8 Install the developing unit. Slowly insert the developing unit into the copier along the guide of the copier until it stops. Tighten the fixing screw which was removed in procedure (D), and fix the developing unit to the copier.
Fixing screw (step screw)
4 Close the front cabinet.
2
1 Developer unit
(5) Toner density sensor level check
1 Turn on the power switch of the copier.
(4) Toner supply
1 Shake the toner cartridge up and down. Shake the toner cartridge up and down 9 to 10 times.
2 Adjust the developer level. (a) Perform the key operations of simulation 25 sub 2.
C
0 2 5
0
C 2
2 Install the toner cartridge. Install the toner cartridge to the copier along the guide of the copier. Turn the toner cartridge counterclockwise to lock.
With the above key operations, simulation 25 is performed and the developer is stirred for 3 minutes. (b) After stirring the developer for 3 minutes, the toner density level is read by the main PWB. During stirring, the toner density sensor level is displayed on the MULTI COPY display. (Range: 1 � 99) [Note] If the simulation is cancelled during execution, the automatic reading cannot be performed. Do not cancel the simulation during execution. (c) Press the CLEAR key three times to cancel simulation 25.
2
1
c
c
c
3 Supply toner. Remove the sheet from the toner cartridge and supply toner. Slowly return the toner cartridge to the original position.
