4-9
Samsung Electronics
Troubleshooting
OK after
taking out and
rocking the toner
cartridge?
It is over the guaranty
life of toner cartridge.
(Check the counter
and replace it.)
When gray
pattern printing,
irregular density
persists?
PTL lamp
works OK?
Any obstacles
on the PTL lamp?
Transfer/
charge/developing
voltage drops while
printing?
Defective agitator in
the toner supplying part
of developer.
->Replace the developer.
Check if the ’guide deve
spring’ works OK and
repair/repalce.
Check high voltage
output and repair/
replace terminals/HVPS.
Replace lamp.
Clean the window of PTL.
Bad images
aroung the no image
area?
Irregualrity of toner
suppy from developer.
-> Replace developer.
Light distortion due to
the mirror ruined or
LSU’s diffused reflection.
-> Replace LSU.
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
4-2-9 Irregular Density
Summary of Contents for ML-5200A
Page 50: ...5 14 Samsung Electronics Exploded Views and Parts List MEMO ...
Page 63: ...PCB Diagrams Samsung Electronics 9 5 9 5 HVPS PCB Diagram TOP ...
Page 68: ...MEMO Samsung Electronics 8 2 ...
Page 69: ...10 1 Main Circuit Diagram 1 9 Samsung Electronics 10 1 10 Schematic Diagrams ...
Page 70: ...Schematic Diagrams 10 2 Samsung Electronics Main Circuit Diagram 2 9 ...
Page 71: ...Main Circuit Diagram 3 9 Samsung Electronics 10 3 Schematic Diagrams ...
Page 72: ...Schematic Diagrams 10 4 Samsung Electronics Main Circuit Diagram 4 9 ...
Page 73: ...Main Circuit Diagram 5 9 Samsung Electronics 10 5 Schematic Diagrams ...
Page 74: ...Schematic Diagrams 10 6 Samsung Electronics Main Circuit Diagram 6 9 ...
Page 75: ...Main Circuit Diagram 7 9 Samsung Electronics 10 7 Schematic Diagrams ...
Page 76: ...Schematic Diagrams 10 8 Samsung Electronics Main Circuit Diagram 8 9 ...
Page 77: ...Main Circuit Diagram 9 9 Samsung Electronics 10 9 Schematic Diagrams ...
Page 78: ...Schematic Diagrams 10 10 Samsung Electronics 10 2 Engine Circuit Diagram 1 2 ...
Page 79: ...Engine Circuit Diagram 2 2 Samsung Electronics 10 11 Schematic Diagrams ...
Page 80: ...Schematic Diagrams 10 12 Samsung Electronics 10 3 SMPS Circuit Diagram ...
Page 81: ...10 4 SENSOR Circuit Diagram Samsung Electronics 10 13 Schematic Diagrams ...
Page 82: ...Schematic Diagrams 10 14 Samsung Electronics 10 5 PTL Circuit Diagram ...
Page 83: ...10 6 HVPS Circuit Diagram 1 3 Samsung Electronics 10 15 Schematic Diagrams ...
Page 84: ...Schematic Diagrams 10 16 Samsung Electronics HVPS Circuit Diagram 2 3 ...
Page 85: ...HVPS Circuit Diagram 3 3 Samsung Electronics 10 17 Schematic Diagrams ...