Oki MB760 Service Manual page 124

Proce-
Check item
dure
3 Board check
Parts to be replaced
PU board
SYS board
LED head
Harness of LED head
[F110] Communication error between system-CPU and scanner-CPU
[F111] scanner response abnormality
Classification
Communication related
service call
Check item
SU board
SYS board
Parts to be replaced
SU board
SYS board
45641001TH Rev.1
• 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
[F110] Communication error between System-CPU and Scanner- CPU
[F111] Scanner response abnormality
• 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.
Check if the conductor pattern on the SYS board is short circuited or open
circuited.
Oki Data CONFIDENTIAL
Measures
Remark
Error content
Measures
Remark
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