Brother International 9870 Service Manual - Page 177

[ 2 ] Error codes shown in the \, Engine PCB error. - machine error 76

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[ 2 ] Error codes shown in the "MACHINE ERROR X X " message Error Code X X (Hex.) ( 71 ( 72 ( 73 ( 74 ( 75 ( 76 ( 77 ( 78 ( 79 ( 7A ( 7B ( 7C ( 80 ( 82 ( 83 ( 84 ( 85 ( 86 ( 88 ( A1 ( A2 ( A3 ( A4 ( A7 ( A8 ( A9 ( AC Error factor Polygon motor does not synchronize with the reference clock. ) Cannot detect Beam Detect signal. ) No toner cartridge loaded. ) Toner empty. ) In-casing temperature error. ) Heater harness disconnected or broken. ) Heater thermistor short circuit.) Heater thermistor harness disconnected or broken. ) In-casing temperature sensor harness disconnected or broken. ) Main motor does not synchronize with the reference clock. ) ASIC error on the main PCB. ) Engine PCB error. ) Paper size setting error. ) Paper feeding error. ) Paper jam. The registration sensor, 2nd registration sensor, and/or manual insertion sensor remains ON.) Paper jam. The paper ejection sensor remains ON. ) No paper cassette loaded. ) No 2nd paper cassette loaded. ) Paper jam. Even after the registration sensor has gone OFF, the paper ejection sensor still stays OFF.) Front cover opened. ) Document too long to scan. ) Document not detected by the document rear sensor. ) 50% or more faulty of white level data. ) One-line feeding timeout error. ) One-line scanning timeout error. ) Abnormal scanning reference voltage. ) Less than 50% faulty of white level data. ) Error codes in parentheses do not appear in the "MACHINE ERROR X X", since those errors are displayed as messages described in "[ 1 ] Error messages on the LCD." In the maintenance mode (Function code 82), those error codes may be displayed. VI - 4

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VI
- 4
[ 2 ]
Error codes shown in the "MACHINE ERROR
X X
" message
Error Code
X X
(Hex.)
Error factor
( 71
Polygon motor does not synchronize with the reference clock. )
( 72
Cannot detect Beam Detect signal. )
( 73
No toner cartridge loaded. )
( 74
Toner empty. )
( 75
In-casing temperature error. )
( 76
Heater harness disconnected or broken. )
( 77
Heater thermistor short circuit.)
( 78
Heater thermistor harness disconnected or broken. )
( 79
In-casing temperature sensor harness disconnected or broken. )
( 7A
Main motor does not synchronize with the reference clock. )
( 7B
ASIC error on the main PCB. )
( 7C
Engine PCB error. )
( 80
Paper size setting error. )
( 82
Paper feeding error. )
( 83
Paper jam.
The registration sensor, 2nd registration sensor, and/or manual
insertion sensor remains ON.)
( 84
Paper jam.
The paper ejection sensor remains ON. )
( 85
No paper cassette loaded. )
( 86
No 2nd paper cassette loaded. )
( 88
Paper jam.
Even after the registration sensor has gone OFF, the paper
ejection sensor still stays OFF.)
( A1
Front cover 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 error. )
( A8
One-line scanning timeout error. )
( A9
Abnormal scanning reference voltage. )
( AC
Less than 50% faulty of white level data. )
Error codes in parentheses do not appear in the "MACHINE ERROR X X
", since those errors are
displayed as messages described in "[ 1 ] Error messages on the LCD."
In the maintenance mode
(Function code 82), those error codes may be displayed.