Ricoh af 850 Service Manual enh proc

B479 8542

85/105PPM MFP UPGRADE KIT

(Machine Code: B479)

INSTALLATION PROCEDURE

For Machine Code: A294/A295 Copier

NOTE: THE UPGRADE KIT MUST BE INSTALLED BY A CUSTOMER SERVICE

REPRESENTATIVE WHO HAS COMPLETED THE TRAINING COURSES ON THE BASE COPIERS.

Printed in Japan

<<< 1. Existing Toner Removal >>>

1. Remove the drum unit, the transfer unit and the devel opment unit.

2. Remove the toner bottles. (Upper: SP 5804-62, Lower: SP 5804 -63)

3. Remove the upper right cover and the upper/lower rear covers.

4. Turn on the drum motor (SP 5804 -43) for 2 minutes to remove the toner in the toner collection unit.

NOTE: More toner can be removed by tapping the case for 20 to 30 seconds as shown.

5. Remove the paper feed connectors.

6. Remove the two-Ö6 tubes. Hook the upper end of the tube on the machine frame as shown to prevent toner dropping.

7. Remove the cap [A] of the tube joint case [B] at the end of the Ö12.4-silicon tube on the right side of the main frame.

[A]

[B]

8. Using a vacuum cleaner, suck the toner from the end of the tube joint case.

NOTE: Do not damage the coil inside the tube joint case.

9. Run the toner bank motor (SP5804-61) and the supply clutch (SP5804 -64) for about 2 minutes.

10. Clean out the inside of the tube Ö6 tube as well (3 places).

<<< 2. Toner Bank Unit Replacement >>>

11. Turn off the main switch and plug off the power supply cord.

12. Remove the left lower cover, rear upper and rear lower covers.

13. Remove the screw of the distribution case (A2943641) on the upper part of the toner bank unit, and then slide the case up.

14. Pull the power plug out and remove the noise filter. (2 screws)

CAUSION: Be sure that the main switch is tuned off and the power supply cord is removed.

15. Remove the motor DC-5.1W. (1 connector, 2 screws)

16. Remove the snap ring of the toner transport screw and slide the toner transport screw joint over to the left.

17. Remove the toner transport screw case. (2 screws)

NOTE: When the case is removed, toner remai ning inside the bank will fall out. Clean it using a

vacuum cleaner.

18. Remove the 1 screw on the side of the toner bank unit itself.

19. Disconnect the toner bank harness in 3 places and remove it.

20. Remove the outer and inner covers of the toner bank unit (3 screws).

21. Remove the 3 screws on the front of the toner bank unit.

22. Slowly pull out the toner bank unit from the mainframe (toward the front).

23. Replace the toner bank with new type toner bank.

24. Re-assemble the removed parts.

NOTE: 1) Do not forget repositioning the distribution case and secure the screw, which were

done in Step 13.

2) Do not forget reinstall the snap ring, which was done in Step 16.

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