Brother International HL-2600CN Service Manual - Page 80

(1) Print PCB (Refer to Fig. 4-29.) No. Name Function 1 Video Controller PCB To receive the print data from the host computer, convert it into image data and then send the printing image data to the MCTL PWB 2. To control the sequence of processes of the printer: Fusing Temperature Control, Laser Output 2 MCTL PWB 2 Control, Control Panel Indications, Toner Empty Sensing Control, Error Processing Control, Interface Control. 3 Panel PWB To display the printer's operation status and support the control panel switches. 4 LDU PCB To control the drive and output to the laser diode in the scanner unit. 5 PDU PCB To sense the emission of the laser diode and the beam position in the scanner unit. 6 Erase Lamp To discharge the OPC belt with the LEDs. To send the signals from the sensors to the MCTL 7 IOD1 PWB 2 PWB 2, and to drive the outputs from the MTCL PWB 2 to the motors, clutches and solenoids. 8 IOD2 PWB 2 - Ditto - 9 DC Power Supply (LVPS) PCB To provide the printer with the power for printer control. 10 High-voltage Power To provide the printer with the high voltage power Supply (HVU) PCB supplies necessary for the printing process. 3. Panel PWB 8. IOD2 PWB 2 7. IOD1 PWB 2 10. High-voltage Power Supply (HVU) PCB 1. Video Control PCB 6. Erase Lamp 2. MCTL PWB 2 9. DC Power Supply (LVPS) PCB 4. LDU PCB 5. PDU PCB Fig.4-29 IV-29