Service manual

PROCESS CONTROL ERROR CONDITIONS
G130/G131 4-2 SM
No. Result Description Possible Causes Action
8
Toner supply
error
During toner fill-up
mode, Vt does not
reach the target
value.
1. Check if the toner cartridge correctly set.
2. Check if the amount of toner left in the toner cartridge
is sufficient.
3. Check if toner is coagulated. (Shake the toner
cartridge well if it is.)
4. Check if the connectors of the following parts are
correctly set, and/or replace the parts.
Toner attraction pump / Air Pump / Valves
5. Check if the toner supply tube is bent, caught, or
damaged.
9
Failure Vt cannot be
adjusted within 3.0
± 0.1V.
SC370 - 373 will
be displayed.
Turning the main
switch off and on
clears this SC
code.
1. Shielding tape is not
removed.
2. Development unit is
not firmly installed,
causing poor
connection of the TD
sensor connector.
3. TD sensor defective.
1. Remove the shielding tape
to supply developer to the
unit.
2. Reinstall the development
unit.
3. Replace the development
unit.
NOTE: When the machine detects new development units, it automatically starts
developer initialization. If an error other than Error 8 occurs, developer
initialization is automatically resumed by opening and closing the front door
or turning the main switch off and on.