AR-205 (serv.man12). AR205 Service Manual-Trouble Code List - Sharp Copying Equipment Service Manual (repair manual). Page 9

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Main 
code
Sub
code
Detail of trouble
F6
88
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
F9
00
Content
F9: Communication trouble
between MCU and printer PWB
(MCU detection)
Detail
Communication establishment
error, framing error, parity error,
protocol error
Cause
Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error
00
Check and
remedy
Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
10
Content
Printer PWB trouble
Detail
Communication trouble between
MCU and printer PWB
Main 
code
Sub
code
Detail of trouble
F9
10
Cause
Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error
Check and
remedy
Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
F9
80
Content
Printer PWB communication
trouble (Protocol)
Detail
Communication trouble between
MCU and printer PWB (Protocol
error)
Cause
Bad connection of printer PWB
connector
Defective harness between printer
PWB and MCU PWB.
Motherboard connector pin
breakage
Printer PWB ROM error, data error
Check and
remedy
Check connector/harness of printer
PWB and MCU PWB.
Check grounding of the machine.
Check printer PWB ROM.
AR-205
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