3-17
Confidential
■
DRUM END SOON
The drum unit reached 90% of the time for replacement.
■
DRUM ERROR
Dirt on drum unit.
<User Check>
- Replace the drum unit with a new one.
- Reset the counter. (Refer to
2.2 Reset Parts Life Menu in Chapter 7.
)
<User Check>
- Clean the corona wire in the drum unit.
- Replace the drum unit with a new one, and reset the drum counter.
Step
Cause
Remedy
1
Dirt or dust on drum unit
electrodes
Clean the electrodes on the drum unit and
the machine body (Refer to
2
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB.
3
Main PCB ASSY failure
Replace the main PCB ASSY failure.
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 ...