Konica Minolta bizhub C203 Service Manual page 519

16. Malfunction code
Code Item
C2558 Abnormally high toner
density detected black
TCR sensor
C2559 Cyan TCR sensor
adjustment failure
C255A Magenta TCR sensor
adjustment failure
C255B Yellow TCR sensor
adjustment failure
C255C Black TCR sensor
adjustment failure
C2650 Main backup media
access error
C2651 EEPROM access error
(IU C)
C2652 EEPROM access error
(IU M)
C2653 EEPROM access error
(IU Y)
C2654 EEPROM access error
(IU K)
C2A01 EEPROM access error
(TC C)
C2A02 EEPROM access error
(TC M)
C2A03 EEPROM access error
(TC Y)
C2A04 EEPROM access error
(TC K)
474
Detection timing
• TC ratio in the developing machine, which is
determined by toner replenishing amount
control mechanism, is 11 % or more for a
given number of times consecutively.
• When the connector of the TCR sensor is
disconnected.
• TCR sensor automatic adjustment does not
function properly, failing to adjust to an
appropriate value.
• The re-written data, which has been read
out, checked and founded as error, is read
out again and found as error.
• The error was found when reading out the
counter value.
• The machine detects that the service
EEPROM board is not loaded in position.
• An error was found when reading or writing
data.
• The error was found when reading out the
counter value.
• An error was found when reading or writing
data.
• The error was found when reading out the
counter value.
Field Service Ver. 1.0 Jul. 2007
Trouble iso-
lation com-
pliant unit
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Rank
B
B
B
B
B
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C
C
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C