Service manual

1. Start Key
2. Drum Motor
3. Main Motor
4. Belt H. P. Detection
5. QL
6. Charge Corona
7. Development Bias DC
8. Development Bias AC
9. Development Motor
10. Toner Supply Motor
11. Toner Supply Motor
Solenoid
12. Revolver Motor
13. Belt Transfer Charge
14. Revolver HP Signal
695
4787
305
505
Bk Y C Bk
Ck1 Ck2
Ck3
X
Note: 1. Time units are in [ms].
2. Timing is accurate within 20 [ms].
3. Ck1: Checks whether the Bk and M cartridge are present.
Ck2: Checks whether the Y cartridge is present.
Ck3: Checks whether the C cartridge is present.
4. The amount of time "X" depends on the position of the revolver unit.
5. This sequence will stop if the cartridge sensor detects no cartridge.
6. The drum motor and the development motor rotate at half speed.
7. The drum motor stop timing does not depend on belt H.P. detection.
This is because toner replenishment is performed after this sequence.
8. This sequence is performed after a cartridge which is in the toner end or near-end condition is replaced.
This sequence describes what happens when Bk toner is replaced, therefore the revolver stopes at the Bk development position.
TIMING CHART 17 [Cartridge check sequence]
SM APPENDIX 11-17 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA