Toshiba e-studio 55 Operator's Manual For Copying Functions page 138

Additional Explanation
The life of the toner cartridge (number of copies) varies depending on the following conditions.
1. Coverage of originals (printing ratio of the original) and density of original background
2. Size and density of originals
3. The existence of solid black when making copies (when a book is copied and the original
cover is partially opened)
4. Temperature and humidity in the room when making copies
5. Copy density and image quality mode
As indicated in the figure below, the life of the toner cartridge varies depending on the copy
mode and coverage of originals.
50,000
A
B
C
A
A
Type of originals
A.
B.
C.
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