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LED Page Printers Service Manual
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Service Guide OL600e/610e/610ePS
Chapter 0 About This Manual
OL600e / OL610e / OL610ePS Series
LED Page Printers
Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual. 09/17/97
Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 300 dpi, which is ideal for printing, but does not view on most displays well.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
Table of Contents
Page
Service Guide OL600e/610e/610ePS
0 About This Manual Front Cover Trademark Information Preface 1 Configuration 1.1 System Configuration 1.2 Printer Configuration 1.3 Optional Configuration 1.4 Specification 1.5 Safety Standards - 1.5.1 Certification Label ....1.5.2 Warning Labels ....1.5.3 Warning/Caution Markings 2 Operation Description Operation Description ....Figure 2-2 OL610e Block Diagram ....Figure 2-3 OL610e/PS Block Diagram 2.1 Control Board 2.2 PS Board (OL610e/PS) 2.3 Power Supply Board 2.4 Electrophotographic Process - 2.4.1 Electrophotographic Process Mechanism ....2.4.2 Electrophotographic Process ....2.4.3 Process Operation Descriptions - Hopping and Feeding ........Charging ........Exposure ........Developing ........Transfer ........Fusing ........Cleaning ........Cleaning of rollers 2.5 Paper Jam Detection 2.6 Cover Open 2.7 Toner Low Detection 3 Parts Replacement 3.1 Precautions for Parts Replacement 3.2 Parts Layout - [Lower base unit] ....Upper cover unit ....Base unit 3.3 How to Change Parts ....3.3.1 Upper Cover ....3.3.2 Stacker 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
Table of Contents ....3.3.3 LED Head ....3.3.4 Eject Roller Assy ....3.3.5 Pulse Motor (Main) ....3.3.6 Pulse Motor (Registration) ....3.3.7 Lower Base Unit ....3.3.8 Motor Assy ....3.3.9 Hopping Roller Assy ....3.3.10 Stacker Cover Assy ....3.3.11 Registration Roller ....3.3.12 Transfer Roller ....3.3.13 Fusing Unit Assy ....3.3.14 Fusing Pressure Roller ....3.3.15 Sensor Plate (Inlet) ....3.3.16 Toner Sensor (Adhesion) ....3.3.17 Sensor Plate (Outlet) ....3.3.18 Manual Feed Guide Assy ....3.3.19 Sensor Plate (Paper Supply) ....3.3.20 Main Control PCB ....3.3.21 Power Supply Board and Contact Assy ....3.3.22 Transformer ....3.3.23 Cassette Guide L ....3.3.24 Cassette Guide R 4 Adjustments 4.1 Maintenance Menus and Functions 4.2 Adjustment When Replacing a Part 5 Periodical Maintenance 5.1 Periodical Replacement Parts 5.2 Cleaning 5.3 Lubrication 6 Troubleshooting 6. Troubleshooting - 6.1 Troubleshooting Tips 6.2 Points to Check before Correcting Image Problems 6.3 Tips for Correcting Image Problems 6.4 Preparation for Troubleshooting 6.5 Troubleshooting Flow ....6.5.1 Status Message/Trouble List ........Status Message/Trouble List - Continued ........Status Message/Trouble List - Continued ....6.5.2 Message Troubleshooting ........1 The printer does not work normally after the power is turned on. ........[JAM error] 2-1 Paper input jam ........[JAM error] 2-2 Paper feed jam ........[JAM error] 2-3 Paper exit jam
Page 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
Table of Contents ........3 Paper size error ........4 Fusing unit error (ERROR 71) (ERROR 72) (ERROR 73) ........5 Fan error (ERROR 70) ....6.5.3 Image Troubleshooting ........1 Images are light or blurred entirely. ........2 Dark background density ........3 Blank paper is output. ........4 Black vertical belts or stripes ........5 Cyclic error ........6 Print voids ........7 Poor fusing ........8 White vertical belts or streaks 7 Wiring Diagrams 7.1 Interconnect Signal Diagram 7.2 PCB Layout and Connector Signal List - (1) Control Board ....(2) Power Supply Board ....(3) PS Board (LQ8A- ) (OL610e/PS) ........CN1 Pin Assignment To Fan motor ........CN2 Pin Assignment To Drum motor ........CN3 Pin Assignment To Registration motor ........CN4 Pin Assignment To LED head ........CN6 Pin Assignment To Option feeder ........Power Pin Assignment ........CN8 Pin Assignment ........CN11 Pin Assignment ........PS Board (OL610e/PS) ........PS Board (OL610e/PS) 7.3 Resistance Check 7.4 Short Plug Setting 8 Parts List 8.1 Lower Base Unit 8.2 Upper cover unit 8.3 Base unit A Centronics Parallel Interface Centronics Parallel Interface B Local Talk (RS422) Serial Interface (OL610e/PS only) Appendix B LOCALTALK (RS422) SERIAL INTERFACE (OL610e/PS only) ....a) LocalTalk « RS422 switching ....b) RS422 I/F parameter setting C Software Diagnostics and Adjustments 1. Maintenance Menus OL610e/PS ....1.2 System Maintenance Menu
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Table of Contents ....1.3 Engine Maintenance Menu ....1.4 Factory User Setting Operation 2. DOS Software Operating PanelOL600e & OL610e - 2.1 Settings Tab ....2.2 Service Tab ? D Multi-Purpose Feeder Maintenance PREFACE Multi-Purpose Feeder Maintenance Preface Table of Contents 1. OUTLINE 2. MECHANISM DESCRIPTION 3. PARTS REPLACEMENT - 3.1 Precautions Concerning Parts Replacement ....3.2 Parts Layout ....3.3 Parts Replacement Methods - 3.3.1 Link ........3.3.2 Separator ........3.3.3 OLEV-11 PCB ........3.3.4 Pulse Motor ........3.3.5 Planet Gear ........3.3.6 Roller-A and -B 4. TROUBLESHOOTING - 4.1 Precautions Prior to Troubleshooting ....4.2 Preparations for Troubleshooting ....4.3 Troubleshooting Method 5. CONNECTION DIAGRAM 6. PARTS LIST E High Capacity Second Paper Feeder Maintenance High Capacity Second Paper Feeder Maintenance - Preface Table of Contents 1. OUTLINE 2. MECHANISM DESCRIPTION 3. PARTS REPLACEMENT - 3.1 Precautions Concerning Parts Replacement ....3.2 Parts Layout ....3.3 Parts Replacement Methods - 3.3.1 Pulse Motor (Hopping) ........3.3.2 OLEV-12 PCB ........3.3.3 Hopping Roller Shaft Assembly and One-way Clutch Gear 4. TROUBLESHOOTING - 4.1 Precautions Prior to Troubleshooting ....4.2 Preparations for Troubleshooting ....4.3 Troubleshooting Method 5. CONNECTION DIAGRAM 6. PARTS LIST
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Table of Contents ............Wrong Part Number : Bill Healey/OKI_ELECTRIC/US; 02/22/96
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Service Guide OL600e/610e/610ePS
Chapter 0 About This Manual
HP and LaserJet are registered trademarks of Hewlett-Packard Company. Adobe and PostScript are trademarks of Adobe Systems Incorporated, which may be registered in certain jurisdictions. LocalTalk is a registered trademark of Apple Computer Inc. Centronics is a registered trademark of Centronics Data Corporation. OKIDATA is a registered trademark of Oki America, Inc. OKIDATA est une marque déposée de Oki America, Inc. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 0 About This Manual
Preface This Service Manual describes the field maintenance procedures for OL600e, OL610e and OL610e/PS LED Page Printers This manual is written for use by service personnel. Refer to the Printer Handbook for handling and operating procedures. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.1 System Configuration OL600e, OL610e and OL610e/PS consist of control and engine blocks in the standard configuration, as shown in Figure 1-1. In addition, the options marked with an asterisk (*) are available.
Figure 1-1 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.2 Printer Configuration The printer unit consists of the following hardware components: · Electrophotographic Processor · Paper Feeder · Main Control PCB · Operator Panel (OL610e/PS) · Power Supply Unit · PS Board (OL610e/PS) The printer unit configuration is shown in Figure 1-2.
Figure 1-2 Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.3 Optional Configuration The options shown below are available for use with OL600e, OL610e and OL610e/PS. These are available separately from the printer unit. (1) 1MB Memory Expansion Board (OL600e/610e)
(2) SIMM (Single In-line Memory Module)
(3) Legal/Universal Paper Cassette
(4) High Capacity Second Paper Feeder
(5) Multi-Purpose Feeder
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.4 Specification (1) Type Desktop (2) External dimensions Height 6.3" (160 mm) Width 12.6" (320 mm) Depth 14.17" (360 mm) (3) Weight 8 kg (4) Developing method Dry electrophotography Exposing method LED stationary head (5) Paper used Type - Standard paper e.g. Xerox 4200 (20 lbs) - Application paper (manual face-up feed) - Label Envelope OHP paper (Transparency) Size - Standard sizes Letter (ODA) Legal (option) Executive Envelope A4 A5 B5 A6 Applicable sizes Width: 3.94" to 8.5" (100 to 216 mm) Length: 5.83" to 14" (148 to 355.6 mm) Thickness Automatic feed: 16 to 24 lbs (60 to 90 g/m 2 ) Manual feed: Label, OHP paper (transparency) Envelope (6) Printing speed First print: 25 sec. Continuous print: 6 pages/min. for letter size paper Warm-up time: 60 sec. [at room temperature 77°F (25°C) and rated voltage (120 VAC)] (7) Paper feeding method Automatic feed or manual feed (8) Paper delivery method Face down/face up (9) Resolution OL600e: 300 x 300 dots/inch OL600e (Hiper-W driver), OL610e, OL610e/PS: 600 x 600 dots/inch (10) Power input 120 VAC +5.5%, 15% (ODA) 230 VAC +15%, 15% (ODA) (11) Power consumption Peak: Approx. 420W Typical operation: Approx. 160W Idle: Approx. 55W Power save mode: Approx. 15W
(12) Temperature and humidity During operation: 50 to 90°F (10 to 32°C) In storage: 14 to 110°F (10 to 43°C) (13) Noise During operation: 48 dB (A) or less Standby: 38 dB (A) or less (14) Consumables Toner cartridge kit 2,000 (5% duty) Image drum cartridge 20,000 (at continuous printing) 15,000 (3 pages/job) 10,000 (1 page/job) Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.5 Safety Standards 1.5.1 Certification Label The safety certification label is affixed to the printer at the location shown below.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.5.2 Warning Labels The warning labels are affixed to the sections that may cause bodily injury. Follow the instructions on warning labels during maintenance.
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Service Guide OL600e/610e/610ePS
Chapter 1 Configuration
1.5.3 Warning/Caution Markings The following warning and caution markings appear on the power supply board.
ENGLISH Heatsink and transformer core present risk of electric shock. Test before touching. FRENCH Le dissipateur thermique et le noyau du transformateur présentent des risques de choc électrique. Testez avant de, manipuler. SPANISH Las disipadores de color el núcel del transformador pueden producir un choque eléctrico. Compruebe antes de tocar. PORTUGUESE O dissipador de calor e o núcleo do fransiormador apresentam risco de choque elétrico. Teste antes de focar. ENGLISH Circuits may be live after fuses open. FRENCH Il se peut que les circuits soient sous tension une fois que les fusibles ont été rerirés. SPANISH Las circuitos pueden estar activos una vez que se hayan abierio los fusibles. PORTUGUESE Os circuitos podem estar energizados após os fusiveis se queimarem.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2. OPERATION DESCRIPTION The OL600e, OL610e and OL610e/PS consist of a Main Control PCB, a PostScript board (OL610e/PS), a power supply/sensor board, an operator panel (OL610e/PS), and an electrophotographic process mechanism. The control board and the PostScript board receive data via the host I/F; these then decode, edit and store the data in memory. After a single page of data is completely edited, they reference the font memory and generate bit image data, which is transferred to the LED head in one-dot line units. The data is printed on the paper by means of the electrophotographic process mechanism. The OL600e and OL610e use proprietary software to control printer operations and status monitoring. The OL610e/PS has an operator panel to perform these functions. Figure 2-1 shows the OL600e block diagram. Figure 2-2 shows the OL610e block diagram. Figure 2-3 shows the OL610e/PS block diagram.
Figure 2-1 OL600e Block Diagram
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
Figure 2-2 OL610e Block Diagram
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
Figure 2-3 OL610e/PS Block Diagram
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.1 Control Board The control board consists of a single chip CPU, Program & Font ROMsone DRAM for the OL600e, two DRAMs for the OL610e an EEPROM, a host interface circuit, and a mechanism driving circuit. (1) Single chip CPU The single chip CPU is a custom CPU (32-bit internal bus, 16-bit external bus, 25.54 MHz clock with input frequency from a 12.27 MHz clock) which incorporates the MIPS 3000 RISC CPU and its peripheral devices, and has the following functions: Built-in device Chip select controller Bus controller DRAM controller DMA controller Parallel interface controller Serial interface controller Video output port LED STB output port Timer Serial I/O port I/O port (2) Program & Font ROM OL600e/610e The Program & Font ROM stores the equipment program and various types of fonts. EPROM or Mask ROM is used for a Program & Font ROM. The mounting location of this Program & Font ROM varies depending on the type of ROM (for the mounting location see 7.2). OL610e/PS The Program ROM & Font ROM store the HP4 emulation program and various types of fonts. Mask ROM is used for a Program & Font ROM. Function Control of ROM DRAM and I/O device
Transfer of image data from DRAM to video output port Control of Centronics parallel interface Control of RS-232C serial interface Control of LED head Generation of various control timing signals Monitoring of paper running and paper size Control of operator panel EEPROM and options Input and output of sensor and motor signals
(3) DRAM OL600e/610e The DRAM is a resident memory 1MB in the OL600e, 2MB in the OL610e used as a buffer; it stores edited data, image data, DLL data, and macro data. OL610e/PS The DRAM is resident memory (2MB on the board plus 0.5MB on the PS board) used as a buffer; it stores edited data, image data, DLL data, and macro data. In PostScript mode, it is used as VM and font cache also. (4) EEPROM 1,024-bit Electrically Erasable PROM (EEPROM), is loaded with the following data: - Menu data - Various counter data (Page counter, Drum counter) - Adjusting parameters (LED head drive time, print start position, paper feed length) (5) Parallel Interface Parallel data is received from the host system via parallel interface which conforms to the Centronics specification. IEEE 1284 specification bi-directional parallel is supported. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.2 PS Board (OL610e/PS) The PS board consists of two Program & Font ROM's, DRAM's, an EEPROM, and a host interface circuit. (1) Program & Font ROM's The Program & Font ROMs store the PostScript Level II program and its fonts. Mask ROM is used for the Program & Font ROMs. (2) DRAM 0.5MB of DRAM's reside on the PS board. (3) EEPROM 4,096 bit-Electrically Erasable PROM (EEPROM) is mounted on the PS board for storing the PostScript's menu settings. (4) LocalTalk I/F AppleTalk protocol data is received from the host system via LocalTalk interface. The block diagram is shown in Figure 2-4.
Figure 2-4 PS Board Block Diagram Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.3 Power Supply Board The power supply board consists of an AC filter circuit, a low voltage power supply circuit, a high voltage power supply circuit, heater drive circuit, and photosensors. (1) Low Voltage Power Supply Circuit This circuit generates the following voltages. Output voltage +5 V +30 V +8 V -8 V Use Logic circuit supply voltage Motor and fan drive voltage and source voltage for high-voltage supply Analog supply voltage PS board and analog circuit supply voltage
(2) High Voltage Power Supply Circuit This circuit generates following voltages required for electrophotographic process from +5 V, according to the control sequence from the control board. When cover open state is detected, +5 V supply is interrupted automatically to stop the supply of all high-voltage outputs. Output CH DB SB TR CB Voltage -1.35 KV -300 V/+300 V -450 V/ 0 V +500 V to +4 KV/-750 V +400 V Use Voltage applied to charging roller Voltage applied to developing roller Voltage applied to toner supply roller Voltage applied to transfer roller Voltage applied to cleaning roller Variable Remarks
(3) Photosensor The photosensor mounted on this power supply board monitors the paper running state during printing.
The sensor layout diagram is shown in Figure 2-3.
Figure 2.5 Sensor Inlet sensor 1 Function Detects the leading edge of the paper and gives the supervision timing for switching from hopping operation to feeding operation. Monitors paper feeding situation and paper size based on the paper arrival time and running time. Detects the form width. Detects the leading portion of the paper. Monitors the paper feeding situation. Monitors the paper feeding and size according to the time of arrival to and leaving past the sensor. Detects the end of the paper. Sensing state ON: Paper exists. OFF: No paper exists.
Intel sensor 2 Paper sensor Outlet sensor
ON: A4 or larger OFF: Smaller than A4 ON: Paper exists. OFF: No paper exists. ON: Paper exists. OFF: No paper exists. ON: Paper exists. OFF: No paper exists.
Paper end sensor
Toner low sensor
Detects the lack of toner.
-----
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.4 Electrophotographic Process 2.4.1 Electrophotographic Process Mechanism This mechanism uses the electrophotographic process to print image data supplied by the control board. The layout of the electrophotographic process mechanism is shown in Figure 2-6.
Figure 2-6 (1) Image Drum Unit The image drum unit consists of a light-sensitive drum, a charger, and a developer. The unit forms a toner image on the sensitive drum, using an electrostatic latent image formed by the LED head. (2) Registration Motor The registration motor is a pulse motor of 48 steps/rotation, which is two-phase excited by the signal from the Main Control PCB. It drives the hopping and registration rollers via two one-way clutches according to the direction of rotation. (3) Drum Motor
The drum motor is a pulse motor of 48 steps/rotation, which is two-phase excited by the signal from the Main Control PCB and is the main motor of this mechanism. (4) LED Head Image data for each dot line from the control board is received by the shift register and latch register. The 2560/2496 LEDs are driven to radiate the image data on the image drum. (5) Fuser The fuser consists of a heater, a heat roller, a thermistor and a thermostat. The AC voltage from the power supply board is applied to the heater controlled by the HEATON signal from the control board. This AC voltage heats the heater. The Main Control PCB monitors the heat roller temperature via the thermistor, and regulates the heater roller to a predetermined temperature (165°C) by connecting or disconnecting the AC voltage supply to the heater. When the temperature of the heater roller rises abnormally, the thermostat of the heater voltage supply circuit becomes active and cuts the AC voltage supply.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.4.2 Electrophotographic Process The electrophotographic processing is outlined below. Figure 2-7 shows the electrophotographic printing process. 1 Charging The surface of the image drum is given a uniform negative charge by applying the negative voltage to the charge roller. 2 Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum. The surface potential of the irradiated portion becomes lower, forming the electrostatic latent image associated with the print image. 3 Developing and toner recovery When the negatively charged toner is brought into contact with the image drum, it is attracted to the electrostatic latent image by static electricity, making the image visible. At the same time, the residual toner on the image drum is attracted to the developing roller by static electricity. 4 Transfer When paper is placed over the image drum surface, the positive charge which is opposite in polarity to that of the toner, is applied to the reverse side by the transfer roller. The toner is attracted by the positive charge and is transferred onto the paper. This transfers the toner image formed on the image drum onto the paper. 5 Temporary cleaning Residual toner, which remains on the image drum without being transferred, is evened out by the cleaning roller and is attracted to the cleaning roller by static electricity. 6 Fusing The transferred toner image is fused to the paper by heat and pressure. Figure 2-8 shows an electrophotographic process timing chart.
Figure 2-7
Figure 2-8
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.4.3 Process Operation Descriptions (1) Hopping and Feeding Hopping and feeding motions are actuated by a single registration motor in the mechanism as shown below:
The registration motor turning in direction "a" drives the hopping roller. The registration motor turning in direction "b" drives the registration roller. The registration and hopping gears have one-way bearings, so turning any of these gears in the reverse direction will not transmit the motion to the corresponding roller. (a) Hopping 1 For hopping, the registration motor turns in direction "a" (CW direction) and drives the hopping roller to advance the paper until the inlet sensor turns on (in this case, the registration gear also turns, but the registration roller is prevented from turning by the one-way bearings). 2 After inlet sensor is turned on by the paper advance, the paper is further advanced to a predetermined distance until the paper hits the registration roller (the skew of the paper can thus be corrected).
(b) Feeding 1 When hopping is completed, the registration motor turning in direction "b" (CCW direction) drives the registration roller to advance the paper (in this case, the hopping gear also turns, but the hopping roller is prevented from turning by the one-way bearings). 2 The paper is further advanced in synchronization with the print data.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
(2) Charging Charging is actuated by the application of the DC voltage to the charge roller that is in contact with the image drum surface.
The charge roller consists of two layers: a conductive layer and a surface protective layer, both having elasticity to secure good contact with the image drum. When the DC voltage applied by the power supply exceeds the threshold value, charging begins. The applied voltage is proportional to the charge potential, with an offset of approximately 550V.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
(3) Exposure Light emitted by the LED head irradiates the image drum surface with a negative charge. The surface potential of the irradiated portion drops, forming an electrostatic latent image associated with the image signal.
The image drum is coated with an underlayer (UL), a carrier generation layer (CGL), and carrier transfer layer (CTL) on aluminum base. The organic photo-conductor layer (OPC), comprising CTL and CGL, is about 20 µm thick.
The image roller surface is charged to about 750 V by the contact charge of the charge roller.
When the light from the LED head irradiates the image drum surface, the light energy generates positive and negative carriers in the CGL. The positive carriers are moved to the CTL by an electrical field acting on the image drum. Likewise, the negative carriers flow into the aluminum layer (ground). The positive carriers moved to the CTL combine with the negative charges on the image drum surface accumulated by the contact charge of the charge roller, lowering the potential on the image drum surface. The resultant drop in the potential of the irradiated portion of the image drum surface forms an electrostatic latent image on it. The irradiated portion of the image drum surface is kept to about 100 V.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
(4) Developing Toner is attracted to the electrostatic latent image on the image drum surface, converting it into a visible toner image. Developing takes place through the contact between the image drum and the developing roller. 1 As the toner supply roller rotates while rubbing on the developing roller, a friction charge is generated between the developing roller and the toner, allowing the toner to be attracted to the developing roller (the developing roller surface is charged positive and the toner is charged negative).
2 The toner attracted to the developing roller is scraped off by the doctor blade, forming a thin coat of toner on the developing roller surface. 3 Toner is attracted to the exposed portion (low-potential part) of the image drum at the contact of the image drum and the developing roller, making the electrostatic latent image visible.
Note: The bias voltage required during the developing process is supplied to the toner supply roller and the developing roller, as shown in the diagram below. 450 VDC is supplied to the toner supply roller, 300 VDC to the developing roller.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
(5) Transfer The transfer roller is composed of conductive sponge material, and is designed to get the image drum surface and the paper in a close contact. Paper is placed over the image drum surface, and the positive charge, opposite in polarity to that of the toner, is applied to the paper from the reverse side. The application of a high positive voltage from the power supply to the transfer roller causes the positive charge inducement on the transfer roller surface, transferring the charge to the paper as it contacts the transfer roller. The toner with negative charge is attracted to the image drum surface, and it is transferred to the upper side of the paper due to the positive charge on the reverse side of the paper.
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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
(6) Fusing When the image transfer is completed, the toner image is fused to the paper by heat and pressure as the paper with the toner image passes between the heater roller and the back-up roller. The heater roller with Teflon coating incorporates a 400W heater (Halogen lamp), which heats the roller. A thermistor, which is in contact with the heater roller, regulates the temperature of the heater roller at a predetermined level (about 165°C). A safety thermostat cuts voltage supply to the heater off by opening the thermostat in the event of abnormal temperature rises. The back-up roller is held under a pressure of 3.8 kg applied by the pressure spring on each side.
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Chapter 2 Operation Description
(7) Cleaning When the transfer is completed, the residual toner left on the image drum is attracted to the cleaning roller by static electricity, and the image drum surface is cleaned.
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Chapter 2 Operation Description
(8) Cleaning of rollers The charge, transfer and cleaning rollers are cleaned in the following cases: · Warming up when the power is turned on. · Warming up after the opening and closing of the cover. · When the number of sheets accumulated reaches 10 or more, and the printout operation ends. · Cleaning initiated by the user. Changes in bias voltage applied to each roller moves the excess toner off the roller to the image drum and returns it to the developer.
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Chapter 2 Operation Description
2.5 Paper Jam Detection The paper jam detection function monitors the paper condition when the power is turned on and during printing. When any of the following conditions arises, this function interrupts the printing process. If any of the following errors is encountered, printing can be recovered by removing the jammed paper (by opening the upper cover, removing the jammed paper and closing the upper cover). Error Paper input jam Cause of error · The paper is in contact with the inlet sensor when the power is turned on. · After hopping operation is attempted three times, the leading edge of the paper does not reach the inlet sensor. · The paper is in contact with at the paper sensor when the power is turned on. · The leading edge of the paper does not reach the paper sensor within a predetermined distance since the paper has reached the inlet sensor. · The trailing edge of the paper does not pass over the paper sensor within a predetermined distance after the same has passed over the inlet sensor. · The leading edge of paper does not reach the outlet sensor within a predetermined distance after the paper has reached the paper sensor. · The paper is in contact with the outlet sensor when the power is turned on. · The paper does not pass over the outlet sensor within a predetermined distance after the leading edge of the paper has reached the outlet sensor. · The paper size check for manual feeding finds that the paper size is free size. · The size of the paper is monitored by the inlet sensor 1. The paper is not detected by the inlet sensor 1 within predetermined distance. · The inlet sensor 2 detects that the size of the loaded paper is A4 or larger, or smaller than A4. The detected paper size differs from the paper size set by command or menu. · The paper size check for manual feeding finds that the paper size is free size.
Paper feed jam
Paper exit jam
Paper size error
Paper Feed Timing Chart
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Chapter 2 Operation Description
2.6 Cover Open When the stacker cover is opened, the cover open microswitch on the power/sensor board is turned off to cut +5V supply to the high voltage power supply circuit. This results in the interruption of all high-voltage outputs. At the same time, the CVOPN signal is sent to the control board to notify that the microswitch is off, and the control board carries out the cover open process. Paper Feed Check List Type of error Monitor Standard value Error Plus Paper feed error Hopping start to In sensor on In sensor on to Write sensor on Write sensor on to Out sensor on In sensor on to Out sensor on Out sensor on to Out sensor off In sensor off to Write sensor off 72.0 36.0 Minus _
Paper feed jam
20.0
20.0
_
Paper feed jam
140.5
25.0
_
Paper size error
Depends on the paper length Depends on the paper length 22.2
45.0
45.0
Paper exit jam
45.0
45.0
Paper feed jam
22.0
_
Note: Hyphen ["-"] in the table indicates that no check is done.
Paper Length List Type Paper length Check range Min. Max.
Min. A4 A5 B5 LETTER LEGAL 13 LEGAL 14 EXEC A6 Monarch COM-9 COM-10 DL C5 Free 241.3 220.0 229.0 110.0 ~ 355.6 196.3 175.0 184.0 65.0 297.0 210.0 257.0 279.4 330.2 355.6 266.7 148.0 190.5 252.0 165.0 212.0 234.4 285.2 310.6 221.7 103.0 145.5
Max. 342.0 255.0 302.0 324.4 375.2 400.6 311.7 193.0 235.5
286.3 265.0 274.0 400.6
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Chapter 2 Operation Description
2.7 Toner Low Detection · Device The Toner Low Detection device consists of a stirring gear which rotates at a constant rate, a stirring bar, and a magnet on the stirring bar. The stirring bar rotation is driven by the link to the protrusion in the stirring gear.
· Operation Toner Low is detected by monitoring the time interval of the encounter of the magnet set on the sensor lever and the magnet on the stirring bar.
Operation during Toner Full state
· The stirring gear rotates the stirring bar. · When toner is present, the stirring bar moves through the toner at a constant rate.
Operation during Toner Low state
· When toner is low or empty, the stirring bar rises to the maximum height and then falls to the minimum height by its own weight. This increases the time of its encounter with the magnet on the sensor lever. By monitoring this time interval, Toner Low can be detected. · When the Toner Low state is detected 2 times consecutively, Toner Low is established.
· When the Toner Full state is detected 2 times consecutively, Toner Low is cancelled.
TONER FULL state
TONER LOW state
· When there is no change with the toner sensor for 2 cycles (4.875 sec. x 2) or more, the Toner Sensor Alarm is activated. · The toner sensor is not monitored while the drum motor is in halt. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
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Chapter 3 Parts Replacement
3. PARTS REPLACEMENT The section explains the procedures for replacement of parts, assemblies, and units in the field. Only the disassembly procedures are explained here. For reassembly, reverse the steps of disassembly procedure. 3.1 Precautions for Parts Replacement Note: Always use proper anti-static precautions. (1) Before starting the parts replacement, remove the AC power cord and interface cable. (a) Remove the AC power cord in the following sequence: i) Turn off ["O"] the power switch of the printer. ii) Unplug the power cord from the AC outlet. iii) Disconnect the power cord and interface cable from the printer. (b) Reconnect the printer in the following sequence. i) Connect the AC power cord and interface cable to the printer. ii) Plug the power cord into the outlet. iii) Turn on ("l") the power switch.
(2) Do not try to disassemble as long as the printer is operating normally. (3) Do not remove parts which do not need to be touched; try to keep disassembly to a minimum. (4) Use specified service tools. (5) When disassembling, follow the procedure in sequence laid out in this manual. Parts may be damaged if these sequences are not followed.
(6) Since screws, collars and other small parts are likely to be lost, they should temporarily be attached to the original positions during disassembly. (7) When handling IC's such as microprocessors, ROM's and RAM's, or circuit boards, use proper anti-static precautions. (8) Do not place printed circuit boards directly on the equipment or floor. [Service Tools] The tools required for field replacement of printed circuit boards and units are listed in Table 3-1. Table 3-1 Service Tools
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Chapter 3 Parts Replacement
3.2 Parts Layout This section describes the layout of main parts of the equipment. [Lower base unit]
Figure 3-1
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Chapter 3 Parts Replacement
[Upper cover unit]
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Chapter 3 Parts Replacement
[Base unit]
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Service Guide OL600e/610e/610ePS
Chapter 3 Parts Replacement
3.3 How to Change Part This section explains how to change parts and assemblies listed in the disassembly diagram below.
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Service Guide OL600e/610e/610ePS
Chapter 3 Parts Replacement
3.3.1 Upper Cover (1) With the power switch turned off, unplug the AC power cord from the outlet. (2) Disconnect the interface cable 1. (3) Remove two thumb screws 2 and remove the PS board (OL610e/PS) 3. (4) If a memory board is installed, remove it. (5) On the OL610e/PS, disconnect the flexible cable 4 from the connector (CN1) 5 of the operator panel PCB, and put the cable inside the cover. (6) Open the stacker cover assembly 6 by pressing the knobs 7 on the left and right sides. (7) Remove the image drum unit 8. (8) Remove two screws 9, and open the manual feed guide assy 10. Lift up the front of the upper cover 11 and release the claws at two locations on the back side. Lift the cover straight up one or two inches, rotate the cover about 45 degrees to clear the face-up stacker, then lift the cover completely off of the printer (Detail A).
Note: When removing or installing the upper cover, be careful not to damage the cable 4.
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Chapter 3 Parts Replacement
3.3.2 Stacker (1) Remove the upper cover. (See 3.3.1) (2) Remove two stacker clamps 1 and the stacker 2 by flexing the upper cover.
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Chapter 3 Parts Replacement
3.3.3 LED Head (1) Open the stacker cover. (2) Remove the flexible cable (LED) 1 from the PC connector 2 of the LED head 3. (3) Remove the LED head by flexing the left side of the upper cover away from the retaining clip.
Note: Be careful to not lose the frame ground clip 4. Note: · Be sure not to directly touch or push the SLA (lens) part of the LED head.
· After mounting the new LED head, set drive time of the LED head according to the marking on the LED head (see 4.2.1). · For the installation of the flexible cable (LED) 1, install the PC connector 2 to the flexible cable (LED) 1 first, then connect the LED head 3 to the PC connector. · When installing a new LED head, be careful not to lose the frame ground clip 4.
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Chapter 3 Parts Replacement
3.3.4 Eject Roller Assy (1) Remove the upper cover (see 3.3.1). Leave the face-down stacker open. (2) Using a small flatblade screwdriver, press the clamp on the left side of the eject roller assy 1 in the direction of the arrow. Detach the eject roller assy from the lower base unit 2, and remove it.
Note: When installing the eject roller, verify that the right side of the roller assembly is properly aligned with the main unit.
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Chapter 3 Parts Replacement
3.3.5 Pulse Motor (Main) (1) Remove the upper cover (see 3.3.1). (2) Remove the connector 3 from (CN2) 2 of the Main Control PCB 1. (3) Remove two screws 4 and remove the pulse motor (main) 6 from the motor bracket 5.
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Chapter 3 Parts Replacement
3.3.6 Pulse Motor (Registration) (1) Remove the upper cover (see 3.3.1). (2) Remove the connector 3 from (CN3) 2 of the Main Control PCB 1. (3) Remove two screws 4 and remove the pulse motor (registration) 6 from the motor bracket 5.
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Chapter 3 Parts Replacement
3.3.7 Lower Base Unit (1) Remove the upper cover (see 3.3.1). (2) Remove the connecting cables 4 and 5 of the pulse and main motor from the connectors 2 and 3 of the Main Control PCB 1. (3) Remove the screw 9 from the grounding cable and the metal shield. The screw is located directly above CN1 and the 8-pin DIN connector for the second feeder/multi-purpose feeder. (4) Remove the connector 6 of the LED head from the Main Control PCB 1. (5) Remove seven screws 7, then remove the lower base unit 8.
Note: Use care when lifting the lower base unit. Do not deform the ground clip 10 for the second sheet feeder.
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Chapter 3 Parts Replacement
3.3.8 Motor Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Stand the lower base unit on its left side as shown. Free the pulse and main motor cables from the lower base unit at location 3, , and unlock two clamp levers 2; then remove the motor assy 1.
Note: Use special care, because the idle gears and the reduction gear are not permanently attached and will become loose.
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Chapter 3 Parts Replacement
3.3.9 Hopping Roller Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Remove the motor assy (see 3.3.8). (4) With the lower base unit 1 standing on its side, remove the one-way clutch gear 2 and the bearing (A) 3, then remove the hopping roller assy 4 and the bearing (B) 5.
Note: Take special note of the orientation and position of the bearings. Do not lose the bearings.
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Chapter 3 Parts Replacement
3.3.10 Stacker Cover Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the LED head cable from the connector on the Main Control PCB and remove the LED head grounding screw (see 3.3.7, steps 3 & 4). (3) Remove the reset lever R 1 . Remove the reset spring 2, then turn L 4 in direction A to release the tabs on the face-down stacker cover assy 5. (4) Release two pins of the lower base unit 3, then remove the stacker cover assy 5.
Note: Use care when removing the stacker assy, because the cover close damper 6 is not permanently attached.
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Chapter 3 Parts Replacement
3.3.11 Registration Roller (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Remove the motor assy (see 3.3.8). (4) With the lower base unit standing on its side (view A), remove the one-way clutch gear 1. (5) Note the placement of the bearing on the left side of the registration roller. Press the registration roller 2 to the right side (in the direction of the arrow as shown) and lift up the left side. Remove the registration roller 2 and the bearing (registration) 3.
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Chapter 3 Parts Replacement
3.3.12 Transfer Roller
Special Note: Handling the transfer roller unnecessarily will cause poor print quality. Do not touch the surface of the roller.
(1) With the power switch turned off, unplug the AC power cord from the outlet. (2) Open the stacker cover. (3) From the top of the machine, release TR gear 1 by unlocking the latch 4 of the main unit with a small flathead screwdriver (never apply an excessive force when unlocking the latch). (4) Lift the right side of the transfer roller 2, and shift it to the right side, then pull it out from the main unit (at this time, the bearings 3 of the left and right sides of the transfer roller 2 will release themselves).
Note: Use great care: the bearings are not permanently attached. Note: Use care when removing the roller: do not lose or damage the bearing.
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Chapter 3 Parts Replacement
3.3.13 Fusing Unit Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the stacker cover assy (see 3.3.10). (3) Remove four screws 1 and remove the fusing unit 2.
Caution: Fusing unit assy may be hot. Use care when handling. Notes: When installing or removing the fusing unit assy, tighten or loosen the screws while holding the fusing unit down with your hand. When reinstalling screws 1 , be sure to direct the screws into the pre-existing hole to avoid damaging the threads. Do not apply excessive torque when tightening the screws 1; if these screws are stripped, the entire lower unit assembly must be replaced. · When reinstalling the fuser, insert the left side first, then lower the right side into place.
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Chapter 3 Parts Replacement
3.3.14 Fusing Pressure Roller (1) Remove the upper cover (see 3.3.1). (2) Remove the stacker cover assy (see 3.3.10). (3) Remove the lower base unit (see 3.3.7). (4) Remove the fusing unit assy (see 3.3.13). (5) Remove the motor assy (see 3.3.8). (6) Remove the reset lever R (see 3.3.10 for location). Press down on the fusing pressure roller to take pressure off of the reset lever R. (7) Lift the right side of the fusing pressure roller 1, and pull it out to the right side (at this time, two bushings 2 and the bias springs 3 will release themselves).
Note: Do not bend or lose springs. Note the orientation and position of the bearings, springs, and ground clips.
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Chapter 3 Parts Replacement
3.3.15 Sensor Plate (Inlet) (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Press the clamps of three sensor plates (inlet) 1, and remove the sensor plates by pressing them upward from the bottom side.
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Chapter 3 Parts Replacement
3.3.16 Toner Sensor (Adhesion) (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Press the clamp of the toner sensor 1, and remove the sensor by pushing it up from the bottom.
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Chapter 3 Parts Replacement
3.3.17 Sensor Plate (Outlet) (1) Remove the upper cover (see 3.3.1). (2) Remove the eject roller assy (see 3.3.4). (3) Remove the lower base unit (see 3.3.7). (4) Remove the fusing unit assy (see 3.3.13). (5) Press the clamp of the sensor plates (outlet) 1, and remove the sensor plate by pushing it up from the bottom.
Note: This is a two-part sensor. Use great care when handling/replacing.
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Chapter 3 Parts Replacement
3.3.18 Manual Feed Guide Assy (1) Remove the upper cover (see 3.3.1). (2) Open the manual feed guide assembly 1, and release the engagement on both sides with the main unit by carefully bending the manual feed guide assy 1.
Note: When re-mounting, verify the proper the engagements as shown in the diagram.
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Chapter 3 Parts Replacement
3.3.19 Sensor Plate (Paper Supply) (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Press the clamp of the sensor plate (paper supply) 1, and remove it from the base plate 2.
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Chapter 3 Parts Replacement
3.3.20 Main Control PCB The Main Control PCB is different for each model. OL600e : LQ5C-PCB OL610e and OL610e/PS : LQ6C-PCB (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Remove two screws 1. (4) Move the Main Control PCB 2 in the direction of arrow A to disconnect it from the power supply board 3. (5) Disconnect the LED head cable, the fan motor connector 5, the main motor connector CN2, and the registration motor connector CN3 from the Main Control PCB CN1. On the OL610e/ PS, disconnect the operator panel cable. Then remove the Main Control PCB 2 together with the PCB guide plate 4 (6) Remove three screws 6 and two posts 7, and remove the PCB guide plate 4 from the Main Control PCB 2. Do not bend or lose ground plate 9.
Note: All user settings are lost when the main logic board is changed.
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Chapter 3 Parts Replacement
3.3.21 Power Supply Board and Contact Assy (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.7). (3) Remove the Main Control PCB (see 3.3.20). (4) Remove the AC inlet 1 from the inlet holder 2, and remove the connector 3 of the transformer from CN1. (5) Remove the screw 4, and remove the ground cable 5. (6) Remove three screws 6, and remove the power supply board 7 and contact assembly 8 at the same time. (7) Unlock two claws 9, and remove the contact assembly 8 from the power supply board 7.
Notes: When mounting the lower base unit, be careful around the paper end sensor. Do not apply excessive force to the power switch during reassembly. When reinstalling the power supply/sensor board onto the base plate, be careful not to bend the mounting tabs 10 on the base plate.
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Chapter 3 Parts Replacement
3.3.22 Transformer (1) Remove the upper cover (see 3.3.1). (2) Remove the lower base unit (see 3.3.8). (3) Remove the connectors (CN1 and CN2). (4) Remove the inlet 3 from the inlet holder 2. (5) Remove two screws 1, and remove the inlet holder 2 and the transformer 4.
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Service Guide OL600e/610e/610ePS
Chapter 3 Parts Replacement
3.3.23 Cassette Guide L (1) Remove the paper cassette. (2) Remove the upper cover (see 3.3.1). (3) Remove the lower base unit (see 3.3.8). (4) Remove the Main Control PCB (see 3.3.21). (5) Remove the power supply board (see 3.3.22). (6) Remove the screw 1, and remove the cassette guide L 2 by shifting it in the direction of the arrow. (7) Detach the eject spring 3, and remove the support spring 4 from the cassette guide L 2.
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Chapter 3 Parts Replacement
3.3.24 Cassette Guide R (1) Remove the paper cassette. (2) Remove the upper cover (see 3.3.1). (3) Remove the lower base unit (see 3.3.8). (4) Remove the Main Control PCB (see 3.3.21). (5) Remove the screw 1, and remove the cassette guide R 2 by shifting it in the direction of the arrow. (6) Pull the eject spring 3 out of the cassette guide R 2, then remove the support spring 4.
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Service Guide OL600e/610e/610ePS
Chapter 4 Adjustments
4. ADJUSTMENT This chapter describes the adjustments necessary when replacing a part. The adjustments are made by changing the parameter value set in EEPROM on the Main Control PCB. The parameter can be set from the operator panel (OL610e/PS only) or from the DOS Operator Panel software (OL600e, OL610e only) . 4.1 Maintenance Menus and Functions 4.1.1 User Maintenance Menu OL610e/PS End-users can use this mode. To enter the user maintenance menu, turn the printer on while holding down the MENU button. Functions: - Hex dump - Drum counter reset - Menu reset - Operator panel menu disable - X-adjust / Y-adjust Detailed descriptions of these functions are provided in Appendix C, Software Diagnostics & Adjustments. 4.1.2 System Maintenance Menu OL610e/PS Note: Only service personnel should use this mode; it should not be released to end-users. To enter the system maintenance menu, turn the printer on while holding down the RECOVER key. Functions: - Page count display - Loop test - Page count printing enable/disable - EEPROM reset - Rolling ASCII continues printing Detailed descriptions of these functions are provided in Appendix C, Software Diagnostics & Adjustments. 4.1.3 Engine Maintenance MenuOL610e/PS Note: Only service personnel should use this mode; it should not be released to end-users. To enter the engine maintenance menu, turn the printer on while holding down the FORM FEED and ENTER buttons. Functions:
- Head drive time setting - Drum count total display - Printing start position setting - Engine reset - Drum count display - Factory adjustment Note: "Printing start position setting" is for shipping. Do not change its default value. Detailed descriptions of these functions are provided in Appendix C, Software Diagnostics & Adjustments. 4.1.4. DOS Operator PanelOL600e, OL610e (1) Settings Tab At the DOS Prompt, enter OL600, then click on Settings. Functions: - Reset EEPROM, Menu, Drum count - Print position adjust Detailed descriptions of these functions are provided in Appendix C, Software Diagnostics & Adjustments. (2) Service Tab Note: Only service personnel should use this mode; it should not be released to end-users. Functions: - Head Drive Time - Revision information - Climate - Count information - Market Place At the DOS Prompt, enter OL600 \S , then click on Service. Detailed descriptions of these functions are provided in Appendix C, Software Diagnostics & Adjustments.
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Chapter 4 Adjustments
4.2 Adjustment When Replacing a Part Adjustment is necessary when replacing any one of the following parts. Part Replaced LED Head Image Drum Cartridge Adjustment Set the LED head drive time. Reset the image drum counter (refer to User's manual).
4.2.1 Setting of LED Head Drive Time
Note: When the luminous intensity marking of the replacement LED head (new part) is same as that of the removed LED head (old part), do not set the LED head drive time.
- Luminous Intensity Marking Label
- Setting of LED Head Drive Time Drive time of the LED head is set by setting the parameter of drive time of EEPROM according to the luminous intensity marking on the LED head. a. Table of luminous intensity marking and drive time parameter Luminosity intensity marking on LED head 056-062 063-065 066-069 070-076 077-082 083-088 Drive Time parameter 34 33 32 31 30 29 Luminosity intensity marking on LED head 132-142 143-154 155-167 168-180 181-195 196-211 Drive time parameter
23 22 21 20 19 18
089-096 097-104 105-112 113-121 122-131 b. Setting
28 27 26 25 24
212-228 229-247 248-268 169-290 291-313
17 16 15 14 13
Example: Method for setting the parameter to 19 (for case where the previous parameter setting was 21). OL610e/PS
OL600e, OL610e 1. At the DOS prompt, enter OL600 /S, then click on Service tab. 2. On the Head Drive Time listbox, click the up arrow until 19 shows in the box.
3. Click OK.
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Service Guide OL600e/610e/610ePS
Chapter 5 Periodical Maintenance
5. PERIODICAL MAINTENANCE 5.1 Periodical Replacement Parts The parts are to be replaced periodically as specified below: Part name Toner cartridge Image drum cartridge Condition for replacement About 2,000 sheets of paper have been printed. About 20,000 sheets of paper have been printed. Cleaning LED head. LED head. Remarks Consumables Consumables
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Service Guide OL600e/610e/610ePS
Chapter 5 Periodical Maintenance
5.2 Cleaning Remove any toner or dust accumulated inside the printer. Clean in and around the printer with a piece of cloth when necessary. Use the handy cleaner (vacuum) to clean inside the printer.
Note: Do not touch the image drum, LED lens array, or LED head connector block. Do not use solvents.
5.2.1 Cleaning the LED Lens Array Clean the LED lens array or replace the toner cartridge when white lines or stripes (void, light printing) appear vertically down the page, as shown below.
Note: The LED lens array must be cleaned with an LED head cleaner, provided with each toner replacement kit.
(1) Set the LED head cleaner to the LED lens array as shown in the figure, then slide the cleaner back and forth horizontally several times to clean the head.
Note: Gently press the LED head cleaner onto the LED lens array.
(2) Throw the cleaner pad away.
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Service Guide OL600e/610e/610ePS
Chapter 5 Periodical Maintenance
5.3 Lubrication 5.3.1 General Information Lubricate once a year or as needed. Use Lithium Grease. Do not over-lubricate. Do not allow lubricant to contact the surface of any rollers or paper guides. Lubricate the items listed in the table below. Item Gear on th