Read Sharp AR-205 (serv.man9) Service Manual online
CODE: 00ZAR205//A1E
DIGITAL COPIER
AR-160
AR-161
AR-200
AR-161
AR-200
MODEL
AR-205
Parts marked with "
" are 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 ] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[ 7 ] SIMULATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[ 8 ] USER PROGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[ 9 ] TROUBLE CODE LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
[11] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
[12] FLASH ROM VERSION UP PROCEDURE . . . . . . . . . . . . . . . . . . . . . 12-1
[13] ELECTRICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
CONTENTS
AR-205
SHARP CORPORATION
AR-205 COVER 05/24/1999
AR-205
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.
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.
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.
ANNAT SÄTT ÄN I DENNA
BRUKSANVISNING
SPECIFICERATS, KAN
ANVÄNDAREN UTSÄTTAS FÖR
OSYNLIG LASERSTRÅLNING,
SOM ÖVERSKRIDER GRÄNSEN
FÖR LASERKLASS 1.
CAUTION
VORSICHT
ADVARSEL
VORSICHT
ADVARSEL
ADVERSEL
VARNING
VARO!
VARNING
VARO!
INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED.
AVOID EXPOSURE TO BEAM.
AVOID EXPOSURE TO BEAM.
UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET UND
SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.
SICHERHEITSVERRIEGELUNG ÜBERERÜCKT. NICHT DEM STRAHL AUSSETZEN.
USYNLIG LASERSTRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER
UDE AF FUNKTION. UNDGA UDSAETTELSE FOR STRÅLING.
UDE AF FUNKTION. UNDGA UDSAETTELSE FOR STRÅLING.
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES.
UNNGÅ EKSPONERING FOR STRÅLEN.
UNNGÅ EKSPONERING FOR STRÅLEN.
OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR ÄR
URKOPPLADE. STRÅLEN ÄR FARLIG. BETRAKTA EJ STRÅLEN.
URKOPPLADE. STRÅLEN ÄR FARLIG. BETRAKTA EJ STRÅLEN.
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTÖNTÄ
LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
Laserstrahl
CLASS 1
LASER PRODUCT
LASER KLASSE 1
Disconnect the AC cord before servicing the unit.
AR-205 COVER 05/24/1999
[6] ADJUSTMENTS
1. Adjustment item list
Section
Adjustment item
Adjustment procedure/SIM No.
A
Process
section
section
(1)
Developing doctor gap adjustment
Developing doctor gap adjustment
(2)
MG roller main pole position adjustment
MG roller main pole position adjustment
(3)
Developing bias voltage output adjustment
(4)
Main charger voltage output adjustment
B
Mechanism
section
section
(1)
Image lead edge position adjustment
SIM 50-1
(2)
Main scanning direction (FR direction) distortion
balance adjustment
balance adjustment
No. 2/3 mirror base unit installing position adjustment
Copy lamp unit installing position adjustment
(3)
Main scanning direction (FR direction) distortion
adjustment
adjustment
Rail height adjustment
(4)
Sub scanning direction (scanning direction) distortion
adjustment
adjustment
Winding pulley position adjustment
(5)
Main scanning direction (FR direction) magnification
ratio adjustment
ratio adjustment
SIM 48-1
(6)
Sub scanning direction (scanning direction)
magnification ratio adjustment
magnification ratio adjustment
a
OC mode in copying (SIM 48-2)
b
SPF mode in copying (SIM 48-5)
c
OC mode in FAX (SIM 48-6)
d
SPF mode in FAX (SIM 48-7)
(7)
Off center adjustment
a
OC mode (SIM 50-13)
b
SPF mode (SIM 50-16)
(8)
OC (SPF) open/close detection position adjustment
OC (SPF) open/close detection position adjustment
(9)
Document size detection sensor
SIM 41-3
C
Image density
adjustment
adjustment
(1)
Copy mode
SIM 46-1
2. Copier adjustment
A. Process section
(1) Developing doctor gap adjustment
1) Loosen the developing doctor fixing screw A.
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
and 130mm from the both ends of the developing doctor as
shown.
shown.
3) Push the developing doctor in the arrow direction, and tighten the
developing doctor fixing screw. (Perform the same procedure for
the front and the rear frames.)
the front and the rear frames.)
4) Check the clearance of the developing doctor. If it is within the
specified range, then fix the doctor fixing screw with screw lock.
*
When inserting a thickness gauge, be careful not to scratch the
developing doctor and the MG roller.
developing doctor and the MG roller.
<Adjustment specification>
Developing doctor gap
Both ends (20mm from the both ends): 1.5
−
0.15
+
0.1
mm
C (Center)(150mm from the both ends): 1.55
−
0.2
+
0.15
mm
(2) MG roller main pole position adjustment
1) Remove and separate the waste toner box and put the developing
unit on a flat surface.
2) Tie a string to a needle or a pin.
3) Hold the string and bring the needle close to the MG roller
horizontally. (Do not use paper clip, which is too heavy to make a
correct adjustment.) (Put the developing unit horizontally for this
adjustment.)
correct adjustment.) (Put the developing unit horizontally for this
adjustment.)
4) Do not bring the needle into contact with the MG roller, but bring it
to a position 2 or 3mm apart from the MG roller. Mark the point on
the MG roller which is on the extension line from the needle tip.
the MG roller which is on the extension line from the needle tip.
5) Measure the distance from the marking position to the top of the
doctor plate of the developing unit to insure that it is 18mm.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjust-
ment plate in the arrow direction to adjust.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjust-
ment plate in the arrow direction to adjust.
AR-205
AR-205 [6] ADJUSTMENT 05/24/1999
6 – 1
(3) Developing bias voltage adjustment
Note:
•
Use a digital multi-meter with an internal resistance of
10M
10M
Ω
or more.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the developing bias
voltage output check pin.
3) Turn on the power.
4) Adjust the adjustment volume VR31 so that the output voltage is
within the specified range shown below.
<Adjustment specification>
Mode
Specification
Developing bias voltage
DC-400
±
8V
VR31
(4) Grid bias voltage adjustment
Note:
•
Use a digital multi-meter with an internal resistance of
10M
10M
Ω
or more.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the grid bias voltage
output check pin.
3) Turn on the power.
4) Adjust the adjustment volumes (VR51, VR52) so that the output
voltage is within the specified range. (The voltage is outputted in
the grid bias high output mode during warming up, and in the grid
bias low output mode after completion of warming up.)
the grid bias high output mode during warming up, and in the grid
bias low output mode after completion of warming up.)
<Adjustment specification>
Mode
Specification
Grid bias LOW
DC-400
±
20V
VR52
Grid bias HIGH
DC-525
±
10V
VR51
B. Mechanism section
(1) Image lead edge position adjustment (SIM 50-1)
a. OC image lead edge position adjustment
Note: In advance to this adjustment, the sub scanning magnification
Note: In advance to this adjustment, the sub scanning magnification
ratio adjustment must be performed.
1) Set a scale on the OC table as shown below.
2) Make a copy.
3) Check the copy output. If necessary, perform the following adjust-
ment procedures.
4) Execute SIM 50-1.
5) Set the OC lead edge position set value (Exposure display
<AUTO> ON) to “99.”
The OC image scanning start position is shifted inside the docu-
ment edge.
The OC image scanning start position is shifted inside the docu-
ment edge.
6) Set the main cassette lead edge void adjustment value (Exposure
display <PHOTO> ON) * to “1.”
The lead edge void becomes the minimum.
The lead edge void becomes the minimum.
7) Set the print start position value (Exposure display <EXP1> ON)
to “99” and make a copy.
The print start position is shifted inside the document edge.
The print start position is shifted inside the document edge.
8) Measure the image loss R of the copied image. Enter the set
value of the image scanning lead edge position (Exposure display
<AUTO> ON) again.
<AUTO> ON) again.
•
1 step of the set value corresponds to about 0.127mm shift.
•
Calculate the set value from the formula below.
99 - R/0.127 (mm) = Image loss set value <R: Image loss meas-
urement value (mm)>
urement value (mm)>
Example: 99 - 4/0.127 = 99 - 31.5 = about 67
Note: If the set value is not obtained from the above formula,
perform the fine adjustment.
5
10
5mm
4mm
*
The dimension varies depending on the model.
10
5mm
0mm
5
*
The scanning edge is set.
(A line may be printed by scanning the document edge.)
AR-205
AR-205 [6] ADJUSTMENT 05/24/1999
6 – 2
