Sharp AR-C150 Service Manual page 89

Check that the following simulation values are in the specified range. If not, troubleshoot the cause and readjust.
SIM
ITEM
No
Default
44-2 DMGNDY —
DMGNDM —
DMGNDC —
DMGNDK —
MKY/GND —
MKM/GND —
MKC/GND —
MKK/GND —
PCLEDC —
PCLEDK —
P_BK_B
— (PCS_B_TARGET_ID)
P_CY
—
Check the following simulation values are in the specified range. If not, set the values to the specified range.
SIM
ITEM
No
Default
44-4 PCS_C_TARGET_ID
PCS_B_TARGET_ID
Y_PAT_TARGET_ID
M_PAT_TARGET_ID
C_PAT_TARGET_ID
K_PAT_TARGET_ID 15 (AR-
C100/
C150)
22 (AR-
C160/
C250/
C270)
SPEC Phenomenon caused when the adjustment value is not in the normal
Standard value
Improper adjustment of OPC drum phase
185 ± 10 / 0 to 255
30 to 70
Because of improper image sensor sensitivity
0 to 255
adjustment, the process correction (high density
section image density correction) is not
SIM44-4
performed properly, resulting in improper
± 2 / 0 to 255
parameters of the voltage, the current, and the
laser power of the process section. / Because of
SIM44-13 (P_CYI)
improper half-tone process correction, the laser
± 2 / 0 to 255
ON duty becomes improper.
SPEC
Phenomenon cause when the set value is changed
Standard
value
Change in the color image sensor sensitivity (When
the set value is increased, the image density is
decreased. When the set value is decreased, the
image density is increased.)
102 —
Change in the black image sensor sensitivity (When
the set value is increased, the image density is
increased. When the set value is decreased, the
image density is decreased.)
133 —
Change in the process correction (Yellow image high
density section image density correction) level (When
the set value is increased, the image density in the
90 —
high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
Change in the process correction (Magenta image
high density section image density correction) level
(When the set value is increased, the image density
100 — in the high density section is increased and abnormal
copy is decreased. When the set value is decreased,
the image density in the high density section is
decreased and abnormal copy is increased.)
Change in the process correction (Cyan image high
density section image density correction) level (When
the set value is increased, the image density in the
83 — high density section is increased and abnormal copy
is decreased. When the set value is decreased, the
image density in the high density section is
decreased and abnormal copy is increased.)
Change in the process correction (Black image high
density section image density correction) level (When
the set value is increased, the image density in the
— high density section is decreased and abnormal copy
is increased. When the set value is decreased, the
image density in the high density section is increased
and abnormal copy is decreased.)
value range.
7 – 35
NOTE
Image color shift, Check the
banding, F2-50 – 57 sections related to
the OPC drum
and the OPC
drum mark sensor.
Improper image Check the
density, improper sections related to
copy, abnormal copy, the transfer belt
chip on the edge of and the image
half-tone image, tone density sensor.
gap, improper color
balance / Errors
F2-44 – 45, 80 – 90
Phenomenon caused when the
set value is not in the normal
value range
Because of improper image
sensor sensitivity adjustment, the
process correction (high density
section image density correction)
is not performed properly,
resulting in improper parameters
of the voltage, the current, and
the laser power of the process
section. / Because of improper
half-tone process correction, the
laser ON duty becomes improper.
Improper image density, improper
copy, abnormal copy, chip on the
edge of half-tone image, tone
gap, improper color balance /
Errors F2-44 – 45, 80 – 90
Color image high density section
abnormal copy, improper image
density, improper copy, improper
color balance, toner dispersion,
developer dispersion
Black image high density section
abnormal copy, improper image
density, improper copy, improper
color balance, toner dispersion,
developer dispersion
NOTE