Brother MFC9100C Service Manual page 190

Error Code
(Hex)
82 Recording paper feeding error.
83 Recording paper jam.
(The registration sensor sticks to OFF, indicating that
paper has jammed.)
84 Recording paper jam.
(The paper ejection sensor has detected a paper jam.)
88 Recording paper jam.
(Even after the registration sensor has come ON, the
paper ejection sensor does not detect paper.)
A1 Scanner unit opened.
A2 Document too long to scan.
A3 Document not detected by the document rear sensor.
A4 50% or more faulty of white level data.
A7 One-line feeding timeout.
A8 One-line scanning timeout.
AC Less than 50% faulty of white level data.
AE The CCD HP sensor sticks to OFF, indicating that the
scanner has not returned to the home position.
AF The CCD HP sensor sticks to ON, indicating that the
scanner has stayed in the home position.
Error factor
VI - 6
Check:
• Paper cassette
• Registration sensor
actuator
• Paper width sensor
actuator
• Main PCB
• Registration sensor
actuator
• Main PCB
• Paper ejection sensor
actuator
• Registration sensor
actuator
• Main PCB
• Cover sensor actuator
• Main PCB
• Scanner unit
• Document front
sensor actuator
• Document rear sensor
actuator
• Control panel PCB
• Document sensor PCB
• Document feed roller
ASSY
• ADF motor
• Main PCB
• CCD unit
• Main PCB
• CCD unit
• Main PCB
• CCD HP sensor
• Main PCB
• CCD motor
• CCD drive belt