Oki MC770 Maintenance Manual

45584901TH Rev.1
8-23 /
Oki Data CONFIDENTIAL
8.4.2 System firmware
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[POWER]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 CU board cover.

P.6-3“6.1.2CUboardcover”
(5) Connect the download jig with the jig connector (CN105) on the CU board.
(6) TurnthepowerONbypressingthe[POWER]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) Confirm 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[POWER]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 CU 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 MC770 Specifications

General

Brand	Oki
Model	MC770
Category	All in One Printer
Language	English