E746; E747 - Canon iR C6800 Series Service Manual

Chapter 14

14.3.84 E746

Code Detail
E746
0003
0004

14.3.85 E747

Code
E747
14-56
Cause/Particulars of detection
The accessories board is of the wrong type.
At time of start up, the UFR board is found to be of
the wrong type.
(A query is made to find out if the type is correct
with reference to the engine ID.)
At time of start up, the scanner board is found to be
of the wrong type.
(A query is made to find out if the type is correct
with reference to the engine ID.)
Detail
image processing ASIC or memory control/communication
control ASIC error
2029 1.turn off and then on the main power.
2.replace the SDRAM.
2028
3.replace the main controller PCB.
2027
2026 1.turn off and then on the main power.
2.replace the SDRAM.
2121
3.replace the main controller PCB.
2120
2119 1.turn off and then on the main power.
2.replace the SDRAM.
2118
3.replace the main controller PCB.
2213
2212 1.turn off and then on the main power.
2.replace the SDRAM.
2211
3.replace the main controller PCB.
2210
2006 1.turn off and then on the main power.
2.replace the SDRAM.
2005
3.replace the main controller PCB.
3028
T-14-88
Replace it with a UFR board of the
correct type.
Replace it with a scanner board of the
correct type.
T-14-89
Remedy
0005-0328
Remarks
0005-0329