Brother HL-1060

CHAPTER II -8

1.3.5 DRAM

Four 4Mbit DRAM (x 8bit) are used as the printer memory.

Fig. 2.7

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