Brother HL4040CN Laser Printer "magenta drum" Questions

...drum problem? Try swapping the black and the magenta (red) cartridge. This will not damage the printer and you can see if the toner or the drum is defective. If you get a red page, drum Black page, ...

...magenta line on the right edge of the paper - can't find any reference to this in the manual - suspect it might need a new drum? This is because you have left the corona cleaning wire pushed to ...

magenta refilled cartridge, and the printer won't print. I think I know what the problem is... When you refill these toner cartridges you need to reset the "toner empty" cog wheel. For instructions on

drum unit. Fold the toner cartridgehandles down once the cartridges are in place. 1. C- Cyan, 2. M- Magenta, 3. Y- Yellow, 4. K- Black Hold the green parts of the belt unit with both hands and liftthe

...the Magenta cartridge (official Brother cartridge), though saw this problem near end-of-life of the previous Magenta cartridge.  Drum Unit status is 42%, so not expected to be near

...Magenta drum to see if the thin corona wire has been broken. You will need to remove the Cyan toners to get to the corona wire cover. If is damaged or broken, the whole drum will have to be

...drum unit counter is <900. Thanks! It could be a problem with the bias voltages in the High Voltage Power Supply, but a much more common cause is simply a bad magenta toner cartridge. If the ...

...Magenta cartridge but it seems to be spilling ink. When I print in color, the images are not good. Make sure that the toner cartridges are installed properly.Make sure that the drum unit is installed ...

release button and then open the front cover. 2.Hold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops. there is 4 toner cartrides (black,cyan,yellow,magenta