Sharp AR-M280U Imager User manual

This document was been published to faciliate
after sales service only.
The contents are subject to change without notice.
Parts marked with “ “ are important for maintaining the safety of the machine.
Tomaintain the safety and performance of the machine,use only the replacement parts specified.
SHARP CORPORATION
LASER PRINTER
MODEL AR-M280U/M280N
CODE : 00ZARM280UA1E
[1] INTRODUCTION
These models are a modified version of the AR-M350U/M350N, providing a different printing speed.
This Service Manual, therefore, describes only the different points from the AR-M350U/M350N and supplementary items.
For items which are not described in this Service Manual, refer to the following Service Manuals and Parts Guides.
Note:Depending on the option, additional service documentation may be required.
[2] LIST OF DIFFERENCES FROM AR-M350U/N
A.Product composition
*1: Installation of the AR-P14 on U-series machines provides functions equivalent to the M-series machines.
•AR-M350/M450 Service Manual : 00ZARM350/A1E Parts Guide : 00ZARM450/P1E Circuit Diagram : 00ZARM350/C1/
•AR-P350/P450 Service Manual : 00ZARP350/A2E Parts Guide : 00ZAR350LPP1/ Circuit Diagram : 00ZARP350/C1/
•AR-M350U/N•AR-M450U/N Service Manual : 00ZARM350UA1E
•AR-NC5J Service Manual : 00ZARNC5J/A1E
Model Name Network Printer Option Model NIC Standard Model Note
Base Engine AR-M350U AR-M280U AR-M350N AR-M280N
Print Speed 35ppm 28ppm 35ppm 28ppm
Multi Function Controller AR-M11 Not Available Not Available Standard Standard
Multi Function Controller(for U-Model) Standard Standard Not Available Not Available No registered
as a product
Print Server Card AR-NC5J Option Option Standard Standard
Printer Extension Kit AR-P14 Option Option Standard Standard *1
Hardware MFP-ROMOnlyU-type
35/45ppm Only U-type
28ppm Only M-type
35/45ppm Only M-type
28ppm
!


AR-M280U CONFIGURATION 3-1
[3] CONFIGURATION
1.System Configurations
2. Standard
Category Model Name Other options required for the installation/mounting.
(Options must be ordered separately.) Remarks
MFP model (35ppm) AR-M350 •B/W Scanner module/DSPF (AR-EF1)
•Scanner Rack(AR-RK1)
•Stand/MPD&2000 sheet paper drawer (AR-D13) or Three
paper drawer stand (AR-D14)
•Power supply unit (AR-DC1)
MFP model (45ppm) AR-M450
MFP model (28ppm) (Without network printer function) AR-M280U
MFP model (35ppm) (Without network printer function) AR-M350U
MFP model (45ppm) (Without network printer function) AR-M450U
MFP model (28ppm) (With NIC card (standard)) AR-M280N
MFP model (35ppm) (With NIC card (standard)) AR-M350N
MFP model (45ppm) (With NIC card (standard)) AR-M450N
B/W scanner module/DSPF(AR-EF1)
Upper exit tray
extension
(AR-TE4)
Finisher
(AR-FN6)
Mail-bin stacker
(AR-MS1)
Stand/MPD & 2000 sheet
paper drawer
(AR-D13)
Stand/3 x 500 sheet
paper drawer
(AR-D14)
Saddle stitch
finisher
(AR-FN7)
Duplex module
(AR-DU3)
Duplex
module/bypass
tray(AR-DU4)
Exit tray
(AR-TE3 or AR-DU4 Standard)
Power supply unit
(AR-DC1)
!"#$%#&

AR-M280U CONFIGURATION 3-2
3. List of combination of peripheral devices
A.AR-M280U
As shown in the table below, some other peripheral devices ( B ) may be needed for installation of a peripheral device ( A ) and some peripheral devices
cannot be installed together.
Related for scanner feature
Related for paper feed unit
B/W scanner module/DSPF
AR-EF1
AR-RK1
AR-D14
AR-D13
AR-DU4
AR-DU3
AR-FN7
AR-FN6
AR-MS1
AR-TE3
AR-TE4
AR-PN1
AR-PK1
AR-NS2
AR-FX5
AR-MM9
AR-DC1
AR-HD3
AR-M11
AR-NC5J
AR-P14
Scanner rack
Scanner rack
Stand/3 x 500 sheet
paper drawer
Stand/MPD & 2000 sheet
paper drawer
Saddle stitch finisher
Finisher
Mail-bin stacker
Exit tray
Punch unit
PS3 expansion kit
Facsimile expansion kit
Pr
Network printer kit
int server card
Hard disk drive
Power supply unit
Duplex module/bypass tray
Duplex module
Stand/3 x 500 sheet paper drawer
Stand/MPD & 2000 sheet
Duplex module/bypass tray
Duplex module
Upper exit tray extension
Multi-function controller
board
Fax memory (8 MB)
B/W scanner module/DSPF
Saddle stitch finisher
Finisher
Mail-bin stacker
Exit tray
Punch unit
PS3 expansion kit
Facsimile expansion kit
Print server card
Hard disk dr
Network printer kit
ive
Power supply unit
Upper exit tray extension
Multi-function controller board
Fax memory (8 MB)
Network scanner
expansion kit
Network scanner expansion kit
*
1
*
2
*
2
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
2
*
1
*
1
*
1
Output units
Related for extension of
functions and others
= Must be installed together.
= Any of the units must be installed together.
= Must be installed for installation of the stand/3 x 500 sheet paper drawer or
the stand/MPD & 2000 sheet paper drawer.
= Cannot be installed together.
= Standard
= AR-DU4 Standard
= Attachment of the AR-P14 provides the similar functions.
A
B
*4
*5
*6
*3
*4
*5
= Not Available
*6
' !"#$%#&

AR-M280U CONFIGURATION 3-3
B.AR-M280N
As shown in the table below, some other peripheral devices ( B ) may be needed for installation of a peripheral device ( A ) and some peripheral devices
cannot be installed together.
Related for scanner feature
Related for paper feed unit
B/W scanner module/DSPF
AR-EF1
AR-RK1
AR-D14
AR-D13
AR-DU4
AR-DU3
AR-FN7
AR-FN6
AR-MS1
AR-TE3
AR-TE4
AR-PN1
AR-PK1
AR-NS2
AR-FX5
AR-MM9
AR-DC1
AR-HD3
AR-M11
AR-NC5J
AR-P14
Scanner rack
Scanner rack
Stand/3 x 500 sheet
paper drawer
Stand/MPD & 2000 sheet
paper drawer
Saddle stitch finisher
Finisher
Mail-bin stacker
Exit tray
Punch unit
PS3 expansion kit
Facsimile expansion kit
Pr
Network printer kit
int server card
Hard disk drive
Power supply unit
Duplex module/bypass tray
Duplex module
Stand/3 x 500 sheet paper drawer
Stand/MPD & 2000 sheet
Duplex module/bypass tray
Duplex module
Upper exit tray extension
Multi-function controller
board
Fax memory (8 MB)
B/W scanner module/DSPF
Saddle stitch finisher
Finisher
Mail-bin stacker
Exit tray
Punch unit
PS3 expansion kit
Facsimile expansion kit
Print server card
Hard disk dr
Network printer kit
ive
Power supply unit
Upper exit tray extension
Multi-function controller board
Fax memory (8 MB)
Network scanner
expansion kit
Network scanner expansion kit
*
1
*
1
*
1
*
2
*
2
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
2
*
1
*
1
*
1
Output units
Related for extension of
functions and others
= Must be installed together.
= Any of the units must be installed together.
= Must be installed for installation of the stand/3 x 500 sheet paper drawer or
the stand/MPD & 2000 sheet paper drawer.
= Cannot be installed together.
= Standard
= AR-DU4 Standard
= Cannot be attached.
A
B
*4
*3
*3
*6
*3
*4
*6
!"#$%#&

AR-M280U SPECIFICATIONS 4-1
[4] SPECIFICATIONS
1. Basic Specification
A. Base Engine
(1) Form
(2) Engine speed
(3) Engine composition
(4) Engine resolution
(5) Printable area
The print area of this product is shown below.
If a printer driver for Windows or Macintosh is used for printing, the
printable area will be smaller. The actual printable area depends on the
printer driver to be used.
(in mm)
(6) Warm-up
(7) Power source
(8) Power consumption
(9) Energy Star benchmark
(10) Noise
* Showing noise benchmark in each model as a whole system.
(11) Dimensions
*1: With B/W scanner module/DSPF, Scanner rack, Large capacity
paper feed desk, Power supply unit and Upper exit tray extension
AR-M280U/M280N Console type
Paper size AR-M280U/N
A4, 8.5" x 11" 28ppm
A5R/5.5" x 8.5"R 28ppm
B5 28ppm
B4/8.5" x 14 16ppm
A3/11" x 17" 14ppm
Photoconductor type OPC (diameter of photoconductor : ø30mm)
Record method Electrophotograph (laser)
Development method Dry-type dual-component magnetic brush
development
Charge method Charged saw-tooth method
Transfer method Transfer roller
Cleaning method Cleaner blade
Fusing method Heat roller
Used toner disposal Toner recycling system
Resolution Write :600dpi
Smoothing Write :1200dpi equivalent
Gradation Write :2 levels
C
C
E
E
B
D
A
Paper size
Printable area
Paper size A B C D E
A3 297 420 4 289 4
B4 257 364 4 242 4
A4 210 297 4 202 4
B5 182 257 4 168 4
A5 148 210 4 140 4
Japanese postcard 100 148 4 92 4
Ledger 279 432 4 271 4
Legal 216 356 4 208 4
Foolscap 216 330 4 208 4
Letter 216 279 4 208 4
Executive 184 267 4 183 4
Invoice 140 216 4 132 4
Com-10(envelope) 105 241 4 97 4
C5(envelope) 162 229 4 154 4
Monarch(envelope) 98 191 4 90 4
DL(envelope) 110 220 4 102 4
ISO B5(envelope) 176 250 4 168 4
Warm-up time less than 80 seconds
Pre-heat requirement Required
Jam recovery time Target: about 30 seconds
(Under standard condition of 60 seconds left
after side cover opening, polygon motor halt)
Voltage 100V system
100-127V
Frequency 50/60Hz
Max. Power consumption. 1440W(When MFP full system)
Low power mode 30W or below
Transition time to low power mode 30min
At working less than 6.8B
At waiting mode less than 5.0B
External dimensions
(WxDxH) 428x552x469 (Only main unit) (mm)
16.9"x21.7"x18.5"
Occupied space
dimensions
(WxD)
963x685 (mm) *1
25.7"x22.3"
Weight AR-M280U:Approx.38.9kg
(including developing unit/process/
each controller)
Approx.99kg *1
AR-M280N:Approx.39.9kg
(including developing unit/process/
each controller/NIC)
Approx.100kg *1
!"#$%%&

AR-M280U SPECIFICATIONS 4-2
B. Document Feeding Equipment
(1) One-drawer tray (included in the base engine)
C. Output Equipment
(1) Face-down Exit Tray (included in the base engine)
2. Specific Function
A. Printer Function
(1) Platform
* For Macintosh OS, the PS3 expansion kit and NIC card are required.
(2) Support OS
* For Macintosh OS, the PS3 expansion kit and NIC card are required.
(3) PDL emulation
(4) Print Function
a. General
b. Paper input
c. Paper output
d. Graphic
e. Font
Paper feed method One-drawer tray
Sizes to be fed A4, B5, 8.5" x 11"
Paper capacity 500 sheets (at 80g/m²)
Media available for
paper feeding Plain paper 60 - 105g/m², 16 - 28lbs
Paper type Plain, recycled, pre-printed, pre-punched,
color, letter head
Paper size switching To be switched by user
(paper size to be entered from the operation
panel).
Dehumidification
heater Not provided
Balance detection Provided (paper empty and 3 steps)
Default size setting 100V system 200V system
8.5" x 11" A4
Mounting/dismounting
of the tray Provided
Output position/
method Face-down output at the upper side of main
unit
Output paper capacity 400 sheets (80g/m²sheet)
Output paper size A3, B4, A4, A4R, B5, B5R, A5R
11 " x 17", 8.5" x 14", 8.5" x 13", 8.5" x 11 ",
8.5" x 11 "R, 5.5" x 8.5"R
Executive, postal card, Monarch (98 x 191)
Com-10 (105 x 241), DL (110 x 220),
C5 (162 x 229), ISO B5 (176 x 250)
Spec of media for
paper output Tracing paper : 52 ~ 59g/m²/ 14 ~ 15lbs
Plain paper : 60 ~ 128g/m²/ 16 ~ 34lbs
Index paper : 176g/m²/ 47lbs
Cover paper : 205g/m²/ 54 ~ 55lbs
Transparency film
Remaining paper
detection Not provided
Exit tray full detection Provided
IBM PC/AT (Include compatible machine)
Macintosh (680x0), Power Macintosh, iMac, G3Macintosh
Custom PS Windows 95/98/Me/XP
Windows NT 4.0
Windows 2000
Custom
PCL5e/6(XL)
SPDL
Windows 95/98/Me/XP
Windows NT 4.0
Windows 2000
PPD Windows 95/98/Me/XP
Windows NT 4.0
Windows 2000
Mac OS 8.5.1 - Mac OS 9
PCL6, PCL5e compatible,
PostScript Level 2, PostScript 3 compatible
(PS3 expansion kit is required.)
When an optional PS3 expansion kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Copies 1 - 999 1 - 999 1 - 999 1 - 999
Orientation Yes Yes Yes Yes
Duplex print Yes Yes Yes Yes
Saddle stitch Yes Yes No N/A
Binding edge Left/top/
right Left/top/
right Long/short Long/short
N-up 2/4/6/8 2/4/6/8 2/4*3*4 2/4/6/9/16
N-up direction Fixed Fixed Fixed Selectable
N-up border line Yes Yes Yes(always) Yes
When an optional PS3 expansion kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Paper size Yes Yes Yes Yes
Custom paper size 1 size 1 size 3 sizes*3*5 N/A
Source selection Yes Yes Yes Yes
Different first page Yes Yes N/A Yes
Transparency inserts Yes Yes N/A Yes
When an optional PS3 expansion kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Output tray selection Yes Yes Yes Yes
Mail bin Yes Yes Yes Yes
Staple Yes Yes Yes Yes
Offset Yes Yes Yes Yes
Punch Yes Yes Yes Yes
When an optional PS3 expansion kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Resolution 600/300
dpi 600 dpi 600 dpi 600 dpi
Halftone N/A Yes Yes N/A
Graphic mode Yes N/A N/A N/A
Smoothing Yes Yes Yes Yes
Toner save Yes Yes Yes Yes
Photo enhancement Yes*8 Yes N/A N/A
Negative image N/A Yes Yes Yes
Mirror image N/A Horizontal/
vertical Horizontal Yes
Zoom N/A N/A Yes Yes
Fit to page Yes Yes N/A N/A
When an optional PS3 expansion kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Resident font 45 fonts 136 fonts 136 fonts*6 35 fonts
Download font Bitmap
TrueType,
Graphic
Bitmap
Type1
TrueType
Bitmap
Type1
TrueType
N/A
& !"#$%

AR-M280U SPECIFICATIONS 4-3
f. Others
* 1 For models without a hard disk drive, an optional hard disk drive
(AR-HD3) must be installed .
* 2 Functions when peripheral devices are installed.
* 3 Not supported in the Windows NT 4.0 environment.
* 4 2/4/6/9/16 is supported in the Windows 2000 environment.
* 5 Only one size is supported in the Windows 2000 environment.
* 6 Only 35 fonts are supported in the Windows NT 4.0 environment.
* 7 This function is limited for PPD.
* 8 PCL6 only
(5) Compatibility
B. Expanded RAM
Installation of additional RAMwill provide the following:
1) Time out error reduction
2) Spool time reduction
3) Avoidance of Virtual Memory (VM) error / memory full
Use commercially available RAM with the following specifications.
Note: If RAM used does not meet the follow specifications, the copier
may not recognize the additional RAM or its capacity correctly.
<Specification>
<Operation-assured Memory> (As of March / 2001)
C. Scanner function
*Scanner function, the NIC card and Network Scanner kit are required.
(1) Scanner function
(2) Support System
(3) Support Image
(4) Transmission Mode
(5) Image Process
(6) Original Memory
(7) Specified Destination
(8) Specified Multiple Destinations
O : Available
When an optional PS3 expansion
kit is installed
Function PCL5e/
PCL6 PS PPD
(Windows) PPD
(Macintosh)
Watermark*7 Yes Yes Yes Yes
Overlay Yes Yes N/A N/A
Job retention*1 Yes Yes N/A Yes
Account control Yes Yes N/A Yes
Custom settings Yes Yes N/A N/A
Automatic
configuration*2 Yes Yes N/A Yes
Job end notification Yes Yes N/A N/A
PCL 5e
compatibility
Target for PCL5e is to be compatible with HP LaserJet 4000.
Small margin difference, rendering difference by
different font family, default and transfer function
difference are not to be included in the compatibility.
All the PJL commands are not necessarily included in
the compatibility.
PCL6
compatibility
Target for PCL6 is to be compatible with HP LaserJet 4000.
Small margin difference, rendering difference by
different font family, default and transfer function
difference are not to be included in the compatibility.
All the PJL commands are not necessarily included in
the compatibility.
PostScript
Compatibility Roman PostScript is targeted to be compatible with
Adobe PostScript as performed in HP LaserJet 4000.
Small margin difference, rendering difference by
different font family, default and transfer function
difference are not to be included in the compatibility.
DIMM TYPE 168pin 3.3V Unbuffered SDRAM DIMM Non-ECC
DIMM capacity 64MByte, 128MByte, 256MByte
CAS LATENCY CL=2
SDRAM CLOCK For PC100, PC133
SPD Supporting
Parity Not support
ECC Not support
Manufacture Capacity Model name RAM CHIP name Note
Kingston
Technology 128MB
KVR133X64C3/128 HYB39S64800BT-7.5
128MB
KVR133X64C3-128 D456821G-A75-9JF
256MB
KVR133X64C3-256 HY57V28820AT-H
Viking
Components 64MB
VIK8641CL2 µPD456841G5
-A80-9JF
64MB
VIK8641CL2 D456841G5-A80-9JF
128MB
VIK6642CL2 TC59SM708FT-80
128MB
VIK6642CL2 D4564841G5-A80
-9JF
256MB
VIK2642CL2 TC59SM708FT-80
Memory Card
Technology 64MB
DM864VS65804X-
7G GM72V66841XT75
128MB
DM1665VS65804X-
7G HY57V64820HG
Scanner mode Scan to E-mail (Internet FAX)
Scan to Server (Client PC)
Embedded server SMTP server
FTP server
Protocol TCP/IP
Format TIFF, PDF, TIFF-F
* Selectable for each page
Compression method Uncompressed, G3(1-dimension) *1, G4 *2
*1 G3 (1-dimension) = MH (Modified Huffman)
*2 G4 = MMR (Modified MR)
DSPF/OC
transmission switching Available
(Switching during the reading is not possible)
Half tone reproduction Equivalent to 256 levels
Exposure adjustment Light / Auto / Dark
Quality selection Half-tone ON/OFF
Resolution* Normal ( 200x200dpi )
Fine ( 300x300dpi )
Super fine ( 400x400dpi )
Ultra fine ( 600x600dpi )
Varies with the file type/transmission method
Standard Commonly use ERDH area of memory.
Memory expansion Special : As per ERDH memory
Specified destination Specifying by one-touch or group
One-touch* Max. 500 destinations
(in conjunction with the one-touch dial of FAX)
Max. 100 destinations can be registered
for FTP and Desktop.
Group* To be registered in one-touch
Program Available
Specified destination Specifying by one-touch or group
No. of registration Max. 300 items
(in conjunction with those of FAX)
Sequential
broadcasting Available
(E-mail only. It is not available for FTP/Desktop.)
Simultaneous FAX
transmission Available
(SpecifyingmultipledestinationsofFAX,E-mailorFTP
and broadcasting by a single scan)
' !"#$%

AR-M280U SPECIFICATIONS 4-4
(9) Functions
D. Copy function
(1) Copy Speed
* Figures in reduction/enlargement are represented by those at the
ratio to show slowest speed
(2) First Copy Time
Conditions: A4 or 8.5"x11"P from front tray of PPC, without HDD and
with polygon motor running.
*1 During OC/high-speed mode
(3) Job Speed
*1 S S : A4 / 8.5" x 11"P original 5 sheets copy 5sets
*2 S D : A4 / 8.5" x 11"P original 10 sheets copy 5sets
*3 D D : A4 / 8.5" x 11"P original 5 sheets (10 pages) copy 5sets
Note:First copy time has been factored into calculation resulting in
reduced CPM.
(4) Continuous Copy
(5) Copy Ratio
(6) Exposure/Copy Quality Process
(7) Copy Function
Transmitting
functions Rotating transmission Available
(to be matched with FAX
specification)
Long length original
transmission Not Available
Verification stamp function Option
Report/list
functions Transmit/receive record Available
Transmit/receive result Available
Address/phone directory
list Available
Group list Available
ID/sender list Available
Program list Available
Actual Reduction Enlargement
A4, 8.5"x11"
28 28 28
A4R, 8.5"x11"R
20 20 20
A5R, 5.5"x8.5"R,
Invoice-R
28 28 28
B5
28 28 28
B5R, Exective-R
20 20 20
B4, 8.5"x14"
16 16 16
A3, 11"x17"
14 14 14
Extra, Envelope
14 14 14
Japan P/C When printing on post cards, engine speed can vary
with system configuration, because each card is fed
only after the previous card exits machine.
Document glass *1 Less than 5.3 seconds
DSPF Less than 6.0 seconds
S S *1 27 cpm (97%)
S D *2 26 cpm (92%)
D D *3 26 cpm (92%)
Max. multiple number 999 pages
Copy ratio AB series :
25%, 70%, 81%, 86%, 100%, 115%, 122%, 141%, 400%
Inch series :
25%, 64%, 77%, 100%, 121%, 129%, 400%
Zoom 25 - 400%
25 - 200% (Copy from DSPF)
Independent
scaling Not provided
Exposure mode Binary: Text(auto/manual), Text/photo, Photo
256 levels: Not provided
Manual steps 9 steps
Smoothing Standard
Toner save mode Standard
Function APS Standard Function
AMS Standard Function
Paper type select Standard Function
(By type setting)
Auto tray switching Standard Function
Rotation copy Standard Function
Electronic sort Standard Function
Rotation sort Not provided
Reserved copy Standard Function
Prior tray setting Not provided
Recall/register of program Standard Function
Proof copy Not provided
Preheat function Standard Function
(To be set up by key
operator)
Auto power shut-off function Standard Function
(To be set up by the key
operator program)
Account control Standard Function
(100 accounts)
Communication support (RIC) Standard Function
Card counter support Only
provided the connector
Coin vendor support Only
provided the connector
Special
function Margin shift Standard Function
Edge erase / Center erase Standard Function
Dual page copying Standard Function
Covers Not provided
Transparency insert Not provided
Centering Not provided
Multi shot (N in 1) Standard Function
(2 in 1 / 4 in 1)
Pamphlet copy Standard Function
2-sided copy orientation change Standard Function
Large capacity original mode 0 (Max. 140 pages)
B/W reverse Not provided
Shading Not provided
Mirror image Not provided
Repeat Not provided
Date stamp Not provided
Stamp Not provided
Page stamp Not provided
Zaurus print Not provided
!"#$%

AR-M280U CONSUMABLE PARTS 5-1
[5] CONSUMABLE PARTS
1.Supply system table
Note: The consumable parts are the same as those of the AR-M350/M450 series and the AR-P350/P450.
A.USA
*1: For USA
*2: Equivalent to the drum life.
Note1: Print on Master/individual carton:Toner/Developer in 2 languages (English/French), DR in 4 languages (English/French/German/Spanish).
Note2: Packed with machine: DR 80K/Developer UN/Process UN
Note3: The other maintenance parts which are not listed above are registered as service parts.
NO Name Content Life Product name Remark
1 Toner (Black) Toner(Toner : Net Weight 814g) 27K AR-450NT
(*1 AR-450NT-J) *Life setup is based on A4 6%
2 Developer Developer(Developer : Net Weight 450g) 80K AR-450ND
3 Drum Drum x1 80K AR-451DR
4 Maintenance kit 1 Cleaner blade
Drum separation pawl
Screen grid
Toner reception seal
Side molt F
Side molt R
Charging plate
x1
x4
x1
x1
x1
x1
x1
80K *2 AR-450KC1
5 Maintenance kit 2 Transfer roller
Discharging plate
Paper dust removing unit
DV blade
DV side seal F
DV side seal R
x1
x1
x1
x1
x1
x1
80K AR-450KA1
6 Upper heat roller kit Upper heat roller
Fusing separation pawl (Upper) x1
x4 160K AR-450UH
7 Lower heat roller kit Lower heat roller
Fusing separation pawl (Lower) x1
x2 160K AR-450LH
8 Cleaner blade Cleaner blade x10 80K*2(x10) AR-450CB Available in the National Parts
Center
9 Cleaning roller Cleaning roller
Bearing x10
x20 160K(x10) AR-450CR Available in the National Parts
Center
10 Staple cartridge Staple cartridge x3 3000x3 AR-SC1 Common with cartridge for AR-FN4
& AR-FN6
11 Staple cartridge Staple cartridge x3 5000x3 AR-SC2 Common with cartridge for AR-FN7
"# $%&'()

AR-M280U CONSUMABLE PARTS 5-2
2.Production number identification
A. Drum cartridge
The lot number, printed on the front side flange, is composed of 10 digits,
each digit showing the following content:
B. Toner cartridge
The lot number is composed of 7 digits, and each digit indicates as
following.
The lot number shall is printed in the position shown below.
C. Developer
The lot number is composed of 8 digit, and each digit indicates as
following.
The lot number shall be printed on the bag.
3. Environmental conditions
A. Operating conditions
B. Storage conditions
12345678910
1 Number
For this model, this digit is 2.
2 Alphabet
Indicates the model conformity code. S for this model.
(100K/80K drum)
3 Number
Indicates the end digit of the production year.
4 Number or X, Y, Z
Indicates the production month.
X stands for October, Y November, and Z December.
5/6 Number
Indicates the production day on the month.
7 Number or X, Y, Z
Indicates the month of packing.
X stands for October, Y November, and Z December.
8/9 Number
Indicates the day of the month of packing.
10 Alphabet
Indicates the production factory. "A" for Nara Plant.
1234567
1 Version number (A - sequentially revised)
2 Numeral figure
Indicates the end digit of the production year.
3 Alphabet
Indicates the production factory. (B for SOCC)
4 Destination code
5,6 Numeral figures
Indicates the production day.
7 Numeral figure or X, Y, Z
Indicates the production month.
X stands for October, Y November, and Z December.
Lot No. Location
Lot No. Location
Aluminum bag
Heat seal
12345678
1 Alphabet
Indicates the production factory.
2 Figure
Indicates the production year.
3/4 Figure
Indicates the production month.
5/6 Figure
Indicates the production day.
7 Hyphenation
8 Figure
Indicates the production lot.
Temperature
Humidity (%)
85
20
10 35
(Without dew condensation)
30 85%
35 60%
Temperature
Humidity (%)
90
20
-10 40
(Without dew condensation)
* "# $%&'()

AR-M280U CONSUMABLE PARTS 5-3
4.Different point of 50K drum and 80K drum
50K drum 80K drum
1 Marking No mark on Flange White paint mark on rear side of Flange
2 Lot number 2 digit : [ T ] 2 digit : [ S ]
3 Flange assembly direction Painting upper limit : F side Painting upper limit : R side
4 Color band on Drum Green Silver
White paint mark
100k (80k) drum
Silver
50k drum
Green
+ "# $%&'()

AR-M280U UNPACKING AND INSTALLATION 6-1
[6] UNPACKING AND INSTALLATION
1. Installing procedure flowchart
There are many combinations between this machine and option units. For installing option units, observe the following procedures for efficiency.
To install the devices efficiently, follow the procedure below.
Some peripheral devices may have been installed as standard devices depending on the main unit model.
Part of descriptions and illustrations may be different.
* When installing an option, refer to the Service Manual for that option and or the AR-M350 / M450 Service Manual.
Scanner/document feeder device
Main unit Main unit
Finishing device
Finishing device
Duplex/bypass device
Finishing device
Paper feeding deviceDuplex device Paper feeding device
Scanner/document feeder device
Start of installation
End
AR-D13 /AR-DC1
AR-D14 /AR-DC1
Main unit
*
AR-EF1 /AR-RK1
AR-HD3
AR-FX5/AR-MM9
AR-PK1
AR-NS2
AR-NC5J
(Not required for the AR-M350N/M450N)
AR-P14
(Only AR-M350U/M450U)
Extended memory
AR-D13/AR-D14/
AR-DU3/AR-DU4
AR-DU3
AR-DU4
AR-MS1/AR-DC1
AR-FN6 /AR-DC1
AR-FN7
AR-PN1A / B / C / D
No
Yes
Duplex/bypass
device installed?
No
No
No
Finishing device
installed?
Scanner/document
feeder installed?
Yes
Yes
Yes
Controller board,
facsimile unit or other
electric devices
installed?
When installing a paper feeding device, an optional power supply unit or a duplex/bypass device, be
sure to re-attach the rear cabinet, the AC inlet cover, and the harness cover of the main unit at the
end of installation as needed.
When installing a controller board, a facsimile unit, and other electric devices, be sure to install them
one at a time.
Only off center adjustment is needed for AR-DU3.
Install controller board,
facsimile unit or other electric
devices.
2)
Paper guide position adjustment/off center adjustment
1) Installation of driver software, setting,
and operation check
Main unit/AR-EF1/AR-NC5J/AR-HD3/
AR-FX5/AR-PK1/AR-NS2/AR-P14
[Electrical setting/adjustment]
Main unit, paper feeding
device, and power supply
unit.
Install duplex / bypass device.
Install finishing device.
Install scanner/document feeder.
"# $%&'()

AR-M280U UNPACKING AND INSTALLATION 6-2
2. AR-P14 installing procedure
<Before installation>
* This installation procedure is provided for use with the
AR-M280U / M280N and AR-M350U / M450U series.
* To connect this machine to a network, a Print Server Card (NIC) AR-
NC5J must be installed to the multi-function controller board in
advance.
* To enable the printer expansion function, the product key must be
acquired.
The application number, machine serial number, and product key
number are important information.
Keep the above information for future reference.
1) Mount the printer expansion kit ROMs to the control PWB.
<1>Turn off the main switch of the main unit of the printer
Turn the main switch located on the front side of the main unit to the
"OFF" position.
If the machine is equipped with a facsimile unit, also turn off the FAX
power switch.
Then remove the power plug from the outlet.
.
<2>Remove the cables connected to the control PWB unit.
Remove all the cables connected to the control PWB unit of the main unit
of the printer.
<3>Remove the control PWB unit.
Remove the five screws that fix the control PWB unit to the main unit of
the printer.
Then, hold the two grips and pull out the control PWB unit to remove it
from the main unit.
<4>Mount the printer expansion kit ROMs(2 pcs.)to the control PWB.
Remove the ROMs(main and boot ROMs)from the control PWB and
replace them with the two ROMs(main and boot ROMs)of the printer
expansion kit.
The main and boot ROMs are indicated with "MAIN" and "BOOT" on the
labels on the ROMs respectively.
When mounting the printer expansion kit ROMs, insert them to the same
positions in the same direction as those before replacement and ensure
that the inserted printer expansion kit ROMs are locked with the fittings
of the sockets.
<5>Re-attach the control PWB.
Attach the control PWB to the main unit of the printer and fix it using five
screws.
"# $%&&'&(

AR-M280U UNPACKING AND INSTALLATION 6-3
<6>Connect the cables to the control PWB.
Connect all the cables that have been removed in <2> to the original
positions of the control PWB unit.
If another peripheral device must be installed, carry out the
following steps at the end of the installation work.
2) Turn on the main switch of the main unit of the printer.
Insert the power plug of the main unit of the printer to the outlet.
Then, turn the main switch located on the front side of the main unit to
the "ON" position.
If the machine is equipped with a facsimile unit, turn on the FAX power
switch.
3) Prepare to enable the printer expansion function.
To enable the printer expansion function, use the keys on the operation
panel to enter the product key.
For entry of the product key, see the key operator's guide of the operation
manual for the main unit.
Carry out the network setting for the Print Server Card.
Use a key operator program to carry out the network setting for this
machine. For this network setting, the customer's network environment
must be checked. Consult the network administrator to carry out the
setting.
In addition to the network setting for this machine, to use the
machine in the network environment:
According to the customer's network environment, install the driver
software from the CD-ROM supplied with this machine and use the utility
software supplied with the Print Server Card to set the network printer for
the server computer.
For installation in the server computer and network setting, see the
operation manual supplied with the main unit.
This setting must be carried out by the network administrator or based on
consultation with the network administrator.
4) To check the operation of the printer expansion function.
When the network settings and the driver settings are complete, perform
a test print to check if printing can be performed successfully.
(When test printing is completed successfully, use the "list print" key
operator program to print the network settings and keep the printout for
future reference.)
Installation of AR-P14 is now complete.
+ "# $%&'()

AR-M280U MAINTENANCE 7-1
[7] MAINTENANCE
1. Self print of set values
Use SIM 22-6 to print the set values (machine settings) and jam history.
These values must be printed before execution of maintenance or disassembly procedures.
2. Maintenance System Table
The maintenance items and positions are the same as those of the AR-M350 series. However, the maintenance cycle differs.
A. Scanner / DSPF Maintenance cycle : 80K
Note 1: Replacement reference: Same as above or 2 years.
X Check (Clean, replace, or adjust as necessary.) O Clean Replace Adjust Lubricate Move position
Unit name Part name When
calling 80k 160k 240k 320k Remark
Optical section Mirror/Lens/Reflector/Sensors O OOOO
Tableglass/OC OOOOO
White reference sheet O OOOO
Rails
Drivebelt/Drivewire/Pulley XXXX
DSPF Paper feed section Take-up roller O Note 1
Separation pad O Note 1
Paper feed roller O Note 1
TransportsectionPSroller OOOOO
Exposure section
(Dust-proof glass) OOOOO
Paper exit section Paper feed roller SPF O OOOO
Other Sensors OOOOForcleaning,blowair.
Finish stamp section
[Option]
(Japan only)
Stamp solenoid
Stamp individual part XXXXX
User replacement
at 10K or 1 year.

AR-M280U MAINTENANCE 7-2
B. Engine section
* For disassembly procedures, refer to the AR-P350/P450 Service Manual. Maintenance cycle : 80K
Note 2: Replacement reference: Use the counter value of each paper feed port as the replacement reference.
Paper feed roller/Torque limiter section: 80K or 2 years
O Check (Clean, replace, or adjust as necessary.) X Clean Replace Adjust Lubricate Move position
Unit name Part name When
calling 80k 160k 240k 320k Remark
Drum peripheral Drum Installed when shipping
Cleaner blade
Toner reception seal
Side molt
Transfer roller X
Discharge plate X
TR bearing (F/R) X X X
After-transfer star ring X X X
TR gear X X X
Screen grid (O)X
Drum separation pawl UN
Chargercase(M/C) OOOO
Charging plate
(saw teeth) (O)X
Developing section Developer Supplied when installing
DV blade
DSDcollar OOOO
DV side seal F
DV side seal R
Toner cartridge Attached when installing./
EX Japan: 814g,
user replacement for every 27K.
Fusing section Upper heat roller O O
Lower heat roller O O
Upper separation pawl X X
Lower separation pawl X X
Thermistor XXXXClean and remove paper dust.
Upper heat roller gear X X
Paper guides O OOOO
Gears
Cleaning roller X X
CL roller collar
Filters Ozone filter
Paper feed section Paper feed roller O XXXXNote2
Torque limiter X XXXXNote2
Transport section
Paper exit reverse section PSfollowerroller OOOOO
Transportrollers OOOOO
Transport paper guides O OOOO
Paper dust remover
Drive section Gears (Specified position)
Belts X
Image quality X XXXX
Other Sensors XXXX
!

AR-M280U MAINTENANCE 7-3
C. Peripheral devices Maintenance cycle : 80K
Note 3: Replacement reference: Use the counter value of each paper feed port as the replacement reference
Paper feed roller / Torque limiter section: 80K or 2 years
O Check (Clean, replace, or adjust as necessary.) X Clean Replace Adjust Lubricate Move position
Option name Part name When
calling 80k 160k 240k 320k Remark
ADU
+ Manual feed Paper feed
separation section Paper feed
rollers (O)XXXXX
Note 3
Separationpad(O)XXXXXNote3
Torque limiter (O)X XXXXNote3
TransportsectionTransportrollersOOOOO
Transport paper
guides OOOOO
Drive section Gears (Specified position)
Belts X
Other Sensors XXXXX
Desk
(Multi stage LCC)
Multi purpose
Paper feed
separation section Paper feed
rollers (O)XXXXX
Note 3
Torque limiter (O)X XXXXNote3
TransportsectionTransportrollerOOOOO
Transport paper
guides OOOOO
Drive section Gears (Specified position)
Belts X
Other Sensors XXXXX
Finisher TransportsectionTransportrollersOOOOO
De-curlerroller(O)XXXXX
Transport paper
guides OOOOO
Drive section Gears (Specified position)
Belts X
Other Sensors XXXXX
DischargebrushXXXXX
Staple unit Replace Unit
at 100K staple.
Staple cartridge User replacement
for every 3000pcs.
Mail-bin
stacker TransportsectionTransportrollerOOOOO
Transport paper
guides OOOOO
Drive section Gears (Specified position)
Belts X
Other Sensors XXXXX
DischargebrushXXXXX
Saddle finisher Transport section Transport roller O OOOO
Transport paper
guides OOOOO
Drive section Gears (Specified position)
Belts X
Other Sensors XXXXX
DischargebrushXXXXX
Staple Unit Replace Unit at 100K staple
(including the staple UN and
the holder section).
Staple cartridge User replacement
for every 5000 pcs.
"

AR-M280U ADJUSTMENTS 8-1
[8] ADJUSTMENTS
1. Process section
A. High voltage output adjustment
(1) Developing bias output check and setup
1) Remove the rear cabinet to allow checking of the high voltage
monitor output pin.
2) Execute the simulation of the target high voltage.
(See the table below.)
3) Select the mode to be set with 10-key, and press START key.
4) Enter the set value with 10-key and press START key. The set value
is outputted for 30 sec.
5) Apply a high voltage tester between the measurement pin and the
frame.
Note:Take care not to short the measuring pin to the frame.
6) The unit stops after 30 sec of output.
2. Engine section
A. Resist quantity setup
•This adjustment requires a high level of accuracy.
We recommend using the default setting.
This adjustment is performed in the following cases:
•When the void quantity is changed by the paper feed tray.
•When paper is skewed.
Complete the following adjustments before performing resist quantity
setup.
•LSU right angle adjustment
•Print magnification ratio adjustment
•Print off-center setup
•Void area setup
1) Execute SIM 51-2.
2) Adjust the resist quantity so that paper transport is stable.
<Factory setup value>
Default Set range Measurement
pin High voltage
probe
impedance
Monitor output
voltage Set value
MC grid MAIN GRID
(SIM 8-2) AUTO AE mode -650V±5V 645 200~900 CN2-7 100MΩ
CHARACTER Text mode -650V±5V 645 200~900
MIX Text/Photo
mode -650V±5V 645 200~900
PHOTO Photo mode -650V±5V 645 200~900
PRINTER Printer mode -650V±5V 645 200~900
FAX Fax mode -650V±5V 645 200~900
Transfer current THV+
(SIM 8-6) FRONT Front 45PPM : 267
28/35PPM : 220 0~620
BACK Back 45PPM : 310
28/35PPM : 267 0~620
Developing bias DV BIAS
(SIM 8-1) AUTO AE mode -500V±5V 485 0~745 CN2-1 100MΩ
CHARACTER Text mode -500V±5V 485 0~745
MIX Text/Photo
mode -500V±5V 485 0~745
PHOTO Photo mode -500V±5V 485 0~745
PRINTER Printer mode -500V±5V 485 0~745
FAX Fax mode -500V±5V 485 0~745
PLUS Positive bias +150V±5V 150 0~255
Separation voltage SHV
(SIM 8-17) FRONT Front +1.25V±0.1V 45PPM : 160
28/35PPM : 120 0~375 CN2-3 10MΩ
BACK Rear +1.25V±0.1V 45PPM : 160
28/35PPM : 120 0~375
Transfer voltage THV
(SIM 8-17) -800V±10V 780 0~1250 CN2-5 10GΩ
45PPM BPT 55
T1 60
T2 50
DESK 50
ADU 50
28/35PPM BPT 60
T1 65
T2 55
DESK 55
ADU 55
!"#$%

AR-M280U SIMULATIONS 9-1
[9] SIMULATION
The following simulations have been changed.
<List of display value>
<List of set values>
<List of set values>
Main code 8
8-6
Purpose Adjustment
Function (Content) Used to check and adjust the transfer charger
current and its control circuit.
Section Process
(OPC drum, developing, transfer, cleaning)
Item
Operation/Procedure Enter the output value to be adjusted with
10 digit key pad. The current set value is
highlighted at the right of each item.
After entering the value with 10 digit key pad,
press START key.
The output is made for 30sec at the set value.
Then the output is stopped.
Default Set range
1 Cassette/manual paper feed 45PPM 267 0 ~ 620
28/35PPM 220
2 Paper feed from ADU 45PPM 310
28/35PPM 267
1
SIMULATION 8-6
THV+SETTING. INPUT VALUE, AND PRESS START.
1. FRONT(0-620) 140
SIMULATION 8-6
THV+SETTING. EXECUTING...
1. FRONT 140
SIMULATION 8-6
THV+SETTING. SELECT 1-2, AND PRESS START.
1. FRONT 140
2. BACK 140
Or after 30sec output
Press [START] key. Press [CUSTOM SETTING] key.
Press [START] key. Press [CUSTOM SETTING] key.
8-17
Purpose Operation test, check
Function (Content) Used to set and check the transfer roller output.
Section Process
(OPC drum, developing, transfer, cleaning)
Item Operation
Operation/Procedure Enter the output value to be adjusted with
10 digit key pad. The current set value is
highlighted at the right of each item.
After entering the value with 10 digit key pad,
press START key.
The output is made for 30sec at the set value.
Then the output is stopped.
Default Set range
1 SHV front surface 160(45PPM)
120(28/35PPM) 0 ~ 375
2 SHV back surface
3 THV-output 780 0 ~1250
Main code 21
21-1
Purpose Setup
Function (Content) Used to set the maintenance cycle.
Section
Item Spec
Operation/Procedure Used to set the maintenance cycle in an SRU
machine.
0 Maintenance display at the cycle of each control spec.
1 Maintenance display at 5K
2 Maintenance display at 10K
3 Maintenance display at 25K
4 Maintenance display at 50K
5 Maintenance display at 80K
6 No maintenance display
7 Maintenance display at 100K
8 Maintenance display at 20K
9 Maintenance display at 40K
1
SIMULATION 8-17
TRANSFER ROLLER SETTING. INPUT VALUE, AND PRESS START.
1. FRONT (0-375) 500
SIMULATION 8-17
TRANSFER ROLLER SETTING. EXECUTING...
1. FRONT (0-375) 500
SIMULATION 8-17
TRANSFER ROLLER SETTING. SELECT 1-3, AND PRESS START.
1. SHV FRONT 500
2. SHV BACK 500
3. THV- 500
Or after 30sec output
Press [START] key. Press [CUSTOM SETTING] key.
Press [START] key. Press [CUSTOM SETTING] key.
SIMULATION 21-1
MAINTENANCE CYCLE SETUP. SELECT 0-6, AND PRESS START.
0. DEFAULT 1. 5K 2. 10K 3. 25K
4. 50K 5. 80K 6.FREE 7. 100K 8. 20K 9. 40K 1
!"#$%&
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