Brother HL-1060 - page 57

III-18

97-P-56

(2) Disconnect the eleven connectors from the PCB. (Three connectors have already

been disconnected when removing the scanner unit.)

(Name of the harnesses)

1. SW panel harness

2. Scan motor harness

3. Toner harness

4. Laser harness

5. Fan motor harness

7. Main connector

8. High-voltage flat cable

9. Erase lamp harness

10. SR harness

11. Solenoid harness

12. Main motor harness

13. Low-voltage harness

Fig. 3.28

Note 1: When reassembling, the cable connectors must be inserted securely into thePCB connectors and the PCB must not be stressed by the harnesses.Note 2: The connectors should be inserted by matching the housing color and thenumber of pins.

3.13 Low-voltage Power Supply PCB ASSY

(1) Remove the screw securing the low-voltage power supply PCB ASSY.

(2) Disconnect the two connectors for the heater harness and the LV harness from the

PCB.

Fig. 3.29

1

5438910 11 12

13

Driver PCB

ASSY

2

7

Main frame

LV harness

Screw

Low-voltage power supply ASSY

Heaterharness

Main cover

<200V only>

Contents

Main Page PREFACE CONTENTS CHAPTER I FEATURES AND SPECIFICATIONS..........................................I-1 CHAPTER IITHEORY OF OPERATION........................................................ II-1 CHAPTER IIIDISASSEMBLY AND REASSEMBLY.......................................III-1 CHAPTER IVMAINTENANCE AND TROUBLESHOOTING..........................IV-1 APPENDICES CHAPTER I FEATURES AND SPECIFICATIONS 1. FEATURES Page 2. SPECIFICATIONS Page Page Note: Face down: Deliver the printed face of the paper downward. Environment : 23C A ECE B D F Page 3. SAFETY INFORMATION Page CHAPTER II -1 CHAPTER II THEORY OF OPERATION Fig. 2.1 1. ELECTRONICS 1.1 General Block Diagram Fig. 2.1 shows a general block diagram of the HL-1060 printer. CHAPTER II -2 1.2 Main PCB Block Diagram Fig. 2.2 shows the block diagram of the main PCB. Fig. 2.2 Page Note: All the interrupts can be masked. CPU Receive Mode DMA Receive Mode Page Page Page Page Page Page Page Page (Heater) (Driver Circuit) CHAPTER II -15 Fig. 2.16 CHAPTER II -16 2. MECHANICS Fig. 2.18 2.1 Overview of Printing Mechanism Fig. 2.17 Page Page Page - +++++++++ ++ +++ ++ CHAPTER II -21 Fig. 2.27 Surface Potential (V) Page Page CHAPTER III DISASSEMBLY AND REASSEMBLY 1. SAFETY PRECAUTIONS III-2 2. DISASSEMBLY FLOW A B B C C 3. DISASSEMBLY PROCEDURE Page Page Page Page Page Page Page III-11 Fig. 3.17 Page Note: Never touch the surface of the halogen heater lamp. Page Page Page A Page Page Page Page III-22 3.18 Gears and Solenoid (1) Apply grease to the points shown below. Fig. 3.36 Note: Follow instructions below when applying the grease. Page 4. PACKING CHAPTER IV MAINTENANCE AND TROUBLESHOOTING 1. INTRODUCTION 2. CONSUMABLE PARTS Note: Toner life expectancy will vary depending on the type of average print job printed. Page CHAPTER IV -4 3. IMAGE DEFECTS Fig. 4.1 3.1 Image Defect Examples I-1 Light I-2 Dark I-3 Completely blank I-4 All black I-5 Dirt on the back of paper Note: Cleaning of the pressure roller I-6 Black vertical streaks Black and blurred vertical streaks I-7 Black and blurred horizontal stripes I-8 Black vertical streaks (in the gray background) I-9 White vertical streaks I-10 Faulty registration I-11 Poor fixing I-12 Image distortion I-13 Faint print I-14 White spots I-15 Black spots Note: Clean the drum unit as follows: Page I-16 Black bank I-17 Gray background Note: The following cases raise the possibility of this problem. I-18 Hollow print I-19 Downward fogging of solid black I-20 Horizontal lines I-21 Light rain Note: Make the printer in the light rain test mode as follows before checking; CHAPTER IV -19 3.3 Location of High-voltage Contacts and Grounding Contacts Fig. 4.6 Fig. 4.5 Grounding contacts Page 4. PAPER JAM Note: How to make the sensors 5. TROUBLESHOOTING MALFUNCTIONS M-1 No AC power supplied M-2 No DC power supplied M-3 Main motor unrotated M-4 No paper supplied M-5 Insufficient output from high-voltage power supply unit M-6 SR PCB failure M-7 Fixing heater temperature failure M-8 BD failure M-9 Scanner failure F-1 Double feeding F-2 Wrinkles 6. INSPECTION MODE Page Page APPENDIX 1. SERIAL NO. DESCRIPTIONS D 6 9 5 0 5 4 8 8 6 D 3 0 0 0 0 A N B 1 9 0 0 1 6 E B 0 0 0 0 0 1 6 3 3 1. 0 2 8 E 0 5. N B. 0 Appendix 2. Connection Diagram V - 2 Page Page Page Page Page Page Appendix 9. Low-voltage Power Supply PCB Circuit Diagram (110 - 120V) Low-voltage PS Circuit (110 - 240V) NAME V - 9 Appendix 10. Low-voltage Power Supply PCB Circuit Diagram (220 - 240V) Low-voltage PS Circuit (220 - 240V) NAME V - 10 V - 11 Appendix 11. High-voltage Power Supply PCB Circuit Diagram 12 CHG DEV