Oki IP-6620 Maintenance Manual page 237

5.5.1 System Error 100X: CPU Exception
<Description>
A general CPU exception has occurred.
The number indicated by the letter X is displayed as shown below depending on the error.
X
0
1
2
3
4
5
6
7
8
9
a
b
<Faulty part>
PCB-ASSY-IPB5-100
<Action>
Restart the Printer.
If the error persists, check the Items to be Checked on the table below, and perform the actions
starting from the top until the problem is solved.
No
1 Firmware
2 PCB-ASSY-IPB5-100
5-78
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Description of error
TLB error exception or TLB disable exception (Read)
TLB error exception or TLB disable exception (Write)
Initial page writing exception
TLB protection exception (Read)
TLB protection exception (Write)
CPU address error (Read)
CPU address error (Write)
Unconditional trap (TRAPA instruction)
Reserve instruction code exception
Slot error instruction exception
User breakpoint trap
Non-maskable interrupt
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Action
Upgrade the firmware to the latest version.
Replace the PCB-ASSY-IPB5-100.