Brother HL-4140CN Service Manual page 42

Error
Problem
codes
27 PF drive motor error.
28 Drum drive motor error.
29 Paper eject motor error.
2A Develop release motor error.
2B Blower error.
2C Black Toner/New sensor PCB
error.
2D Yellow Toner/New sensor PCB
error.
2E Magenta Toner/New sensor PCB
error.
2F Cyan Toner/New sensor PCB error.
30 Erase lamp current value error.
31 Density sensor error.
32 Registration mark sensor shutter
operation error.
33 Registration mark R PCB ASSY
error.
34 Registration mark L PCB ASSY
error.
35 Failure in NVRAM of the engine
PCB.
36 Error in the high-voltage power
supply PCB while the printer is
in the standby mode.
37 Belt unit temperature sensor error.
38 External temperature sensor
error.
39 External humidity sensor error.
3A Engine PCB transfer error.
(Communication error between
the main CPU and sub CPU.)
3B Main PCB DRAM access error.
Refer Error
to: codes
2-28 3C Main PCB error.
(Write error in NVRAM)
2-28
2-29 3D Main PCB error.
(Read error in NVRAM.)
2-29
2-30 3E Main PCB error.
(Bus error in NVRAM.)
2-31
3F Write error in engine firmware.
2-31 40 Error in the high-voltage power
supply PCB while the printer is
in operation.
2-31
42 High-voltage power supply PCB
transfer error.
2-31
2-31 43 ASIC error of the main PCB.
2-32 44 The black toner cartridge is not
installed.
2-32
45 The yellow toner cartridge is not
installed.
2-33
46 The magentatoner cartridge is
not installed.
2-33
47 The cyan toner cartridge is not
installed.
2-33
48 Black drum unit is at the end of
life.
2-34
49 Yellow drum unit is at the end of
life.
2-34 4A Magenta drum unit is at the end
of life.
2-34
4B Cyan drum unit is at the end of
life.
2-34
2-35 4C The black drum unit will reach
the end of life soon.
4D The yellow drum unit will reach
the end of life soon.
2-35
2-11
Problem
Confidential
Refer
to:
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2-37
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