AR-161 (serv.man8). AR161 Service Manual-Operational Descriptions - Sharp Copying Equipment Service Manual (repair manual)

ar-161 (serv.man8) service manual
Model
AR-161 (serv.man8)
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10
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171.21 KB
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Service Manual
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Device
Copying Equipment / AR161 Service Manual-Operational Descriptions
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ar-161-sm8.pdf
Date

Read Sharp AR-161 (serv.man8) Service Manual online

CODE: 00ZAR161//A1E
DIGITAL COPIER
AR-160
MODEL
AR-161
Parts marked with "
!
" is important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safty and performance of the set.
[ 1 ] GENERAL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[ 2 ] SPECIFICATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[ 3 ] CONSUMABLE PARTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[ 4 ] EXTERNAL VIEWS AND INTERNAL STRUCTURE  . . . . . . . . . . . . . . . 4-1
[ 5 ] UNPACKING AND INSTALLATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[ 6 ] OPERATIONAL DESCRIPTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[ 7 ] ADJUSTMENTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[ 8 ] SIMULATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[ 9 ] USER PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] TROUBLE CODE LIST  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
[11] MAINTENANCE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
[12] DISASSEMBLY AND ASSEMBLY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
[13] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
[14] CIRCUIT DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
[15] ACTUAL WIRING DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1
CONTENTS
AR-161
SHARP CORPORATION
AR-160/161 FM/E  COVER 11/27/1998
AR-161
AR-161
Warning!
This product is a class A product.
If it is operated in households, offices or similar surroundings, it
can produce radio interferences at other appliances, so that the
user has to take adequate countermeasures.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
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.
CAUTION
VORSICHT
ADVARSEL
ADVERSEL
VARNING
VARO!
INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.
USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER 
UDE AF FUNKTION. UNDGA UDSAETTELSE FOR STRÅLING.
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. 
UNNGÅ EKSPONERING 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. ÄLÄ KATSO SÄTEESEEN.
Laserstrahl
CLASS 1
LASER PRODUCT
LASER KLASSE 1 
AR-160/161 FM/E  COVER 11/27/1998
CONTENTS
[ 1 ] GENERAL
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
  1. General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
  2. Target user copy volume: Monthly average  . . . 1-1
  3. Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
  4. System configuration . . . . . . . . . . . . . . . . . . . . . 1-1
  5. Copier  installation . . . . . . . . . . . . . . . . . . . . . . . 1-1
[ 2 ] SPECIFICATIONS
 . . . . . . . . . . . . . . . . . . . . . . . . 2-1
  1. Copy mode  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[ 3 ] CONSUMABLE PARTS
 . . . . . . . . . . . . . . . . . . . 3-1
  1. Supply system table  . . . . . . . . . . . . . . . . . . . . . 3-1
  2. Environment conditions . . . . . . . . . . . . . . . . . . . 3-3
  3. Production number identification . . . . . . . . . . . . 3-3
  4. Consumable parts recycling procedure  . . . . . . 3-4
[ 4 ] EXTERNAL VIEWS AND INTERNAL
STRUCTURE
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
  1. Appearance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
  2. Internal  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
  3. Operation Section  . . . . . . . . . . . . . . . . . . . . . . . 4-2
  4. Motor, solenoid, clutch   . . . . . . . . . . . . . . . . . . . 4-3
  5. Sensor, switch . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
  6. PWB unit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
  7. Cross sectional view  . . . . . . . . . . . . . . . . . . . . . 4-6
[ 5 ] UNPACKING AND INSTALLATION
 . . . . . . . . . 5-1
  1. Installation of machine  . . . . . . . . . . . . . . . . . . . 5-1
  2. Removal of protective material and fixing screw 5-1
  3. Installation of developing cartridge  . . . . . . . . . . 5-1
  4. Removal and storage of fixing screw  . . . . . . . . 5-2
  5. Changing the copy paper size in the tray  . . . . . 5-3
[ 6 ] OPERATIONAL DESCRIPTIONS
 . . . . . . . . . . . 6-1
  1. Outline of operation . . . . . . . . . . . . . . . . . . . . . . 6-1
  2. Scanner section  . . . . . . . . . . . . . . . . . . . . . . . . 6-1
  3. Process section   . . . . . . . . . . . . . . . . . . . . . . . . 6-2
  4. Laser unit   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
  5. Paper feed section  . . . . . . . . . . . . . . . . . . . . . . 6-6
  6. Fusing section  . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
[ 7 ] ADJUSTMENTS
 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
  1. Adjustment item list  . . . . . . . . . . . . . . . . . . . . . . 7-1
  2. Copier adjustment  . . . . . . . . . . . . . . . . . . . . . . . 7-1
[ 8 ] SIMULATIONS
 . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
  1. Entering the simulation mode  . . . . . . . . . . . . . . 8-1
  2. Cancelling the simulation mode  . . . . . . . . . . . . 8-1
  3. List of simulations  . . . . . . . . . . . . . . . . . . . . . . . 8-1
  4. Contents of simulations . . . . . . . . . . . . . . . . . . . 8-2
[ 9 ] USER PROGRAM
 . . . . . . . . . . . . . . . . . . . . . . . . 9-1
  1. User program functions . . . . . . . . . . . . . . . . . . . 9-1
  2. Setting change procedure . . . . . . . . . . . . . . . . . 9-2
  3. Department counter setting . . . . . . . . . . . . . . . . 9-2
[10] TROUBLE CODE LIST
 . . . . . . . . . . . . . . . . . . . 10-1
[11] MAINTENANCE
 . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
  1. Maintenance table . . . . . . . . . . . . . . . . . . . . . . 11-1
[12] DISASSEMBLY AND ASSEMBLY
 . . . . . . . . . 12-1
  1. High voltage section  . . . . . . . . . . . . . . . . . . . . 12-1
  2. Optical section . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
  3. Fusing section   . . . . . . . . . . . . . . . . . . . . . . . . 12-2
  4. Paper exit section  . . . . . . . . . . . . . . . . . . . . . . 12-4
  5. MCU  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6
  6. Optical frame unit  . . . . . . . . . . . . . . . . . . . . . . 12-6
  7. LSU  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-6
  8. Tray paper feed section/
Paper transport section  . . . . . . . . . . . . . . . . . . 12-7
  9. Manual multi paper feed section   . . . . . . . . . . 12-8
10. Power section    . . . . . . . . . . . . . . . . . . . . . . . 12-10
11. Developing section  . . . . . . . . . . . . . . . . . . . . 12-11
12. Process section   . . . . . . . . . . . . . . . . . . . . . . 12-12
[13] ELECTRICAL SECTION
 . . . . . . . . . . . . . . . . . . 13-1
  1. Outline  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
  2. MCU  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
  3. CCD PWB  . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-13
[14] CIRCUIT DIAGRAM
 . . . . . . . . . . . . . . . . . . . . . . 14-1
[15] ACTUAL WIRING DIAGRAM
 . . . . . . . . . . . . . 15-1
AR-161
AR-160/161 FM/E  COVER 11/27/1998
[6] OPERATIONAL DESCRIPTIONS
1. Outline of operation
The outline of operation is described referring to the basic configura-
tion.
(Basic configuration)
Outline of copy operation
A. Setting conditions: Operation panel
Set copy conditions such as the copy quantity and the copy den-
sity with the operation section, and press the START key. The
information on copy conditions is sent to the MCU.
B. Image scanning: Scanner section
When the START key is pressed, the scanner section starts scan-
ning of images.The light from the copy lamp is reflected by the
document and passed through the lens to the CCD.
C. Photo signal/Electric signal conversion:
Scanner section
The image is converted into electrical signals by the CCD circuit
and passed to the MCU.
D. Image process: MCU
The document image signal sent from the CCD circuit is processed
under the revised conditions and sent to the LSU (laser unit) as
print data.
E. Electric signal/Photo signal (laser beam)
conversion: LSU
The LSU emits laser beams according to the print data. (Electrical
signals are converted into photo signals.)
The laser beams are radiated through the polygon mirror and
various lenses to the OPC drum.
F. Printing: Process section
Electrostatic latent images are formed on the OPC drum according
to the laser beams, and the latent images are developed to be
visible images (toner images).
Meanwhile the paper is fed to the image transfer section in
synchronization with the image lead edge.
The toner image is transferred on the paper.
G. Fusing: Fusing section
Heat and a pressure are applied to the toner image on the copy
paper to fuse the image on the paper.   
2. Scanner section
A. Scan process 
The scanner has sensors that are arranged in a line. These sensors
scan a certain area of a document at a time and deliver outputs
sequentially. When the line is finished, the next line is scanned, and
this procedure is repeated. The figure below shows the case where
an image which is scanned is shown with solid lines.
The direction of this line is called main scanning direction, and the
scanning direction sub scanning direction. In the figure above, one
line is divided into 5 sections. Actually, however, one line is divided
into thousands of sections. For scanning, the light receiving element
called CCD is used.
The basic resolution indicates the scanner capacity. The basic resolu-
tion is expressed in dpi (dot/inch) which shows the number of light
emitting elements per inch on the document.
The basic resolution of this machine is 400dpi.
In the sub scanning direction, at the same time, the motor that drives
the optical system is controlled to scan the image at the basic resolu-
tion.
Operation
section
Scanner section
CCD 
MCU (Main control/image process section)
Laser beam
Paper exit
Fusing section
Paper transport section
Manual paper
feed section
Cassette paper
feed section
Printer section
LSU (Laser unit)
Laser diode, Polygon mirror lens
Process section
1
2
3
4
5
5
4
3
2
1
Sub scanning direction
Sensor scanning area
Main 
scanning 
direction
To MCU PWB
AR-160/161 FM/E [6] OPERATIONAL DESCRIPTIONS 11/27/1998
AR-161
6 – 1
Page of 10

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