Code :

Code: E733-0006
Description: Printer communication error
A communication error between the DC Controller PCB and the Main Controller PCB 2 is detected at startup.
Remedy: 1. Turn OFF and then ON the main power. 2. Check the connection of the Flexible Cable between the DC Controller PCB (UN9) and the Main Controller PCB 2. 3. Replace the Flexible Cable. 4. Check the power of the DC Controller PCB (UN9). (Check if the initialization operation is executed at startup.) 5. Replace the DC Controller PCB (UN9). 6. Replace the Main Controller PCB 2.

Code: E733-9999
Description: Printer communication error
The Finisher connection information differs between the Main Controller PCB 2 and the DC Controller PCB. The information on the Main Controller PCB 2 side is overwritten by turning OFF and then ON the power.
Remedy: 1. Turn OFF and then ON the power

Code: E733-F000
Description: Printer communication error
A communication error between the DC Controller PCB and the Main Controller PCB 2 is detected at startup.
Remedy: 1. Turn OFF and then ON the main power. 2. Check the connection of the Flexible Cable between the DC Controller PCB (UN9) and the Main Controller PCB 2. 3. Replace the Flexible Cable

Code: E743-0000
Description: DDI communication error
SCI error, reception data NG, reception timeout, SEQ timeout error
Remedy: 1. Turn OFF and then ON the power 2. Check connection of the cable between the Reader and the Controller 3. Check voltage (+24V and +12V) on the Reader Relay PCB 4. Replace the DDI-S cable 5. Replace the Reader Relay PCB 6. Replace Main Controller PCB 2

Code: E746-0021
Description: Engine ID error
Self-check error of Image Analysis Board (HW board used for PCAM)
Remedy: 1. Replace the Image Analysis Board (HW board used for PCAM) 2. As a temporary measure, remove the Image Analysis Board and get in service mode: COPIER > OPTION > LCNS-TR > ST-JBLK (Lv2); set STJBLK from 1 to 0, and turn OFF and then ON the power