- Thread starter graffian
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Fazerruss
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These printers won't have Corona wires, they will use charge rollers to reduce ozone plus the lines are present in the none image area (lead edge and trail edge of print)
If that sample print is from the colour machine and the lines are made up of more than one colour then it is more likely to be cleaning blade failure on the image transfer belt.
Is the toner cartridge a genuine HP or a compatible?
My laserjets have software settings so you can change the amount of toner it puts on the paper. Also the toner feed is via a hopper so removing, shaking, and re-fitting the cartridge sometimes helps. I have a colour laser that did the vertical lines, it needed new cartridges and the lines disappeared once they were fitted. Now the colours don't line up though
(non genuine cartridges) so I no longer use it.
(non genuine cartridges) so I no longer use it.
Fazerruss
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My laserjets have software settings so you can change the amount of toner it puts on the paper. Also the toner feed is via a hopper so removing, shaking, and re-fitting the cartridge sometimes helps. I have a colour laser that did the vertical lines, it needed new cartridges and the lines disappeared once they were fitted. Now the colours don't line up though
These machines don't have separate hoppers. All the toner is kept in the drum/developer cartridge unit.
If your colours don't line up you may need to perform the auto colour miss match procedure.
I meant the cartridges are hoppers, otherwise no point in shaking them up. There doesn't seem to be a colour miss match procedure, the book says it does it on start up. It is a 2600n and some sort of joint venture with Cannon, a very different set up to my mono HP lasers.
Seadog
Save the planet. It's the only one with rum!
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All of the HP laser engines were (still are?) Canon.
Edit: It seems the 2600n is also Canon judging by the spares parts numbers.
Last edited:
Fazerruss
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The reason for the difference is purely down to the machine being full colour rather than mono. So there are 3 extra drums an ITB or ETB and 3 extra lasers. The Canon mono machines are the same as many of the HP mono's
aguycalledsteve
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Fuser/Transfer unit. The bit that sticks the toner to the page. It has a roller in it and they become dirty or knackered over time and cause symptoms like this. When i install these i have to use gloves so that my grubby mits don't touch it.
Larger HP printers have removable units as part of a service kit. Smaller printers can be done but you have to weight up whether it's worth it vs cost vs likelihood of getting it apart and back together again with no bits left over.
Larger HP printers have removable units as part of a service kit. Smaller printers can be done but you have to weight up whether it's worth it vs cost vs likelihood of getting it apart and back together again with no bits left over.
graffian
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Genuine toner in the lj 4000, the printer was binned by my sisters office[it was 2years old at the time]
and came with two new toners, I was still on the one it came with after 15 years! but swapped it for a
new one to see if it improved the print, which it didn't. I could never get the density I got with my laserjet 4L.
The colour printer needed a yellow toner. The lines are yellowy green. green+blue?
I put a new yellow in it and it didn't make it any better.
It has lines of toner on the belt thingie, so I cleaned it, closed the door and let it do
it's calibration routine, then opened the door and there are lines of toner on the belt again.
and came with two new toners, I was still on the one it came with after 15 years! but swapped it for a
new one to see if it improved the print, which it didn't. I could never get the density I got with my laserjet 4L.
The colour printer needed a yellow toner. The lines are yellowy green. green+blue?
I put a new yellow in it and it didn't make it any better.
It has lines of toner on the belt thingie, so I cleaned it, closed the door and let it do
it's calibration routine, then opened the door and there are lines of toner on the belt again.
Farside
Badly Welded Man
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I picked up Laserjet 5P years ago for toffee money. It's still going strong, after who only knows how many pages it printed out in its original setting. They definitely don't make 'em like they used to. Somewhat telling, is that Win10 still has drivers for it, albeit you have to root them out via the download 'other printers' route, so there are likely still thousands of them in use around the world.
Fazerruss
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If the cartridge on the 4000 is good then the only other thing it can be is the fuser unit.
They are a no tools modular unit at only thirty odd quid plus vat
https://www.cartridgesave.co.uk/RG5...mTMJ1OBANt1uJECVu5l18xa67fIl28DBoCtOgQAvD_BwE
The 1600 fault will most likely be the ITB blade but it will again be a mudular unit part of the ITB assembly
and is replaced as a whole unit.
