Printing Process
SM 6-13 M001
Detailed
Descriptions
Toner Density Control
More toner is fed when the
toner coating on the
development roller is thin
Less toner is fed when the toner
coating on the development roller
is thick
[A]: Pre-doctor blade
[B]: Doctor blade
[C]: Circulation of developer
A mixture of toner and developer circulates at the pre-doctor blade [A].
When the toner on the development roller decreases, the circulating region [C] gets smaller
to let more toner get to the development roller.
When the toner on the development roller increases, the circulating region [C] gets bigger
to let less toner get to the development roller.
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