Initialization Processing - Oki C911 Maintenance Manual

Oki Data CONFIDENTIAL

2.5 Initialization processing

Description
· The state of initialization is indicated by LED (Power Supply LED, initialization LED 1, 2, 3).
· The Power Supply LED is blinking in first step. In the case of the Power Supply is abnormaly, the LED is blinking at high speed.
· The initialization is start with turning on the Main Power Supply by turning on the Power Supply Switch in state of turning on of the Main Power Supply Switch.
Table of the blinking pattern of the LED in initialization
Step Initialization processing
1 Boot start
2 Completion of RAM Chack for boot
3 Completion of the recognition for
NAND-Flash
4 Completion of the Main CE1
5 Completion of the Sub CE1
6 Completion of loading the PU-FW
7 Completion of loading the CU-FW
Completion of the board initialization
8 Completion of the apparatus
initialization
■ lighting
□ Extinction
F1Y
PUFAN
HEATIF
ENV
R8C/
34C
MAIN
IC31
R8C/
33d
INITMODE
POWLED
FDMRG 2CL
GDDC MPTCOV HOPM
REG 1CL HOP
CL RAILIF
HVOLT
When problem occur
It's possible Memory error, in case extinction the LED 1,2,3 or blink the LED2,3 when power switch turn on. Change the Memory DIMM and check retrieve.
In case LED1,2,3 stop at Step1 to 6, trouble occur the board. Change the Main board.
45530603TH Rev.2
LED1 LED2 LED3
■ ■ ■
□ ■ ■
■ □ ■
□ □ ■
■ ■ □
□ ■ □
■ □ □
■ □ □
FPD
HEAD 1_ M0 Y
RFID
DRIVE 0
Batt
M
HEAD 2_ M1 ery
EMAIN
C
HEAD 3_ M2
Trans LAN
K
HEAD 4_ M3
CPU
DDR 3
DDR 3
IC6 USB
DCBELT
POWFAN
RCOVER
DCHEAT
POWER
TRY DUP
Motion of Circuit
Reading the boot program
Expansion of the boot program after RAM check for boot.
Recognition processing of NAND-Flash（IC702）
Recognition processing of CE1(MAIN）
Recognition processing of CE1(SUB)
The Engine control program is read from NAND-FLAHS（IC702) and
expanded to memory.
The CU control program is read from NAND-FLAHS(IC702) and
expanded to memory.
Power Supply LED
2. DESCRIPTION OF OPERATION
Display of OP
panel
Display of OKI-
logo
Initialinzing
Ready to Print
Initialization LED1, 2, 3
2-19