Recovery From Toner End Condition - Ricoh FW780 Service Manual

DEVELOPMENT

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 the first 30
seconds, toner is supplied at 100% of the supply amount until TS level reaches 3.
The main motor continues to rotate the development unit for another 30 seconds.
Then copies can be made.
If the TS level does not reach 3, 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.
SM 2-5 B047/B048