Sharp AR-C150 (serv.man5) Service Manual ▷ View online
AR-C150
[1] OUTLINE
1. Outline of Major Sections
A. Overall block diagram of the machine
B. Major sections and functions
(1) Paper feed, paper transport section
The paper feed section has standard provisions of three tray unit.
As an option, either of a paper feed unit or a duplex unit can be in-
stalled to the option slot (at the top).
The manual paper feed tray is provided to print on the special paper
as well as the color print paper. (AR-150 only)
The paper transport section transports paper fed from each paper
feed section to the transfer section (resist roller).
As an option, either of a paper feed unit or a duplex unit can be in-
stalled to the option slot (at the top).
The manual paper feed tray is provided to print on the special paper
as well as the color print paper. (AR-150 only)
The paper transport section transports paper fed from each paper
feed section to the transfer section (resist roller).
RADF UNIT (OPTION)
IMAGE SCANNER(READ)SECTION
IMAGE TRANSFER SECTION
IMAGE PROCESS SECTION(SCAN ICU PWB / IMAGE ICU PWB / MAIN SCAN PWB)
FUSER / PAPER
EXIT SECTION
PAPER TRAY SECTION 1
SORTER
UNIT(OPTION)
OPERATION SECTION
DC POWER SUPPLY
UNIT
AC POWER SUPPLY
UNIT
LARGE CAPACITY PAPER
TRAY UNIT(OPTION)
DUPLEX SECTION(OPTION)/PAPER TRAY SECTION 4(OPTION)
ENGINE CONTROL SECTION
(MAIN PCU PWB / SUB PCU PWB)
PHOTOCONDUCTOR
SECTION (K)
SCANER(READ)
SECTION (K)
DEVELOPING
SECTION (K)
SECTION (K)
DEVELOPING
SECTION(C)
SECTION(C)
DEVELOPING
SECTION(M)
SECTION(M)
PAPER TRAY SECTION 3
PAPER TRAY SECTION 2
PAPER
TRASFER
SECTION
SECTION
TONER HOPPER SECTION
K
SCANER(READ)
SECTION (Y)
M
Y
C
SCANER(READ)
SECTION (M)
SCANER(READ)
SECTION (C)
PHOTOCONDUCTOR
SECTION (Y)
PHOTOCONDUCTOR
SECTION (M)
PHOTOCONDUCTOR
SECTION (C)
DEVELOPING
SECTION (Y)
DEVELOPING
SECTION (M)
DEVELOPING
SECTION (C)
ICU
AR-C150
1 – 1
(2) Scanner (reading) section
This section performs the following functions.
In this section, an original is radiated by the lights from the scanner
lamp and the reflected lights are read by the CCD elements of three
lines (R,G,B) and converted into image signals. The image signals
are sent to the image process section (ICU PWB).
lamp and the reflected lights are read by the CCD elements of three
lines (R,G,B) and converted into image signals. The image signals
are sent to the image process section (ICU PWB).
(3) Image process section (ICU PWB)
The 8-bit digital image signal of R, G, B outputted from the scanner
(reading) section is processed and corrected to be outputted to the
scanner (writing) section.
(reading) section is processed and corrected to be outputted to the
scanner (writing) section.
(4) Scanner (writing) section
There are four scanner (writing) units: yellow, magenta, cyan, and
black. Each scanner (writing) unit converts the dot image data of Y,
M, C, and K outputted from the ICU PWB into laser beams, and
scans to form latent electrostatic images on the OPC drum.
black. Each scanner (writing) unit converts the dot image data of Y,
M, C, and K outputted from the ICU PWB into laser beams, and
scans to form latent electrostatic images on the OPC drum.
(5) Image forming section
In this section, the laser beam images formed by the scanner (writing)
unit are formed into visible images on the paper with toner. The
above operation is composed of charging, exposure, development,
transfer, separation, and discharging.
unit are formed into visible images on the paper with toner. The
above operation is composed of charging, exposure, development,
transfer, separation, and discharging.
This section is largely divided into the following sections:
∗
OPC drum section (Composed of four units of Y, M, C, and K.)
∗
Toner hopper section
∗
Development section (Composed of four units of Y, M, C, and K.)
∗
Transfer section
∗
Waste toner collection section
(6) Fusing, paper exit section
Toner attached to the paper in the transfer section is fused on the pa-
per with heat and pressure by the heat roller.
per with heat and pressure by the heat roller.
(7) The following units can be installed as an option.
∗
Large capacity paper feed unit
∗
Duplex unit
∗
Paper feed tray unit
∗
RADF unit
∗
Sorter unit
AR-C150
1 – 2
2. Outline of Imaging Operation
A. Overall block diagram
IMA
GE SCAN(READ)
CONVER
T IMA
GE(LIGHT)
T
O
ELECTRICAL SIGNAL(ANALOG) /
COLOR SEP
ARA
TION / A/D CONVER
T / ZOOMING
IMA
GE PR
OCESS 1
SHADING CORRECTION /
WHITE BLANCE ADJUSTMENT /
D
ARK COMPONENT CORRECTION / GAMMA CORRECTION /
MTF CORRECTION / R,G,B
TIMING CORRECTION
FORGER
Y JUDGMENT
IMA
GE PR
OCESS 2
INPUT PR
OCESS(GAMMA ADJ / COLOR CONVER
T
R,G,B
Y
,M,C
/
HIST
OGRAM PR
OCESS
AREA SEP
ARA
TION(BLA
CK COLOR
TEXT
,DO
T P
A
TTERN,PHO
T
O
IMA
GE
JUDGMENT
PR
ODUCE BLA
CK COLOR
COLOR CORRECTION(COLOR BALANCE ADJUSTMENT)
ZOOMING
FIL
TER PR
OCESS
HALF
T
ONE PR
OCESS(GAMMA CORRECTION / CPT P
A
TTERN OUTPUT)
IMA
GE PR
OCESS 3
OUT PUT PR
OCESS(CONVER
T COLOR IMA
GE D
A
TA
T
O
LASER BEARM D
A
TA
/ ADJUST OUTPUT
TIMING)
PR
ODUCE
ELECTR
OST
AIC
LA
TENT IMA
GE(Y)
DEVELPING(Y)
IMA
GE TRANSFER(Y)
FUSING
DISCHARGE
CHARGE
CLEANING
CLEANING
CONVERT
IMAGE DATA TO
LASER BEARM(Y)
MAIN
CHARGER
UNIT
LSU UNIT(Y)
DEVELOPING
UNIT(Y)
T
ONER
HOPPER
UNIT(Y)
T
ONER
M
OTO
R
DISCHARGE
LAMP
CLEANING
BLADE
DISCHARGE
(Y)
IMA
GE TRANSFER
BEL
T
TRANSFER
R
OLLER (Y)
CLEANING
BLADE
W
ASTE
T
ONER
BO
TTLE
D
V
M
OTO
R
(COLOR)
PR
ODUCE ELECTR
OST
AIC
LA
TENT IMA
GE(M)
DEVELPING(M)
IMA
GE TRANSFER(M)
CONVER
T IMA
GE D
A
TA
T
O
LASER BEARM(M)
DISCHARGE(M)
TRANSFER
R
OLLER(M)
PR
ODUCE ELECTR
OST
AIC
LA
TENT IMA
GE(C)
DEVELPING(C)
IMA
GE TRANSFER(C)
CONVER
T IMA
GE D
A
TA
T
O
LASER BEARM(C)
DISCHARGE(C)
TRANSFER
R
OLLER(C)
PR
ODUCE ELECTR
OST
AIC
LA
TENT IMA
GE(C)
DEVELPING(K)
IMA
GE TRANSFER(K)
CONVER
T IMA
GE D
A
TA
T
O
LASER BEARM(K)
DISCHARGE(K)
TRANSFER
R
OLLER(K)
SCANNING MO
T
O
R
SCANNING MIRR
OR
SCAN ICU PWB
IMA
GE ICU PWB
MAIN ICU PWB
CPT PWB
HEAR
T
R
OLLER
OIL PUMP
CLEANING
R
OLLER
FUSER
M
OTO
R
FUSER OIL
LSU UNIT(M)
SCANNING MO
T
O
R
SCANNING MIRR
OR
LSU UNIT(C)
LASER DIODE
SCANNING MO
T
O
R
SCANNING MIRR
OR
LSU UNIT(K)
LASER DIODE
SCANNING MO
T
O
R
SCANNING MIRR
OR
PHO
TOCONDUCT
OR
DR
UM(Y)
DISCHARGE
CHARGE
CLEANING
MAIN CHARGER
UNIT
DISCHARGE
LAMP
CLEANING BLADE
PHO
TOCONDUCT
OR
DR
UM(M)
DISCHARGE
CHARGE
CLEANING
MAIN CHARGER
UNIT
DISCHARGE LAMP
CLEANING BLADE
PHO
T
OCONDUCT
OR
DR
UM(M)
DISCHARGE
CHARGE
CLEANING
MAIN CHARGER
UNIT
DISCHARGE LAMP
CLEANING BLADE
PHO
TOCONDUCT
OR
DR
UM(K)
TRANSFER
BEL
T
M
OTO
R
P
APER TIMING
CONTR
OL
RRC MO
T
O
R
P
APER FEED (
´
4)
MANU
AL P
APER FEED
PAPER TRAY
LIFT UP UNIT
P
APER PICK UP
R
OLLER
P
APER SEP
ARA
TION
R
OLLER / P
APER
FEED R
OLLER
PAPER
TRANSPORT
PAPER
TRANSPORT
ROLLERS
P
APER
TRANSPOR
T
CLUTCH
PAPER FEED CLUTCH
P
APER PICK UP
SOLENOID
P
APER PICK UP
R
OLLER
P
APER SEP
ARA
TION
R
OLLER / P
APER
FEED R
OLLER
PAPER FEED CLUTCH
P
APER PICK UP
SOLENOID
2
2
2
2
P
APER
DISCHARGE
DISCHARGE
R
OLLER
W
ASTE
T
ONER
BO
TTLE
1
1
1
1
1
2
HIGH V
O
LT
A
G
E
PO
WER PWB
(TC)
TRANSFER
UNIT
LIFT MO
T
O
R
P
APER FEED
M
OTO
R
3
3
DR
UM
M
OTO
R
DR
UM MO
T
O
R
DR
UM MO
T
O
R
DR
UM MO
T
O
R
4
4
HIGH V
O
LT
A
G
E
RELA
Y PWB
HIGH V
O
LT
A
G
E
PO
WER PWB
(MC/D
V)
5
5
5
5
5
HEAR
TER
AMP
FUSER CONTR
OL PWB
(A
C SUB PO
WER PWB)
T
ONER
DEVELOPPER
DEVELOPING
UNIT(M)
T
ONER HOPPER
UNIT(M)
T
ONER MO
T
O
R
3
4
T
ONER
CONCENTRA
TION
SENSOR
T
ONER
DEVELOPPER
DEVELOPING
UNIT(C)
T
ONER HOPPER
UNIT(C)
T
ONER MO
T
O
R
3
4
T
ONER
DEVELOPPER
DEVELOPING
UNIT(K)
T
ONER HOPPER
UNIT(K)
T
ONER MO
T
O
R
4
T
ONER
DEVELOPPER
PRINTED
P
APER
ORIGINAL
IMA
GE SCANER(READ) SECTION
SCANNER LAMP
MIR
ORS
LENS
CCD
SCANNER MO
T
O
R
SCANNER LAMP
CONTR
OL PWB
P
APER
P
APER
PCU PWB
PCU SUB PWB
DC PO
WER PWB
OPERA
TION UNIT
D
V
MO
T
OR(BLA
CK)
LASER DIODE
T
ONER
CONCENTRA
TION
SENSOR
T
ONER
CONCENTRA
TION
SENSOR
TONER
CONCENTRA
TION
SENSOR
LASER DIODE
AR-C150
1 – 3
