3-25
Confidential
■
REPLACE TONER
Toner life end is detected. Developer count full.
■
TONER LOW
Low on toner.
■
MAIN PCB FAILURE
<User Check>
- Replace the toner cartridge.
Step
Cause
Remedy
1
Harness connection failure of
toner sensor PCB ASSY
Check the sensor performance following
the procedure in
in 1.3 Service Mode in Chapter 7
If any problem occurs, check the harness
connection of the toner sensor PCB ASSY,
then reconnect it.
2
Toner sensor PCB ASSY failure
Replace the toner sensor PCB ASSY.
3
Panel PCB ASSY failure
Replace the panel PCB ASSY.
4
Main PCB ASSY failure
Replace the main PCB ASSY.
<User Check>
- Replace the toner cartridge.
Step
Cause
Remedy
1
Harness connection failure of
toner sensor PCB ASSY
Check the sensor performance following
the procedure in
in 1.3 Service Mode in Chapter 7
If any problem occurs, check the harness
connection of the toner sensor PCB ASSY,
then reconnect it.
2
Toner sensor PCB ASSY failure
Replace the toner sensor PCB ASSY.
3
Panel PCB ASSY failure
Replace the panel PCB ASSY.
4
Main PCB ASSY failure
Replace the main PCB ASSY.
<User Check>
- Turn the power off and on.
Step
Cause
Remedy
1
Bug in the software
Reinstall the latest firmware.
2
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for HL 5370DW
Page 12: ...CHAPTER 1 SPECIFICATIONS ...
Page 32: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Page 57: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Page 109: ...Confidential CHAPTER 4 PERIODIC MAINTENANCE ...
Page 145: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Page 153: ...5 6 Confidential Fig 5 3 EM D110 4 places Separation pad ASSY ...
Page 154: ...5 7 Confidential 5 GEAR LAYOUT DRAWING Fig 5 4 ...
Page 213: ...5 66 Confidential 3 Remove the Gear 17 black Fig 5 86 4 Remove the Gear 17 white Fig 5 87 ...
Page 261: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...