DEVELOPMENT
A251/A252 2-4 SM
2.4 DEVELOPMENT
2.4.2 TONER DENSITY CONTROL
Recovery from Toner End Condition
After replacing the toner cartridge (opening and closing the original feed unit), the
main motor rotates the development unit for 60 seconds. During this period, toner
is supplied at 100% of the supply amount until TS level reaches 3. Then, the main
motor rotates the development unit for another 30 seconds. Then copies can be
made.
If the TS level does not reach 3 after rotation of the development unit, the CPU
stops the machine and displays the toner end condition. This prevents the operator
from resetting the toner end condition by simply opening and closing original feed
unit.
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