My brother printer DCP1510 is printing with smudge marks on the paper.I have just put a new toner cartridge in.

SOURCE: Brother Hl 5240 printer- toner light on

1) Turn off printer
2)Turn back on
3) Remove Drum and Toner.
4)Press Go for 1 second(it appears to do nothing)
5)Put Drum and Toner back in.
6)Press Go for 1 second(it appears to do nothing)
7)Close door.
Try that

SOURCE: Toner smudges along the extreme right side of the paper

If the smudges are gradually fading then it's likely just excess toner hitting the fuse drum. Try a few cleaning cycles/test prints and see if that makes it go away. If not, see if you can get a replacement toner.

SOURCE: Brother 4070 Printer will not recognize new toner cartridge

Hi

Just cover the eyes (on both sides) that you can see in the bottom of the machine after removing the imaging cartrige with a small piece of electrical tape.

With printer switched on push the switch which is located inside the upper left side of printer (it is a small white switch) and then release it. 


Also try resetting the gear, take the cartridge out. On the gear side take off 2 screws, the black gear on top right side, with a small spring underneath. Just take it off and reset it (rotate clockwise) so it is not at the stopping point.

Please do accept this solution and revert for further assistance.

Thanks
Rylee

SOURCE: Brother HL-2040 toner light stays on

I found this and it worked great.

1. Power Unit off

2. Open front cover

3. Press and hold GO and turn power on

4. When all 3 lights lit release and press GO twice

5. All lights turn solid

6. With all solid, press GO 5 times

7. Ready light GOes red

8. Close door and you're all set

Testimonial: "Thanks!"

SOURCE: Toner light still on with new toner

Is the printer still asking for a new toner..?

If it is the there is a gear that can be reset on the toner cartridge to tell the machine its a new toner cartridge. This is normally done by an engineer, but is quite easy to do if you know how. And I do :0