Process Control Self-Check Result - Ricoh J-P3 Service Manual

PROCESS CONTROL ERROR CONDITIONS
No. Result
Vt error
3
Toner supply
error
8
Failure
9
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.

4.2.2 PROCESS CONTROL SELF-CHECK RESULT

See Model J-P2 Service Manual.
Description
Vt is less than 1. Check if the drum stay is properly set and secured.
0.78V and "Reset
2. Check if the development unit is properly set.
development unit"
3. If the problem is still the same, check the following:
is displayed.
• Poor connection of connectors
• TD sensor defective
• Harness damage
• BCU board failure
• Firmware problem (engine main or MUSIC)
During toner fill-up
1. Check if the toner cartridge is properly set.
mode, Vt does not
2. Check if the amount of toner left in the toner cartridge
reach the target
value.
3. Check if toner is coagulated. (If yes, shake the toner
4. Check if the connectors of the following parts are
5. Check if the toner supply tube is bent, caught, or
Vt cannot be 1. Shielding tape is not
adjusted within 3.0
± 0.1V.
SC370 - 373 will 2. Development unit is
be displayed.
Turning the main
switch off and on
clears this SC
code.
3. TD sensor defective.
Possible Cause
is insufficient.
cartridge well.)
properly set, and/or replace the parts.
Toner attraction pump / Air Pump / Valves
damaged.
removed.
not firmly installed,
causing poor
connection of the TD
sensor connector.
4-2
20 February 2004
Action
1. Remove the shielding tape
to supply developer to the
unit.
2. Reinstall the development
unit.
3. Replace the development
unit.