2-94
Confidential
■
Error code 9903
An error occurred during patch data printing in manual color registration performed from the
control panel.
<User Check>
• Check if the toner cartridges are set in the correct order of colors.
• Replace the toner cartridge.
• Replace the drum unit.
• If the belt unit has a scratch, replace it.
• If “WT Box End Soon” is displayed on the LCD and the belt unit has dirt, replace the waste
toner box.
Step
Cause
Remedy
1
Dirt on the registration mark
sensor L / registration mark
sensor R
Clean the registration mark sensor L /
registration mark sensor R.
2
Connection failure of the
registration mark sensor L /
registration mark sensor R
harness
Reconnect the registration mark sensor L /
registration mark sensor R harness.
3
Failure in printed measurement
If failure occurs when printing “K/W/Y/M/
C” in
Troubleshooting for Image Defects” in this
chapter
and take a measure.
4
Registration mark sensor L or
registration mark sensor R failure
Replace the registration mark sensor
ASSY.
5
Main PCB failure
Replace the main PCB.
Summary of Contents for DCP-L3510CDW
Page 46: ...2 10 Confidential 2 2 2 Scanner part Fig 2 6 Left side Right side Document feed path ...
Page 155: ...2 119 Confidential Electrodes location of belt unit Fig 2 16 ...
Page 193: ...3 2 Confidential 2 PACKING Pad upper R Pad upper L Carton Pad bottom Option carton upper ...
Page 204: ...3 13 Confidential 5 Panel unit Key flat cable ...
Page 213: ...3 22 Confidential 14 Process drive unit Paper feed motor flat cable ...
Page 362: ...5 34 Confidential Print adjustment test pattern Fig 5 8 ...