Brother HL 1440 Laser Printer "cleaning leaves roof" Questions

...cleaning prossess,, says ready,,,changed paper type take a q-tip and clean the scanner window. this is located in a 3/16' opening on the roof of the printer cavity it will be about 8inchs long. pull ...

I used off brand toner. Now window displays empty toner message and won't print even though everything is full. What is solution? What has probably happened is that some ink has gotten lodged within ...

When I print, some of the letters are smearing. Hi as per your problem, its a problem in your ink cartridge, so please clean its head with isopropyle alcohol by gently putting alcohol on cartridge ...

...leaves part of letters off intermitenetl I have replaced the toner cartridge and the drum unit but I still have a persistent problem of some text having while lines at the bottom of the text. Is the ...