Unit installation

AR-C330 SELF DIAG MESSAGE AND TROUBLESHOOTING 10 - 38
F2 83 Case 6 Trouble
position/
cause
Developing bias output
trouble
Remedy (Check) Developing bias
contact check / High voltage
PWB check / Developing
bias voltage check
(Repair) High voltage power
PWB replacement /
Developing bias output
voltage adjustment (SIM8-
1) / Power Source-ON
(After-work) Execute the
image density correction
(SIM 44-6). / Execute the
half tone density correction
(SIM 44-26).
Case 7 Trouble
position/
cause
Transfer trouble
Remedy (Check) Transfer roller
check / High voltage power
PWB check / Transfer
voltage check
(Repair) Transfer roller
replacement / High voltage
power PWB replacement /
Transfer output voltage
adjustment (SIM 8-6) /
Power Source-ON
(After-work) Execute the
image density correction
(SIM 44-6). / Execute the
half tone density correction
(SIM 44-26).
Case 8 Trouble
position/
cause
Scanner (writing) unit
trouble (Scanner (writing)
motor trouble / Laser beam
sensor trouble / Internal
optical system dirt)
Remedy (Check) Check the
operation of the scanner
(writing) unit. (SIM 61-1)
(Repair) Replace the
scanner (writing) unit. /
Power Source-ON
(After-work) Adjust ADJM7/
ADJM9/ADJM10
Main
code
Sub
code
Title
Half tone correction (1st patch)
trouble (YELLOW)
Main
code
Sub
code
Title
Half tone correction (2nd patch)
trouble (BLACK)
F2 84 Phenomena Display Lamp
Message
Detail In the half toner image
density correction, the toner
patch densities at the
boundary sections of the
low density area, the
medium density area, and
the high density area are
abnormally different from
each other.
Section Image process
Operation
mode
Image density correction
Note
Case 1 Trouble
position/
cause
Image density sensor
trouble
Remedy (Check) Check the image
density sensor (dirt, output).
(SIM44-2)
(Repair) Clean or replace
the image density sensor. /
Power Source-ON
(After-work) Adjust ADJ M6
Case 2 Trouble
position/
cause
Transfer belt trouble (dirt,
scratch)
Remedy (Check) Toner dispersion
from transfer belt cleaner,
OPC drum unit, developing
unit
(Repair) Transfer belt
cleaning, replacement /
Transfer belt cleaner
replacement / OPC drum
unit, developing unit
cleaning / Power Source-
ON
(After-work)
Case 3 Trouble
position/
cause
PCU SUB PWB trouble
Remedy (Check) Check the PCU
SUB PWB humidity sensor
circuit.
(Repair) PCU SUB PWB
replacement / Power
Source-ON
(After-work)
Case 4 Trouble
position/
cause
PCU MAIN PWB trouble
Remedy (Check)
(Repair) Replace the PCU
MAIN PWB. / Power
Source-ON
(After-work) Re-enter setup
values and adjustment
values. (Install the
EEPROM of the defective
PCU MAIN PWB to a new
PCU MAIN PWB.)