Hi everyone,
I`ve had a HP Laserjet 5 printer for a while, and about 300 pages ago I put
in a new toner. Suddenly today it has started laying down horizontal black
lines, about 5mm in width, repeated every 9cm. Nothing has changed with the
printer, it`s not been moved or knocked. As it started the lastest print
job, which has these lines on, it started squaking rythmically as it was
bringing the paper through.

I`ve tried turning it off and on and swearing at it, as well as removing the
toner cartridge and reseating. Any other ideas that might help, suggestions
on a repair etc?

All help will be greatfully received!

On 6 Nov, 15:22, "Simon Finnigan" <SimonFinni> wrote:
> Hi everyone,
> I`ve had a HP Laserjet 5 printer for a while, and about 300 pages ago I put
> in a new toner. Suddenly today it has started laying down horizontal black
> lines, about 5mm in width, repeated every 9cm. Nothing has changed with the
> printer, it`s not been moved or knocked. As it started the lastest print
> job, which has these lines on, it started squaking rythmically as it was
> bringing the paper through.
>
> I`ve tried turning it off and on and swearing at it, as well as removing the
> toner cartridge and reseating. Any other ideas that might help, suggestions
> on a repair etc?
>
> All help will be greatfully received!

If you meen 9cm measured vertically down the paper, this is about the
circumference of the photo-sensitive print drum in the toner
cartridge. I would manually move the gear wheels on the drum, and see
if there are any teeth missing. Perhaps the 5mm width lines (across
the page?) are print characters collapsed into lines when the drum
hesitates at the missing tooth.

"Dave W" <davewi11> wrote in message
news:5480
> On 6 Nov, 15:22, "Simon Finnigan" <SimonFinni> wrote:
>
> If you meen 9cm measured vertically down the paper, this is about the
> circumference of the photo-sensitive print drum in the toner
> cartridge. I would manually move the gear wheels on the drum, and see
> if there are any teeth missing. Perhaps the 5mm width lines (across
> the page?) are print characters collapsed into lines when the drum
> hesitates at the missing tooth.

Yes that`s what I meant. I`ve rotated the drum fully and found no missing
teeth - but the black lines running across the page overlay whatever should
be underneath - the lines are solid black. It basically looks fine apart
from the black lines running across the page, nothing is squashed up or
smeared or anything.

SimonFinnigan declared for all the world to hear...
> Hi everyone,
> I`ve had a HP Laserjet 5 printer for a while, and about 300 pages ago I put
> in a new toner. Suddenly today it has started laying down horizontal black
> lines, about 5mm in width, repeated every 9cm. Nothing has changed with the
> printer, it`s not been moved or knocked. As it started the lastest print
> job, which has these lines on, it started squaking rythmically as it was
> bringing the paper through.
>
> I`ve tried turning it off and on and swearing at it, as well as removing the
> toner cartridge and reseating. Any other ideas that might help, suggestions
> on a repair etc?

I have a laserjet 2100 at work and it did that a while ago. Had to have
the imaging drum changed. Basically some toner got somewhere it
shouldn't have got and coated something it shouldn't have coated.

In article <fgq3c9$tdp$1>, Simon Finnigan
<SimonFinnigan> writes

>Yes that`s what I meant. I`ve rotated the drum fully and found no missing
>teeth - but the black lines running across the page overlay whatever should
>be underneath - the lines are solid black. It basically looks fine apart
>from the black lines running across the page, nothing is squashed up or
>smeared or anything.

Start a print, then switch off the printer while it's printing. Take
out the cartridge, lift the flap, and rotate the drum. If you can see
the black line(s) on the drum, that's the problem.

First thing to try is another toner cartridge.

>
> Yes that`s what I meant. I`ve rotated the drum fully and found no missing
> teeth - but the black lines running across the page overlay whatever should
> be underneath - the lines are solid black. It basically looks fine apart
> from the black lines running across the page, nothing is squashed up or
> smeared or anything.

5mm in 9cm is 1 in 18. Is there an 18-tooth gearwheel with a missing
tooth in the printer driving the cartridge?

"Dave W" <davewi11> wrote in message
news:0820
> >
>> Yes that`s what I meant. I`ve rotated the drum fully and found no
>> missing
>> teeth - but the black lines running across the page overlay whatever
>> should
>> be underneath - the lines are solid black. It basically looks fine apart
>> from the black lines running across the page, nothing is squashed up or
>> smeared or anything.
>
> 5mm in 9cm is 1 in 18. Is there an 18-tooth gearwheel with a missing
> tooth in the printer driving the cartridge?

No missing cogs at all. Replaced the toner cart and it is now working fine.
All I can assume is a dodgy toner :-)