First, the DeskWriter in AppleTalk mode hung halfway through printing if extensions were on. Second, when I tried to copy Conflict Catcher from my hard drive over the network to the Duo, I received failures with error One down, and a win for Conflict Catcher since Bill had a slew of extensions that would have taken hours to test. We finally ended up copying the Conflict Catcher files in an archive, and CopyDoubler author Dave Heller of Fifth Generation Systems told me several days later that the problem stemmed from the fact that those two filenames started with an ASCII 0 character to make them sort first.
On to the printing problem, which was the main one anyway. Booting without extensions made no difference, and neither docking the Duo nor using the LaserWriter 7. Finally, we laboriously modified a copy of the Disk Tools disk so we could boot from floppy and print. When we booted from that disk, the QMS came to life and printed correctly. That worked, which isolated the problem to the old System Folder.
We gradually moved folders over to the new System Folder testing as we went and it worked fine until we moved the Fonts folder remember, this is a Duo, so 7.
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Report Software. G-6 Other Precautions G-7 5. M-1 2. M-2 M-2 Controller M-5 4. M-6 Image Stabilization Control M-6 Operation Timing M-7 Image stabilization control flow M System Configuration M Laser exposure process M Laser emission timing M Laser emission area M 1 FD Direction M 2 CD Direction M Cooling of Print Head Unit M System Configuration M Drive Print Unit M 1 Drive Overall Unit M 2 Drive in Unit M Print Unit Detection M 1 Set detection M 2 New unit detection M Toner Cartridge detection M PC Drum M PC Drum Charging M 1 Charged area Ozone Ventilation M Developing Section M 1 Composition M 2 Toner Conveyor M 3 Developing System M 4 Toner Level Detection M Cleaner M Construction of Transfer Belt Unit M Transfer Belt Unit Drive M Color Shift Detection M 1 Simple correction M 2 Full correction Color Shift Correction M 2 Pressure Position Switching Mechanism M Transfer Belt Cleaning Mechanism M Cleaning the 2nd Image Transfer Roller M Waste Toner Box M 1 Installing the Waste Toner Box M Drive of Fuser Unit M Fuser Unit Drive M Control of Loop Before Fusing M New Fuser Unit Detection M Pressure of Fusing Roller M Temperature Control M 1 Fusing Temperature control flow M 2 Control at Warm-up M 3 Temperature Control During Standby M 4 Temperature Control During Printing M 5 Pre-heat Mode Control M 6 Sleep Mode M 7 Heating heater switch control M 1st Drawer M 1 Tray set detection M 2 Paper Size Detection M 3 Paper Near-empty Detection M 4 Paper Empty Detection M 5 Paper Take-Up Mechanism M 2nd Drawer M 3 Paper Empty Detection M 6 Vertical Transport Mechanism M 8 Paper Lifting Plate M 2 Manual feed operation M Synchronizing Roller Drive M Switch of system speed M OHP Detecting Drive of Duplex Unit Paper Feeding System M 1 Operations in 2-sided printing with a single sheet of paper resident in, and circulated through, the system M 2 Operations for 2-sided printing with two sheets of paper resident in the system, and with a new sheet of paper taken up when a printed page with images printed on both sides is fed out.
E-1 Guidelines for Life-time Expected Values by Unit E-3 1 Guideline for Near-Life values E-3 2 Guidelines for life value E-5 Cleaning the Paper Separator Roll E-6 Replacing of the Separator Roll Assembly E-7 Replacing the Waste Toner Box E-8 Replacing the Ozone Filter E-9 Replacing the Print Unit E Replacing the Toner Cartridge E Replacing the Fuser Unit E Replacing the Transfer Belt Unit D-1 Identification of Fuses D-2 1 Screws that must not be removed D-2 2 Do not turn on the Variable Resistors on Board D-2 Doors, Covers and Exterior Parts D-4 1 Removing the Front Door D-4 2 Removing the Left Cover D-5 3 Removing the Panel Cover D-5 4 Removing the Top Cover D-6 5 Remove the Ozone Filter Cover D-6 6 Removing the Rear Cover D-3 D 3 Remove the 2nd Drawer Control Board D 4 Removing the High Resistance Board D 8 Removing the Control Panel D 9 Removing High Voltage Units 1 and D Removing Units D 1 Removing the Print Head Unit D 2 Removing the 2nd Drawer D 3 Removing of the Manual Feed Unit optional D 4 Removing the Duplex Unit optional D 5 Removing of the Paper Feed Unit optional D Cleaning and Disassembly of the Engine Parts D 1 Composition of Transfer Belt Unit D 3 Cleaning the Print Head Unit window surface D 6 Removing the Transport Drive Motor D 7 Removing the Transport Roller Motor D 12 Removing the Registration Sensor D 14 Removing the Hard Disk Drive optional D Disassembing the Manual Feed Unit optional D 1 Removing the Manual Feed Motor D Disassembling the Duplex Unit optional Disassembling the Paper Feed Unit optional S-1 Names and Functions of Control Panel Keys S-1 Control Panel Display S-3 1 Basic Screen S-3 2 Warning Screen S-3 Control Panel Message S-4 1 Standard State Message S-4 2 Caution Message S-4 3 Start-up Messages S-5 4 Operator Call Message S-6 5 Service Call Message S-7 Canceling a Print Job S-8 Summary of Panel Menu S-9 Sub-menu S Contents of Panel Menu S Summary of the Maintenance Mode S Maintenance Menu S Contents of Maintenance Mode S S When Update Fails T-1 Checking the electrical components T-1 1 Sensor T-1 2 Switch T-2 3 Solenoid T-2 4 Clutch T-3 5 Motor T-3 System Control Block Diagram T-5 Initial Check Items T-6 Misfeed Display T-7 Misfeed Detecting Sensor Layout T-9 2 2nd Drawer Paper Misfeed T 7 Vertical Transport Misfeed T 8 2nd Image Transfer Misfeed T Malfunction Codes T T 20 Suction Fan Motor Failure T 25 Fusing Drive Motor Failure T 27 Transport Drive Motor Failure T 30 Power Supply 24 V Failure T 31 Polygon Motor Failure T 32 Laser Failure T 35 Heating Roller abnormally low temperature T 36 Fusing Pressure Roller abnormally low temperature T 37 Heating Roller abnormally high temperature T 38 Fusing Pressure Roller abnormally high temperature Printer is not energized at all T Emergency Stop Error T 1 Door Open Error T 2 Unit not mounted error T Print Prohibition Error T Warning Error T 3 Uneven FD Density T 4 Uneven CD Density T 5 Low Density lowered ID T 7 Color Reproduction Failure T 8 Foggy Background T 9 Void area, white spots T 10 Faulty Image T 11 Blank Copy, Black Copy T 12 Color Shift Failure T 13 Colored Spots T 14 Poor Fusing Performance, Offset T 15 Brush Effect, Blurred Image T 16 Back Marking T 17 Uneven Pitch When performing inspection and service procedures, observe the following precautions to prevent accidents and ensure utmost safety.
Depending on the model, some of the precautions given in the following do not apply. Different markings are used to denote specific meanings as detailed below. It may also be used to alert against unsafe practices.
The following graphic symbols are used to give instructions that need to be observed. Used to call the service technician attention to what is graphically represented inside the marking including a warning. Used to prohibit the service technician from doing what is graphically represented inside the marking. Used to instruct the service technician to do what is graphically represented inside the marking.
Always observe precautions. Parts requiring special attention in this product will include a label containing the mark shown on the left plus precautionary notes. Be sure to observe the precautions.
Be sure to observe the Safety Information given in the Operators Manual. Before starting the procedures, be sure to unplug the power cord. This product contains a high-voltage unit and a circuit with a large current capacity that may cause an electric shock or burn. The product also contains parts that can jerk suddenly and cause injury. If this product uses a laser, laser beam leakage may cause eye damage or blindness. Do not throw toner or the toner bottle into a fire. Toner expelled from the fire may cause burns.
Use the specified parts. For replacement parts, always use the genuine parts specified in the manufacturers parts manual. Installing a wrong or unauthorized part could cause dielectric breakdown, overload, or undermine safety devices resulting in possible electric shock or fire. Replace a blown electrical fuse or thermal fuse with its corresponding genuine part specified in the manufacturers parts manual.
Installing a fuse of a different make or rating could lead to a possible fire. If a thermal fuse blows frequently, the temperature control system may have a problem and action must be taken to eliminate the cause of the problem. Handle the power cord with care and never use a multiple outlet. Do not break, crush or otherwise damage the power cord. Placing a heavy object on the power cord, or pulling or bending it may damage it, resulting in a possible fire or electric shock.
Do not use a multiple outlet to which any other appliance or machine is connected. Be sure the power outlet meets or exceeds the specified capacity. Use only the power cord supplied in the package.
Failure to use this cord could result in a fire or electrical shock. Use the power cord supplied in the package only for this machine and NEVER use it for any other product. Failure to observe this precaution could result in a fire or electrical shock. Be careful with the high-voltage parts. A part marked with the symbol shown on the left carries a high voltage. Touching it could result in an electric shock or burn.
Be sure to unplug the power cord before servicing this part or the parts near it. Do not work with wet hands. Do not unplug or plug in the power cord, or perform any kind of service or inspection with wet hands. Doing so could result in an electric shock. Do not touch a high-temperature part. A part marked with the symbol shown on the left and other parts such as the exposure lamp and fusing roller can be very hot while the machine is energized.
Touching them may result in a burn. Wait until these parts have cooled down before replacing them or any surrounding parts. Maintain a grounded connection at all times. Connect the power cord to an electrical outlet that is equipped with a grounding terminal.
Do not remodel the product. Modifying this product in a manner not authorized by the manufacturer may result in a fire or electric shock. Restore all parts and harnesses to their original positions. To promote safety and prevent product damage, make sure the harnesses are returned to their original positions and properly secured in their clamps and saddles in order to avoid hot parts, high-voltage parts, sharp edges, or being crushed.
To promote safety, make sure that all tubing and other insulating materials are returned to their original positions. Make sure that floating components mounted on the circuit boards are at their correct distance and position off the boards. Precautions for Service Jobs. A star washer and spring washer, if used originally, must be reinstalled. Omitting them may result in contact failure which could cause an electric shock or fire.
When reassembling parts, make sure that the correct screws size, type are used in the correct places. Using the wrong screw could lead to stripped threads, poorly secured parts, poor insulating or grounding, and result in a malfunction, electric shock or injury. Take great care to avoid personal injury from possible burrs and sharp edges on the parts, frames and chassis of the product.
When moving the product or removing an option, use care not to injure your back or allow your hands to be caught in mechanisms. Precautions for Servicing with Covers and Parts Removed.
Wherever feasible, keep all parts and covers mounted when energizing the product. If energizing the product with a cover removed is absolutely unavoidable, do not touch any exposed live parts and use care not to allow your clothing to be caught in the moving parts. Never leave a product in this condition unattended.
Never place disassembled parts or a container of liquid on the product. Parts falling into, or the liquid spilling inside, the mechanism could result in an electric shock or fire.
Never use a flammable spray near the product. This could result in a fire. Make sure the power cord is unplugged before removing or installing circuit boards or plugging in or unplugging connectors. Always use the interlock switch actuating jig to actuate an interlock switch when a cover is opened or removed. The use of folded paper or some other object may damage the interlock switch mechanism, possibly resulting in an electric shock, injury or blindness.
Precautions for the Working Environment. The product must be placed on a flat, level surface that is stable and secure. Never place this product or its parts on an unsteady or tilting workbench when servicing. Provide good ventilation at regular intervals if a service job must be done in a confined space for a long period of time. Avoid dusty locations and places exposed to oil or steam. Avoid working positions that may block the ventilation ports of the product. Precautions for Handling Batteries.
Lithium, Nickel-Cadmium, etc. Replace a rundown battery with the same type as specified in the manufacturers parts manual. Before installing a new battery, make sure of the correct polarity of the installation or the battery could burst. Dispose of used batteries according to the local regulations. Never dispose of them at the users premises or attempt to try to discharge one.
Precautions for the Laser Beam. Only for Products Employing a Laser Removing the cover marked with the caution label could lead to possible exposure to the laser beam, resulting in eye damage or blindness. Be sure to unplug the power cord before removing this cover. If removing this cover while the power is ON is unavoidable, be sure to wear protective laser goggles that meet specifications. Make sure that no one enters the room when the machine is in this condition. When handling the laser unit, observe the Precautions for Handling Laser Equipment.
Precautions for storing the toner or imaging cartridge. Be sure to keep the toner or imaging cartridge out of the reach of children. Licking the imaging cartridge or ingesting its contents is harmful to your health. Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturers instructions. Explosionsgefahr bei unsachgemem Austausch der Batterie. Ersatz nur durch denselben oder einen vom Hersteller empfohlenen gleichwertigen Typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers. Remplacer uniquement avec une batterie du mme type ou dun type quivalent recommand par le constructeur.
Mettre au rebut les batteries usages conformment aux instructions du fabricant. Lithiumbatteri - Eksplosionsfare ved fejlagtig hndtering.
Udskiftning m kun ske med batteri af samme fabrikat og type. Levr det brugte batteri tilbage til leverandren. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. Anvnd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera anvnt batteri enligt fabrikantens instruktion. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier kasseres i henhold til fabrikantens instruksjoner.
The PC Drum is a very delicate component. Note that replacement of a circuit board may call for readjustments or resetting of particular items, or software installation. When performing inspection and service procedures, observe the following precautions to prevent mishandling of the machine and its parts.
Precautions Before Service When the user is using a word processor or personal computer from a wall outlet of the same line, take necessary steps to prevent the circuit breaker from opening due to overloads. Never disturb the LAN by breaking or making a network connection, altering termination, installing or removing networking hardware or software, or shutting down networked devices without the knowledge and express permission of the network administrator or the shop supervisor.
All troubleshooting procedures contained herein assume that there are no breaks in the harnesses and cords and all connectors are plugged into the right positions. The procedures preclude possible malfunctions due to noise and other external causes. Precautions for Service Keep all disassembled parts in good order and keep tools under control so that none will be lost or damaged. After completing a service job, perform a safety check.
Make sure that all parts, wiring and screws are returned to their original positions. Do not pull out the toner hopper while the toner bottle is turning. This could result in a damaged motor or locking mechanism. If the product is to be run with the front door open, make sure that the toner hopper is in the locked position.
Do not use an air gun or vacuum cleaner for cleaning the ATDC Sensor and other sensors, as they can cause electrostatic destruction. Use a blower brush and cloth. If a unit containing these sensors is to be cleaned, first remove the sensors from the unit. The basic rule is not to operate the printer anytime during disassembly. If it is absolutely necessary to run the printer with its covers removed, use care not to allow your clothing to be caught in revolving parts such as the timing belt and gears.
Before attempting to replace parts and unplug connectors, make sure that the power cord of the printer has been unplugged from the wall outlet. Be sure to use the Interlock Switch Actuating Jig whenever it is necessary to actuate the Interlock Switch with the covers left open or removed.
While the product is energized, do not unplug or plug connectors into the circuit boards or harnesses. Never use flammable sprays near the printer. A used battery should be disposed of according to the local regulations and never be discarded casually or left unattended at the users premises. When reassembling parts, make sure that the correct screws size, type and toothed washer are used in the correct places. Precautions for Circuit Inspection Never create a closed circuit across connector pins except those specified in the text and on the printed circuit.
When creating a closed circuit and measuring a voltage across connector pins specified in the text, be sure to use the GND wire. Boards must not be indiscriminately removed from their protective conductive bags. Do not store or place P. Boards in a location exposed to direct sunlight and high temperature. When it becomes absolutely necessary to remove a Board from its conductive bag or case, always place it on its conductive mat in an area as free as possible from static electricity. Do not touch the pins of the ICs with your bare hands.
Protect the PWBs from any external force so that they are not bent or damaged. Never create a closed circuit across IC pins with a metal tool.
Before unplugging connectors from the P. Boards, make sure that the power cord has been unplugged from the outlet. When removing a Board from its conductive bag or conductive case, do not touch the pins of the ICs or the printed pattern. Place it in position by holding only the edges of the Board.
When touching the PWB, wear a wrist strap and connect its cord to a securely grounded place whenever possible.
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