Kodak 7 - Manual (Page 17)

A-62032 November 1996 2-11
Changing the toner
collection bottle The used toner full indicator will appear on the operation panel
approximately every 100,000 prints when the black-to-white ratio
on the prints is 12%. When this indicator appears, follow the steps
below to replace the toner collection bottle.
1. Take out the toner collection bottle and cover the mouth with
the cap attached on the bottle.
2. Insert the new toner collection bottle into the printer.