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PagePro 1200 Series Service Manual

P/N 1750056-001

PagePro 1200 Series Table of Contents

Contents
1. Safety Precautions for Inspection and Service ............................................................5 1-1. Warning ..............................................................................................................5 1-2. Caution ...............................................................................................................7 1-3. Used Batteries Precautions .................................................................................9 1-4. Other Precautions .............................................................................................10 1-5. Precautions for Service .................................................................................... 10 1-6. Safety information ............................................................................................12 1-7. Laser Safety Label ...........................................................................................15 1-8. Laser Caution Label .........................................................................................15 1-9. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT .................16 Installation ................................................................................................................. 17 2-1. Installation Environment ..................................................................................17 2-2. Usage Environment ..........................................................................................17 2-3. Installing the Power Supply .............................................................................17 2-4. Installation Space .............................................................................................18 General Information ..................................................................................................21 3-1. Specifications ...................................................................................................21 3-2. Parts Identification ...........................................................................................25 3-3. Components Layout .........................................................................................28 3-4. Drive Section ....................................................................................................29 3-5. Electrical Components Layout .........................................................................30 3-6. Electrical Parts Function ..................................................................................33 3-7. Explanation of Control Panel ........................................................................... 35 3-8. Electrical Service Parts on P.W.Boards ...........................................................40 3-9. Timing Chart ....................................................................................................44 Mechanical/Electrical ................................................................................................45 4-1. Paper Path ........................................................................................................45 4-2. Paper Take-up Section .....................................................................................46 4-3. Drum Charge ....................................................................................................49 4-4. Laser Exposure .................................................................................................50 4-5. Development ....................................................................................................52 4-6. Image Transfer .................................................................................................54 4-7. Fusing ...............................................................................................................54 4-8. Paper Exit .........................................................................................................58 Precautions for Maintenance/Disassembly ...............................................................59 5-1. Precautions for Disassembly ............................................................................59 5-2. Maintenance Schedule List .............................................................................. 61 5-3. Required Service Tools .................................................................................... 61 5-4. Screws .............................................................................................................. 61 5-5. Disassembly Procedures ..................................................................................63 Adjustment ................................................................................................................87 6-1. Adjustment of Image Registration ...................................................................87 Troubleshooting ........................................................................................................89 7-1. Paper Misfeed Detection ..................................................................................89 7-2. PagePro 1250E Malfunction Detection ............................................................91 7-3. PagePro 1200W Malfunction Detection ..........................................................92

2.

3.

4.

5.

6. 7.

iii

PagePro 1200 Series Table of Contents

8.

7-4. Troubleshooting for Paper Misfeeds ................................................................93 7-5. Troubleshooting For Malfunctions .................................................................. 95 7-6. Image Quality Troubleshooting .......................................................................98 Wiring Diagrams .....................................................................................................103 8-1. PagePro 1250E Wiring Diagram ....................................................................103 8-2. PagePro 1200W Wiring Diagram ..................................................................104

iv

PagePro 1200 Series Safety

1.

SAFETY PRECAUTIONS FOR INSPECTION AND SERVICE

· 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.

WARNING
· Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

CAUTION
· 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.

1-1.

Warning

WARNING
1. 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 Operator's Manual. 2. 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.

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PagePro 1200 Series Safety

WARNING
3. Do not throw toner or the toner bottle into a fire. · Do not throw toner or the Toner Bottle (Imaging Cartridge, Toner Cartridge) into a fire. Toner expelled from the fire may cause burns. 4. Use the specified parts. · For replacement parts, always use the genuine parts specified in the manufacturer's 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 manufacturer's 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. 5. 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. 6. 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. 7. 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. 8. 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.

6

PagePro 1200 Series Safety

WARNING
9. Maintain a grounded connection at all times. · Connect the power cord to an electrical outlet that is equipped with a grounding terminal. 10. Do not remodel the product. · Modifying this product in a manner not authorized by the manufacturer may result in a fire or electric shock. If this product uses a laser, laser beam leakage may cause eye damage or blindness. 11. 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.

1-2.

Caution

CAUTION
1. 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.

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PagePro 1200 Series Safety

CAUTION
2. 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. 3. 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. 4. Precautions for Handling Batteries. (Lithium, Nickel-Cadmium, etc.) · Replace a rundown battery with the same type as specified in the manufacturer's 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 user's premises or attempt to try to discharge one. 5. 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." 6. Precautions for storing the toner or imaging cartridge. · Be sure to keep the toner or imaging cartridge out of the reach of children. Ingesting toner is harmful to your health.

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PagePro 1200 Series Safety

1-3.

Used Batteries Precautions

ALL Areas CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. Germany VORSICHT! Explosionsgefahr bei unsachgemäßem Austausch der Batterie. Ersatz nur durch denselben oder einen vom Hersteller empfohlenen gleichwertigen Typ. Entsorgung gebrauchter Batterien nach Angaben des Herstellers. France ATTENTION Il y a danger d'explosion s'il y a remplacement incorrect de la batterie. Remplacer uniquement avec une batterie du même type ou d'un type équivalent recommandé par le constructeur. Mettre au rebut les batteries usagées conformément aux instructions du fabricant. Denmark ADVARSEL! Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren. Finland, Sweden VAROlTUS Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti. VARNING Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens instruktion. Norway ADVARSEL Eksplosjonsfare ved feilaktig skifte av batteri. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier kasseres i henhold til fabrikantens instruksjoner.

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PagePro 1200 Series Safety

1-4.

Other Precautions

· When handling circuit boards, observe the guidelines presented in "HANDLING of PWBs". · The PC Drum is a very delicate component. Observe the precautions given in "HANDLING OF THE PC DRUM" because mishandling may result in serious image problems. · Note that replacement of a circuit board may call for readjustments or resetting of particular items, or software installation.

1-5.

Precautions for Service

· When performing inspection and service procedures, observe the following precautions to prevent mishandling of the machine and its parts. · Depending on the model, some of the precautions given in the following do not apply. 1. 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. 2. How to Use this Book DIS/REASSEMBLY, ADJUSTMENT · To reassemble the product, reverse the order of disassembly unless otherwise specified. TROUBLESHOOTING · If a component on a PWB or any other functional unit including a motor is defective, the text only instructs you to replace the whole PWB or functional unit and does not give troubleshooting procedures applicable within the defective unit. · 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. 3. 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.

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PagePro 1200 Series Safety

4. Precautions for Dis/Reassembly · Be sure to unplug the printer from the outlet before attempting to service the printer. · Generally, do 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. · 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 user's premises. · When reassembling parts, make sure that the correct screws (size, type) and toothed washer are used in the correct places. 5. 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. 6. Handling of PWBs During Transportation/Storage · P.W. Boards should be left in antistatic bags during transportation and storage. · Do not store or place P.W. 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. During Inspection/Replacement · Avoid checking the IC directly with a multimeter; use connectors on the Board. · Never create a closed circuit across IC pins with a metal tool. · Before unplugging connectors from the P.W. 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. If you cannot wear a wrist strap, touch a metal part to discharge static electricity before touching the PWB. · Note that replacement of a PWB may call for readjustments or resetting of particular items. 7. Handling of Other Parts · The magnet roller generates a strong magnetic field. Keep it away from watchs, floppy disks, magnetic cards, or CRT tubes. 8. Handling of the Imaging Cartridge During Transportation/Storage · The storage temperature is in the range between ­20 °C and +40 °C. · Do not leave the Imaging Cartridge in a hot car for an extended period of time. Handling · Store the Imaging Cartridge in a place that is not exposed to direct sunlight.

11

PagePro 1200 Series Safety

Precautionary Information on the PC Drum Inside the Imaging Cartridge · Use care not to contaminate the surface of the PC Drum with oil-base solvent, fingerprints, or other foreign matter. · Do not scratch the surface of the PC Drum. · Do not attempt to wipe clean the surface of the PC Drum.

1-6.
(1)

Safety information
Laser Safety

· This is a digital machine certified as a class 1 laser product. There is no possibility of danger from a laser, provided the machine is serviced according to the instruction in this manual. (2) Internal Laser Radiation Semiconductor Laser Maximum average radiation power(*) Wavelength *Laser Aperture of the Print Head Unit · This product employs a Class 3b laser diode that emits an invisible laser beam. The laser diode and the scanning polygon mirror are incorporated in the print head unit. · The print head unit is NOT A FIELD SERVICE ITEM. Therefore, the print head unit should not be opened under any circumstances. PagePro 1250E shown below PagePro 1200W: 27µW PagePro 1250E: 35µW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

Laser Aperture of the Print Head Unit

C4127o002AA

This figure shows the view inside the Top Cover with the Toner Cartridge and the Drum Cartridge removed.

12

PagePro 1200 Series Safety

the U.S.A., Canada (CDRH Regulation) · This machine is certified as a Class I Laser product under Radiation Performance Standard according to the Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for Laser products marketed in the United States and is reported to the Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration of the U.S. Department of Health and Human Services (DHHS). This means that the device does not produce hazardous laser radiation. · The label shown to page 13 indicates compliance with the CDRH regulations and must be attached to laser products marketed in the United States.

All Areas CAUTION Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure. semiconductor laser Maximum power of the laser diode Wavelength 5 mW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

Denmark ADVARSEL Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. Klasse 1 laser produkt der opfylder IEC60825 sikkerheds kravene. halvlederlaser Laserdiodens højeste styrke bølgelængden 5 mW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

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PagePro 1200 Series Safety

Finland, Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT

VAROITUS! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle. puolijohdelaser Laserdiodin suurin teho aallonpituus 5 mW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

VARNING! Om apparaten används på annat sätt än i denna bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1. halvledarlaser Den maximala effekten för laserdioden våglängden 5 mW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättomälle lasersäteilylle. Älä katso säteeseen.

VARNING! Osynlig laserstråining när denna del är öppnad och spärren är urkopplad. Betrakta ej stråien. Norway ADVERSEL Dersom apparatet brukes på annen måte enn spesifisert i denne bruksanvisning, kan brukeren utsettes för unsynlig laserstrålning, som overskrider grensen for laser klass 1. halvleder laser Maksimal effekt till laserdiode bølgelengde 5 mW PagePro 1200W: 770-810nm PagePro 1250E: 770-795nm

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PagePro 1200 Series Safety

1-7.

Laser Safety Label

· A laser safety label is attached to the outside of the machine as shown below.

THIS PRODUCT COMPLIES WITH 21 CFR CHAPTER I, SUBCHAPTER J. or/and

C4127o0559AA

1-8.

Laser Caution Label

· A laser caution label is attached to the inside of the machine as shown below.

C4127o502AA

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PagePro 1200 Series Safety

1-9.

PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT

· When a disassembly job needs to be performed in the laser beam path, such as when working around the printerhead and PC Drum, be sure first to turn the printer OFF. · If the job requires that the printer be left ON, take off your watch and ring and wear laser protective goggles. · A highly reflective tool can be dangerous if it is brought into the laser beam path. Use utmost care when handling tools on the user's premises.

16

PagePro 1200 Series Installation

2.
2-1.

Installation
Installation Environment

2-2.

Usage Environment

In order to make sure the printer functions properly, please make sure the ambient environment satisfies the following requirements:
Temperature: 10-35°C Humidity: 15-85%RH Temperature fluctuation: ±10°C per hour or less Humidity fluctuation: ±20% RH per hour or less

2-3.

Installing the Power Supply

Do not plug the Power Cord into a power outlet via an extension cord supplying electricity to more than one unit. Do not connect the printer to a power outlet used for other equipment or appliances. More than one appliance connected to a single outlet could cause a drop or surge in the electrical supply, resulting in operational problems for the printer.
Voltage fluctuation Frequency fluctuation Specified voltage ±10% Specified frequency ±3Hz

The following items should be checked periodically: · Make sure the power supply plugs do not feel warm. · Power supply cords should be free of cracks and scratches. · Power supply plugs should be firmly plugged into outlets.

17

INSTALLATION

When installing the printer, please avoid the types of locations listed below, both for safety considerations and to avoid breakdowns. · Areas with high temperatures or humidity, or with low temperatures and humidity · Areas where the temperature and/or humidity fluctuate sharply · Places where the printer will be in direct sunlight · Areas near a cooler, heater, ventilation opening or in the direct path of wind · Areas near heaters or other heat-generating equipment · Locations with poor ventilation · Areas where water is likely to fall on the equipment or electrical short is likely · Areas where corrosive gases (ammonia gases, etc.) are present · Areas where there is a high volume of dust, dirt and vibration · Areas where the floor is not sufficiently strong or is not level · Areas containing volatile and flammable materials and curtains

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PagePro 1200 Series Installation

2-4.

Installation Space

PagePro 1200W shown below

3.9 in. (100 mm)

5.9 in. (150 mm)

11.8 in. (300 mm)

3.9 in. (100 mm) 35.1 in. (891 mm)

C4127o507AA

11.2 in. (285 mm)

15.6 in. (395 mm)

21.7 in. (550 mm)

16.1 in. (410 mm) 18.7 in. (475 mm)
C4127o508AA

18

23.2 in. (589 mm)

PagePro 1200 Series Installation

PagePro 1250E shown below

3.9 in. (100 mm)

5.9 in. (150 mm)

11.8 in. (300 mm)

3.9 in. (100 mm) 35.1 in. (891 mm)
C4127o007AA

11.2 in. (285 mm)

15.6 in. (395 mm)

21.7 in. (550 mm)

17.4 in. (441 mm) 19.9 in. (505 mm)
C4127o008AA

19

23.6 in. (600 mm)

PagePro 1200 Series Installation

20

PagePro 1200 Series General Information

3.
3-1.
(1)
Type

General Information
Specifications
Printer
Desk-Top Laser Beam Printer Electrostatic dry powdered imaging system Laser diode + Polygon Mirror scanning PagePro 1200W: 300 DPI (dot/inch), 600 DPI (dot/inch), 1200 DPI (dot/inch) PagePro 1250E: DPI (dot/inch), 1200 DPI (dot/inch) A4L (210 x 297 mm) JIS B5L (182 x 257 mm) A5 L (148 x 210 mm)*1 LetterL (8.5 x 11 in) LegalL (8.5 x 14 in) ExecutiveL (7.25 x 10.5 in) Half Letter (5.5 x 8.5 in)*1 Chinese 16K (185 x 260 mm)*1 Chinese 32K (130 x 185 mm)*1 Envelope (Commercial 10, Monarch, DL, C5, C6, B5, Choukei-3Gou, Choukei-4Gou)*1 Postcard*1 Custom paper (3.0-8.5 in x 5.0-14.0 in; 76-216 x 127-356 mm)*1 *1: Multi-purpose Tray only Plain paper (16 to 24 lbs; 60-90 g/m2), transparencies*1, envelopes*1,thick paper*1,postcard*1 *1: Multi-purpose Tray only At 300 dpi: 15 sec. or less (A4 or Letter) (PagePro 1200W only) At 600 dpi: 15 sec. or less (A4 or Letter) At 1200 dpi: 24 sec. or less (A4 or Letter) At 300 dpi: 12 prints/min. or more (A4 or Letter) (PagePro 1200W only) At 600 dpi: 12 prints/min. or more (A4 or Letter) At 1200 dpi: 6 prints/min. or more (A4 or Letter) Within 21 sec. (when the rated voltage is supplied at 23°C) Recovery time from Save mode: within 8 sec. (when the rated voltage is supplied at 23°C) PagePro 2100W: 73.90 mm/sec PagePro 2150E: 94.886 mm/sec PagePro 2100W: 36.95 mm/sec (during half-speed control) PagePro 2150E: 44.443 mm/sec (during half-speed control)

Printing System Exposure System Resolution Media Size

3
GENERAL INFORMATION

Media Type

First Printing Time

Multi Print Speed

Warm-up Time

System Speed

Paper Feeding System

2-way system (Maximum 3-way)*2

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PagePro 1200 Series General Information

Multi-purpose Tray (plain paper: 150 sheets) Manual Feed Tray (1 sheet) Second Paper Cassette Unit (plain paper: 500 sheets) *2: Expandable to 3-way system when the optional Second Paper Cassette Unit is installed. Paper Exit System Drum Charging System Developing System Density Control Image Transfer System PC Drum Drum Cleaning System Paper Separating System Fusing System Face down (maximum: 100 sheets) Face up (maximum: 20 sheets) Rotating brush and pre-charge film system Single element developing system FMT (Fine Micro Toning) system Developing bias adjusting system Transfer Roller system OPC (Organic Photoconductor) Non-cleaner system Curvature separating system and charge neutralizing pin Heated roller system PagePro 1200W (closed face-down tray): Width:15.3 in (389 mm) Depth:17.4 in (253 mm) Height:10.2 in (262 mm) PagePro 1250E (closed face-down tray): Width:15.3 in (389 mm) Depth:17.1 in (435 mm) Height:10.4 in (263 mm) Approximately 15.4 lbs (7.0 kg) (without cartridges) Drum Cartridge: approx. 0.66 lbs (0.3 kg) Toner Cartridge:approx. 1.1 lbs (0.5 kg) Power Supply Voltage AC100 V ± 10%, AC110-127 V (AC110 V - 10%, AC127 V + 6%), AC220-240 V ± 10% Frequency Power Consumption 50/60 Hz ± 3 Hz Operating: 810 W or less (100 V area), 840 W or less (120 V area), 850 W or less (220-240 V area) Continuation printing (average): 330 W or less Standby (fuser off): 15 W or less Standby (fuser on): 50 W or less (average) Standby (sleep): 15 W or less Acoustic noise PagePro 1200W: Printing: 62 dB or less*3 PagePro 1250E: Printing: 67 dB or less*3 Standby: 30 dB or less*3 *3; Supporting Blue Angel Operating Environment Drum Cartridge Life 50° to 95°F (10° to 35°C),15 to 85% 20,000 prints or more (in continuous printing) 15,000 prints or more (in single printing) *Black/White ratio=5%

Dimensions

Weight

22

PagePro 1200 Series General Information

Toner Cartridge Life (replacement T/C) Toner Cartridge Life (starter T/C) Options

6,000 prints or more (in continuous printing) 4,800 prints or more (in single printing) *Black/White ratio=5% 1,500 prints or more (in continuous printing) 1,200 prints or more (in single printing) *Black/White ratio=5% Face-up Tray Second Paper Cassette Unit PagePro 1250E only: Expansion memory (SDRAM-DIMM)

(2)

Second Paper Cassette Unit (Option)
Second Paper Cassette Unit Standard cassette: Letter (for U.S.A), A4 (for Europe) Option cassette: Legal, Executive, JIS B5 Plain paper (16 to 24 lbs; 60-90 g/m2) Recycled paper(16 to 24 lbs; 60-90 g/m2)

Name Paper Cassette Media Type

Cassette Capacity Paper Feeding System Power Source Drive Source

Up to 500 sheets One-way system with paper separation by means of paper separators supply from main unit (DC24V, DC5V) supply from main unit Width: 15.0 in (382 mm) Depth: 12.0 in (305 mm) Height: 5.3 in (135 mm) (without Paper Cassette) approx. 4 lbs (1.8 kg) *without Paper Cassette

Dimensions

Weight

23

PagePro 1200 Series General Information

(3)

Controller

PagePro 1200W:
CPU ASIC Imaging Method Memory configuration Standard Interface Toner Saver Mode Resolution Printer Driver M38073M4 N1-Chips(Naltec original ASIC) Band Buffer method Run-length compression Standard ROM:64KB Standard RAM:8MB IEEE1284 Parallel (Compatible/Nibble/ECP) USB (Revision 1.1 compliant) On / OFF 300 x 300 dpi, 600 x 600 dpi, 1200 x 1200 dpi (at half speed) Standard (GDI) driver: For Windows95/98/NT4.0/2000/Me /WindowsXP

PagePro 1250E:
ASIC Imaging Method Memory configuration Destiny ASIC D8401A 75MHz Band Buffer method Standard ROM: 4MB Standard RAM: 16MB(64Mbit SDRAM: 1M x 16 bit x 4) Capacity: 16, 32, 64, 128 MB Function type: Burst mode CAS Latency: 2 or 3 ECC: None (Usable even with ECC) Access speed: 10 ns Number of pins: 168 Module type: SDRAM-DIMM (Double In-line Memory Module) Operating voltage: 3.3V IEEE1284 Parallel (Compatible/Nibble/ECP) USB (Revision 1.1 compliant) Equipping a function equivalent with HP's Ret Function to regulate the toner consumption Function to regulate the toner consumption 600 x 600 dpi, 1200 x 1200 dpi (at half speed) PCL XL 2.0, PCL 5e, Adobe PostScript 2.0 (Compatible with HP LaserJet 1200) Standard (PCL5e) driver: For Windows95/98/NT4.0/2000//Me Enhanced (PCLXL) driver: For Windows95/98/NT4.0/2000/Me PS driver: For Windows95/98/NT4.0/2000/Me, Macintosh OS 9.x/X 1 bitmap font 80 outline fonts(35 Agfa Intellifont, 10 True Type fonts, 35 PS fonts) Configuration Page Demo Page PCL Resident font List PS Resident font List

DIMM specifications

Standard Interface Fine-ART Mode Toner Saver Mode Image Density Resolution Emulation

Printer Driver

Printer Resident Fonts

Test Print

24

PagePro 1200 Series General Information

3-2.

Parts Identification

PagePro 1200W shown below 9 2

1

8

3

4127s006a

7

4

10

6 5

4127s006b

C4127o005AA

1 2 3 4 5 6 7 8 9 10

Face-up Tray Face-down Tray Manual Feed Tray Multi-purpose Tray Paper Cassette (Option) Second Paper Cassette Unit (Option) Power Switch Top Cover Release Button Drum Cartridge Toner Cartridge

25

PagePro 1200 Series General Information

PagePro 1250E shown below
9 2

1

8

3

4127s006a

4 7 10 6 5

4127s006b

C4127o005AA

1 2 3 4 5 6 7 8 9 10

Face-up Tray Face-down Tray Manual Feed Tray Multi-purpose Tray Paper Cassette (Option) Second Paper Cassette Unit (Option) Power Switch Top Cover Release Button Drum Cartridge Toner Cartridge

26

PagePro 1200 Series General Information

PagePro 1250E shown below

11

12

13

16 15 14
4127s008

11 12 13 14 15 16

Face-up / Face-down Selection Switch Face-up Exit Roller Power Cord Socket Power Cord Parallel Interface Connector USB Interface Connector

27

PagePro 1200 Series General Information

3-3.

Components Layout

PagePro 1250E shown below. Note: The PagePro 1200W multipurpose tray has no cover.

1 23

2

3 4 5

22

6 7

21 20 19

8 9 10

18 17 12

11

13
250cd

16 1 2 3 4 5 6 7 8 9 10 11 12 Toner Cartridge Drum Cartridge Face-up / Face-down Selection Switch Face-up Tray * Fusing Separator Paper Exit Sensor (PS3) Backup Roller Heat Roller PC Drum Image Transfer Roller Paper Take-up Sensor (PS1) Second Paper Cassette Unit * 13 14 15 16 17 18 19 20 21 22 23

15 Paper Take-up Roller

14

Second Paper Take-up Roller * Paper Empty Detecting Lever * Paper Lift-up Plate * Paper Cassette * Paper guide Multi-purpose Tray Paper guides for manual feed tray Paper Empty Sensor (PE1) Print Head Unit Face-down Tray

* 4, 12, 14, 15, 16, and 17: Options

28

PagePro 1200 Series General Information

3-4.
(1)

Drive Section
Overview

The Main Motor (M1) transmits the drive to the rollers of the printer and the Second Paper Cassette Unit via each gear as shown below. 1 2 3 4 5 6 7 8 9

10

12 11

14

13

4127s011

1 2 3 4 5 6 7

Paper Exit Roller (Face-up) Backup Roller Paper Exit Roller (Face-down) Heat Roller Image Transfer Roller Drum Charge Brush PC Drum

8 9 10 11 12 13 14

Sleeve Roller Toner Transport Roller Paper Take-up Roller Drive Transmission Gear Second Paper Cassette Unit Section (option) 2nd Paper Take-up Roller Main Motor (M1)

29

PagePro 1200 Series General Information

3-5.
(1)

Electrical Components Layout
Printer
TH1 TS1 PS3

HV1

H1 M2

S2

PH PU1

S1 PS1 SL1 M1

PE1

4127M004AA

M1 M2 H1 TH1 TS1 PH S1

Main Motor Cooling Fan Motor Heater Lamp Thermistor Thermostat Print Head Unit Power Switch

S2 PE1 PS1 PS3 SL1 PU1 HV1

Interlock Switch Paper Empty Sensor Paper Take-up Sensor Paper Exit Sensor Paper Take-up Solenoid Power Unit High Voltage Unit

30

PagePro 1200 Series General Information

(2)

Controller

PagePro 1200W shown below

PWB-OP

PWB-P PWB-M

4121s012

PWB-P PWB-M PWB-OP

Controller Board Interface Board Operation Panel Board

PagePro 1250E shown below

PWB-P

4121s012

PWB-P

Controller Board

31

PagePro 1200 Series General Information

(3)

Second Paper Cassette Unit (option)

PWB-A PI2

SW21

SL21

4127s014

PI2 PWB-A SL21 SW21

Paper Empty Sensor Connecting Board Paper Take-up Solenoid Cassette Type Detecting Switch

32

PagePro 1200 Series General Information

3-6.
(1)

Electrical Parts Function
Printer
Name Heater Lamp Function A halogen lamp that supplies heat to the Fusing Rollers (600 W) Supplies power to the following sections: - Drum Charge Brush: Charged voltage - Developing Sleeve Roller: Developing bias voltage - Developing Toner Regulation Plate: Developing blade voltage - Developing Toner Collecting Plate: Developing Lower Seal voltage - Image Transfer Roller: Image transfer voltage Provides the drive source for the printer. Exhausts heat from the body A regular heptagon polygon mirror is installed, and rotates at high speed and makes the laser scan in scanning direction. Detects that a sheet of paper is taken up. The signal is L when paper is detected. Detects that a sheet of paper is taken up. PagePro 1200W: The signal is L when paper is detected. PagePro 1250E: The signal is H when paper is detected. Detects when the paper is fed out. PagePro 1200W: The signal is L when paper is detected. PagePro 1250E: The signal is H when paper is detected. Converts the power voltage from AC voltage into DC voltage and supplies that to H1. Communicates with the personal computer and controls all printer operation. Detects the start point of printing via the laser diode and SOS sensor, and illuminates the PC Drum with the laser beam according to the image signals. Turns ON or OFF the printer. Detects the opening or closing of the Top Cover. Cuts output voltage (except 5 VDC) when the Top Cover is open. Transmits the drive of the Main Motor to the Paper Take-up Roller. Detects the temperature of the Heat Roller, measures the temperature on the surface of the Heat Roller and sends to the Heater control circuit. Cuts power to the Heater Lamp (H1) when overheating (215°C) is detected at the Fusing Section.

Symbol H1

HV1

High Voltage Unit

M1 M2 M3

Main Motor Cooling Fan Motor Polygon Motor (Inside of the Print Head Unit) Paper Empty Sensor

PE1

PS1

Paper Take-up Switch

PS3

Paper Exit Sensor

PU1 PWB-P

Power Unit Controller Board Laser Diode Drive Board (Inside of the Print Head Unit) Power Switch Interlock switch

PWB-LD2 S1 S2

SL1

Paper Take-up Solenoid

TH1

Thermistor

TS1

Thermostat

33

PagePro 1200 Series General Information

(2)

Second Paper Cassette Unit (option)
Name Function Controls gears and clutches to transmit the drive from the Main Motor to Paper Take-up Rollers. The drive is transmitted when the solenoid is energized. Triple push switches for detecting the cassette type according to the paper size. Detects the presence of paper. The signal is L when the paper is detected. Sends/receives power and control signals from the printer to/from components in the Second Paper Cassette Unit.

Symbol

SL21

Paper Take-up Solenoid

SW21 PI2

Cassette Type Detecting Switch Paper Empty Sensor (on the PWB-A) Connecting Board

PWB-A

34

PagePro 1200 Series General Information

3-7.

Explanation of Control Panel

The control panel has two indicator lights (LEDs) and one button.

1

2

3

C4127o006AA

1 2 3

Error indicator (orange) Ready indicator (green) Panel button

(1)

Indicator Lights

Different combinations of the two indicator lights indicate the current printer status and let the user know what the printer is doing. The details of the current printer status appear on the host computer.

35

PagePro 1200 Series General Information

(2)

Indicator Status
Error indicator (orange) Off Off Off Off Condition Printer is off. Printer is ready to print. Printer is warming up. Receiving data Processing data Printing Power on initialize

Ready indicator (green) Off On Rapid blinking Blinking

On Slow blinking Rapid blinking Blinking

On Off Rapid blinking Blinking

Cancelling a print job Resetting a counter Power save mode Reset mode PagePro 1250E: Demo page/Configuration page select mode Memory overflow or print job is too complex. No paper in paper feed tray specified in printer driver. Paper size error Waiting for paper to be loaded into Tray 1 during manual duplex printing PagePro 1200W: Waiting for the proof to be approved Paper empty Paper misfeed Top cover is open *FATAL ERROR 01 Main Motor error *FATAL ERROR 02 Polygon Motor error *FATAL ERROR 03 Fuser Fan error *FATAL ERROR 04 H.V. error *FATAL ERROR 05 Laser error *FATAL ERROR 06 Fuser Warmup error *FATAL ERROR 07 Fuser Temperture LOW error *FATAL ERROR 08 Fuser Overheat error *FATAL ERROR 09 Engine I/F error *FATAL ERROR 20 Controller Memory error *FATAL ERROR 11 Controller SIMM error (PagePro 1250E) *Fatal Error 21 Controller DIMM Error error (PagePro 1200W)

Rapid blinking alternately

Off Off Off

Slow blinking Blinking On

Off*

Rapid blinking

* Displayed in the Status Monitor (within the printer status window box) of the PC.

36

PagePro 1200 Series General Information

(3)

Control Panel Button Function

The panel button is used to perform the various operations as detailed below according to the status of the printer: · reset the counter · cancel a print job · print out the configuration page (PagePro 1250E only) · continue a print job after an error message · reset the printer (PagePro 1250E only) ·
Function Explanation Use the following procedure whenever you want to reset the counter. 1. Turn off the printer. 2. While holding down the Panel button, turn on the printer. The green "Ready" indicator begins to blink. 3. Keep the Panel button held down, and the "Ready" indicator will start to blink. After the "Ready" indicator has blinked for about 5 seconds, release the Panel button. All two indicators begin to blink. After all the indicators blink, the printer enters the counter reset mode. Refer to P.32. Use the following procedure whenever you want to cancel the current job. 1. While data is being processed or printed (When the green "Ready" indicator is blinking), hold down the Panel button for more than 5 seconds. 2. Release the Panel button after both indicators light up. The current print job has now been cancelled. Use the following procedure whenever you want to configuration for printer. 1. Make sure that: · the orange "Error" indicator is off, and the green "Ready" indicator is on (but not blinking). 2. Briefly press the panel button. All indicators blink rapidly. 3. Press the Panel button. The page that is printed depends on the number of times that the Panel button is pressed. · If the Panel button is pressed two more times, the configuration page is printed. · If the Panel button is pressed three more times, the PCL font list is printed. · If the Panel button is pressed four more times, the PS font list is printed. Continue the print job after correcting the following types of errors: · when the print job is too complex and the memory capacity of the printer is inadequate · when there is no more paper in the feed trays · when paper of a different format to that set in the printer driver was fed into the printer 1. Check that one of the above errors has occurred. 2. Press the panel button in order to operate the page feed. The print job continues. Initialize the settings to factory default. 1. Turn OFF the Power Switch. 2. Open the Top Cover and, holding down the panel button, turn ON the Power switch. 3. Keep pressing the panel button for 20 sec. or more. (The two LED indicators flash off and on at a slow pace and then only the Error indicator lights up steadily.) 4. Release the panel button and close the Top Cover.

Reset the counter

Job Cancel

Print Configuration Page

Continue a print job after an error message

Reset the printer

37

PagePro 1200 Series General Information

(4)

To Reset the Counter of the Toner Cartridge

Perform the following procedure to reset the toner cartridge counter after you replace the toner cartridge. 1. Turn off the printer. 2. While holding down the panel button, turn on the printer. The green "Ready" indicator begins to blink. 3. Keep the panel button held down, and the "Ready" indicator will start to blink. After the "Ready" indicator has blinked for about 5 seconds, release the panel button. All two indicators begin to blink. 4. After confirming that all the indicators are blinking, press and hold down the panel button again for at least 5 seconds. Both indicators light up for about 5 seconds, and then the two indicators begin to blink. The counter for the toner cartridge has now been reset. 5. Turn the printer off and then on again. Once the green "Ready" indicator remains on permanently, the printer is again in Standby mode. (5) To Reset the Counter of the Drum Cartridge

Perform the following procedure to reset the drum cartridge counter after you replace the drum cartridge. 1. Turn off the printer. 2. While holding down the panel button, turn on the printer. The green "Ready" indicator begins to blink. 3. Keep the panel button held down, and the "Ready" indicator will start to blink. After the "Ready" indicator has blinked for about 5 seconds, release the panel button. All two indicators begin to blink. 4. After confirming that all the indicators are blinking, briefly press the panel button. Both indicators light up for about 5 seconds, and then the two indicators begin to blink. The counter for the drum cartridge drum cartridge has now been reset. 5. Turn the printer off and then on again. Once the green "Ready" indicator remains on permanently, the printer is again in Standby mode.

38

PagePro 1200 Series General Information

(6)

Test Print Function (PagePro 1250E only)

The configuration page should be printed out in order to ensure that the printer is operating correctly. 1. Make sure that: the orange "Error" indicator is off, and the green "Ready" indicator is on (but not blinking). 2. Briefly press the panel button. All indicators blink rapidly. 3. Press the Panel button. The page that is printed depends on the number of times that the Panel button is pressed. · If the Panel button is pressed two more times, the configuration page is printed. · If the Panel button is pressed three more times, the PCL font list is printed. · If the Panel button is pressed four more times, the PS font list is printed.

Configuration Page Sample

39

PagePro 1200 Series General Information

3-8.
(1)

Electrical Service Parts on P.W.Boards
PagePro 1250E PWB-P (Controller Board)

LED3 SW1

LED2

CON1

U2

U3

CON3

U7 U8

DSW1

U11 VR101 PJ5 PJ9 PJ12 PJ3
PJ11 PJ13

COM5

IC1 CON6 PJ8 PJ2

U17 PJ10

PJ6

PJ4

Symbol CON1 CON3 CON5 LED2 LED3 IC1 U11 U17 U2 U3 U8 DSW1 VR101

Item Connector Connector Connector LED LED CPU ASIC EEPROM SDRAM SDRAM ROM DIP switch Volume

Explanation Slot for 168-pin SDRAM-DIMM (max. 128MB) USB (Revision 1.1 compliant) IEEE 1284 Parallel (Compatible/Nibble/ECP) Orange LED Green LED M38079EFFS Destiny ASIC D8401A Serial EEPROM 8MB (1M x 16bit CMOS) SDRAM 8MB (1M x 16bit CMOS) SDRAM Firmware ROM 1. ON: Letter, OFF:A4 2. Factory Use Only (Normally ON) 3. Factory Use Only (Normally ON) Adjusts the image registration margin.

40

PJ7

PagePro 1200 Series General Information

(2)

PagePro 1200W WB-P (Controller Board) PWB-M (Interface Board) PWB-OP (Operation Panel Board)

PWB-OP
SW1 LED1 LED2

PWB-P
PJ104 PJ105 IC103 PJ106 VR1 IC1 IC102 PJ108 IC101

PWB-M
PJ3 PJ1

PJ2 PJ8 PJ4 PJ2 PJ10 PJ7

PJ5

PJ9 PJ12 PJ3 PJ11 PJ13 PJ6

Symbol LED1 LED2 PJ1 PJ2 PJ3 PJ108 IC1 IC101 IC102 IC103 VR1

Item LED LED Connector Connector Connector Jumper post CPU ASIC SDRAM EEPROM Volume

Explanation Green LED Orange LED Relay connector IEEE 1284 Parallel (Compatible/Nibble/ECP) USB (Revision 1.1 compliant) For Parallel Port Setting Left Side: ECP Mode Right Side: Except ECP Mode M38073M4 N1-chip 8MB SDRAM Serial EEPROM Adjust the Image registration margin.

41

PagePro 1200 Series General Information

(3)

PU1 (Power Unit)

CN1(2P)

F2 S1 F1 VR61 CN3(2P) CN2(7P)
4127s016

F1 F2 VR61

Protection Fuse (100-120 V area: 5 A, 125 V), (220-240 V area: 4 A, 250 V) Protection Fuse (100-120 V area: 12 A, 250 V), (220-240 V area: 6.3 A, 250V) For factory setting only [Do not touch]

42

PagePro 1200 Series General Information

(4)

HV1 (High Voltage Unit)

C B SS T BL

VR51 CN1(10P)
4127s017

C B SS BL T VR51

Drum Charging Voltage terminal (DC-1400 V max) Developing Voltage terminal (DC-400 V max)) Developing Lower Seal Voltage terminal (DC-400 V max) Developing Toner Blade Voltage terminal (DC-700 V max) Image Transfer terminal (DC4300 V max/ DC-600 V max.) For factory setting only [Do not touch]

43

PagePro 1200 Series General Information

3-9.
(1)

Timing Chart
Print Starting

Print command (/PRINT) Polygon Motor (M5) Main Motor (M1) Paper Take-up Solenoid (SL1) Paper Take-up Sensor (PS1) Drum Charge (output) Exposure (output) Development (output) Image Transfer (output)
4127s070

(2)

Print Ending

Paper Exit Sensor (PS3) Polygon Motor (M5) Main Motor (M1) Exposure (output) Drum Charge (output) Development (output)

Image Transfer (output)
4127s071

44

PagePro 1200 Series Mechanical / Electrical

4.
4-1.

Mechanical/Electrical
Paper Path

Paper can be fed into the printer either from the Multi-purpose Tray (PagePro 1200W: 150 sheets; PagePro 1250E 200 sheets) or Manual Feed Tray. The paper feed system can be extended to a 3-way system by Installing the Second Paper Cassette Unit (500 sheets). The paper fed by the Paper Take-up Roller is transported to the Image Transfer Roller, Fusing Roller and then Paper Exit Roller. After this, the paper is fed out onto the Print Tray PagePro 1250E shown below.
Face-down

Face-up (Option)
Exit

Laser Exposure Fusing Print Head Unit Drum Charge PC Drum Manual Feed Tray Development Image Transfer Multi-purpose Tray

4
MECHANICAL/ELECTRICAL

Paper Take-up Paper Take-up

4127s020

Second Paper Cassette Unit (option)

45

PagePro 1200 Series Mechanical / Electrical

4-2.
(1)

Paper Take-up Section
Multi-purpose Tray

Mechanism · When the Paper Take-up Solenoid is energized, the drive of the Main Motor is transmitted to the Paper Take-up Roller via the Paper Take-up Gear (one-way clutch) to turn the Paper Take-up Roller one revolution. · At the same time, the Depressing Cam turns and lifts the Paper Lifting Plate, and the first (top) sheet of paper on the tray is fed to the printer. · The Fixed Separating Pad is used for the paper separation system. It prevents the second and subsequent sheets of paper from being fed together with the top sheet. · The actual length of the paper is detected using the period of time through which the Paper Takeup Sensor remains energized (or through which the paper moves past the sensor) and it is determined whether the actual length matches the paper length specified by the controller.
Paper Take-up Roller Depressing Cam

Paper Take-up Sensor (PS1)

Paper Empty Sensor (PE1)

Paper Tray

4127s021

Paper Take-up Solenoid (SL1) Paper Take-up Gear

When SL1 is de-energized

When SL1 is energized Paper Tray Depressing Cam

4127s022

4127s023

46

PagePro 1200 Series Mechanical / Electrical

Paper Empty Detection There is a Paper Empty Sensor provided on the upper side of the Multi-purpose Tray. It functions to detect a paper-empty condition in the Multi-purpose Tray and the Manual Feed Tray. When there is paper, the actuator is raised and thus the sensor light is blocked. When paper runs out, the actuator drops into a cutout in the tray, thus unblocking the sensor light. (2) Second Paper Cassette Unit (option)

Mechanism · Since a drive motor is not installed in this unit, the drive of M1 is transmitted to the paper take-up and transport sections in the unit via the Drive Transmission Gear. · Although the feeding method is the same as the Multi-purpose Tray in the printer, the corner separation system is employed in this unit as the paper separating method. · Paper is separated at the corner by the paper separation finger in the paper cassette and the strength of paper itself (corner separation system). One sheet of paper is fed for each paper takeup cycle. · The Paper Take-up Solenoid (SL21) in the unit is controlled by the printer via PWB-A in the unit.
Drive Transmission Gear Paper Take-up Roller Connecting Board (PWBA) Paper Empty Sensor (PI2)

Paper

Paper Take-up Solenoid (SL21)

4127s024

Paper Empty Detection There is a Paper Empty Sensor provided on the Connecting Board, detecting a paper-empty condition in the Second Paper Cassette Unit. When there is paper, the actuator is raised and thus the sensor light is blocked. When paper runs out, the actuator drops into a cutout in the Paper Lifting Plate, thus unblocking the sensor light.

47

PagePro 1200 Series Mechanical / Electrical

Cassette Type Detection The Second Paper Cassette Unit is provided with a Cassette Type Detecting Switch that comes with a lever. When the paper cassette is slid into position, the projections on the right-hand side of the cassette push the lever according to the size of the paper loaded in the cassette, thus turning off or on the Cassette Type Detecting Switch. The Cassette Type Detecting Switch consists of three subswitches. The combination, in which these subswitches are turned on and off, allows the printer to determine the cassette type (or the paper size).
Cassette Type Detecting Switch (SW21) Lever OFF

ON
4121s026

SW21-3 projections Paper Cassette
4121s025

SW21-2 SW21-1

SW21settings for paper sizes
Cassette Type A4 B5 Letter Legal Executive No Cassette (Undefined) SW21-1 OFF ON OFF ON OFF OFF ON ON SW21-2 OFF ON ON OFF ON OFF ON OFF SW21-3 ON OFF OFF OFF ON OFF ON ON

48

PagePro 1200 Series Mechanical / Electrical

4-3.
(1)

Drum Charge
Overview

· The PC Drum is charged with static electricity before laser exposure. · The Drum Charge Brush and the Pre-charge Film are used for the charging method. · The Drum Charge Brush and Pre-charge Film charging generate little ozone in the printer. Because the charge is directly applied to the PC Drum, the PC Drum can be charged by low voltage. At the same time, the PC Drum can be charged stably and evenly. · The Pre-charge Film supplies the charge to the PC Drum before being charged by the Drum Charge Brush to improve the charging efficiency. · The Drum Charge Brush is turned by the drive of the Main Motor (M1) via a gear. · The electric potential on the surface of the charged PC Drum is approximately-800 V.

Drum Cartridge

Drum Charge Brush Laser Exposure Paper Dust Remover

Development Sleeve Roller

Pre-charge Film

Image Transfer Roller PC Drum
4121s030

Drum Cover
1

2

4

1. 2. 3. 4.

Drum Charge Brush PC Drum Earth Drum Charge Brush voltage
4110s031

3

49

PagePro 1200 Series Mechanical / Electrical

4-4.

Laser Exposure

Laser exposure is the process of creating an invisible static charge image on the PC Drum by the laser beam emitted from the Print Head Unit. This process is controlled as follows in order to appropriately time image printing.
Print Head Unit PC Drum

SOS Sensor (PWB-LD2) Laser Diode
4127s036 4110s032

Polygon Motor (M3)

In the sub-scanning direction (vertical direction) · When the printer receives the PRINT signal, the Polygon Motor and the Main Motor rotate and the paper is fed into the printer. · The printing in the sub-scanning direction is started when the Controller Board sends the VIDEO signal to the Print Head a certain time after the leading edge of the paper activates the Paper Sensor (TOD signal). · The print starting position for the 2nd line is decided by delaying the VIDEO signal sending timing. In the scanning direction (horizontal direction) · The SOS Sensor is installed on the Laser Diode Control Board to unify the laser emission timing for each scan line.

50

PagePro 1200 Series Mechanical / Electrical

PRINTING AREA · The controller sends the VIDEO signal at the appropriate paper size to the engine (Controller Board). · The controller determines the start point of printing according to the TOD signal (sub-scanning direction) sent from the engine (Controller Board) and the HSYNC signal. · Laser exposure is started when the print head receives the VIDEO signal.

/VIDEO

/VIDEO

4 mm

Print Area

4 mm

51

/TOD

/HSYNC

PagePro 1200 Series Mechanical / Electrical

4-5.
(1)

Development
Overview

Toner is applied to the invisible static image on the PC Drum and a toner image (developed image) is created on the drum surface
Toner Cartridge PC Drum

7 6 1 2

4121s032

5 3 4
4121s031

8

6 4 7 3 8
9 10 11
4110s034

11
0992s24

10 9

52

PagePro 1200 Series Mechanical / Electrical

(2)
No. 1 2 3 4 5 6

Explanation of Each Part
Name Toner Hopper Toner Agitating Screw Toner Transport Roller Sleeve Roller Resin Sleeve PC Drum Description Contains toner. Agitates the toner in the Toner Hopper and sends the toner to the Toner Transport Roller. Transports the toner to the Sleeve Roller. Turns the Resin Sleeve. Carries the toner to the PC Drum surface for development. Exposed to laser to create an invisible image and rotates to carry the developed image to the paper surface. Spreads a thin, even coat of toner over the Resin Sleeve. The toner is negatively charged when passing between this Blade and the Resin Sleeve. Separates toner, which has not been attracted to the PC Drum, from the Resin Sleeve and returns it back to the Buffer Section. DC-550V (DC-700 V max.) DC-300V (DC-400 V max.) DC-300V (DC-400 V max.)

7

Toner Blade

8 9 10 11

Bias Seal Developing Blade Voltage terminal (VBL) Developing Voltage terminal (VB) Developing Lower Seal Voltage terminal (VSS)

53

PagePro 1200 Series Mechanical / Electrical

4-6.
(1)

Image Transfer
Overview

· Image transfer is the process of transferring the toner image created on the PC Drum in the developing process to paper. · Roller image transfer is used instead of corona image transfer as the image transfer method. · In roller image transfer, there is little generation of ozone due to corona discharge. Also, there is no blur of toner because the paper is always pressed by the PC Drum and the Image Transfer Roller. · When cleaning the Image Transfer Roller and before printing, reverse bias is applied. · The residual electric potential on the paper is dissipated via a discharge needle.

PC Drum

Paper Image Transfer Roller
4121s034

Paper PC Drum Discharge Needle

Image Transfer Roller

Reverse Bias

Image Transfer Bias

4127s026

4-7.

Fusing

54

PagePro 1200 Series Mechanical / Electrical

(1)

Overview

· The toner image transferred onto the paper is securely fixed to the paper. · A heat roller system is used as the fusing system. The toner image is fused by the Heat Roller heated by the Heater Lamp, and securely fixed by the pressure between the Heat Roller and Backup Roller.

Paper Paper Separator Thermostat (TS1) Backup Roller Thermistor (TH1)

Heater Lamp (H1)

Heat Roller

Fusing Entrance Guide
4127s025

(2)

Fusing Temperature Control Circuit

· The Thermistor detects the surface temperature of the Heat Roller and inputs that analog voltage into IC1. Corresponding to this data, the Heater Lamp ON/OFF signal is output from IC1A-55, causing the Heater Lamp to turn ON or OFF to control the fusing temperature. · When the Heater Lamp is not turned OFF even if the Thermistor detects a high temperature malfunction (if the surface temperature of the Heat Roller exceeds 230°C), the signal from IC1-79 changes from L to H to turn OFF the Heater Lamp forcibly.
PWB-P
PJ2 1 2
PJ7 1 2 3 4 5 6 7
78 CMPIN/AN8/P63

TH1 PU1
+24V GND GND GND +5V +5V FUSER_LAMP

1 2

1 2

DC5V
GND GND

H1

CN1 1 HEAT_N 2 N.C. 3 HEAT_L

CN2 1 2 3 4 5
6 7

IC1

L

DT1

IC2

H

3 1 2

L L

79 CMPOUT 55 P01

TS1
DC5V
GND

L H1: ON H H1: OFF
4121s037

55

PagePro 1200 Series Mechanical / Electrical

At 600 dpi The printer is initialized upon power supply. The printer then starts warming up and the Heater Lamp turns on. The temperature is controlled as follows. Mode 1 The temperature is controlled to maintain 125°C (PagePro 1250E) or 115°C (PagePro 1200W) dur-

ing standby and 200°C during printing. If this mode continues for 300 seconds (PagePro 1250E) or 90 seconds (PagePro 1200W), the control will shift to mode 2. Mode 2 The temperature of the Heat Roller falls gradually to about 190°C from about 200°C. If this mode continues for 208 seconds, the control will shift to mode 3.

ing standby and 190°C during printing. Unless an error occurs or the control is opened, this mode is maintained.

Mode 3 The temperature is controlled to maintain 125°C (PagePro 1250E) or 115°C (PagePro 1200W) dur-

At 1200 dpi When the printer completes the initialization sequence after it has been turned ON, it starts warming up and the Heater Lamp turns ON. The Heater Lamp remains ON until the temperature of the Heat Roller becomes about 160°C, providing the following temperature control. Mode 1 The temperature is controlled to maintain about 160°C during printing and about 125°C (PagePro

1250E) or 115°C (PagePro 1200W) during standby. This mode lasts 300 seconds (PagePro 1250E) or 90 seconds (PagePro 1200W) seconds before the control shifts to mode 2. Mode 2 This mode lasts for 208 seconds before the control shifts to mode 3. The temperature of the Heat Roller gradually falls from about 160°C to about 155°C. Mode 3 The temperature is controlled to maintain at about 155°C during printing and at about 125°C

(PagePro 1250E) or 115°C (PagePro 1200W) during standby. This mode is maintained unless an error occurs or the Top Cover is opened.

56

PagePro 1200 Series Mechanical / Electrical

Warming-up

Thermistor detecting temperature

200°C 190°C Printing (600 dpi)

Temperature (°C)

160°C 155°C Printing (1200 dpi)

125°C

Standby

Mode 1: 1250E: 300sec 1200W: 90sec

Mode 2: 208sec

Mode 3

Temperature immediately after temperature control starts The state before discontinuation of temperature control Mode 1, warming-up Mode 2, 3 or Power OFF Mode 1 50°C or more, less than 125°C less than 50°C

1250E) or 115°C (PagePro 1250E) or 115°C (PagePro 1200W) (PagePro 1200W)
or more Mode 1 Mode 2 Mode 3

125°C (PagePro

57

PagePro 1200 Series Mechanical / Electrical

4-8.
(1)

Paper Exit
Face-up/Face-down Selection Mechanism

After fusing, the paper is ejected onto the Face-down Tray or the Face-up Tray by the Face-up/Facedown Selection Mechanism. An optional Face-up Tray can also be selected. Switching the paper exit to use the Face-up Tray is done with the Face-up/Face-down Selection Switch.
Face-up/Face-down Selection Switch Face-up Output

Face-down Output

Face-up Exit Roller

Paper Exit Guide Face-down Exit Roller

4127s027

Face-down output It is ejected to the Face-down Tray at the top of the printer. Face-up output It is ejected onto the optional Face-up Tray. Even when there is no Face-up Tray, face-up output is possible.

Tray Capacity (Ordinary Plain Paper) Face-down Tray Face-up Tray Max. 100 sheets Max. 20 sheets

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PagePro 1200 Series Maintenance / Disassembly

5.
5-1.
(1)

Precautions for Maintenance/Disassembly
Precautions for Disassembly
Observe the following precautions whenever servici