (replace cart)?

From: "who where"

On Wed, 22 Feb 2012 22:14:28 -0600, Tony lizandtony at orcon dot net
dot nz wrote:

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The problem is
usually with cartridges that have a built in drum like yours, the drum will
deteriorate even in darkness and definitely in the printer; the drum is
affected by light, even tiny amounts over time. Light print is nearly always
drum related in a HP printer.

sorry to intervene in the O/P's thread ....

Tony, we have a P1505N which has a nominal 1500 page @5% cartridge
capability, and which reports about 400 left. The printed images are
faint in the central 40% or so of the width. Is this likely to signal
the same issue and resolution (replace cart)?

Yes. Did you shake the cartridge ?


--
Dave
Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk
http://www.pctipp.ch/downloads/dl/35905.asp

who where wrote:
On Wed, 22 Feb 2012 22:14:28 -0600, Tony lizandtony at orcon dot net
dot nz wrote:

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The problem
is
usually with cartridges that have a built in drum like yours, the drum will
deteriorate even in darkness and definitely in the printer; the drum is
affected by light, even tiny amounts over time. Light print is nearly always
drum related in a HP printer.

sorry to intervene in the O/P's thread ....

Tony, we have a P1505N which has a nominal 1500 page @5% cartridge
capability, and which reports about 400 left. The printed images are
faint in the central 40% or so of the width. Is this likely to signal
the same issue and resolution (replace cart)?

Yes very likely. One of the factors can be the 5% coverage, if your printer has
printed a greater than 5% average the cartridge will print light before the
1500 pages are done. Having said that, I would expect it to print light across
the width of the page. Light printing in the middle of the page is normally
caused by a worn drum requiring replacement of the cartridge (once more, that
is in printers that use integrtated cartridges like yours).
Tony

On Fri, 24 Feb 2012 14:51:23 -0600, Tony wrote:

who where wrote:
On Wed, 22 Feb 2012 22:14:28 -0600, Tony lizandtony at orcon dot net
dot nz wrote:

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The
problem is
usually with cartridges that have a built in drum like yours, the drum
will deteriorate even in darkness and definitely in the printer; the
drum is affected by light, even tiny amounts over time. Light print is
nearly always drum related in a HP printer.

sorry to intervene in the O/P's thread ....

Tony, we have a P1505N which has a nominal 1500 page @5% cartridge
capability, and which reports about 400 left. The printed images are
faint in the central 40% or so of the width. Is this likely to signal
the same issue and resolution (replace cart)?

Yes very likely. One of the factors can be the 5% coverage, if your
printer has printed a greater than 5% average the cartridge will print
light before the 1500 pages are done. Having said that, I would expect
it to print light across the width of the page. Light printing in the
middle of the page is normally caused by a worn drum requiring
replacement of the cartridge (once more, that is in printers that use
integrtated cartridges like yours). Tony

Or badly distributed remaining toner. Rock the cartridge back and forth a
few times and you'll often get a load more proper pages out.



--
Use the BIG mirror service in the UK:
http://www.mirrorservice.org

*lightning protection* - a w_tom conductor

On Thu, 23 Feb 2012 21:34:23 -0500, "David H. Lipman"
wrote:

From: "who where"

On Wed, 22 Feb 2012 22:14:28 -0600, Tony lizandtony at orcon dot net
dot nz wrote:

Toner cartridges definitely have a life. People differ enormously when
discussing this and most manufacturers give only a year or two. The problem is
usually with cartridges that have a built in drum like yours, the drum will
deteriorate even in darkness and definitely in the printer; the drum is
affected by light, even tiny amounts over time. Light print is nearly always
drum related in a HP printer.

sorry to intervene in the O/P's thread ....

Tony, we have a P1505N which has a nominal 1500 page @5% cartridge
capability, and which reports about 400 left. The printed images are
faint in the central 40% or so of the width. Is this likely to signal
the same issue and resolution (replace cart)?

Yes. Did you shake the cartridge ?

No, but after seeing Bob's post I will give it a go. I expect (ref
Tony's comment) that it *may* be due to the 5% assumption, although I
alos would have expected a more even spread of image degradation
across the page.

I found an original HP 12A in an unopened box in the back of my storage
shlef. Unsealed and I installed a few weeks ago. Disappointed to find only
the faintest of print.
Shaking didn't help.
Any way to revive this?

..

"Jack Sala" wrote in message
...
I purchased an HP 2420d laserjet back in 2005. I used it a lot from
2005-2007 and then only occasionally since about 2008. About 2010, I
started noticing very light print. I at first attributed this to the
transfer roller, which is one possibility the manual mentioned to replace,
and I replaced it a week ago. Same light print. On a whim, I decided to
purchase a new toner cartridge and install. Presto! Problem solved. Now
I have a question: what is the typical lifetime for either an unused
cartridge or one that only sees occasional use? The toner cartridge I
replaced had not begun to run out at all, in fact it had been sitting on
the shelf for 3-4 years.

Thanks.