Service Manual
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......II-18 2.2.3 Paper Eject ...II-19 2.3 Sensors...II-20 2.3.1 Cover Sensor...II-20 2.3.2 Toner Empty Sensor...II-20 2.4 Drum Unit...II-21 2.4.1 Photosensitive Drum...II-21 2.4.2 Primary Charger ...II-21 2.4.3 Developer Roller ...II-21 2.4.4 Transfer Roller ...II-21 2.4.5 Cleaner Roller...II-21 2.4.6...-21 2.5 Print Process...II-21 2.5.1 Charging ...II-21 2.5.2 Exposure Stage ...II-22 2.5.3 Developing...II-23 2.5.4 Transfer ...II-23 2.5.5 Drum Cleaning Stage II-24 2.5.6 Erasing Stage ...II-24 2.5.7 Fixing Stage...II-24 CHAPTER III DISASSEMBLY AND REASSEMBLY III-1 1. DISASSEMBLY FLOW...III-2 3. ...
......II-18 2.2.3 Paper Eject ...II-19 2.3 Sensors...II-20 2.3.1 Cover Sensor...II-20 2.3.2 Toner Empty Sensor...II-20 2.4 Drum Unit...II-21 2.4.1 Photosensitive Drum...II-21 2.4.2 Primary Charger ...II-21 2.4.3 Developer Roller ...II-21 2.4.4 Transfer Roller ...II-21 2.4.5 Cleaner Roller...II-21 2.4.6...-21 2.5 Print Process...II-21 2.5.1 Charging ...II-21 2.5.2 Exposure Stage ...II-22 2.5.3 Developing...II-23 2.5.4 Transfer ...II-23 2.5.5 Drum Cleaning Stage II-24 2.5.6 Erasing Stage ...II-24 2.5.7 Fixing Stage...II-24 CHAPTER III DISASSEMBLY AND REASSEMBLY III-1 1. DISASSEMBLY FLOW...III-2 3. ...
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INTRODUCTION...IV-1 1.1 Initial Check ...IV-1 1.2 Basic Procedure...IV-2 2. CONSUMABLE PARTS ...IV-2 2.1 Drum Unit...IV-2 2.2 Toner Cartridge...IV-2 2.3 Periodical Replacement Parts...IV-3 3. PAPER JAM...IV-21 5. TROUBLESHOOTING MALFUNCTIONS IV-22 6. Main PCB Circuit Diagram, (3/5 A-5 6. Switch Panel/Solenoid, Bin/...
INTRODUCTION...IV-1 1.1 Initial Check ...IV-1 1.2 Basic Procedure...IV-2 2. CONSUMABLE PARTS ...IV-2 2.1 Drum Unit...IV-2 2.2 Toner Cartridge...IV-2 2.3 Periodical Replacement Parts...IV-3 3. PAPER JAM...IV-21 5. TROUBLESHOOTING MALFUNCTIONS IV-22 6. Main PCB Circuit Diagram, (3/5 A-5 6. Switch Panel/Solenoid, Bin/...
Service Manual
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...drum unit. I-2 Versatile Paper Handling The printer has two multi-purpose sheet feeders and a straight paper path mechanism. From the rear Feeder 2 you can load A4, letter, legal, B5 and executive sizes of these emulations to obtain draft copies for DOS The utility program, Remote Printer... of media including envelopes, postcards, organizer paper, or your printing cost by saving toner. Popular Printer Emulation Support This printer supports four printer emulation modes, HP LaserJet 6P, Brother BR-Script Level 2, Epson FX-850, and IBM Proprinter XL. From the front Feeder 1,...
...drum unit. I-2 Versatile Paper Handling The printer has two multi-purpose sheet feeders and a straight paper path mechanism. From the rear Feeder 2 you can load A4, letter, legal, B5 and executive sizes of these emulations to obtain draft copies for DOS The utility program, Remote Printer... of media including envelopes, postcards, organizer paper, or your printing cost by saving toner. Popular Printer Emulation Support This printer supports four printer emulation modes, HP LaserJet 6P, Brother BR-Script Level 2, Epson FX-850, and IBM Proprinter XL. From the front Feeder 1,...
Service Manual
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SPECIFICATIONS 2.1 Printing Print method Electrophotography by semiconductor laser beam scanning Resolution 1200 (H) x 600 (V) dpi (for Windows DIB graphics) 600 x 600dpi (for Windows / DOS) 300 x 300dpi (under Apple Macintosh using optional RS...pages/drum unit (4% coverage, continuous printing) at 20 pages per job 8,000 pages at 1 page per job Fujitsu MB86831 66Mhz Emulation Automatic emulation selection among HP LaserJet 5P, EPSON FX-850, and IBM Proprinter XL BR-Script Printer driver Windows 95 / WindowsTM 3.1/3.11 driver, supporting Brother Printing Solution for Windows, Brother ...
SPECIFICATIONS 2.1 Printing Print method Electrophotography by semiconductor laser beam scanning Resolution 1200 (H) x 600 (V) dpi (for Windows DIB graphics) 600 x 600dpi (for Windows / DOS) 300 x 300dpi (under Apple Macintosh using optional RS...pages/drum unit (4% coverage, continuous printing) at 20 pages per job 8,000 pages at 1 page per job Fujitsu MB86831 66Mhz Emulation Automatic emulation selection among HP LaserJet 5P, EPSON FX-850, and IBM Proprinter XL BR-Script Printer driver Windows 95 / WindowsTM 3.1/3.11 driver, supporting Brother Printing Solution for Windows, Brother ...
Service Manual
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...% (non condensing) 10 to 85% (non condensing) Dimensions (W x D x H) 402 (W) x 439 (D) x 274 (H) mm (when the output tray is closed.) Weight Approx. 9.6kg (21.2lb.) including the drum unit and toner cartridge Note: N The peak figure of power consumption is worked out when the halogen heater lamp is reference value and should be...
...% (non condensing) 10 to 85% (non condensing) Dimensions (W x D x H) 402 (W) x 439 (D) x 274 (H) mm (when the output tray is closed.) Weight Approx. 9.6kg (21.2lb.) including the drum unit and toner cartridge Note: N The peak figure of power consumption is worked out when the halogen heater lamp is reference value and should be...
Service Manual
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... Engine Control Block Operation Block (Operation Panel) Erase Lamp Laser Scanner Unit Drum Unit Transfer Block Drive Block (Stepping Motor) Paper Tray Unit Paper Feeder Manual Feed Developing Block Drum Charging Block Cleaner Block Toner Cartridge Image Generation System Fig.... 2.1 Fixing Unit Paper Eject Block Paper Feed System II-1 External Device CHAPTER II THEORY OF OPERATION 1. ELECTRONICS 1.1 General Block Diagram Fig. 2.1 shows a general block diagram of the HL-1070 printer.
... Engine Control Block Operation Block (Operation Panel) Erase Lamp Laser Scanner Unit Drum Unit Transfer Block Drive Block (Stepping Motor) Paper Tray Unit Paper Feeder Manual Feed Developing Block Drum Charging Block Cleaner Block Toner Cartridge Image Generation System Fig.... 2.1 Fixing Unit Paper Eject Block Paper Feed System II-1 External Device CHAPTER II THEORY OF OPERATION 1. ELECTRONICS 1.1 General Block Diagram Fig. 2.1 shows a general block diagram of the HL-1070 printer.
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1.6.2 High-voltage Power Supply, SR PCB This generates and outputs the voltages and currents for the charging, development and transfer functions. 24VI IC PROTECTOR IP001 Current Regulator T101 Voltage Regulator VR201 VR202 Current Regulator T601 Q602 Current Regulator T1 24VI GND 24VI GND Supply Roller Transfer Roller Developing Roller Photosensitive Drum Cleaner Roller Corona Unit Voltage Regulator GND T701 Q702 PAPER SENSOR PC001 Voltage Regulator Z301 VR301 Voltage Regulator VR401 Voltage Regulator VR501 Fig. 2.18 II-16
1.6.2 High-voltage Power Supply, SR PCB This generates and outputs the voltages and currents for the charging, development and transfer functions. 24VI IC PROTECTOR IP001 Current Regulator T101 Voltage Regulator VR201 VR202 Current Regulator T601 Q602 Current Regulator T1 24VI GND 24VI GND Supply Roller Transfer Roller Developing Roller Photosensitive Drum Cleaner Roller Corona Unit Voltage Regulator GND T701 Q702 PAPER SENSOR PC001 Voltage Regulator Z301 VR301 Voltage Regulator VR401 Voltage Regulator VR501 Fig. 2.18 II-16
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... Feeder 1 Papers Hopper Plate Manual Paper Path MP Feeder 1 Cover Paper Pick-up Roller Paper Feed Roller Drum Unit Pitch Roller Blade Photosensitive Drum Transfer Roller Erase Lamp Fixing Unit Pressure Roller Paper Pick-up Roller Pinch Roller Hopper Plate Paper Feed Roller... Registration Sensor Lever Toner Cartridge Polygon Mirror Toner Laser Scanner Empty Sensor Supply Roller Eject Roller Eject Sensor Actuator...
... Feeder 1 Papers Hopper Plate Manual Paper Path MP Feeder 1 Cover Paper Pick-up Roller Paper Feed Roller Drum Unit Pitch Roller Blade Photosensitive Drum Transfer Roller Erase Lamp Fixing Unit Pressure Roller Paper Pick-up Roller Pinch Roller Hopper Plate Paper Feed Roller... Registration Sensor Lever Toner Cartridge Polygon Mirror Toner Laser Scanner Empty Sensor Supply Roller Eject Roller Eject Sensor Actuator...
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..., the registration sensor lever is caused to turn its rotation is transported to the paper feed roller. Paper Pinch roller Transfer roller Paper feed roller Drum Clutch mechanism (engaged/released by the solenoid action and the sector gear is OFF. 2.2 Paper Transfer 2.2.1 Paper Supply The pick-up roller picks up one...
..., the registration sensor lever is caused to turn its rotation is transported to the paper feed roller. Paper Pinch roller Transfer roller Paper feed roller Drum Clutch mechanism (engaged/released by the solenoid action and the sector gear is OFF. 2.2 Paper Transfer 2.2.1 Paper Supply The pick-up roller picks up one...
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Transfer roller Pressure roller Eject sensor actuator Eject roller Drum Heat roller Fig. 2.23 Eject sensor actuator ,, Sensor Paper High-voltage power supply PCB Eject sensor actuator Fig. 2.24 Sensor II-19 2.2.3 Paper Eject The ...
Transfer roller Pressure roller Eject sensor actuator Eject roller Drum Heat roller Fig. 2.23 Eject sensor actuator ,, Sensor Paper High-voltage power supply PCB Eject sensor actuator Fig. 2.24 Sensor II-19 2.2.3 Paper Eject The ...
Service Manual
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Toner empty sensor Fig. 2.26 II-20 2.3 Sensors 2.3.1 Cover Sensor Detects opening and closing of the top cover. It also detects whether or not the drum unit is installed. (The toner cartridge is toner in the drum unit). Top cover Cover switch Fig. 2.25 2.3.2 Toner Empty Sensor Detects if there is installed in the toner cartridge.
Toner empty sensor Fig. 2.26 II-20 2.3 Sensors 2.3.1 Cover Sensor Detects opening and closing of the top cover. It also detects whether or not the drum unit is installed. (The toner cartridge is toner in the drum unit). Top cover Cover switch Fig. 2.25 2.3.2 Toner Empty Sensor Detects if there is installed in the toner cartridge.
Service Manual
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...-voltage power supply applied to it is distributed evenly on the drum. 2.5 Print Process 2.5.1 Charging The drum is charged to approx. +1000V by an ion charge which has a DC bias from the printer is generated by the primary charger. II-21 The drum sleeve is regulated to approx. 280V by the voltage regulator. 280V...
...-voltage power supply applied to it is distributed evenly on the drum. 2.5 Print Process 2.5.1 Charging The drum is charged to approx. +1000V by an ion charge which has a DC bias from the printer is generated by the primary charger. II-21 The drum sleeve is regulated to approx. 280V by the voltage regulator. 280V...
Service Manual
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... positively charged, it is the image to be printed. The surface potential of drum 1 2 34 (a) +400 Drum +300 Sleeve (b) Time Fig. 2.29 1 Primary charging 2 Laser beam exposure and developing (a) Unexposed area ( Non image area ) (b) Exposed area ( Image area ) 3 Transfer the image to paper 4 Erase the ...Surface Potential (V) +1000 +700 1 Cycle of the exposed area is reduced forming the electrostatic image to the light emitted from the laser unit. Drum Laser Beam Laser detector Laser diode Lens Paper Laser beam f lens Polygon mirror Motor Fig. 2.28 The area exposed to the...
... positively charged, it is the image to be printed. The surface potential of drum 1 2 34 (a) +400 Drum +300 Sleeve (b) Time Fig. 2.29 1 Primary charging 2 Laser beam exposure and developing (a) Unexposed area ( Non image area ) (b) Exposed area ( Image area ) 3 Transfer the image to paper 4 Erase the ...Surface Potential (V) +1000 +700 1 Cycle of the exposed area is reduced forming the electrostatic image to the light emitted from the laser unit. Drum Laser Beam Laser detector Laser diode Lens Paper Laser beam f lens Polygon mirror Motor Fig. 2.28 The area exposed to the...
Service Manual
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...the development roller to a positive voltage during non-printing rotation of conductive sponge rotate against each other. The toner is nipped between the drum and the development roller, which is also made of conductive rubber and the supply roller which is DC-biased from the high-voltage ... paper perfectly, it into a visible image. The negative charge applied to the paper causes the positively charged toner to leave the drum, and adhere to the drum at an even thickness controlled by returning the positive charged toner adhered on the paper. (b) Cleaning process of the paper. The ...
...the development roller to a positive voltage during non-printing rotation of conductive sponge rotate against each other. The toner is nipped between the drum and the development roller, which is also made of conductive rubber and the supply roller which is DC-biased from the high-voltage ... paper perfectly, it into a visible image. The negative charge applied to the paper causes the positively charged toner to leave the drum, and adhere to the drum at an even thickness controlled by returning the positive charged toner adhered on the paper. (b) Cleaning process of the paper. The ...
Service Manual
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...the light emitted from the erase lamp. (LED lamp) This stage prepares the drum by decreasing its surface voltage uniformly, ready to the drum when starting or non-printing time. In the drum cleaning stage, the drum surface is cleaned by detecting the surface temperature of the heat roller constant by the... cleaning roller, so that residual toner on the drum surface is removed and collected on the cleaning roller itself. The residual toner on the cleaning roller will be discharged to receive uniform...
...the light emitted from the erase lamp. (LED lamp) This stage prepares the drum by decreasing its surface voltage uniformly, ready to the drum when starting or non-printing time. In the drum cleaning stage, the drum surface is cleaned by detecting the surface temperature of the heat roller constant by the... cleaning roller, so that residual toner on the drum surface is removed and collected on the cleaning roller itself. The residual toner on the cleaning roller will be discharged to receive uniform...
Service Manual
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DISASSEMBLY FLOW III-2 1 DRUM UNIT B 2 OUTPUT TRAY ASSY 3 TOP COVER A BOTTOM 10 MAIN PCB ASSY B 11 BASE PLATE ASSY 12 DRIVER PCB 4 5 MP SHEET FEEDER ASSY 6 UNDER SHOOT ASSY 8 FIXING UNIT 7 SR PCB / RELAY PCB C 9 SCANNER UNIT A 19 PAPER SUPPORT 20 EXTENSION SUPPORT WIRE 13 LOW-VOLTAGE PS PCB ASSY C 16 DRIVE UNIT 17 MAIN MOTOR ASSY 18 GEARS and SOLENOID 14 HIGH-VOLTAGE PS PCB ASSY 15 FAN MOTOR 2.
DISASSEMBLY FLOW III-2 1 DRUM UNIT B 2 OUTPUT TRAY ASSY 3 TOP COVER A BOTTOM 10 MAIN PCB ASSY B 11 BASE PLATE ASSY 12 DRIVER PCB 4 5 MP SHEET FEEDER ASSY 6 UNDER SHOOT ASSY 8 FIXING UNIT 7 SR PCB / RELAY PCB C 9 SCANNER UNIT A 19 PAPER SUPPORT 20 EXTENSION SUPPORT WIRE 13 LOW-VOLTAGE PS PCB ASSY C 16 DRIVE UNIT 17 MAIN MOTOR ASSY 18 GEARS and SOLENOID 14 HIGH-VOLTAGE PS PCB ASSY 15 FAN MOTOR 2.
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Output Tray Main Cover Fig. 3.2 III-3 Output Tray DISASSEMBLY PROCEDURE 3.1 Drum Unit (1) Open the top cover. (2) Lift out the drum unit. Drum Unit Top Cover Main Cover Fig. 3.1 3.2 Output Tray ASSY (1) Press the hinges at the left and right ends of the output tray inwards to release the output tray from the main cover. 3.
Output Tray Main Cover Fig. 3.2 III-3 Output Tray DISASSEMBLY PROCEDURE 3.1 Drum Unit (1) Open the top cover. (2) Lift out the drum unit. Drum Unit Top Cover Main Cover Fig. 3.1 3.2 Output Tray ASSY (1) Press the hinges at the left and right ends of the output tray inwards to release the output tray from the main cover. 3.
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... grease which smears your fingers will stick to the separation pad or the paper pick-up roller, and then spread to the paper and the drum unit.
... grease which smears your fingers will stick to the separation pad or the paper pick-up roller, and then spread to the paper and the drum unit.
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Base Plate ASSY Ground wire Screw Fig. 3.25 Low-voltage Power Supply PCB ASSY III-15 3.11 Base Plate ASSY Note: Prior to turning the printer upside-down, ensure that the drum unit has been removed from the printer. (1) Turn the printer upside down. (2) Remove the five M4 and four M3 self tapping screws and one screw. Taptite, cup M3x2 Taptite, bind M4x2 Taptite, cup M3x2 Screw Taptite, cup M3x2 Base Plate ASSY Soundproof Sponge Fig. 3.24 (3) Lift the base plate ASSY and remove the grounding screw.
Base Plate ASSY Ground wire Screw Fig. 3.25 Low-voltage Power Supply PCB ASSY III-15 3.11 Base Plate ASSY Note: Prior to turning the printer upside-down, ensure that the drum unit has been removed from the printer. (1) Turn the printer upside down. (2) Remove the five M4 and four M3 self tapping screws and one screw. Taptite, cup M3x2 Taptite, bind M4x2 Taptite, cup M3x2 Screw Taptite, cup M3x2 Base Plate ASSY Soundproof Sponge Fig. 3.24 (3) Lift the base plate ASSY and remove the grounding screw.
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... 32.5°C. If blank spots occur on printouts, take out the drum unit and slowly rock it to redistribute the toner evenly.] (4) Others Condensation: When the printer is moved from the rated voltage shown on the rating plate. • The printer is installed on a solid, level surface. • The room ... or other harmful gases. • The printer is not located in a hot or humid area (such as the scanning mirror, lenses, the reflection mirror and the protection glass may cause the print image to be light. • If the photosensitive drum is cold, the electrical resistance of print ...
... 32.5°C. If blank spots occur on printouts, take out the drum unit and slowly rock it to redistribute the toner evenly.] (4) Others Condensation: When the printer is moved from the rated voltage shown on the rating plate. • The printer is installed on a solid, level surface. • The room ... or other harmful gases. • The printer is not located in a hot or humid area (such as the scanning mirror, lenses, the reflection mirror and the protection glass may cause the print image to be light. • If the photosensitive drum is cold, the electrical resistance of print ...