Oki MB770 Service Manual

45641001TH Rev.1
8-23/
Oki Data CONFIDENTIAL
8.4.2 Systemrmware
ThesystemrmwarecanbeupdatedindividuallybyusingPWA-DWNLD-JIG2.
Important:
• Besuretoshutdowntheequipmentbeforeinstallingandremovingthedownloadjig.
• Donotshutdowntheequipmentduringtheupdate.Thedatacouldbedamagedandnotbe
able to be operated properly.
[A] Update procedure
(1) WritetheROMdatatobeupdatedtothedownloadjig(PWA-DWNLD-JIG2).
(2) Pressthe[ON/OFF]buttontoshutdowntheequipment.
(3) Take off the right side cover.

P.6-1“6.1.1Rightsidecover”
(4) Take off the SYS board cover.

P.6-4“6.1.2SYSBoardcover”
(5) Connectthedownloadjigwiththejigconnector(CN105)ontheSYSboard.
(6) Turn the power ON by pressing the [ON/OFF] button while simultaneously holding
downthe[8]and[9]keys.
(7) Pressthe[FirmwareUpdate]button,thenpressthe[1]keytoselect“1.SYSTEM
FIRMWARE(OSData)”.
(8) Conrmtheitemtobeupdated.
 “=>”isdisplayednexttotheselecteditem.Displayordeletethe“=>”bypressingthe
number of the item.
(9) Press the [START] button. Updating starts and the processing status is displayed on
theLCDscreen.
(10)“Updatesuccessfullycompleted.”isdisplayedontheLCDscreenaftertheupdatingis
completed properly. Turn the power OFF by pressing the [ON/OFF] button.
Notes:
“UpdateFailed.”isdisplayedatthebottomoftheLCDscreenwhentheupdatingis
notcompletedproperly.“Failed”appearsnexttothefaileditemonthestatusdisplay.
Inthiscase,shutdowntheequipmentandcheckthefollowingitems.Thenclearthe
problems and restart updating from the beginning.
• Isthedownloadjigconnectedproperly?
• Istheupdatingdatawrittentothedownloadjigproperly?
• Dothedownloadjigandtheequipmentoperateproperly?
(11)TurnthepowerOFFusingthemainpowerswitch,removethedownloadjig,andthen
install the SYS board cover and rear cover.
(12) Turn the power ON using the main power switch while holding down the [3] and [C]
keys simultaneously.
(13)Pressthe[5]keytoselect“5.KeyBackupRestore”,thenpressthe[START]button.

Oki MB770 Specifications

General

Brand	Oki
Model	MB770
Category	All in One Printer
Language	English