mp2550

[Guest]

i hv sc 220 can sombady help pls

[mabawser]

220 D Laser synchronization detection error: LD0
The laser synchronizing detection signal for
the start position of the LD was not output for
two sec. after LDB unit turned on with the
polygon motor rotating normally.
• Laser synchronizing detection
board harness loose or broken.
• Laser synchronization detection
board defective
• LDB unit defective

• IPU defective

thats the meaning in the manual so looking at the laser unit, hope this helps point you in the right direction