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Re: Blue toner seems to be leaking, lines across page
Is the toner refilled ? if yes you have to buy a new one, you cant refill one toner more then 2-3 times because the cleaning system stops working in some point. if these streaks are visible in pc drum your drum is damaged and you need to replaced. the toner not istalled is caused by toner leak, toner contact pins are tirty, you need to clean them. if you remove drum and toners you cans see a 3 reading pins under toner rack.
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I'd try giving the cartridge you have a good shake first. If the line is still there, then I would give HP a call to troubleshoot it because those cartridges are expensive, and if they determine that the cartridge is at fault, then they will replace it free. 1-800-HP-INVENT Even if the printer is out of warranty, they should troubleshoot a print quality issue free because chances are that the toner is still IN warranty. Drums and toners and cartridges have an out-of-the-box warranty meaning that if you purchased your toner 8 years ago and took it out of the box last week, it's still under warranty ! Don't let them tell you otherwise - if you get a poorly trained phone center agent, they may not be aware of this policy. The Canadian phone agents usually are the ones that seem to be well trained enough to be aware of this long standing HP policy with respect to Laser consumables. If you get someone in the Philippines, it's usually best to just hang up and try again! 8:00 AM-6:00PM EST seems to be best when trying to get the Canucks.
This is nearly always the fault of the toner cartridge. The previous cartridge may have left toner on the transfer roller and this may have contaminated the new toner cartridge. Take the toner cartridge out and inside the printer under where the toner cartridge goes you will see a felt roller that goes across the printer and has a gear at one end. Wipe this roller with a dry clean lint free cloth, rotating it to make sure it is completly clean.
Check the blue coloured drum on the toner cartridge to see if there is a black line going across it. If so clean it with the same dry clean cloth.
If this does not work then I suggest you buy a genuine toner cartridge and try that.
1. Open the front cover of the printer and remove the drum/toner unit.
2. Gently wipe the scanner window with a soft dry cloth. The scanner window is located on the roof of the inside of the printer.
3. On the top of the drum unit, locate the blue tab on the left side. Slide it back and forth across the drum about 30 times.
4. Remove the toner cartridge (TN430 or TN460) from the drum unit (DR400). To remove the toner from the drum: hold down the blue lever on the right side of the drum (DR400) and lift the toner (TN430 or TN460) off of the drum unit.
5. Inside the drum unit (DR400) there is a green roller. Wipe the green drum roller with a dry tissue (i.e. Kleenex). You may turn this roller by moving the gears on the far left side.
6. If the pages area gray pages or have gray vertical lines, install a brand new toner cartridge. If pages have dots, spots, smudges or horizontal lines, install a brand new drum unit. OR If you are still experiencing gray pages or gray vertical lines, please install a brand new toner cartridge (TN430 or TN460).
Brother strongly recommends that customers do not use generic drum unitsand/or toner cartridges, or refill their Brother toner cartridge. Each Brother laser printer is designed to work at pre-set temperatures that are matched exactly to each of our individual toner formulations. Each individual component is designed to work with the other to ensure quality and reliability. Using non-Brother supplies may affect the hardware performance, print quality and machine reliability. The Brotherlimited warranty does not apply to any problem that is caused by the useof unauthorized third party drum units, toner cartridges or toner.
If I have helped please rate my post...I will always do my best to help
Was the toner remanufactured/ compatible? Sounds to me like the doctor blade in the cartridge is 'gummed' up and not allowing the toner to flow evenly across the Developer roller......try another cartridge
I was having the same problem with my MFC7820N. To be honest, I think I got a little lucky poking around with a screwdriver, because the problem seemingly dissapeared. However, I don't recommend it unless you know what your doing.
I did come across this solution on the internet afterwards though:
Open the front cover of the machine (open the compartment where you insert the toner cartridge) Wait for "front cover open" to show on the screen. Press the "Options" button, then press *00 and wait a few seconds, then close the front cover.
This resets something or other, I imagine it will work for you. Hopefully it does, and if so you're welcome :)
Now, if you can just tell me exactly what is causing my MFC7820N to only have a tiny amount of toner stick to the top right of the page, we'll call it even.
If the print is a dismal gray rather than a sharp black, you are
probably almost out of toner. This can manifest itself evenly across the
entire page or in splotches or stripes, depending on the printer. Sometimes you can wring a little bit more out of a toner cartridge by
taking it out and gently shaking it from side to side (never up and down,
as toner can spill out). You can also try turning up the printer’s
contrast adjustment, if it has such a knob (usually on the back side if it
exists). Faded print can also result from a dirty corona wire, because a
dirty wire inhibits a full electrical charge from being passed. If the printouts are consistently varied in density, and you have to
frequently remove the toner cartridge and shake it to redistribute the
toner inside it, make sure the printer is sitting on an even, flat
surface. Horizontal lines A horizontal line on the printout is probably the result of a
dirty or damaged roller. There are lots of rollers in the printer, and you
can use the space between the lines on the page to determine which roller
is causing the problem. Measure the distance between the errant
lines on the page and then use Table A to determine which part
might be causing the problem.
between lines Faulty
cartridge developer roller
cartridge photo drum Regularly spaced splotches If there are evenly spaced black spots but they don’t extend all the
way across the page, the problem is probably a scratch or flaw in the drum
or a build-up of toner on the fusing roller. If the spots are less than
three inches apart vertically, it’s probably the drum, because the drum
has a larger diameter than the fusing roller. Vertical line on edge of page This can indicate an almost empty or faulty toner cartridge or (less
frequently) some spilled toner inside the printer.