AR-C250 (serv.man38). Introduction of AR-DW1N New Type Developer. — Sharp Copying Equipment Technical Bulletin (repair manual)

Model
AR-C250 (serv.man38)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
187.51 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Copying Equipment / Introduction of AR-DW1N New Type Developer.
File
ar-c250-sm38.pdf
Date

View Sharp AR-C250 (serv.man38) Technical Bulletin online

GMA051202
Sharp Electronics (UK) Ltd., Technical Services Group
Model:
AR-C160, AR-C250
Description:
In preparation for the launch of the AR-C270, the image quality specification of both
AR-C160 & AR-C250 models have been enhanced to that of the new AR-C270.
To identify these enhanced models, the product code has changed :-
Previous
     New
AR-C160
AR-C160N
AR-C250
AR-C250N
Image Quality
To improve image quality on these models, we have Introduced a new Developer Unit,
new Developer and updated Engine Firmware.
Developer Unit(s)
The magnetic roller has been changed to a new type, with increased magnetic force. To
identify the new type unit, the resistance value for each DV unit (DV check detection) has
also been changed.
The new type Developer Units (and developer) can be visibly identified by the “N” mark on
the top of the unit as shown
Cont’d
INTRODUCTION OF AR-DW1N &
NEW TYPE DEVELOPER
TECHNICAL BULLETIN
Date:
5
th
 December ‘02
Model: AR-C250
Ref.:
050
Colour: White
Page:
1 of 5
GMA051202
Sharp Electronics (UK) Ltd., Technical Services Group
Note:
Do not install the new type Developer Unit(s) unless the Engine Firmware has been updated
(refer to the firmware revision table within this bulletin).
Failure to upgrade the engine firmware will result in a “DV Check CMYK” error.
Developer
The coating material and particle size for the new type developer has been changed from approx. 8um to
6um, to increase magnetic roller coverage and “tribo-electric” charge.
To identify the new type Developer, the product code has changed.
Supplies
Model
Current
New Type
Black Developer
AR-C150, AR-C250
AR-C15LD1
(40K)
AR-C18LD1
(40K)
Black Developer
AR-C160
AR-C16LD1
(80K)
AR-C18LD1
(80K)
Colour Developer Kit
AR-C150, AR-C160, AR-C250
AR-C15LD9
(40K)
AR-C17LD9
(40K)
Black Developer
AR-C270
N/A
AR-C18LD1
(80K)
Colour Developer Kit
AR-C270
N/A
AR-C17LD9
(40K)
Starter Kit (s)
AR-C150,AR-C250
AR-C160
AR-C25SK1
AR-C16SK1
AR-C18SK1
Developer Unit Kit
AR-DW1
AR-DW1N
Note:
For AR-C150/250 models, the life of AR-C18LD1 is still 40k.
The “Old Type” Developer and Developer Unit will continue to be available for existing AR-C150,160 &
250 models which have not been updated with this image quality enhancement modification.
Engine Firmware
Because the resistance value of each DV unit has changed, the engine firmware has been updated to
automatically detect whether AR-DW1 or AR-DW1N are installed.
Once the Developer Unit type has been detected, the correct toner correction “look up” table is referenced for
either old or new type developer.
The Developer Unit Type can be viewed using Test Simulation 44-43 (after DV cycle):-
Type 0  = AR-DW1
Type 1  = AR-DW1N
Cont’d
GMA051202
Sharp Electronics (UK) Ltd., Technical Services Group
Firmware Revision
AR-C150
AR-C160
AR-C250
Current
New
Current
New
Current
New
ICU
6.01
6.01
3.05
3.06
4.02
4.02
PCU
6.02a
6.02c
3.06
3.08
4.03
4.05
PCU Sub
5.05
5.05
3.01
3.01
3.01
3.01
OPE
6.00
6.00
3.01
3.03
4.01
4.01
Please note that the enhancements are effective, only when new Developer, Developer Units
and Engine Firmware have been installed/upgraded.
If the wrong combination is used (old type DV unit and new type Developer), it will not be
effective and will cause copy quality problems (DV particles will attach to the drum).
Please refer to the following Compatibility Table:-
Current Developer
New Developer
Condition
Black
Colour
Black
Colour
AR-C15LD1
AR-C16LD1
AR-C15LD9
AR-C18LD1
AR-C17LD9
Current Firmware &
AR-C150
AR-C250
X
X
X
AR-DW1 installed
AR-C160
X
X
X
Upgraded Firmware
AR-C150
AR-C250
X
X
X
AR-DW1
 installed
AR-C160
X
X
X
Upgraded Firmware
AR-C150
AR-C250
NG
X
NG
AR-DW1N
installed
AR-C160
AR-C270
X
NG
X
Compatible and OK to Install.
NG
Toner spatter/dusting may be experienced (not recommended).
X
Not compatible – DO NOT USE OR INSTALL.
All existing AR-C150, AR-C160 & AR-C250 models can be modified to the same image quality level as the
new AR-C270 by installing new type Developer Units, Developer and Engine Firmware.
Please refer to the following installation procedure:-
Installation Procedure
1.
Enter Test Simulations 8 –01 and 8-02 and confirm that both DV Bias and Main Charge Grid
Bias output voltages are set to their default values, as shown below.
Developing Bias Voltage – Sim 8-01 (All Models)
Colour
Sim 8-01 Adjustment Value
K
A
325
C
B
325
M
C
325
Y
D
325
Cont’d
GMA051202
Sharp Electronics (UK) Ltd., Technical Services Group
MC Grid Bias Voltage – Sim 8-02.
Sim 8-02
Adjustment
Value
AR-C150
AR-C160
AR-C250
K
A
525
565
545
C
B
525
555
545
M
C
525
555
545
Y
D
525
555
545
2. 
Upgrade the Engine Firmware to the new version(s) :-
Firmware
AR-C150
AR-C160
AR-C250
ICU
6.01
3.06
4.02
PCU
6.02c
3.08
4.05
PCU-Sub
5.05
3.01
3.01
OPE
6.00
3.03
4.01
(Instructions on how to upgrade engine firmware can be found either on the Sharp Technical
Website 
http://www.tradenet.sharp.co.uk/tech
 or within the “Colour Handy Guide 1”).
3. 
Remove the existing Developer Units (AR-DW1) and install the New Type Units (AR-DW1N).
4. 
Install the New Type Developer :-
Black   
K
AR-C18LD1
Colour  
CMY
AR-C17LD9.
5. 
Set the Developer Level (CMYK) using Test Simulation 25-02 (cycle twice).
Note
The stored DV level when using the New Type Developer will be lower
(approx 20 points) than the previous levels, when using the Old Type Developer.
6.
Reset ALL Developer counters using Test Simulation 24-05.
Cont’d
Page of 5
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