Toner Cartridge Improper Cartridge Detection (Cyan); Toner Cartridge Improper Cartridge Detection (Magenta); Toner Cartridge Improper Cartridge Detection (Yellow); Toner Cartridge Crum Error (Black) - Sharp MX-2300 G Service Manual

F2-71 Toner cartridge improper cartridge
detection (CYAN)
Trouble content Improper data are detected in the CRUM contents
when the normal CRUM of the cartridge is detected.
Section PCU
Case 1 Cause An improper cartridge is inserted. Toner cartridge
trouble
Check Replace the toner cartridge.
and
remedy
F2-72 Toner cartridge improper cartridge
detection (MAGENTA)
Trouble content Improper data are detected in the CRUM contents
when the normal CRUM of the cartridge is detected.
Section PCU
Case 1 Cause An improper cartridge is inserted. Toner cartridge
trouble
Check Replace the toner cartridge.
and
remedy
F2-73 Toner cartridge improper cartridge
detection (YELLOW)
Trouble content Improper data are detected in the CRUM contents
when the normal CRUM of the cartridge is detected.
Section PCU
Case 1 Cause An improper cartridge is inserted. Toner cartridge
trouble
Check Replace the toner cartridge.
and
remedy
F2-74

Toner cartridge CRUM error (BLACK)

Trouble content CRUM cannot be read or written.
Section PCU
Case 1 Cause Connection trouble or disconnection of the connector
and the harness between the PCU and the toner
cartridge.
Check Check the connector and the harness between the
and PCU and the toner cartridge.
remedy
Case 2 Cause CRUM trouble
Check Replace the toner cartridge.
and
remedy
Case 3 Cause Control PWB (PCU) trouble
Check Replace the PCU PWB.
and
remedy
MX-2300/2700 N/G SELF DIAG AND TROUBLE CODE 8 – 18
F2-75 Toner cartridge CRUM error (CYAN)
Trouble content CRUM cannot be read or written.
Section PCU
Case 1 Cause Connection trouble or disconnection of the connector
and the harness between the PCU and the toner
cartridge.
Check Check the connector and the harness between the
and PCU and the toner cartridge.
remedy
Case 2 Cause CRUM trouble
Check Replace the toner cartridge.
and
remedy
Case 3 Cause Control PWB (PCU) trouble
Check Replace the PCU PWB.
and
remedy
F2-76 Toner cartridge CRUM error
(MAGENTA)
Trouble content CRUM cannot be read or written.
Section PCU
Case 1 Cause Connection trouble or disconnection of the connector
and the harness between the PCU and the toner
cartridge.
Check Check the connector and the harness between the
and PCU and the toner cartridge.
remedy
Case 2 Cause CRUM trouble
Check Replace the toner cartridge.
and
remedy
Case 3 Cause Control PWB (PCU) trouble
Check Replace the PCU PWB.
and
remedy
F2-77 Toner cartridge CRUM error
(YELLOW)
Trouble content CRUM cannot be read or written.
Section PCU
Case 1 Cause Connection trouble or disconnection of the connector
and the harness between the PCU and the toner
cartridge.
Check Check the connector and the harness between the
and PCU and the toner cartridge.
remedy
Case 2 Cause CRUM trouble
Check Replace the toner cartridge.
and
remedy
Case 3 Cause Control PWB (PCU) trouble
Check Replace the PCU PWB.
and
remedy