Maintenance & Troubleshooting
WorkCentre Pro 412, FaxCentre F12 &
3/03
7-15
WorkCentre M15/M15i
7-5 Print Quality
Error Status
Check
Solution
Vertical black line and
band
1. Damaged blade of Toner cartridge
2. LSU
1. Change Toner cartridge
2. Replace LSU
Vertical white line
1. LSU window contamination
2. Toner cartridge
1. Clean LSU window
2. If not LSU, change Toner cartridge.
No image
1. Seal tape is removed?
2. GND OPC is well grounded?
3. LSU running well?
4. Biss voltage is normal?
5. Low toner?
6. Is there video data from Main PBA
1. Remove seal tape
2. Measure the resistance between frame
ground and the ground spring attached to
the frame. If necessary, detach cabinet, to
correct the ground problem
3. Adjust LSU or replace it
4. Normal Dev bias = -350V
5. Shake toner cartridge and print.If there is a
small improvement, the toner is empty,
install new toner cartridge/
6. Test engine test pattern, replace Main PBA
Light image
1. Check seal tape removing
2. LSU light power normal?
3. Enough toner?
4. High charger voltage?
5. Lower bias voltage
6. Contamination of high voltage contact.
1. Check and remove tape
2. LSU light power check is difficult.
Compare with new one and check.
3. Check toner and developer counter
4~5. Measure all high voltage outputs.
6. Leaking toner can cause bad electrical
contact and increase contact resistance.
Clean contaminated area.
Dark image
1. LSU light power normal?
2. Bias voltage output is high?
3. Video data is always supplied?
1. Check the rated level and replace.
2. Set to power rating.
3. Replace defective board.
Summary of Contents for FaxCentre F12
Page 8: ...Table of Contents TOC 6 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 44: ...Circuit Description 5 6 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 45: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 7 WorkCentre M15 M15i ...
Page 46: ...Circuit Description 5 8 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 47: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 9 WorkCentre M15 M15i ...
Page 48: ...Circuit Description 5 10 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 49: ...Circuit Description WorkCentre Pro 412 FaxCentre F12 3 03 5 11 WorkCentre M15 M15i ...
Page 50: ...Circuit Description 5 12 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 170: ...Disassembly and Reassembly 6 58 3 03 WorkCentre Pro 412 FaxCentre F12 WorkCentre M15 M15i ...
Page 380: ...XEROX EUROPE ...