Service manual

SC495: Thermo sensor abnormal
Type: 5
- Description -
The voltage read by the thermosensor on I/O control board 1 is out of
the specified range (between 0.2 V and 3.5 V) for a successive 30
times.
- Detection Timing -
When the power switch is turned on
When the front cover is closed
- Possible Causes -
• Thermosensor
• Main control board
SP-Log: 7-402-4
SC496: Humidity sensor abnormal
Type: 5
- Description -
The voltage read by the humidity sensor on I/O control board is out of
the specified range (between 0.2 V and 3.5 V) for a successive 30
times.
- Detection Timing -
When the power switch is turned on
When the front cover is closed
- Possible Causes -
• Humidity sensor
• Main control board
SP-Log: 7-402-4
SC501: Tray upper limit sensor disabled (1st bank)
Type: 4
- Description -
The paper tray unit diagnostics notify the main control board when the
1st bank upper limit sensor does not operate.
- Detection Timing -
When the power switch is turned on
When the paper tray unit operates
- Possible Causes -
• Paper tray unit
• Main control board
SP-Log: 7-402-5
Trouble-
shooting
SERVICE CALL CONDITIONS
SM 6-15 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA