E733-0000-- Printer Communication Error; E733-0001-- Received Message Parity Error; E733-0004-- Invalid Message Reception Error; E733-0005-- Message Timeout Error - Canon imageCLASS X LBP1238 II Service Manual

E733-0000--
Detection Description
Remedy
E733-0001--
Detection Description
Remedy
E733-0004--
Detection Description
Remedy
E733-0005--
Detection Description
Remedy
E733-0006--
Detection Description
Remedy
E733-0007--
Detection Description
Remedy
E736-0000--
Detection Description
Remedy
E736-0001--
Detection Description
Remedy
E744-0001--
Detection Description
Remedy
Printer communication error
A communication error between the Engine Controller PCB and the Main Controller PCB occurred.
1. Check the harness/connector between the Engine Controller PCB (UN1) and the Main Controller
PCB (UN30).
2. Install the set of controller firmware.
3. Replace the Main Controller PCB (UN30).
4. Replace the Engine Controller PCB (UN1).
Received message parity error
Communication error occurred after successful startup.
1. Turn OFF and then ON the main power.
2. Replace the Main Controller PCB.
Invalid message reception error
Communication error occurred after successful startup.
1. Turn OFF and then ON the main power.
2. Replace the Main Controller PCB.
Message timeout error
Communication error occurred between the Engine Controller PCB and the Main Controller PCB.
1. Turn OFF and then ON the power.
2. Check the harness/connector connection between the Engine Controller PCB (UN1) and the
Main Controller PCB (UN30).
3. Replace the Main Controller PCB (UN30).
4. Replace the Engine Controller PCB (UN1).
Unknown Communication Error
Communication error occurred between the Engine Controller PCB and the Main Controller PCB.
1. Turn OFF and then ON the power.
2. Check the harness/connector connection between the Engine Controller PCB (UN1) and the
Main Controller PCB (UN30).
3. Replace the Main Controller PCB (UN30).
4. Replace the Engine Controller PCB (UN1).
SC Level Error
Communication error occurred between the Engine Controller PCB and the Main Controller PCB.
1. Turn OFF and then ON the power.
2. Check the harness/connector connection between the Engine Controller PCB (UN1) and the
Main Controller PCB (UN30).
3. Replace the Main Controller PCB (UN30).
4. Replace the Engine Controller PCB (UN1).
Fax communication error
Communication error with the CCU/modem.
1. Check the connection of the NCU PCB (UN38).
2. Replace the NCU PCB (UN38).
3. Replace the Main Controller PCB (UN30).
Error in ROM for backing up fax data
An error occurred in the ROM for backing up fax data.
1. Check the connection of the NCU PCB (UN38).
2. Replace the NCU PCB (UN38).
3. Replace the Main Controller PCB (UN30).
Invalid combination of language file versions
The language file version did not match that of the main program.
1. Update the firmware.
151
8. Error/Jam/Alarm