Half-Tone Process Control 1St Patch Error (Magenta); Half-Tone Process Control 1St Patch Error (Yellow) - Sharp AR-BC260 Service Manual

Main Sub Half-tone process control 1st patch
Title
code code error (Cyan)
F2 81 Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
Main Sub Half-tone process control 1st patch
Title
code code error (Magenta)
F2 82 Display Lamp/Message
Phenomenon Detail
Section
Common Check
Case 1 Cause
Check &
Remedy
When "Error" occurs in the
gain adjustment of SIM 44-
2:
1. Disconnection of the
harness between the
PCU PWB and the
image density sensor.
2. Image density sensor
dirt/trouble
1. Check connection of the
harness between the
PCU PWB and the
image density sensor.
2. Clean/replace the image
density sensor.
When SIM 44-2 gain
adjustment is completed:
Insufficient cleaning of the
transfer belt, calibration
plate solenoid operation
trouble
Check the drum surface
and the belt surface.
1st step of execution of half-
tone process control.
The low-density rising point
or the high-density rising
point cannot be calculated
from the linear
approximation formula of
the ratio of the sensor
output for the print
gradation value obtained
from the patch print result.
<The trouble is saved in the
trouble history, but F2
trouble is not displayed. The
operation is made with the
previous correction value.>
—
Use SIM 44-2 to adjust the
process control sensor
gain.
When "Error" occurs in the
gain adjustment of SIM 44-
2:
1. Disconnection of the
harness between the
PCU PWB and the
image density sensor.
2. Image density sensor
dirt/trouble
1. Check connection of the
harness between the
PCU PWB and the
image density sensor.
2. Clean/replace the image
density sensor.
AR-BC260 TROUBLESHOOTING 11 - 15
Main Sub Half-tone process control 1st patch
Title
code code error (Magenta)
F2 82 Case 2 Cause
Check &
Remedy
Main Sub Half-tone process control 1st patch
Title
code code error (Yellow)
F2 83 Display Lamp/Message
Phenomenon Detail
Section
Common Check
Case 1 Cause
Check &
Remedy
Case 2 Cause
Check &
Remedy
When SIM 44-2 gain
adjustment is completed:
Insufficient cleaning of the
transfer belt, calibration
plate solenoid operation
trouble
Check the drum surface
and the belt surface.
1st step of execution of half-
tone process control.
The low-density rising point
or the high-density rising
point cannot be calculated
from the linear
approximation formula of
the ratio of the sensor
output for the print
gradation value obtained
from the patch print result.
<The trouble is saved in the
trouble history, but F2
trouble is not displayed. The
operation is made with the
previous correction value.>
—
Use SIM 44-2 to adjust the
process control sensor
gain.
When "Error" occurs in the
gain adjustment of SIM 44-
2:
1. Disconnection of the
harness between the
PCU PWB and the
image density sensor.
2. Image density sensor
dirt/trouble
1. Check connection of the
harness between the
PCU PWB and the
image density sensor.
2. Clean/replace the image
density sensor.
When SIM 44-2 gain
adjustment is completed:
Insufficient cleaning of the
transfer belt, calibration
plate solenoid operation
trouble
Check the drum surface
and the belt surface.