Sharp AR-M355U User manual

Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SERVICE MANUAL
CONTENTS
CODE: 00ZARM455UA1E
DIGITAL MULTIFUNCTIONAL
SYSTEM
AR-M351U/M451U
MODEL
AR-M355U/M455U
[1] GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[4] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES . . . . . . . . . . 5-1
[6] UNPACKING AND INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] MAINTENANCE AND DETAILS OF EACH SECTION . . . . . . . . . . 7-1
[8] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] MACHINE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
[11] TROUBLE CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
[12] ROM VERSION-UP METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
[13] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

CAUTION
Cautions on laser
Wave length 785 nm +10 nm
−15 nm
Pulse times North America:
35 cpm model: (6.2 µs ± 6.2 ns)/7 mm
45 cpm model: (4.8 µs ± 4.8 ns)/7 mm
Europe:
35 cpm model: (6.2 µs ± 6.2 ns)/7 mm
45 cpm model: (4.8 µs ± 4.8 ns)/7 mm
Output power 0.2 mW - 0.4 mW
At the production line, the output power of the scanner unit
is adjusted to 0.4 MILLIWATT PLUS 8 % and is maintained
constant by the operation of the Automatic Power Control (APC).
Caution
This product contains a low power laser device. To ensure
safety do not remove any cover or attempt to gain access
to the inside of the product. Refer all servicing to qualified
personnel.
For Europe:
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
CAUTION
INVISIBLE LASER RADIATION
WHEN OPEN INTERLOCKS
DEFEATED. AVOID EXPOSURE
TO BEAM.
VORSICHT
UNSICHTBARE
LASERSTRAHLUNG WENN
ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM
STRAHL AUSSETZEN.
ADVARSEL
USYNLIG LASERSTRÅLNING
VED ÅBNING, NÅR
SIKKERHEDSBRYDERE ER
UDE AF FUNKTION. UNDGÅ
UDSAETTELSE FOR
STRÅLNING.
VAROITUS!
LAITTEEN KÄYTTÄMINEN
MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA
MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN
TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE
NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE.
VARNING
OM APPARATEN ANVÄNDS PÅ
ANNAT SÄTT ÄN I DENNA
BRUKSANVISNING
SPECIFICERATS, KAN
ANVÄNDAREN UTSÄTTAS FÖR
OSYNLIG LASERSTRÅLNING,
SOM ÖVERSKRIDER GRÄNSEN
FÖR LASERKLASS 1.
For North America:
SAFETY PRECAUTIONS
This Digital Equipment is rated Class 1 and complies with 21 CFR 1040.10 and 1040.11 of the
CDRH standards.This means that the equipment does not produce hazardous laser radiation.For
your safety, observe the precautions below.
●Do not remove the cabinet, operation panel or any other covers.
●The equipment's exterior covers contain several safety interlock switches. Do not bypass any
safety interlock by inserting wedges or other items into switch slots.
Caution
Use of controls or adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
CLASS 1
LASER PRODUCT
LASER KLASSE 1
CAUTION
VORSICHT
ADVARSEL
ADVERSEL
VARNING
VARO!
INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
Laserstrahl
UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.
USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER
UDE AF FUNKTION. UNDGÅUDSAETTELSE FOR STRÅLNING.
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES.
UNNGÅEKSPONERING FOR STRÅLEN.
OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR
URKOPPLADE. STRÅLEN ÄR FARLIG. BETRAKTA EJ STRÅLEN.
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTÖNTÄ
LASERSÄTEILYLLE. ÄLÄKATSO SÄTEESEEN.

CONTENTS
[1] GENERAL
1. Note for servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
A. Cautions for servicing . . . . . . . . . . . . . . . . . . . . . .1-1
[2] CONFIGURATION
1. System configuration . . . . . . . . . . . . . . . . . . . . . . . . .2-1
A. Basic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
B. Option lineup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
C. List of combination of peripheral devices . . . . . . .2-4
[3] SPECIFICATIONS
1. Basic Specification . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
A. Base Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
B. Document Feeding Equipment . . . . . . . . . . . . . . .3-2
C. Output Equipment . . . . . . . . . . . . . . . . . . . . . . . . .3-2
2. Specific Function . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
A. Printer Function . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
B. Image send function . . . . . . . . . . . . . . . . . . . . . . .3-5
C. Copy function . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
3. B/W Scanner Module (DSPF). . . . . . . . . . . . . . . . . . .3-8
4. Rack for Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
[4] CONSUMABLE PARTS
1. Supply system table . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
A. European Subsidiary/East Europe/Russia/
Australia/New Zealand . . . . . . . . . . . . . . . . . . . . .4-1
B. Taiwan (Aurora). . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
C. Asia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
D. Middle East/Africa/Israel/Philippines . . . . . . . . . . .4-1
E. Hong Kong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
F. China. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
2. Maintenance parts list. . . . . . . . . . . . . . . . . . . . . . . . .4-2
A. Europe/Australia/New Zealand/Taiwan . . . . . . . . .4-2
B. Agency/Asia/Middle East/Africa/
Latin America . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
C. Hong Kong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
D. China. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
2. Production number identification . . . . . . . . . . . . . . . .4-4
A. Drum cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
B. Toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
C. Developer cartridge . . . . . . . . . . . . . . . . . . . . . . . .4-4
3. Environmental conditions . . . . . . . . . . . . . . . . . . . . . .4-4
A. Operating conditions . . . . . . . . . . . . . . . . . . . . . . .4-4
B. Storage conditions. . . . . . . . . . . . . . . . . . . . . . . . .4-4
[5] EXTERNAL VIEWS AND INTERNAL STRUCTURES
1. Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
2. Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
3. Operation panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
4. Job status screen (common to print, copy, fax,
network scan and Internet fax) . . . . . . . . . . . . . . . . . 5-4
5. Cross sectional view . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
A. Scanner unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
6. Switch, Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
A. Scanner unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
7. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
A. Scanner unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
8. Motor, Clutch, Solenoid . . . . . . . . . . . . . . . . . . . . . . . 5-8
A. Scanner unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
B. Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
[6] UNPACKING AND INSTALLATION
1. Installing procedure flowchart . . . . . . . . . . . . . . . . . . 6-1
2. Note for installation place . . . . . . . . . . . . . . . . . . . . . 6-2
3. Unpacking procedure . . . . . . . . . . . . . . . . . . . . . . . . 6-2
A. AR-M355U/M455U (North America),
AR-M351U/M451U (Europe) . . . . . . . . . . . . . . . . 6-2
B. AR-M351U/M451U (Except for Europe) . . . . . . . 6-2
4. Remove the locking tape
(AR-M355U/M455U (North America),
AR-M351U/M451U (Europe)) . . . . . . . . . . . . . . . . . . 6-3
5. Unpacking and installation of the desk unit . . . . . . . . 6-3
A. AR-D28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
B. AR-D27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
C. AR-MU2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6. Unpacking and installation of the rack (AR-RK2)
(Except for North America/Europe) . . . . . . . . . . . . . . 6-9
7. Unpacking and installation of the AR-EF3
(Except for North America/Europe) . . . . . . . . . . . . . 6-10
8. Machine installing procedure. . . . . . . . . . . . . . . . . . 6-11
A. Setting related to process . . . . . . . . . . . . . . . . . 6-11
B. Toner cartridge settings . . . . . . . . . . . . . . . . . . . 6-11
C. Setting related to fusing . . . . . . . . . . . . . . . . . . . 6-12
D. Paper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
9. Automatic developer adjustment . . . . . . . . . . . . . . . 6-12
10. Print test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
11. Distortion adjustment
(Except for North America/Europe) . . . . . . . . . . . . . 6-13
12. Attach the document scanning label . . . . . . . . . . . . 6-13
13. Key sheet attachment . . . . . . . . . . . . . . . . . . . . . . . 6-13
14. Adjuster installation and adjustment . . . . . . . . . . . . 6-14
15. Using the transport handle . . . . . . . . . . . . . . . . . . . 6-14

[7] MAINTENANCE AND DETAILS OF EACH SECTION
[Maintenance System Table] . . . . . . . . . . . . . . . . . . . . . . .7-1
1. Engine section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
2. Scanner / DSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
3. Peripheral devices . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
[DETAILS OF EACH SECTION] . . . . . . . . . . . . . . . . . . . .7-4
1. Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4
[OPC drum section] . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
[Transfer section] . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11
[Developing section] . . . . . . . . . . . . . . . . . . . . . . . . .7-16
2. Fusing section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-21
3. Paper feed section . . . . . . . . . . . . . . . . . . . . . . . . . .7-26
4. Transport section/Paper exit reverse section . . . . . .7-33
5. Laser scanner section. . . . . . . . . . . . . . . . . . . . . . . .7-43
6. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-46
7. DSPF section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-54
8. Operation panel section . . . . . . . . . . . . . . . . . . . . . .7-62
9. Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-66
10. Drive section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-67
11. Power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-69
12. PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-72
13. Fan motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-74
[8] ADJUSTMENTS
1. Process section . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
A. Doctor gap adjustment . . . . . . . . . . . . . . . . . . . . .8-1
B. MG roller main pole position adjustment . . . . . . . .8-1
C. High voltage output adjustment. . . . . . . . . . . . . . .8-2
2. Image check, adjustment . . . . . . . . . . . . . . . . . . . . . .8-3
A. Adjustments on the engine side . . . . . . . . . . . . . .8-3
B. Adjustment on the scanner side . . . . . . . . . . . . . .8-6
3. Scanner section . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10
A. OC scan distortion adjustment
(MB-B rail height adjustment) . . . . . . . . . . . . . . .8-10
B. Vertical image distortion balance
adjustment (Copy lamp unit installing
position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11
C. Vertical image distortion balance adjustment
(No. 2/3 mirror base unit installing and
position adjustment) . . . . . . . . . . . . . . . . . . . . . .8-11
D. Vertical (sub scanning direction) distortion
adjustment [Winding pulley position
adjustment] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11
E. Height adjustment of original detection light
emitting unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12
F. Original size detection photo sensor check. . . . .8-12
G. Original size detection photo sensor
adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12
H. Image density adjustment . . . . . . . . . . . . . . . . . .8-13
I. DSPF width detection adjustment . . . . . . . . . . . .8-17
[9] SIMULATION
1. Outline and purpose . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
2. Code-type simulation. . . . . . . . . . . . . . . . . . . . . . . . . 9-1
A. Operating procedures and operations . . . . . . . . . 9-1
B. Simulation list. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
C. Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
3. Other related items . . . . . . . . . . . . . . . . . . . . . . . . . 9-87
[10] MACHINE OPERATION
1. Acceptable originals . . . . . . . . . . . . . . . . . . . . . . . . 10-1
A. Size and weight of acceptable originals. . . . . . . 10-1
B. Total number of originals that can be set
in the document feeder tray . . . . . . . . . . . . . . . . 10-1
2. Standard original placement orientations . . . . . . . . 10-1
3. Automatic copy image rotation -
rotation copying. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
4. Specifications of paper trays . . . . . . . . . . . . . . . . . . 10-2
A. Applicable plain paper . . . . . . . . . . . . . . . . . . . . 10-2
B. Applicable special paper . . . . . . . . . . . . . . . . . . 10-3
5. Printing onto envelopes. . . . . . . . . . . . . . . . . . . . . . 10-3
A. Fusing unit pressure adjusting levers . . . . . . . . 10-3
[11] TROUBLE CODES
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
2. Trouble codes list . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
3. Details of trouble codes. . . . . . . . . . . . . . . . . . . . . . 11-3
4. Other related items . . . . . . . . . . . . . . . . . . . . . . . . 11-14
[12] ROM VERSION-UP METHOD
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
2. Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
3. Flash ROM update procedures . . . . . . . . . . . . . . . . 12-1
A. Preliminary arrangement . . . . . . . . . . . . . . . . . . 12-1
B. Update procedure 1 (Writing with each ROM
inserted to the specified slot) . . . . . . . . . . . . . . . 12-2
C. Update procedures 2 (Writing to each ROM
by use of CN6 of the controller PWB) . . . . . . . . 12-2
D. In case of “Result: NG”. . . . . . . . . . . . . . . . . . . 12-3
E. Turning off the power during update . . . . . . . . . 12-3
F. Update window display in normal booting . . . . . 12-3
G. Update process flow . . . . . . . . . . . . . . . . . . . . . 12-3
[13] ELECTRICAL SECTION
1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
2. Actual wiring chart . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
3. Signal name list . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-19

AR-M351U/M451U, AR-M355U/M455U GENERAL 1 - 1
[1] GENERAL
1. Note for servicing
Pictogram
This Service Manual uses some pictographs to assure safe opera-
tion.
Please understand the meanings of pictographs before servicing.
CAUTION: If this CAUTION is ignored, an injury or damage to
property could occur.
A. Cautions for servicing
1) Do not touch the photoconductive drum. Scratches or
smudges on the drum will cause dirty printouts.
2) The fusing unit is extremely hot. Exercise care in this area.
3) Do not look directly at the light source of the scanner module.
Doing so may damage your eyes.
4) Five adjusters are provided on all optional stand/paper drawer
units. These adjusters should be lowered until they contact the
floor.
5) Do not make any modifications to this machine. Doing so may
result in personal injury or damage to the machine.
6) Since this machine is heavy, it is recommended that it be
moved by more than one person to prevent injury.
7) When connecting this machine to a computer, be sure to first
turn both the computer and the machine off.
8) Do not print anything which is prohibited from printing by law.
The following items are normally prohibited from printing by
national law. Other items may be prohibited by local law.
•Money
•Stamps
•Bonds
•Stocks
•Bank drafts
•Checks
•Passports
•Driver's licenses
9) Do not throw toner or a toner cartridge into fire. Toner may be
spattered, causing a burn.
10) Store toner or toner cartridges in a hard-to-reach place for chil-
dren.
Fusing unit
Lock Release
Adjuster

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 1
[2] CONFIGURATION
1. System configuration
A. Basic system
* To install the AR-MU2, the exclusive-use desk is required.
AR-M351U/M451U
(Copier/Printer model)
AR-M355U/M455U
(Copier model)
Necessary options
•Any one of the stand/MPD & 2000 sheet paper drawer (AR-D28), the stand/3 x 500 sheet paper drawer (AR-D27), or the multi purpose
drawer (AR-MU2)*
•Any one of the upper exit tray extension (AR-TE4), the finisher (AR-FN6), the mail-bin stacker (AR-MS1), or the right upper exit tray
(AR-TE5)
•AR-EF3
•AR-RK2

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 2
B. Option lineup
For combinations of options, refer to "C. List of combination of peripheral devices" described later.
(1) Major options
13. Fax expansion kit
(AR-FX12)
5. Upper exit tray
(AR-TE4) 11. Finisher
(AR-FN6)
12. Mail-bin stacker
(AR-MS1)
2. Stand/MPD & 2000 sheet
paper drawer
(AR-D28)
4. Multi purpose drawer
(AR-MU2)
3. Stand/3 x 500 sheet
paper drawer
(AR-D27)
10. Saddle stitch
finisher
(AR-FN7)
9. Duplex module
(AR-DU3)
8. Duplex
module/bypass tray
(AR-DU4)
7. Exit tray
(AR-TE3)
6. Right upper exit
tray (AR-TE5)
1. Scanner module with DSPF
(AR-EF3)

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 3
(2) Other options
❍: Installable ✕: Not available
No. Option item Installing conditions
1 Scanner module with DSPF AR-EF3
2 Stand/MPD & 2000 sheet paper drawer AR-D28 •Simultaneous installation with the large capacity paper feed
desk (AR-D28) or the 3-stage paper feed desk (AR-D27) is
inhibited.
3 Stand/3 x 500 sheet paper drawer AR-D27
4 Multi purpose drawer AR-MU2
5 Upper exit tray AR-TE4 •Required when the finisher (AR-FN6) or the mail-bin stacker
(AR-MS1) is not installed.
6 Right upper exit tray AR-TE5
7 Exit tray AR-TE3 •Required when the duplex module (AR-DU3) is installed and
the saddle stitch finisher (AR-FN7) is not installed.
8 Duplex module/bypass tray AR-DU4 •Any one of the multi purpose drawer (AR-MU2), the stand/3 x
500 sheet paper drawer (AR-D27), or the stand/MPD & 2000
sheet paper drawer (AR-D28) is required.
•The duplex module/bypass tray (AR-DU4) cannot be installed
with the exit tray (AR-TE3) or the saddle stitch finisher (AR-
FN7).
•When the duplex module (AR-DU3) is installed, the exit tray
(AR-TE3) or the saddle stitch finisher (AR-FN7) is required.
9 Duplex module AR-DU3
10 Saddle stitch finisher AR-FN7 •Simultaneous installation with the finisher (AR-FN6) is
inhibited.
•The duplex module (AR-DU3) is required.
•The stand/3 x 500 sheet paper drawer (AR-D27) or the stand/
MPD & 2000 sheet paper drawer (AR-D28) is required.
11 Finisher AR-FN6 •Simultaneous installation with the saddle finisher (AR-FN7) is
inhibited.
•Any one of the multi paper drawer (AR-MU2), the stand/3 x
500 sheet paper drawer (AR-D27), or the stand/MPD & 2000
sheet paper drawer (AR-D28) is required.
12 Mail-bin stacker AR-MS1 •Any one of the multi paper drawer (AR-MU2), the stand/3 x
500 sheet paper drawer (AR-D27), or the stand/MPD & 2000
sheet paper drawer (AR-D28) is required.
13 Fax expansion kit AR-FX12 •The stand/3 x 500 sheet paper drawer (AR-D27), or the stand/
MPD & 2000 sheet paper drawer (AR-D28) is required.
Option item
Main unit
Installing conditions
AR-M351U/
M451U
AR-M355U/
M455U
Paper exit unit Punch unit AR-PN1 ❍❍For saddle stitch finisher (AR-FN7)
Function
expansion
options
Printer expansion kit AR-P20 ✕❍
Printer expansion kit (with HDD) AR-P21 ✕❍
Printer server card AR-NC7 ❍✕
Printer server card (with HDD) AR-NC8 ❍✕
PS3 expansion kit AR-PK6 ❍❍
Network scanner expansion kit AR-NS3 ❍❍
Sharpdesk 1 license kit AR-U11M ❍❍For network scanner expansion kit
(AR-NS3)
Sharpdesk 5 license kit AR-U15M ❍❍
Sharpdesk 50 license kit AR-U1AM ❍❍
Sharpdesk 100 license kit AR-U1BM ❍❍
Data security kit AR-FR22/FR22U ❍❍
Data security kit AR-FR21/FR21U ❍❍ When the AR-P21 or the AR-NC8
is installed.
Bar code font AR-PF1 ❍❍
Flash ROM kit AR-PF2 ❍❍ Cannot be installed together with
the AR-P21 or the AR-NC8.
FAX-related
option
Fax memory (8 MB) AR-MM9 ❍❍ For fax expansion kit (AR-FX12)

AR-M351U/M451U, AR-M355U/M455U CONFIGURATION 2 - 4
C. List of combination of peripheral devices
As shown in the table below, some other peripheral devices (B) may be needed for installation of a peripheral device (A) and some periph-
eral devices cannot be installed together.
Related to paper feed unit
AR-MU2
AR-D27
AR-D28
AR-DU4
AR-DU3
AR-FN7
AR-FN6
AR-MS1
AR-TE3
AR-TE4
AR-PN1
AR-PK6
AR-NS3
AR-FX12
AR-MM9
AR-PF1
AR-FR22
Multi purpose drawer
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
Bar code font
Duple
Scanner module with DSPF AR-EF3
x module/bypass tray
Duplex module
Multi purpose drawer Stand/3 x 500 sheet paper drawer Stand/MPD & 2000 sheet Duplex module/bypass tray Duplex module
Upper e
AR-TE5Right upper exit tray
xit tray
Data security kit
AR-FR22U Data security kit
AR-FR21 Data security kit
AR-FR21U Data security kit
Fax memory (8 MB)
Saddle stitch finisher Finisher Mail-bin stacker Exit tray Punch unit Bar code font Data security kit (AR-FR22) Data security kit (AR-FR22U) Data security kit (AR-FR21) Data security kit (AR-FR21U) PS3 e Right upper exit tray
xpansion kit
Facsimile expansion kit Upper exit tray Fax memory (8 MB)
Network scanner expansion kit
Network scanner expansion kit
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
Output units
Related to extension of
functions and others
= Must be installed together.
= Any of the units must be installed together.
= Cannot be installed together.
A
B
Flash ROM kit AR-PF2
Printer expansion kit
Printer expansion kit (with HDD)
Print server card
Print server card (with HDD)
AR-P20
AR-P21
AR-NC7
AR-NC8
Scanner module with DSPF
Flash ROM kit
Printer expansion kit Printer expansion kit (with HDD) Print server card Print server card (with HDD)
*
1
*
1

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 1
[3] SPECIFICATIONS
1. Basic Specification
A. Base Engine
(1) Form
(2) Engine speed
* Paper feed from Manual bypass tray
(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
Console type
Paper size AR-M351U/
M355U
AR-M451U/
M455U
A4, 8.5" x 11" 35ppm (31ppm*) 45ppm (40ppm*)
A4R, 8.5" x 11"R 25ppm 30ppm
A5R/5.5" x 8.5"R, Invoice-R 35ppm 45ppm
B5 35ppm 45ppm
B5R, Executive-R 25ppm 30ppm
B4/8.5" x 14" 20ppm 22ppm
A3/11" x 17" 17ppm 20ppm
8K 17ppm 20ppm
16K 35ppm 45ppm
Photoconductor type OPC
(diameter of photoconductor : ø30mm)
Record method Electro-photograph (laser)
Development method Dry-type dual-component magnetic
brush development
Charge method Charged saw-tooth method
Transfer method Transfer roller
Cleaning method Counter blade
Fusing method Heat roller
Resolution Read: 600dpi
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 200V system
100-127V 220-240V
Frequency 50/60Hz
Power cord Inlet type
AR-M351U/
M355U
AR-M451U/
M455U
Max. Power
consumption
Except for Taiwan 1440W 1440W
Taiwan 1550W 1550W
200V 1850W 1850W
AR-M351U/M355U AR-M451U/M455U
Low power mode 184.75W 223.25W
Recovery time from
low power mode
Max. 30 sec. Max. 30 sec.
(Recommendation)
Sleep mode Less than 80W Less than 95W
Transition time to
sleep mode
60 min. 60 min.
At working less than 6.8dB
At waiting mode less than 5.0dB
External dimensions
(W x D x H)
37.9" x 26.2" x 44.4"
(963 mm x 665 mm x 1127 mm)
(including automatic document feeder)
Occupied space
dimensions
(W x D)
37.9" x 26.2" (963 x 665 mm)
(Include automatic document feeder)
Weight Engine: Approx. 85.8 lb (38.9 kg)
Desk: Approx. 72.6 lb (32.9 kg)
Rack: Approx. 16 lb (7.4 kg)
DSPF: Approx. 46 lb (21 kg)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 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
To enable the printer function of the AR-M355U/M455U, the
printer expansion kit must be installed.
(1) Platform
(2) Support OS
(3) PDL emulation
(4) Windows driver function
a. General
*1: For printing, PS driver bundled with the Windows is required.
*2: Since the function is of PS driver bundled with Windows, spec-
ification may vary according to the OS.
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
8.5" x 11"
Mounting/demounting
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, Japanese post card,
Monarch (98 x 191), 8K, 16K, 16KR
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 firm
Remaining paper
detection
Not provided
Exit tray full detection Provided
IBM PC/AT (Include compatible machine)
Macintosh
Custom PS Windows 95/98/Me
Windows NT 4.0 (Service Pack5 or later)
Windows Server 2003
Windows 2000 Server
Windows 2000
Windows XP
Custom
PCL5e/6(XL)
Windows 95/98/Me
Windows NT 4.0 (Service Pack5 or later)
Windows Server 2003
Windows 2000 Server
Windows 2000
Windows XP
PPD Windows 95/98/Me
Windows NT 4.0 (Service Pack5 or later)
Windows Server 2003
Windows 2000 Server
Windows 2000
Windows XP
MacOS 8.6 - 9.2.2, 10.1.5, 10.2 - 10.2.8
(except for Mac OS 10.2.2), 10.3-10.3.3
PCL6 compatible, PCL5e compatible, PostScript 3 compatible
Function PCL5e PCL6 PS PPD file *1
(for Windows XP)
Copies 1-999
Orientation Portrait
Landscape
Portrait
Landscape-A
Landscape-B
(*2)
Duplex 1-sided
2-sided
(Left /top/ right
binding)
1-sided
2-sided
(Long / short
binding)
(*2)
Booklet Invoice on Letter
Letter on Ledger
A5 on A4
A4 on A3
B5 on B4
Letter on Letter
Ledger on Ledger
A4 on A4
A3 on A3
B4 on B4
Yes
(2up booklet only)
(*2)
Binding edge Left / top / right –
N-up 2/4/6/8/9/16 2 / 4 / 6 / 9 / 16
(*2)
N-up order Z / Reversed Z /
N / Reversed N
Z (*2)
N-up border Yes / No Always Yes (*2)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 3
b. Paper Input
*1: For printing, PS driver bundled with the Windows is required.
c. Paper Output
*1: For printing, PS driver bundled with the Windows is required.
d. Graphic
*1: For printing, PS driver bundled with the Windows is required.
*2: Since the function is of PS driver bundled with Windows, spec-
ification may vary according to the OS.
e. Font
*1: For printing, PS driver bundled with the Windows is required.
*2: Since the function is of PS driver bundled with Windows, spec-
ification may vary according to the OS.
f. Others
Function PCL5e PCL6 PS PPD file *1
(for Windows XP)
Paper size A3 / B4 / A4 / B5 /
A5 / Ledger /
Legal / Foolscap /
Letter / Executive
/Invoice/8k / 16k
/COM10/C5/
Monarch/DL
Paper type Plain
Letter Head
Pre-Print
Pre-Punch
Recycle
Color
Label
Heavy Paper
Transparency
Envelope
Custom
paper type
7 type –
Source
selection
Automatic
Tray 1/2/3/4
Bypass-tray
Cover Yes/No
User can select from
1-sided/2-sided/
No print
–
Insert page Yes/No
User can select from
1-sided/2-sided/
No print
–
Transparency
inserts
No
Yes (Blank)
Yes (Printed)
–
Function PCL5e PCL6 PS PPD file *1
(for Windows XP)
Output tray
selection
Center tray
Finisher
•Top tray
•Offset tray
Saddle Stitch
Finisher
•Offset tray
Mailbin stacker
•Mailbin top tray
•Mailbin (1-7)
Duplex module
•Left tray
Staple Finisher
•No staple
•1 staple
•2 staples
Saddle Stitch
Finisher
•No staple
•1 staple
•2 staples
Saddle Stitch
Finisher
•No staple
•1 staple
•2 staples
Offset cancel Yes/No
Function PCL5e PCL6 PS
PPD file *1
(for Windows
XP)
Resolution
setting
600/300 dpi 600dpi 600dpi
Halftone
setting
–No Screen frequency
8.0 to 360.0
in 0.1 steps
Screen angle
0.0 to 360.0
in 0.1 steps
–
Graphics
mode
Raster
HP-GL2
Raster
Vector
––
Smoothing Yes/No
Toner save Yes / No
Photo
enhancement
–Yes/No ––
Negative
image
––Yes / No
Mirror image ––Horizontal
Vertical
Horizontal
(*2)
Zoom ––25-400%
(XY zoom)
1-1000%
(*2)
Fit to page Yes / No –
Function PCL5e PCL6 PS PPD file *1
(for Windows XP)
Download
font
Bitmap
TrueType
Bitmap
Type1
TrueType
Auto
Outline
Bitmap
Native TrueType
(*2)
Function PCL5e PCL6 PS PPD file *1
(for Windows XP)
Configuration
setting
Yes
Watermark Yes Yes
(functionality is
limited)
Line width
setting
–
Form overlay Yes –
Print hold Yes –
Confidential print Yes –
Sample print Yes –
Print accounting Yes –
Quick sets Yes –
Auto
configuration
Yes –
Job end
notification
Yes –
Tandem print Yes
(The AR-P20/P21 or the AR-NC7/NC8 is
required.)
Carbon print Yes –
Multi-
enlargement
–
XY zoom –Yes –

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 4
*1: For printing, PS driver bundled with the Windows is required.
(5) Macintosh driver functions
a. General
*1: Since the function is of PS driver bundled with Macintosh,
specification may vary according to the OS.
b. Paper input
*1: Since the function is of PS driver bundled with Macintosh,
specification may vary according to the OS.
c. Paper output
d. Graphic
*1: Since the function is of PS driver bundled with Macintosh,
specification may vary according to the OS.
e. Font
Cover insert +
pamphlet
Yes –
Document filing Yes
(The AR-P21 or the AR-
NC8 is required.)
–
Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Copies 1-999
Orientation Portrait
Landscape-A
Landscape-B (*1)
Duplex 1-sided
2-sided
Pamphlet
(Right /left /top binding)
Booklet Yes
N-up 2/4/6/9/16 (*1)
N-up order Z / reversed Z / N / reversed N (*1)
N-up border None / Single hairline / Single thin line /
Double hairline / Double thin line (*1)
Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Paper size A3 / B4 / A4 / B5 / A5 /
Japanese Postcard /
Ledger / Legal / Foolscap / Letter /
Executive / Invoice/ 8K / 16K/
COM10/C5/Monarch/DL
Paper type Plain / Letter Head / Pre-Print /
Pre-Punch / Recycle / Color /
Label / Heavy Paper / Transparency /
Envelope
Custom paper
type
7
Source selection Automatic
Tray 1/2/3/4
Bypass-tray
Different 1st
page
Yes / No (*1)
Cover / insert
page
–
(On OS9, user can select from: No/First
Page/Last Page)
(*1)
Transparency
inserts
No
Yes (Blank)
Yes (Printed)
Function PCL5e PCL6 PS PPD file *1
(for Windows XP) Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Output tray
selection
Center tray
Finisher
•Top tray
•Offset tray
Saddle Stitch Finisher
•Offset tray
Mailbin stacker
•Mailbin top tray
•Mailbin (1-7)
Duplex module
•Left tray
Staple Finisher
•No staple
•1 staple
•2 staples
Saddle Stitch Finisher
•No staple
•1 staple
•2 staples
Offset Yes/No
Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Resolution
setting
600dpi
Halftone setting –
Graphics mode –
Smoothing Yes/No
Toner save Yes / No
Photo
enhancement
Yes/No
Negative image –
Mirror image –
Zoom 1-100000 (*1)
Fit to page –
Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Download font –
(Selectable only on MacOS9.x.x -
LaserWriter) (*1)

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 5
f. Others
*1: Since the function is of PS driver bundled with Macintosh,
specification may vary according to the OS.
(6) Compatibility
B. Image send function
(1) Mode
Scanner (Scan to E-mail, Scan to Sharpdesk, Scan to FTP, Scan
to HDD *), FAX, Internet FAX *
*: The HDD (AR-P21 or AR-NC8) is required.
(2) Support system
(3) Support image
(4) Image process
(5) Specified destination
*1: When HDD is installed.
Function Macintosh PPD file
(for Mac OS X ver10.2.8)
Configuration setting Yes
Watermark Yes
Form overlay –
Print hold Yes
Confidential print Yes
(PIN selection)
Sample print Yes
Print accounting Yes
Quick sets –
Auto configuration –(OS9: Yes)
Job end notification –
Tandem print Yes
(The AR-P20/P21 or the AR-NC7/
NC8 is required. (option))
Carbon print –
Multi-enlargement –
XY zoom –
Cover insert + pamphlet –
Document filing Yes (*1)
(Only when the AR-P21 or the AR-
NC8 is installed. (option))
PCL 5e
compatibility
Target for PCL5e is to be compatible with HP
LaserJet 4050.
Small margin difference, rendering difference
by different font family, default and transfer
function difference is 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 4050.
Small margin difference, rendering difference
by different font family, default and transfer
function difference is not to be included in the
compatibility.
All the PJL commands are not necessarily
included in the compatibility.
PostScript
Compatibility
PostScript is targeted to be compatible with
Adobe PostScript as performed in HP LaserJet
4050.
Small margin difference, rendering difference
by different font family, default and transfer
function difference is not to be included in the
compatibility.
Mode Scanner Internet FAX FAX
Supported
server
SMTP server
FTP server
POP server
SMTP server
ESMTP server
–
Mode Scanner Internet
FAX FAX
Format TIFF, PDF TIFF-F,
TIFF-FX
–
Compression
method
Uncompressed,
G3 (1-dimension) *1,
G4 *3
*1 G3 (1-dimension) = MH
(Modified Huffman)
*3 G4 = MMR (Modified
MR)
MH, MMR MH, MR,
MMR,
JBIG
Mode Scanner Internet FAX FAX
Half tone
reproduction
Equivalent to 256 levels
Exposure
adjustment
Auto + 5 steps
Quality
selection
Half-tone ON/OFF (It's not effective for the
following resolution with *.)
Resolution
(Varies with
the file type/
transmission
method)
200 x 200dpi * 200 x 100dpi * Normal (203.2 x
97.8dpi) *
300 x 300dpi 200 x 200dpi Small letter
(203.2 x
195.6dpi)
400 x 400dpi 200 x 400dpi Fine (203.2 x
391dpi)
600 x 600dpi 400 x 400dpi Extra fine (406.4
x 391dpi)
–600 x 600dpi –
Mode Scanner Internet FAX FAX
LDAP Yes (Also can be stored in one-touch address.)
Specified
destination
Specifying by one-touch or group, manual
destination entry
One-touch
keys (Max.
number of keys
to be stored.)
Max. 500 (999 *1) destinations
In this, FTP and Desktop are 100 (200 *1)
destinations.
Group* To be registered from one-touch and manual
destination entry 300 (500 *1)
Program Yes (8 programs)
Manual
destination
entry
Soft Keyboard Input via the
numeric
keys, # key and *
key.
Chain dialing
(Manual
destination
entry)
–Up to 64-digit
with pause
key
Resend This is used to recall the last destination.
Speed dialing This is used to recall address control number by
using numeric keys.

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 6
(6) Specified multiple destinations
*1: When HDD is installed.
* Manual destination entry: Entry other than One-touch, using
numeric keys or soft keyboard.
* In the case of broadcast transmission including fax destina-
tion, the resolution level for fax mode is applied.
* In the case of broadcast transmission with Internet FAX and
Scanner destinations, the resolution level of Internet FAX
mode is applied.
* In the case of broadcast transmission, the compression format
set with the key operator programs is applied.
(7) Functions
*1: When HDD is installed.
Mode Scanner Internet FAX FAX
Specified
destination
Specifying by one-touch or group, manual
destination entry.
Max. number
of Manual
destination
entry*
Total of 100 (5000 *1) destinations including
group and relay broadcast.
Sequential
broadcasting
Yes (E-mail only. It is not
available for
FTP/Desktop.)
Yes
Simultaneous
FAX
transmission
–Yes
Mode Scanner Internet
FAX FAX
Transmit
function
Memory transmit –
Data is sent
by memory
transmit
when upper
limit is set.
Yes
On-hook –Yes
Quick online
transmit
–Yes
Direct transmit –At on-hook
only
Auto reduction
transmit
–Yes: A3 →B4,
A3 →A4,
B4 →A4
Rotation transmit Yes
Scaling transmit Yes (Scaling from regular size to regular
size only.
Some functions does not allow rotation
transmit)
Re-call
mode
Error –Yes
Busy ––Yes
No. of times/interval is set via key operator
program.
Book original
transmit
Yes
Long length
original transmit
Yes Yes Yes
Max. 800mm
Specified pages
per file
Yes –
Maximum number
of send data
Yes –
Sender name Max.500 (999 *1) destinations
Mode Scanner Internet
FAX FAX
Receive
function
Auto receive –Yes
Manual receive –Yes
Memory receive –Yes
Reduction receive
for standard size
–Yes
Scaling receive for
specified size
–
Rotation receive –Yes
Divided receive –Yes: To be defined by key
operator program
Duplex receive –Yes: To be defined by key
operator program
2 in 1 receive –
Address/Domain-
specified reception
is enabled.
–Yes 50
address
–
Address/Domain-
specified reception
is disabled.
–Yes 50
address
Only the
specified
number
External phone
connection
–Yes
Answering phone
connection
–No
Transfer function
at output trouble
–Yes
Auto startup mode –Yes
Special
function
Time setting Yes
Transmit request –Yes
Remote transmit –Yes
Cover function –No
Print at sender –Yes –
Page division Yes
Page combination No
Confidential
(machine at the
other end)
–Yes (F code
method)
Transmit
broadcast
direction
–Yes (F code
method)
Transmit message –
Edge erase Yes
Center erase Yes
2 in 1 Yes
Card shot Yes
Report/
List
function
Transmit/receive
record
Yes
Transmit/receive
result
No Yes
Address/phone
directory list
Yes
Group list Yes
ID/Sender's
address list)
–
Sender list Print
administrator
address.
No
Described in the key
operation list
Confidential box
check list
–Yes
(Integrated to
the memory
box list)
Transmit group list –Yes
(Integrated to
the memory
box list)
Program list Yes
Reserved transmit
list
–
Memory box list –Yes (FAX
mode only)
Memory clear
notice list
–
(It's possible that this is output in case of
errors.)
Others PC-facsimile
transmission
–PC-iFAX PC-FAX

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 7
(8) Transmission method
(9) Record size
(10) F code transmission
C. 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" from front tray of PPC, with polygon
motor running.
*1: During OC mode
(3) Job speed
(4) Continuous copy
(5) Copy Ratio
(6) Exposure/Copy Quality Process
(7) Copy Function
Mode Scanner Internet FAX FAX
Transmission time –2 seconds (level:
Super G3/JBIG)
6 seconds (G3
ECM)
Modem speed –33.6kbps →
2.4kbps
automatic fallback
Intercommunication –Super G3/G3
Communication line –General
telephone line
(PSTN), Private
branch
exchange(PBX),
FAX line
ECM –Yes
Mode Scanner Internet FAX FAX
Max. record
width
293mm
Record size –A3-A5,
11" x 17"-
5.5" x 8.5"
A3-A5,
11" x 17"-
5.5" x 8.5"
Mode Scanner Internet FAX FAX
Sub address –Yes
Passcode –Yes
AR-M351U/M355U AR-M451U/M455U
Actual Reduction Enlargement Actual Reduction Enlargement
A4,
8.5" x 11"
35 35 35 45 45 45
A4R,
8.5" x 11"R
25 25 25 30 30 30
A5R,
5.5" x 8.5"R,
Invoice-R
35 35 35 45 45 45
B5 35 35 35 45 45 45
B5R,
Executive-R
25 25 25 30 30 30
B4,
8.5" x 14"
20 20 20 22 22 22
A3,
11" x 17"
17 17 17 20 20 20
Extra,
Envelope
17 17 17 20 20 20
AR-M351U/M355U AR-M451U/M455U
Document glass *1 Less than 4.9
seconds
Less than 4.4
seconds
DSPF Less than 6.0
seconds
Less than 5.3
seconds
AR-M351U/M355U AR-M451U/M455U
S→S *1 33 cpm (94%) 42 cpm (93%)
S→D *2 32 cpm (91%) 40 cpm (88%)
D→D *3 32 cpm (91%) 40 cpm (88%)
*1: S
→
S : A4 / 8.5" x 11" original 5 sheets copy 5sets
*2: S
→
D : A4 / 8.5" x 11" original 10 sheets copy 5sets
*3: D
→
D : A4 / 8.5" x 11" original 5 sheets (10 pages) copy 5sets
Max. multiple number 999 pages
Copy ratio AB series :
25%, 50%, 70%, 81%, 86%, 100%, 115%, 122%,
141%, 200%, 400%
Inch series :
25%, 50%, 64%, 77%, 100%, 121%, 129%, 200%,
400%
Zoom 25 - 400%
25 - 200% (Copy from DSPF)
Independent
scaling
4
Exposure mode Binary: Text(auto/manual), Text/photo, Photo
256 levels: Not provided
Manual steps 9 steps
Toner save mode Yes (Except for U.K.), Default: OFF
Function APS Yes
AMS Yes
XY zoom Yes
Paper type select Yes (By type setting)
Auto tray switching Yes
Rotation copy Yes
Electronic sort Yes
Rotation sort No
Reserved copy Yes
Prior tray setting No
Recall/register of program Yes
Document filing Yes
(The AR-P21 or the AR-
NC8 is required.)
Proof copy No
Preheat function Yes (To be set up by the
key operator program)
Auto power shut-off
function
Yes (To be set up by the
key operator program)
Account control Yes 500 accounts
Process control Yes
Tandem copy Yes (via network)
(The AR-P20/P21 or the
AR-NC7/NC8 is required.)
Tab copy No
Book copy Yes
Irregular original size input Yes
Irregular paper size input Yes

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 8
Yes: Standard Function
No: Not provided
3. B/W Scanner Module (DSPF)
(1) Form
(2) Resolution / Gradation
(3) Document Glass
Special
function
Margin shift Yes
Edge erase/Center erase Yes
Dual page copying Yes
Covers/Inserts Yes
Transparency insert Yes
Centering No
Multi shot (Nin1) Yes (2 in 1 / 4 in 1)
(Centering: Yes)
Card shot Yes
Pamphlet copy Yes (Centering: Yes)
2-sided copy orientation
change
Yes
Job build Yes (max.10000 sheets)
Negative image Yes
Shading No
Mirror image Yes
Multi-page enlargement No
Repeat No
Date stamp Yes
Stamp Yes
Character stamp Yes
Page stamp Yes
Scanner (Document glass) / DSPF standard
Operation panel integral type
(common hardware for all the destinations)
Reading resolution (dpi)
Copy mode
Magnification 25 - 99 100 101 - 200 201 - 400 –
OC 600x600 600x600 600x600 600x600 –
OC
(High speed):
Text/Auto
600x600 600x600 600x600 600x600 –
OC
(High speed):
Others
600x600 600x300 600x600 600x600 –
DSPF/SPF
(standard)
600x300 600x300 600x600 - –
DSPF/SPF
(high quality)
600x600 600x600 600x600 - –
Input and transmitting resolution (dpi)
FAX transmit mode and scanner/fax multicasting mode
Selection
mode
Standard Fine Super fine Ultra fine 600dpi
sending
Input
resolution: OC
600 x391.2 600x391.2 600x391.2 600x391.2 –
Input
resolution:
DSPF
600x300 600x300 600x300 600x300 –
Transmitting
resolution
203.2x97.8 203.2x195.6 203.2x391 406.4x391 –
Internet-FAX
Transmitting
resolution
200x100 200x200 200x400 400x400 600x600
Scanner mode
Selection
mode
Standard Fine Super fine Ultra fine –
Input
resolution: OC
600x391.2 600x391.2 600x391.2 600x600 –
Input
resolution:
DSPF
600x300 600x300 600x300 600x300 –
Transmitting
resolution
200x200 300x300 400x400 600x600 –
Reading level
256 tones
Exposure lamp
Electrodeless xenon lamp
Output level
Binary
Reading area 297 x 431.8 (mm)
11.7" x 17"
Original
alignment
Left edge / Rear corner alignment
Original size
detection
Provided
(Standard size only)
Sizes to be
detected
Automatic (one detection unit to be used with
software modification by destination)
Inch-1 11" x 17", 8.5" x 14",
8.5" x 11", 8.5" x 11"R,
5.5" x 8.5"
Inch-2 11" x 17", 8.5" x 13",
8.5" x 11", 8.5" x 11"R,
5.5" x 8.5"
AB-1 A3, B4, A4, A4R, B5, B5R, A5
AB-2 A3, A4, A4R, A5, B5, B5R,
216 x 330 mm
AB-3 8K, A4, A4R, A5, B4, 16K,
16KR

AR-M351U/M451U, AR-M355U/M455U SPECIFICATIONS 3 - 9
(4) DSPF/SPF
(5) Power Source
(6) Dimensions
(7) Display device at scanner part
(8) Key
* For printer
(9) Touch sense method
(10) Used character in the LCD
4. Rack for Scanner
(1) Dimensions
OR guide
display
Rear left side
(Print display)
Original reference position " "
Left side OR
guide
(Print display)
(From the Interior side)
5-1/2, A5R, B5R, A4R/A5,
8.5", B4R/B5, 11", A3R/A4
Interior side OR
guide
(Print display)
(From the left side)
5-1/2, A5, B5, A4/A5R, 8-1/2,
B5R, 11", A4R, 13", 14", B4R,
A3R, 17"
Interior side OR
guide
Book marks are at A4 and
8-1/2 positions.
The position available to attach the staple
position guide label when the optional finisher
(desktop console type) is equipped.
Type DSPF One-scan-dual-side scanning
method DSPF with OC
integrated
Scan speed Standard mode 45 opm
High quality mode 22.5 opm
Original
alignment
Center alignment
Original size A3, B4, A4, A4R, B5, B5R, A5, A5R
11"x17", 8.5"x14", 8.5"x13", 8.5"x11", 8.5"x11"R,
5.5"x8.5", 5.5"x8.5"R, 8K, 16K, 16KR
(Long size original up to 800mm in FAX, e-mail and
iFAX mode)
Original
paper
weight
50~128g/m², 15~34lbs
Original
stack
capacity
Max. 50 sheets
(Max. 30 sheets for A3, B4,11" x 17",8.5" x 14")
(Max. 15 sheets for A3, B4, 11" x 17", 8.5" x 14"
over 105g/m²)
or, Total thickness less than
Max. 6.5mm (at 50 to 80g/m², 15 to 21lbs)
Max. 5.0mm (at 80 to 128g/m², 21 to 34lbs)
Not
transportable
original type
Transparency film, secondary original paper,
tracing paper, carbon paper, thermal paper,
original with crumple/crimp/rip,
original with attachment/clipping,
original with many punch holes
(with 2 or 3 holes acceptable),
original preprinted with ink-ribbon,
Documents with considerable curl.
Original size
detection
Provided
Sizes to be
detected
Automatic (one detection unit to be used with
software modification by destination)
Inch-1 11" x 17", 8.5" x 14",
8.5" x 11", 8.5" x 11"R,
5.5" x 8.5", A4, A3
Inch-2 11" x 17", 8.5" x 13",
8.5" x 11", 8.5" x 11"R,
5.5" x 8.5", A4, A3
AB-1 A3, B4, A4, A4R, B5, B5R,
A5, A3, 8.5" x 11", 11" x 17"
216 x 330 mm
AB-2 A3, B4, A4, A4R, B5, B5R,
A5, 8.5" x 11", 11" x 17",
216 x 330 mm
AB-3 8K, A4, A4R, B4, 16K, 16KR,
8.5" x 11", 216 x 330 mm
Original tray
guide
display
Center of the tray
(inscribed symbol)
Original reference position
" " Original face-down
placement indication " "
Original Guide
(inscribed symbol)
(From Center)
B5R, A4R/A5, 8.5",
B4R/B5, 11", A3R/A4
The position available to attach the staple position
guide label when the optional finisher (desktop
console type) is equipped.
Supplied from the main unit
External dimensions
(WxDxH)
32.4" x 23.9" x 7.48"
(824 x 606 x 190 mm)
Occupied space
dimensions (WxD)
37.2" x 24.4" (945 x 619 mm)
(When the tray is extended)
Weight DSPF: Approx. 46.3 lbs (21.0 kg)
Type Dot map LCD, touch panel
Display dot number 640 x 240 dots (dot pitch 0.24x0.24 mm)
LCD operating
dimension
153.5 x 57.5 mm
LCD back-light Fluorescent tube method
LCD brightness
adjustment
Provided
Mode
selection area
Job status key
Document filing key
(* online display LED/data in-memory display
LED)
Image send key
(busy display LED/data in-memory display LED)
Copy mode key
User definition key
Basic input
area
Start key
CA key
10-key
Clear key
∗key
#/P key
Resistive film method
Dot 8 x 16 , 16 x 16 dots
Bold display O
Strength 60 kg
Weight Approx. 16.3 (7.4 kg)

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 1
[4] CONSUMABLE PARTS
1. Supply system table
A. European Subsidiary/East Europe/Russia/Australia/New Zealand
B. Taiwan (Aurora)
C. Asia
D. Middle East/Africa/Israel/Philippines
E. Hong Kong
F. China
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 10 350K
(35K x 10)
AR-455LT *Life: A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 10 1,000K
(100K x 10)
AR-455LD
3 Drum Drum x 1 200K AR-455DM
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 10 350k
(35k x 10)
AR-455ET *Life : A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 10 1,000k
(100K x 10)
AR-455LD
3 Drum Drum x 1 200k AR-455DM
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 10 350K
(35K x 10)
AR-455CT *Life: A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 10 1,000K
(100K x 10)
AR-455CD
3 Drum Drum x 1 200K AR-455DR
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 10 350K
(35K x 10)
AR-455ET *Life : A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 10 1,000k
(100K x 10)
AR-455CD
3 Drum Drum x 1 200k AR-455DR
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 10 350K
(35K x 10)
AR-455CT-C *Life : A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 10 1,000K
(100K x 10)
AR-455CD-C
3 Drum Drum x 1 200k AR-455DR-C
No. Item Content Life Model name Remarks
1 Toner Cartridge (Black) Toner CA with IC Chip
(Toner; Net Weight 750g)
x 1 35k AR-456ST-C *Life : A4 size at Area Coverage
6%
2 Developer (Black) Developer
(Developer; Net Weight 500g)
x 1 100k AR-455SD-C
3 Drum Drum x 1 200k AR-455DR-C

AR-M351U/M451U, AR-M355U/M455U CONSUMABLE PARTS 4 - 2
2. Maintenance parts list
A. Europe/Australia/New Zealand/Taiwan
Note: The other maintenance parts which are not listed above are registered as service parts.
B. Agency/Asia/Middle East/Africa/Latin America
Note: The other maintenance parts which are not listed above are registered as service parts.
No. Item Content Life Model name Remarks
1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC
cleaner unit are included.
Drum separation pawl x 4
MC unit *1 x 1
Toner receiving seal x 1
Side malt F x 1
Side malt R x 1
Transfer roller x 1
Discharger plate x 1
Paper dust removing unit x 1
DV blade x 1
DV side seal F x 1
DV side seal R x 1
Upper heat roller x 1
Fusing separation pawl (Upper) x 4
Lower heat roller x 1
Fusing separation pawl (Lower) x 2
Cleaning roller x 1
Bearing x 2
2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4
Common with cartridge for AR-FN6
3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7
No. Item Content Life Model name Remarks
1 200K PM kit Cleaner blade x 1 200K AR-451KA *1: Screen grid, charging plate, MC
cleaner unit are included.
Drum separation pawl x 4
MC unit *1 x 1
Toner receiving seal x 1
Side malt F x 1
Side malt R x 1
Transfer roller x 1
Discharger plate x 1
Paper dust removing unit x 1
DV blade x 1
DV side seal F x 1
DV side seal R x 1
Upper heat roller x 1
Fusing separation pawl (Upper) x 4
Lower heat roller x 1
Fusing separation pawl (Lower) x 2
Cleaning roller x 1
Bearing x 2
2 Staple cartridge Staple cartridge x 3 3000 times x 3 AR-SC1 Cartridge for AR-FN4
Common with cartridge for AR-FN6
3 Staple cartridge Staple cartridge x 3 5000 times x 3 AR-SC2 Common with cartridge for AR-FN7