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Procedure for the Installation of Developer
Maintenance Kits in the
CX3535/CX4545 MFP
Step 1
Process Unit Disassembly
Step 2
Unit Disassembly / Maintenance Part Replacement for the Drum/Cleaning Unit
Step 3
Unit Disassembly / Maintenance Part Replacement for the Developer Unit
Step 4
Process Unit Re-assembly
Step 5
Adjustment of the Auto-Toner Sensor
Step 6
Performing Image Quality Control
Step 7
PM Counter Reset
Black Developer Kit
Part Number 58287604
Contents
Drum cleaning blade
BL-FC28D
1
Main charger grid
GRID-CHARGR-MAIN F45X
1
Needle electrode
ELCTRD-CHARGR-MAIN-380
1
Main charger cleaner
FILM-CLNR-GRID-F45X
2
Developer material
D-FC25K
1
Developer unit filter
ASYS-DUCT-DEV-COV
1
Ozone filter 1
FLTR-OZON-45X-CBO-600M
1
Slit glass cleaner pad
ASYS-CLNR-GLASS
1
Drum cleaning blade
BL-FC28D
3
Main charger grid
GRID-CHARGR-MAIN- F45X
3
Needle electrode
ELCTRD-CHARGR-MAIN-380
3
Main charger cleaner
FILM-CLNR-GRID-F45X
6
Developer material (Y)
D-FC25-Y
1
Developer material (M)
D-FC25-M
1
Developer material (C)
D-FC25-C
1
Developer filter
ASYS-DUCT-DEV-COV
3
DEV-KIT-FC25K
KIT:MAINTENANCE DEVELOPER BLACK
FC25K
Color Developer Kit
Part Number 58287605
Contents
DEV-KIT-FC25CLR
KIT: MAINTENANCE DEVELOPER COLOR
FC25CLR
Step 1 - Process Unit Disassembly
1
Remove Unit
2
Remove Knob
3
Disconnect Connector
4
Remove Cover
5
Remove Retainer
6
Release Latch
7
Separate Units
Drum/Cleaning Unit
Developer Unit
Step 2 - Unit Disassembly / Maintenance Part Replacement - Drum/Cleaning Unit
1
Remove Charger Assembly
Remove Charge Cleaning Rod
2
3
Replace Pads
PM Part
4
Remove Charge Grid
5
6
Remove Cover
Replace Needle Electrode
PM Part
7
Replace Cover
8
9
Replace Charge Grid
Remove Drum Bushing
PM Part
10
Remove Drum Shaft and
Drum
11
Replace Cleaning Blade
PM Part
12
Re-assemble Unit
Step 3 - Unit Disassembly / Maintenance Part Replacement - Developer Unit
1
2
Unlock Retaining Clip
Unlock Retaining Clip
3
Unlock Retaining Clip
Shake New Developer
6
Fill Developer Unit
Remove Cover and empty old
4
5
developer in appropriate container
for disposal.
PM Part
7
10
Rotate Developer Roller to
coat evenly
Re-install Cover
8
Level New Developer in Unit
11
Secure Clips
9
12
Place Cover.
(Inspect Latch points or leakage may occur)
Secure Clip
Step 4 - Process Unit Re-assembly
1
4
7
2
Secure Latch
Install Retainer
5
Install Cover
Install Developer Filter
Re-connect Connector
8
Install Slit Glass Cleaning
Pad
3
Align Cover
6
Install Knob
9
Install Ozone Filter
PM Part
PM Part
PM Part
Black
Developer Kit
Only
10
Re-install Unit in Printer
Black
Developer Kit
Only
Step 5 - Adjustment of the Auto-Toner Sensor
When the developer material is replaced, adjust the auto-toner sensor in the following
procedure. If the value of 08-2707 (toner density ratio manual offset control) of the replacing
developer material has been changed from "0" (default), return the sub code value of the
corresponding color to "0".
Important Note:
Remove the toner cartridge for the color developer that has been replaced. If the black developer kit
has been installed REMOVE the black toner cartridge BEFORE performing this adjustment.
If the color developer kit has been installed REMOVE the Magenta, Cyan, and yellow toner
cartridges BEFORE performing this adjustment.
(1) While pressing [0] and [5] simultaneously, turn the Power ON. The following message will be
displayed.
(1)Enter ADJUSTMENT Mode
Enter Service Mode [0]+[5]+[POWER]ON
(2)Authentication screen
If a service password has been registered enter the service password and select “OK”. If a service password
has NOT been registered leave password blank and select “OK”.
(2) Key in the code below for the kit that has been installed and press the [START] button.
BE SURE THAT THE TONER HAS BEEN REMOVED
Code
Codes: 2404 = Developer material K
2406 = Developer material YMC
(3) The message below will be displayed approx. 2 minutes later and the adjustment starts:
During the adjustment, “Current sensor voltage (V)” shown in (B) automatically changes and gradually
approaches to “Target value (V) for adjustment reference voltage” shown in (A).
(4) When the “Current sensor voltage (V)” in (B) is converged and the “Sensor output control value (bit
value)” corresponding to the value for initial developer material is displayed in (C), the adjustment is
completed. When the adjustment is completed, the [OK] button is displayed on the screen.
Notes: The values in (A), (B) and (C) vary with humidity.
(5) Press the [OK] button to store the adjustment result in the memory.
(6) Turn the power OFF and install the toner cartridges.
Step 6 - Performing Image Quality Control
When any of the following parts is replaced, be sure to perform the “Forced performing of image
quality closed-loop control (05-2742)” procedure.
• Photoconductive drum
• Developer material
• Laser optical unit
• Transfer belt
• 1st transfer roller
• Drum cleaning blade
• Needle electrode
• Main charger grid
• Image position aligning sensor
• Image quality sensor
(1)Enter ADJUSTMENT Mode
Enter Service Mode [0]+[5]+[POWER]ON
(2)Authentication screen
If a service password has been registered enter the service password and select “OK”. If a service password
has NOT been registered leave password blank and select “OK”.
Code Item to be adjusted Contents
2742 Forced performing of image quality closedloop control
(3)Key in [2742] and press the [START] button.
Code
(4)“WAIT” is displayed.
(5) When the adjustment finishes normally, the equipment returns to the initial state of Adjustment
Mode.
(6)Turn the power OFF at the main switch.
Step 7 - PM Counter Reset
The procedure outlined below is for resetting the BLACK developer kit. Follow the same procedure when installing the COLOR developer kit for this
printer. DO NOT reset the OZONE FILTER counter when replacing the COLOR KIT as this is only performed with the black developer kit replacement.
(1)Enter PM Support Mode
Enter Service Mode [6]+[START]+[POWER]ON
(2)Authentication screen
If a service password has been registered enter the service password and select “OK”. If a service password
has NOT been registered leave password blank and select “OK”.
Reset for the Black Developer Kit
(1)Highlight the “CLEANER/DRUM/CHARGER (K)” counter and select “RESET”.
This function resets:
•
•
•
•
•
(2)Select “Initialize”.
Once Initialization is complete
you will return to the Home
screen above.
Drum (K)
Drum Blade (K)
Grid (K)
Main Charger Needle (K)
Charger Cleaning Pad (K)
(3)Highlight the “OZONE FILTER REAR” counter and select “RESET”.
(4)Select “Initialize”.
(5)Page down to page 2 of 4 and Highlight the “DEVELOPMENT UNIT” counter and select “SUB UNIT”.
(6)Highlight the “BLACK DEVELOPER” counter and select “RESET’.
(7)Select “Initialize”.
Once Initialization is complete
you will return to the previous
screen above.
(8)Highlight the “DEVELOPER FILTER (K)” counter and select “RESET’.
(9)Select “Initialize”.
(10)To complete turn the main power switch OFF/ON.
The procedure outlined above is for resetting the BLACK developer kit. Follow the same procedure when
installing the COLOR developer kit for this printer. Be sure to reset each color developer and developer filter.
DO NOT reset the OZONE FILTER counter as this is only performed with the black developer kit replacement.