I'm making a booklet of some handy notes. So, the old trick is print in pages of 4, to make binding easier. I spool about 60 of those and then it starts printing in my manual duplex until
*a wild blank line has been spotted*
`wat?`
I go back and see that I've not noticed a trail of white blanks that had been slowly creepily increasing in the print space where the text should be. Almost 20 of my pages are wasted. I take out the print cartridge and wipe the drum, run the cleaning sequence on a clean sheet and try to print.

Presto! good as new!

Sippin some coffee, browsing the web.. oh and woah! The blank reappears and it is now bigger. The previous 12 pages are not affected? wth

I do this whole thing again. Wipe and print. It works. And along the lines of 15 or so prints, the blank appears again, bigger and bolder. wth. I really need those prints now.

If it was broken, I'd have fixed it in the afternoon, but it is evening now. No one opens at this hour. Why is y printer fucking with me?