Read Sharp AR-C150 (serv.man5) Service Manual online
B. Outline of operations in each operation mode
(1) Color mode
a. The original images are read.
∗
Color separation is made into R, G, and B.
∗
The contrast of light is converted into electric signals.
b. Input process (Image process 1)
∗
Image correction is made.
c. Color conversion, area separation, black generation, color
correction, half tone process, filter process (image process 2)
∗
Area separation, color correction, half tone process, and filter
process are performed.
process are performed.
∗
RGB image data are converted into YMC image data.
∗
K image data are formed from RGB image data.
d. Video data generation (Image process 3)
∗
YMC image data are converted into video data.
e. Latent electrostatic images are formed (exposed) on the OPC
drum.
∗
The OPC drum is exposed with laser beams.
f. Development
∗
The latent electrostatic images are formed into visible images by
toner.
toner.
g. Transfer
∗
Toner images are transferred onto paper.
h. Fusing
∗
Toner on the paper is fused.
(2) Monochrome mode
a. The original images are read.
∗
Color separation is made into R, G, and B.
∗
The contrast of light is converted into electric signals.
b. Input process (Image process 1)
∗
Image correction is made.
c. Color conversion, area separation, black generation, color
correction, half tone process, filter process (image process 2)
∗
Area separation, color correction, half tone process, and filter
process are performed.
process are performed.
∗
RGB image data are converted into M image data.
∗
M image data are used as K image data.
d. Video data generation (Image process 3)
∗
K image data are converted into video data.
e. Latent electrostatic images are formed (exposed) on the OPC
drum.
∗
The OPC drum is exposed with laser beams.
f. Development
∗
The latent electrostatic images are formed into visible images by
toner.
toner.
g. Transfer
∗
Toner images are transferred onto paper.
h. Fusing
∗
Toner on the paper is fused.
SCANNING IMAGE (READ)
TRANSFER IMAGE
FUSIN/
EXIT
EXIT
PAPER
SUPPLY
SUPPLY
IMAGE PROCESS 1 (INPUT PROCESS/CORRECTION)
IMAGE PROCESS 3 (PRODUCE VIDEO DATA)
COLOR CONVERSION
PRODUCE BLACK
DEVELOPING
(Y)
DEVELOPING
(M)
DEVELOPING
(C)
DEVELOPING
(K)
SCANNING
(WRITING)
EXPOSE (Y)
SCANNING
(WRITING)
EXPOSE (M)
SCANNING
(WRITING)
EXPOSE (C)
SCANNING
(WRITING)
EXPOSE (K)
IMAGE PROCESS 2 (COLOR CONVERSION/AREA SEPARATION/
COLOR CORRECTION/HALF TONE PROCESS/FILTER PROCESS)
SCANNING IMAGE (READ)
TRANSFER IMAGE
FUSIN/
EXIT
EXIT
PAPER
SUPPLY
SUPPLY
IMAGE PROCESS 1
(INPUT PROCESS/CORRECTION)
IMAGE PROCESS 3 (PRODUCE VIDEO DATA)
COLOR CONVERSION
MAGENTA
SCANNING
(WRITING)
(EXPOSE) (Y)
SCANNING
(WRITING)
(EXPOSE) (M)
SCANNING
(WRITING)
(EXPOSE) (C)
SCANNING
(WRITING)
(EXPOSE) (K)
DEVELOPING
(Y)
DEVELOPING
(M)
DEVELOPING
(C)
DEVELOPING
(K)
IMAGE PROCESS 2 (COLOR CONVERSION/AREA SEPARATION/
COLOR CORRECTION/HALF TONE PROCESS/FILTER PROCESS)
AR-C150
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