Brother HL-4570CDW - Page 44

2-13
Confidential
6C Fuser unit error. (The center
thermistor detects 270 °C or
higher temperature for 1 second.)
2-46
6D Fuser unit error. (The center
thermistor detects 60 °C or
lower temperature for 1 second
during standby or printing.)
2-46
6E Fuser unit error. (The center
thermistor fails to detect the
temperature rise even after the
halogen heater is turned ON
during printing and 15 second
pass.)
2-46
6F Fuser unit error. (The center and
side thermistors detect extremely
high temperature.) (Detection of
hardware.)
2-47
70 Fuser develop motor error. 2-47
71 Laser unit polygon motor error. 2-48
72 Beam detecting sensor (Black/
Yellow) error of the laser unit.
2-48
73 Beam detecting sensor (Cyan/
Magenta) error of the laser unit.
2-48
74 The color toner reached the end
of life during printing.
2-49
75 Cooling down the inside of the
printer to protect it.
2-49
76 Fuser unit error. (The center
thermistor detects the sharp
temperature rise.)
2-50
78 Fuser unit error. (The center
thermistor detects the sharp
temperature fall.)
2-50
7A Engine PCB error. (detection of
PF drive motor lock error.)
2-50
7B Engine PCB error. 2-51
7C Communication error between
the engine PCB and main PCB.
2-51
Error
codes
Problem
Refer
to:
7D Dirt on drum unit. 2-51
7E Belt unit is at the end of life.
(The operation is stopped.)
2-54
7F An unidentified error occurred. 2-54
81 Incorrect density sensor
measurement value when
implementing adjustment of
color density.
2-55
82 Density patch measurement is
not completed normally when
implementing adjustment of
color density.
2-55
83 Drum unit error.
(An drum error occurred after
the drum unit reached the end of
life.)
2-55
84 Paper jam at the rear section of
the printer.
2-56
85 The paper tray 1 is not installed. 2-57
86 The paper tray 2 is not installed. 2-57
87 Toner of the color which is being
used reaches the end of life
when implementing adjustment
of color density.
2-58
88 Paper jam inside the printer. 2-58
89 Unsupported paper size is used
for duplex printing.
2-59
8A Paper jam in the paper tray 1. 2-59
8B Paper jam in the paper tray 2. 2-60
8C Paper jam in the MP tray. 2-61
8D Paper jam occurred around the
back cover at the time when the
power was turned ON, or the
fuser cover is open.
2-61
8E Error in the adjustment of
inter-color position alignment
result when implementing it.
2-62
Error
codes
Problem
Refer
to: