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45641001TH Rev.1

5-41 /

Oki Data CONFIDENTIAL

Proce-

dure

Check item Measures

3 Board check • CheckiftheconnectorCN118,CN119ontheSYSboardandthe

connectorCUIF0,CUIF1onthePUboardarecompletelyinserted.

• CheckiftheconnectorpinbetweentheSYSboard(connectorCN118,

CN119)andthePUboard(connectorCUIF0,CUIF1)isdisconnected.

• CheckiftheconnectorsHEAD0K,HEAD1Y,HEAD2M,andHEAD3C

oftheLEDheadarecompletelyinserted,andtheharnessis

disconnected or open circuited.

• CheckiftheconductorpatternsonthePUboardandSYSboardare

short circuited or open circuited

Parts to be replaced Remark

PU board

SYS board

LEDhead

HarnessofLEDhead

[F110] Communication error between System-CPU and Scanner-CPU

[F111] Scanner response abnormality

Classiﬁcation Error content

Communication

service call

[F110] Communication error between System-CPU and Scanner- CPU

[F111] Scanner response abnormality

Check item Measures

SU board • CheckiftheharnessconnectingtheSUboardandSYSboardis

disconnected or open circuited.

• CheckiftheconductorpatternontheSUboardisshortcircuitedor

open circuited.

SYS board Check if the conductor pattern on the SYS board is short circuited or open

circuited.

Parts to be replaced Remark

SU board

SYS board

Oki MPS5502 Service Manual

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