J2 Hightoner Fault Rap - Xerox 3001 Service Manual

J2 High Toner Fault
RAP
The status code J2 is displayed when the
toner concentration is significantly higher
than the nominal set point.
This status code may occur if there is a
problem with the toner dispensing or the
mixing of the developer material. The Initial
Actions deal with the most likely mechanical
causes for the J2 code.
Initial Actions
Ensure that diagnostic code [45] is set
properly.
Ensure that the toner cartridge
is
not
defective and that too much toner is
not being dispensed into the
developer housing (Refer t o OF3
Toner Cartridge RAP).
Ensure that the Toner Dispense
Solenoid is adjusted correctly (ADJ.
9.3) and is not binding.
Ensure that the Toner Sensor
connectors P/J 31, 34, and 65 are
connected securely.
Ensure that the Toner Sensor
connector PlJ34 is connected securely.
Procedure
NOTE
It is not necessary to turn on the Main Drive
Motor using code [ I 01 before entering code
P S I .
52 High Toner Fault RAP
Enter the diagnostic mode. Enter the code
[4] and press Start. Make a record of the
control point, then press Stop.
Enter the code [25] t o display the Toner
Concentration value.
NOTE
When code [25] is entered the Main Drive
Motor will not start until the fuser is at the
correct temperature. The value displayed will
flash until the reading has stabilized. The
cleaning blade is engaged when the Main
Drive Motor starts.
The value displayed in code I251 is at least 5
greater than the value of code [4].
Y N
Replace the Controller PWB (REP 3.1). If
the problem persists, replace the Control
Panel (PL 1.1).
Make 3 copies of 82E5980 in the Normal copy
mode. Check the image density of the last
COPY.
The density of the 0.70G5 paragraph i n the
center of 82E5980 is greater than or equal t o
paragraph 28.5 on S. 1 . R 82E7030.
Y N
I
Perform the Electrostatic Series (ADJ 9.3)
then, return t o this RAP.
Make 3 copies of 82E598O in the Normal
copy mode. Check the image density of
the last copy.
The density of the 0.7065 paragraph in
the center of 8 2 ~ 5 9 8 0 is greater than or
equal t o paragraph 28.5 on S . 1 . R 82E7030.
Y N
A B C
A B C
Go t o Flag 3 and check for an open or
short circuit.
There is an open or short circuit.
Y N
Replace the toner sensor (REP
9.1 1). If the problem persists,
replace the Controller PWB (REP
3.1).
Repair the wires. Enter the code [46]
and press Start t o begin the Auto
Detone.
Observe the rotation speed of the toner
cartridge.
The rotation speed is fast (about 10 seconds
per revolution.
Y N
I
Enter the code [46] and press Start t o
begin the Auto Detone.
Switch off the copier, and disconnect PlJ35.
Switch on the copier, and enter the code [I91
then [ l o ] and press Start.
Observe the rotation speed of the toner
cartridge.
The rotation speed is slow (about 2 t o 4
minutes per revolution.