Oki MC770 Maintenance Manual

45584901TH Rev.1
6-21 /
Oki Data CONFIDENTIAL
[A] Backup SRAM
Notes:
If“[A]BackupSRAM”fails,proceedto“[B]ReturnLicense”.
If“[A]BackupSRAM”succeeds,proceedto“[C]ReplaceSRAMboard”.
(1) TurnthepowerONwhilepressing[6]andthe[CLEAR]buttonsimultaneously.
(2) When“SRAMClearMode”appearsontheLCD,keyin[0]toselect“0.SetSerial
Number” and then press the [START] button.
(3) Keyintheserialnumberonthelabelattachedtotherearcoveroftheequipment,and
thenpressthe[OK]button.
(4) “SerialNumberSettingcompleted”isdisplayed.
(5) Turn the power OFF.
(6) InstalltheUSBdeviceintheequipment,andthenturnthepowerONwhilepressing[5]
and [9] buttons simultaneously.
(7) Keyin[1]toselect“1.BackupSRAMDatatoUSB”,andthenpressthe[START]
button.
(8) Enter a password (max. 15 characters) to be set for the backup data.
(9) Restarttheequipmentafterthebackupiscompleted.
(10) Turn the power OFF.
[B] Return License
Notes:
When installing the Data Overwrite Enabler (GP-1070) and security mode is setting High
Security,setthesecuritymodelevlelto“1”(Lowlevel).Thenrestarttheequipment.
(1) Start up with the Setting Mode (08).
(2) Enterthepassword,andthenpressthe[OK]button.
 (IfthepasswordisnotsetforService,pressthe[ENTER]buttonwithoutentering
anything.)
(3) Keyin[3840],andthenpressthe[ENTER]button.
(4) Selectthelicensetobereturned,andthenpressthe[REMOVE]button.
(5) Installtheone-timedongle,whichyouusedforuploadingtheselectedlicense,inthe
equipment,andthenpressthe[OK]button.
(6) TheRemovescreenisdisplayed,thenpressthe[YES]button.Ifthisscreenisnot
displayed,checkwhethertheone-timedongleisinstalledintheequipmentproperly.
(7) After10to40secondspasses,thescreenfornotifyingthesuccessofperformanceis
displayed.
 Thenpressthe[OK]button.Ifthisscreenisnotdisplayedorthescreenfornotifying
thefailureofperformanceisdisplayed,quitthisoperationbypressingthe[NO]/[CLOSE]
button.Then,checkwhethertheone-timedongle,whichyouusedforuploadingthe
selectedlicense,isinstalledintheequipment.
(8) Check that the returned license is not displayed on the screen.
Remarks:
Ifthereareanyotherlicensestobereturned,repeatfromstep(4).
If there is no more licenses to be returned, press the [CLOSE] button, and then turn the
power OFF.

Oki MC770 Specifications

General

Brand	Oki
Model	MC770
Category	All in One Printer
Language	English