![Oki B721 Maintenance Manual Manual pdf 67 page image](https://manuals-archive2.s3.amazonaws.com/5402066/42b46b0a2331e70049111c112a7170da67f.jpg)
45487001TH Rev.1 3-11 /Oki Data CONFIDENTIAL3. Component replacement3.2.11 HV-Board / Motor-FAN(1) Remove the Cover-Rear-Blind. (Refer to 3.2.3)(2) Remove the Cover-Side-L. (Refer to 3.2.4)(3) Remove the three screws (silver) ① and the two screws (black) ② , disengagethe claw, and remove HV-Board ③. Be careful not to lose the Spring-Contact ④.(4) Disconnect all cables from the HV-Board ③ .(5) Remove the two screws (silver/28mm) ⑤ , and remove the Motor-FAN ⑥ .Note! 1. Be careful to install the Motor-FAN ⑥ in the proper direction.5Claw3.2.12 LED Assy(1) Remove the ID unit. (Refer to 3.2.1)(2) While pushing the LED Assy ① in the direction of the arrow (a), unhook the partA by pulling it in the direction of the arrow (b).(3) Remove the LED Assy ① , and disconnect the FFC cable from it.Aab