Katun KNM 223 Drum Kit - Manual (Page 2)

(A) Left PU Frame
(B) Right PU Frame
(C) Cleaning Unit
(D) Drum Cleaning Blade
(E) Dust Shield
(F) Charge Corona
(G) OPC Drum
Rebuilding Instructions for Konica Minolta bizhub 223/283/363/423 and
bizhub 36/42 DR411 Drum Unit
Rebuild Kit Contents:
(1) OPC drum
(1) Drum cleaning blade
Pre-Disassembly
NOTE: Be sure to clear the life counter prior to removing the Imaging Unit (IU) from the main body.
Clear the following life counter using the Service Mode.
1. Prior to removing used Imaging Unit (IU), Select [Service Mode] → [Counter] → [Life] → [2] and clear the count of [Drum Unit Rotation Time].
2. Turn copier power off and remove Imaging Unit.
3. Detach OPC Drum Unit from Developing Unit by removing (4) silver screws.
Disassembly
NOTE: Follow these instructions carefully. The quality and performance of the rebuilt Konica drum unit will depend on your workmanship, as well
as the condition of the used Drum Unit being rebuilt. Be sure to read and understand each disassembly step prior to beginning each step.
1. Position OPC Drum Unit so the OPC Drum Unit is resting on Cleaning Unit (C).
2. Remove the 2 Phillips screws from the Right OPC Drum Unit Frame (B).
3. Remove the Right OPC Drum Unit Frame (B).
4. Remove used OPC Drum (G).
5. Remove Charge Corona (F) by pulling to the right.
6. Remove the 3 Phillips screws from the Dust Shield (E) and Drum Cleaning Blade (D).
7. Remove Dust Shield (E) and Drum Cleaning Blade (D).
8. Vacuum out the Cleaning Unit (C).
Assembly
9. Lubricate new Drum Cleaning Blade (D) edge with fresh toner.
10. Install new Drum Cleaning Blade (D) and Dust Shield (E) and reinstall 3 screws.
11. Clean Charge Corona (F) and reinstall it against Left OPC Drum Unit Frame alignment pins. Note: the ground contact that connects to the drum
cleaning blade bracket needs to be pushed down to fully reinstall the charge corona.
12. Remove protective black wrap from new OPC Drum (G). Lubricate the OPC by applying a light dusting of fresh toner on the surface. Install new
OPC Drum into Left OPC Drum Unit Frame (A). Install carefully; contact with the drum picker fingers can damage the drum coating.
13. Reinstall Right OPC Drum Unit Frame (B) while aligning the frame pins with the charge corona (F) and OPC drum (G). Secure Right OPC Drum
Unit Frame (B) using 2 Phillips screws in lower holes.
14. Manually rotate OPC Drum (G) to prevent Drum Cleaning Blade flip.
15. Attach OPC Drum Unit to Developing Unit using (4) previously-removed silver screws. Install Imaging Unit in copier and turn on power.
16. Select [Service Mode] → [Imaging Process Adjustment] → [Gradation Adjust] and carry out gradation adjust.