Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
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Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current..................... •...
2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
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• Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself....................... • Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a cable cover or other appropriate item.
2FP/2FY2FR 1-5-5 Mechanical problems ........................... 1-5-24 (1) No primary paper feed........................1-5-24 (2) No secondary paper feed........................ 1-5-24 (3) Skewed paper feed......................... 1-5-24 (4) Multiple sheets of paper are fed at one time..................1-5-24 (5) Paper jams............................. 1-5-24 (6) Abnormal noise is heard.
2FP/2FY/2FR 1-1-2 Name of parts (1) Overall Rating labels European countries U.S.A/Canada FS-1920 model 21 24 FS-3820N/3830N models Figure 1-1-1 1. Top cover 14. Memory card slot 2. Toner container 15. Paper transfer unit 3. Operator panel 16. Paper transfer unit release lever 4.
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2FP/2FY/2FR (2) Operator panel Message display 15 14 13 Figure 1-1-2 1. Ready indicator 2. Data indicator 3. Attention indicator 4. GO key 5. CANCEL key 6. MENU key ? key 11. ENTER key 12. TYPE indicator 13. SIZE indicator 14.
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2FP/2FY/2FR 1-1-3 Machine cross section 1. Cassette 2. Paper feed unit 3. MP tray 4. MP tray paper feed unit 5. Process unit 6. Toner container 7. Transfer section 8. Fuser unit 9. Face-down output tray Optional 10. Laser scaner unit (LSU) sorter 11.
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2FP/2FY/2FR 1-2-1 Drum Note the following when handling or storing the drum. • When removing the process unit, never expose the drum surface to strong direct light. • Keep the drum at an ambient temperature between 10°C/50°F and 32.5°C/90.5°F and at a relative humidity not higher than 80% RH.
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2FP/2FY/2FR 1-3-1 Unpacking and installation (1) Installation procedure Start Unpacking. Installing the toner container. Installing the waste toner box. Loading paper. Installing the dust cover. Connect the printer cable and power cord. Initializing the printer and make test page. Completion of the machine installation. 1-3-1...
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2FP/2FY/2FR Unpack. [For U.S.A model only] Figure 1-3-1 Unpacking 1. Printer 2. Waste toner box 3. Toner container 4. Power cord 5. CD-ROMs 6. Installation guide and other printed matter 7. Plastic bag for developer 8. Dust cover [For U.S.A model only] 1-3-2...
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2FP/2FY/2FR Installing the toner container. 1. With the label side down, thoroughly shake the toner container (in the direction of the arrow) ten times or more to loosen and mix the toner inside. Toner container Figure 1-3-2 2. Carefully remove the protective seal. Protective seal Figure 1-3-3 3.
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2FP/2FY/2FR Top cover 5. Push firmly on the top of the toner container at Toner container the positions marked PUSH HERE. 6. Close the top cover. Figure 1-3-5 Install the waste toner box. 1. Open the cap of the waste toner box. Waste toner box Figure 1-3-6 Left cover...
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2FP/2FY/2FR Load paper. 1. Pull the cassette out of the printer. 2. Set the paper in the cassette. Figure 1-3-8 Installing the dust cover. 1. If you have installed a paper cassette that can hold the legal size paper, install the dust cover at the back of the printer (The legal size cassette and the dust cover are supplied for U.S.A.
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2FP/2FY/2FR Connect the printer cable and power cord. 1. Connect the printer cable (parallel, USB or network* interface). *: For FS-3820N/3830N models only. *: FS-3820N/3830N models only Network* Network Parallel (ether) cable USB cable Paprallel cable Figure 1-3-10 2. Connect the power cord to AC inlet. Power cord AC inlet Figure 1-3-11...
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2FP/2FY/2FR Initializing the printer and make test print. 1. Turn on the printer's power switch. The message display should indicate [Self test]. When the printer is first switched on after installation, there will be a delay of approximately 8 minutes before the printer gets ready to print as the developer needs to be filled with toner.
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There are two DIMM sockets are provided on the FS- 3830N model, and one DIMM socket on the FS-1920/ 3820N models for expanding the printer's memory. (The extra 32 MB of DIMM memory that come standard with the FS-3830N model is installed in one of the expanding DIMM sockets.)
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2FP/2FY/2FR 2. Open the clips on both ends of the DIMM socket. 3. Insert the DIMM into the DIMM socket so that the notches on the DIMM align with the corresponding protrusions in the slot. 4. Close the clips on the DIMM slot to secure the DIMM.
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2FP/2FY/2FR 1-3-3 Installing the optional memory card (CompactFlash) The main board of the printer is equipped with one slot for memory card. CAUTION Take precautions that no foreign substances such as metal chips or liquid get inside the printer during the installation process.
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(See page 1-3-8) 2. Install the harddisk (Microdrive) into its socket on the main board. Harddisk socket Harddisk (Microdrive) Main board FS-1920 model Main board Harddisk socket FS-3820N/3830N models Harddisk (Microdrive) Figure 1-3-15 Installing the harddisk (Microdrive)
2FP/2FY/2FR 1-3-5 Installing the optional network interface card The main board of the printer is equipped with a network interface card slot (KUIO-LV type, 3.3 V). If the serial interface board kit is installed, remove it to use the network interface card. CAUTION Take precautions that no foreign substances such as metal chips or liquid get inside the printer during the...
2FP/2FY/2FR-4 1-4-1 Service mode The printer is equipped with the service mode that can be accessed in the menu system. The service mode is intended for use by the service person for maintenance and service for the items explained in the following sections. (1) Executing service mode Message display Ready...
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2FP/2FY/2FR-6 Service items Description Printing a status page for service purpose >>Print Description Status Page Service information on the status page include various settings for the printer, service statistics, etc. Purpose To understand the machine environments and general settings. Method 1.
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2FP/2FY/2FR-6 Service items Description Detail of service information Service information [0104/A103] [C1] [22.00AFUB] [03/03] Total page 9690 /t/P00/S00/U00/F00/N00/D10:DM0301.DAN /0020/0020/1061/0811/ /AAAAAA/AAAAAA/ /AAAAAA/ /AAAAAA/AAAAAA/ /AAAAAA/ /AAAAAA/ /003D/0005/0005/0005/0005/0005/0005/0005/0000/ /AAAAAA/ /RS2/FF/00/[0003-0003]/AI.E/81/31/50/0 25 26 27* 30 31 32 33* 00.00.00.00.00.00 /03030303/03030303/03030303/03000000/00000000/03030303/03030303/ SPD1:0203040508090A0B0C0D0F101112131415161718191A1B1C1D1E1F202122235E SPD2:0203040508090A0B0C0D0F101112131415161718191A1B1C1D1E1F202122235E 37* /8088808880808000/8088808880808000/8088808880808000/8088808880808000/ /8088808880808000/8088808880808000/8088808880808000/8088808880808000/ /8088808880808000/8088808880808000/8088808880808000/8088808880808000/ /8088808880808000/8088808880808000/8088808880808000/8088808880808000/...
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(Hexadecimal) Bit 7: always 0 (MSB) Bit 6: 0 Non MICR mode Bit 5: 0: For Europe 1: For U.S. Bit 4: 0: Kyocera 1: OEM Bit 3: always 0 Bit 2: always 0 Bit 1: 0: Overseas 1: Domestic (Japan)
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2FP/2FY/2FR-6 Service items Description Item Description EEPROM error of each unit Bit 0: Ppaer feeder 1 (Hexadecimal) Bit 1: Paper feeder 2 Bit 2: Paper feeder 3 Bit 3: Duplexer Bit 4: Sorter Bit 5: Bulk paper feeder Bit 6: (Reserved) Bit 7: Drum Drum ID Serial interface information...
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2FP/2FY/2FR-5 Service items Description Printing an event log (EVENT LOG) >>Print Description Event Log Prints the history of paper misfeeds and self-diagnostic errors including up to 16 items from the latest occurrence of such an error. (If the number of errors exceeds 16, errors will be deleted sequentially from the oldest one.) Purpose To allow machine malfunction analysis based on the frequency of paper misfeeds and self...
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2FP/2FY/2FR-6 Service items Description Table 1-4-2 Code table 1 Code digit and Details of code description Identification 02: (fixed) code Error type 11: Paper misfeed (hexadecimal) Paper misfeed 31: Cassette 1 (in the printer) locations 32: Cassette 2 (hexadecimal) 33: Cassette 3 34: Cassette 4 41: Envelope feeder 42: MP tray...
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2FP/2FY/2FR-6 Service items Description Table 1-4-2 Code table 1 Code digit and Details of code description Paper size 01: Monarch 0A: A3 13: Custom size 27: 8K (hexadecimal) 02: Business 0B: B4 1E: C4 28: 16K 03: International DL 0C: Ledger 1F: Postcard 32: Statement 04: International C5...
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The "Install MK" message means that maintenance kit (MK-67/MK-68) should be replaced at 300,000 pages of printing. The interval counter must be manually reset using this service item. Maintenance kit includes the following units: MK-67 MK-68 Quantity Items (For FS-1920/3820N) (For FS-3830N) Developer unit DV-67 DV-67 Drum unit DK-67...
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2FP/2FY/2FR Service items Description Initializing the developer unit (toner install mode) >>Developer Description The new developer unit is shipped from the factory with no toner contained. The developer can be automatically replete with toner when a toner container is installed onto it and the printer is turned on.
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2FP/2FY/2FR Service items Description Automatic drum surface refreshing >>DRUM-CTRL Description The drum surface refreshing operation is normally performed when the power is turned on to the printer or during warm-up when the printer is recovering from the Sleep mode, but even then only at those times that the temperature/humidity sensor detects the drum surface to be in a state of dew condensation.
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2FP/2FY/2FR 1-4-2 Maintenance (1) Cleaning the paper transfer unit To avoid print quality problems due to paper dust and debris, clean the paper transfer unit in the following manner. Pull the paper transfer unit release lever up and draw the paper transfer unit all the way out until it stops. Wipe the paper dust on the upper registration roller and the paper ramp using the wiper cloth included in the toner kit.
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2FP/2FY/2FR (2) Replacing the developer To remove the developer unit from the printer for shipment or replacing to a new one, it should be handled following the instructions below. After the replacement, new developer needs to be initialized. See page 1-4-10. Shipping the developer The printer is supplied with a plastic bag that should be retained for future shipment of the developer.
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2FP/2FY/2FR 1-5-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the printer immediately stops printing and displays the paper misfeed message on the operator panel. To remove paper misfeed in the printer, pull out the paper cassette or rear cover, paper transfer unit. Paper jam Paper misfeed message MP tray...
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The printer does not operate when a message beginning with “Call service ####” or “Call service person F0##” is displayed. The messages are categorized as follows: Call service Error code 2000:0123456 Figure 1-5-3 (2) Self diagnostic codes : For FS-1920, * : For FS-3820N, * : For FS-3830N models Remarks Code Contents Causes...
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2FP/2FY/2FR-2 Remarks Code Contents Causes Check procedures/corrective measures 0550 Non-supported duplexer is installed DU-60 is in- Replace duplexer DU-60 for DU-61. ·Non-supported duplexer DU-60 is stalled. installed Paper feeder PF-60 [top] with wrong Wrong firmware Change the main board with the one hav- 0560 firmware version is installed version is used...
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(replace at the same Print status page. or harness time) (S02401* /S03026* between engine relay : FS-1920 model Does pin board (KP-1071) and : FS-3820N model #18 (MMOTRDY*) main motor. : FS-3830N model of YC7 on engine board...
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 2600 Optional bulk paper feeder PF-8E Defective harness Replace engine board (KP-1081). See motor error (S03022) between page 1-6-20. • Motor error in the optional bulk paper engine board and feeder PF-8E. optional unit inter- face connector.
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 4000 Laser scanner unit (Polygon motor) Defective gate Follow the flow chart below. error array U7 on the • POLRDY* does not go low within 20 engine board. seconds after POLON* goes low (When Defective poly- starting) or within 16 seconds after gon motor.
2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 5300 Eraser lamp error Blown-out eraser Follow the flow chart below. • The ERADEAD* signal (delivered from lamp [board KP- the eraser lamp blown-out detection 1067]. circuit on the engine board) goes low Defective CPU U1 continuously more than 1 second, while on the engine...
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 6000 Fuser unit error Blown-out ther- Follow the flow chart below. • HTEMP* remains high for longer than 4 mistor. seconds since the heater lamp is on. The Blown-out heater heater lamp continues to be turn on for lamp.
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 6020 Abnormal high temperature error Defective CPU U1 Follow the flow chart below. • HTEMP* remains high for longer than 4 or comparator U9 seconds since the heater lamp is on. The on the engine heater lamp continues to be turn on for board.
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2FP/2FY/2FR-2 Remarks Code Contents Causes Check procedures/corrective measures 6030 Thermistor error Defective ther- Follow the flow chart below. · The thermistor error signal was detected mistor. when the heater lamp was turned on. Defective har- ness (S02678). Defective power supply unit. Defective engine board (KP-1081).
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 6400 Zero cross signal error Defective power Replace power supply unit. See page 1-6- • The ZCROSS signal does not reach supply unit. the engine board within 3 seconds Defective CPU U1 Replace engine board.
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2FP/2FY/2FR-2 Remarks Code Contents Causes Check procedures/corrective measures 7350 Toner refreshing mode error Defective high Replace high voltage unit. See page 1-6- • Toner refreshing mode error. voltage unit. Defective toner See page 1-4-10. refreshing. 7400 The developer unit is not installed or The developer unit Install the developer unit.
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2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures F020 Main or expanded memory error Defective system Defective system main memory (RAM) on • Checksum failed with main memory main memory the main board (KP-1053* /1033* (RAM) on the main board or (RAM) on the expanded memory (DIMM).
2FP/2FY/2FR 1-5-3 Image formation problems (1) Completely blank print- (2) All-black printout. (3) Dropouts. (4) Black dots. out. See page 1-1-6-17 See page 1-1-6-17 See page 1-5-16 See page 1-5-16 (8) Gray background. (5) Black horizontal (7) Unsharpness. (6) Black vertical streaks. streaks.
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4. Defective main board Defective laser scanner unit control circuit in the main board (KP- 1053* /1033* ). See page 1-6-22. : For FS-1920, * : For FS-3820N, * : For FS-3830N models (2) No image appears Causes (entirely black).
2FP/2FY/2FR (3) Dropouts. Causes 1. Defective developing roller (in the developer) 2. Defective drum unit 3. Defective fuser unit 4. Defective paper specifications 5. Defective transfer roller installation 6. Defective high voltage unit (transfer bias potential) Causes Check procedures/corrective measures If the defects occur at regular intervals of 39 mm, the problem may 1.
2FP/2FY/2FR (5) Black horizontal Causes streaks. 1. Defective drum unit's ground 2. Defective drum unit Causes Check procedures/corrective measures 1. Defective drum unit's ground The drum axle in the drum unit and its counter part, the grounding tab in the printer, must be in a good contact. If necessary, apply a small amount of electro-conductive grease onto the tab.
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2FP/2FY/2FR (7) Unsharpness. Causes 1. Defective paper specifications 2. Defective transfer roller installation 3. Defective transfer bias potential 4. EcoPrint setting Causes Check procedures/corrective measures 1. Defective paper specifications Paper with rugged surface or dump tends to cause unsharp printing. Replace paper with the one that satisfies the paper specifications.
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2FP/2FY/2FR-2 (9) Dirt on the top edge Causes or back of the paper. 1. Toner contamination in various parts 2. Defective transfer roller Causes Check procedures/corrective measures Dirty edges and back of the paper can be caused by toner 1. Toner contamination in various parts accumulated on such parts as the paper chute, paper transportation paths, the bottom of the drum and developer, and the fuser unit inlet.
2FP/2FY/2FR-2 1-5-4 Electrical problems Problem Causes Check procedures/corrective measures (1) Defective waste Defective waste toner full Replace drum unit. See page 1-6-10. toner box detecting. sensor [board] (KP-1065) • Although new or waste toner sensor (re- waste toner box is ceiver).
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No electricity at the power Measure the AC power voltage at the outlet. outlet. Defective power supply Replace the power supply unit. See page 1-6-20. unit. : For FS-1920, * : For FS-3820N, * : For FS-3830N models 1-5-22...
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2FP/2FY/2FR Problem Causes Check procedures/corrective measures (7) Defective face Improper insertion of the Reinsert the connector. up/down solenoid face up/down solenoid operating. connector into fuser board • Change guide (KP-1069). does not operate Broken face up/down sole- Remove and then check for continuity across the face up/down in the fuser unit.
2FP/2FY/2FR 1-5-5 Mechanical problems Problem Causes/check procedures Corrective measures Check if the surfaces of the following rollers Clean with isopropyl alcohol. No primary paper feed. are dirty with paper powder: pickup roller, feed roller, and MP tray feed roller. Check if the pickup roller, feed roller, and Check visually and replace any deformed rollers (see page 1-6-11 and 1-6-14).
2FP/2FY/2FR 1-6-1 Precautions for assembly and disassembly (1) Precautions • Be sure to turn the power switch off and disconnect the power plug before starting disassembly. • When handling PWBs (printed wiring boards), do not touch parts with bare hands. The PWBs are susceptible to static charge.
2FP/2FY/2FR 1-6-2 Removing the developer (1) Removing the developer CAUTIONS When if installing or removing the developer, do not let the magnet roller touch any part in the printer. 1. Open the top cover. 2. Remove the toner container. 3. Disconnect the developer connector. 4.
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2FP/2FY/2FR 5. Gently flip down the magnet roller protective cover. Magnet roller protective cover Magnet roller Figure 1-6-2 Closing the magnet roller protective cover NOTE After removing the developer, seal it in the protective bag and place it on a flat surface. Do not place the developer in a dusty area.
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2FP/2FY/2FR 1-6-3 Removing the paper transfer unit 1. Draw the paper transfer unit while pressing the buttons in the direction of arrow (A). Paper transfer unit Figure 1-6-3 Removing the paper transfer unit 1-6-4...
2FP/2FY/2FR 1-6-4 Removing the main charger unit 1. Pull the main charger unit upwards while pushing main charger release lever. Then, pull the main charger unit frontwards. Main charger release lever Main charger unit Figure 1-6-4 Removing the main charger unit 1-6-5...
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2FP/2FY/2FR 1-6-5 Removing the operator panel and outer covers (1) Removing the operator panel 1. Open the top cover and MP tray. 2. Unlatch two hooks. 3. Pull the operator panel towards the front. Top cover Hooks Operator panel MP tray Figure 1-6-5 Removing the operator panel 1-6-6...
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2FP/2FY/2FR (2) Removing the top cover/face-down output tray 1. Open the top cover. 2. Remove two screws. 3. Remove the top cover/face-down output tray while pressing it the direction arrows (A) [backwards]. Screw Top cover Screw Top cover/face-down output tray Figure 1-6-6 Removing the top cover/face-down output tray 1-6-7...
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2FP/2FY/2FR (3) Removing the right cover 1. Remove the operator panel. See page 1-6-6. 2. Unlatch the four snaps (A) and three hooks (B) on the chassis. Remove the right cover. Right cover Figure 1-6-7 Removing the right cover 1-6-8...
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2FP/2FY/2FR (4) Removing the left cover 1. Unlatch the four snaps (A) and three hooks (B) on the chassis. Remove the left cover. Left cover Figure 1-6-8 Removing the left cover 1-6-9...
2FP/2FY/2FR 1-6-6 Removing the drum unit 1. Remove the paper cassette and the paper transfer unit. See page 1-6-4. 2. Remove the developer unit. See page 1-6-2. 3. Remove the waste toner bottle. 4. Remove the drum unit while pressing the drum lock.
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2FP/2FY/2FR 1-6-7 Removing the pickup roller and feed roller 1. Remove the paper transfer unit. See page 1-6- 2. Turn the paper transfer unit over. 3. Detach the release holder by sliding it while pressing the projections. 4. Remove the feed roller assembly while pressing it in the direction of arrow (A).
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2FP/2FY/2FR 5. Remove the feed bracket cover while unlatching three snaps. 6. Remove the pickup roller and the feed roller. Pickup gear Z32S Snap Pickup roller One way clutch Snap Feed bracket cover Snap Feed roller Figure 1-6-11 Remove the pickup roller and feed roller CAUTIONS Pickup gear Z32S is installed of the inside the one way clutch.
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2FP/2FY/2FR-4 1-6-8 Removing the MP tray paper feed unit, MP tray feed roller and retard holder (roller) (1) Removing the MP tray paper feed unit 1. Remove the paper transfer unit. See page 1-6-4. 2. Remove the developer. See page 1-6-2. 3.
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2FP/2FY/2FR-4 (2) Removing the MP tray feed roller 1. Remove the paper transfer unit. See page 1-6-4. 2. Pull the lever and slide the paper MP feed roller holder. 3. Remove the MP tray feed roller. Lever MP feed roller MP feed roller holder holder...
2FP/2FY/2FR 1-6-9 Removing the transfer roller CAUTIONS Do not touch the transfer roller (sponge) surface. Oil and dust (particles of paper, etc.) on the transfer roller can significantly deteriorate the print quality (white spots, etc.). 1. Draw the paper transfer unit from the printer. 2.
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2FP/2FY/2FR 1-6-10 Removing the controller unit and the principal circuit boards (1) Removing and opening the controller unit 1. Remove the top cover/face-down output tray. See page 1-6-7. 2. Remove the right and left covers. See page 1- 6-8 and 1-6-9. 3.
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2FP/2FY/2FR 4. Remove the two connectors from the controller unit right side. Receptacle Controller unit Connectors Connector Figure 1-6-16 Removing the connectors from controller unit right side 1-6-17...
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2FP/2FY/2FR 5. Remove three screws. 6. Remove frame unit while releasing the projections from the catches on the frame unit. Frame unit Screw Screw Screw Figure 1-6-17 Removing the controller unit form the frame unit 1-6-18...
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2FP/2FY/2FR 7. Remove two screws. 8. Remove the main board. 9. Remove four screws. 10. Remove the grounding terminal and controller unit lid from the controller unit. Screw Screw Controller unit lid Screw Grounding terminal Screw Screw Main board Controller unit Screw Figure 1-6-18 Opening the controller unit 1-6-19...
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2FP/2FY/2FR (2) Removing the engine board and power supply unit 1. Remove and open the controller unit. See pages 1-6-19. 2. Remove the connectors YC3 and YC6 from the engine board. 3. Remove the connector YC10 from the engine board. (For FS-3820N/3830N models only) 4.
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2FP/2FY/2FR 6. Remove the power switch rod. 7. Remove one screw, grounding wire terminal, and lock washer. 8. Remove three screws. 9. Remove the power supply unit from the power supply unit cover. Screw Grounding wire terminal Lock washer Screws Power supply unit Power switch rod Power supply unit cover...
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2FP/2FY/2FR (3) Removing the main board CAUTIONS Before removing the main board, the memory card must be removed first. However, do not remove the memory card while power is on. If the memory card is removed (or inserted) while the printer is on, damage could result in the printer’s electronics as well as the memory card.
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2FP/2FY/2FR (4) Removing the high voltage unit 1. Remove the top cover and left covers. See pages 1-6-7 and 1-6-9. 2. Remove the high voltage unit while unlatching two latches. 3. Remove two connectors from the high voltage unit. Connector High voltage unit Latch Latch...
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2FP/2FY/2FR-2 (5) Removing the sensor board CAUTIONS Draw the connector straight to remove. If you draw the connector while it is slanted, the receptacle may be damaged. 1. Remove the drum unit. See page 1-6-10. 2. Remove the high voltage unit. See previous page.
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2FP/2FY/2FR-2 1-6-11 Removing the drive unit and main motor CAUTIONS Draw the connector straight to remove. If you draw the connector while it is slanted, the receptacle may be damaged. 1. Remove the paper cassette and the paper transfer unit. See page 1-6-4. 2.
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2FP/2FY/2FR 8. Remove four screws. 9. Remove the main motor from the drive unit. Drive unit Screws Screws Main motor Figure 1-6-25 Removing the main motor 1-6-26...
2FP/2FY/2FR 1-6-12 Removing and splitting the fuser unit WARNING The fuser unit is hot after the printer was running. Wait until it cools down. 1. Remove three connectors and one tab. 2. Remove two screws. 3. Remove the fuser unit from the frame unit. Screw Fuser unit Connectors...
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2FP/2FY/2FR 4. Remove the rear cover and the spring. 5. Remove the solenoid actuator. 6. Remove the change guide. 7. Remove one connector. Spring Rear cover Change guide Connector Solenoid actuator Figure 1-6-27 Removing the rear cover and change guide 1-6-28...
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2FP/2FY/2FR 8. Remove two screws. 9. Split the fuser unit. Screw Fuser unit Screw Figure 1-6-28 Splitting the fuser unit 1-6-29...
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2FP/2FY/2FR (1) Removing the separators WARNING The separators are extremely hot immediately after the printer was running. Allow substantial period of time until it cools down. 1. Remove and split the fuser unit. See page 1-6- 2. Remove the upper exit guide while unlatching three latches.
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2FP/2FY/2FR (2) Removing the heater lamp WARNING The heater lamp is extremely hot immediately after the printer was running. Allow substantial period of time until it cools down. CAUTIONS The heater lamps are fragile. Use extreme care when handling not to drop or break. Do not directly touch on the heater lamp.
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2FP/2FY/2FR (3) Removing the heat roller WARNING The heat roller is extremely hot immediately after the printer was running. Allow a substantial period of time until it cools down. 1. Remove and split the fuser unit. See page 1-6- 2. Remove the heater lamp. See the previous page.
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2FP/2FY/2FR (4) Removing the thermistor and the thermal cutout 1. Remove and split the fuser unit. See page 1-6- 2. Remove the heater lamp. See page 1-6-31. 3. Remove the heat roller. See previous page. 4. Remove one screw. 5. Remove the thermistor. 6.
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2FP/2FY/2FR (5) Removing the press roller WARNING The press roller is extremely hot immediately after the printer was running. Allow substantial period of time until it cools down. 1. Remove and split the fuser unit. See page 1-6- 2. Remove the press roller from the fuser unit. Press roller Fuser unit Figure 1-6-33 Removing the press roller...
2FP/2FY/2FR 1-6-13 Removing the laser scanner unit 1. Remove the top cover/face-down output tray. See pages 1-6-7. 2. Remove two connectors. 3. Remove four screws. 4. Remove the laser scanner unit from the frame unit. Screws Screws Laser scanner unit Order of fixing the laser scanner unit Connectors CAUTIONS...
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2FP/2FY/2FR-4 1-6-14 Replacing the ozone filter B and ozone filter (1) Replacing the ozone filter B and ozone filter Ozone filter B 1. Remove the top cover/face-down output tray. See page 1-6-7. 2. Remove the right cover. See page 1-6-8. 3.
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DIMM [board] can not be overwritten. Check the type of the system DIMM [board] currently used on the main board by service status page (See page1-4-2). System DIMM [board KP-1059] Main board [KP-1053] FS-1920 model System DIMM [board KP-893] Main board FS-3820N model [KP-1033]...
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2FP/2FY/2FR (1) Firmware program data format Kyocera mita supplies the following types of data for updating firmware of the different purposes: System firmware Engine firmware Operator panel message data The data to be downloaded are supplied in the following format: System firmware file name example SB20K8400.bcmp...
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2FP/2FY/2FR (2) Downloading the firmware from the parallel interface This section explains how to download firmware data from the parallel interface. The printer system can automatically recognize whether the data to be overwritten is for the engine firmware, the controller firmware or operator panel message data.
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2FP/2FY/2FR 4. Supervisor mode. The parallel interface is waiting for the firmware data. 5. Receiving the firmware data. 6. The system DIMM or flash ROM is overwritten with the new firmware data. 7. Firmware downloading is finished. (When more than one data are down loaded, the data display can be changed by pressing any key.) 8.
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2FP/2FY/2FR (3) Downloading the firmware from the memory card To download data written in a memory card (CompactFlash) to the printer, proceed as explained in this section. CAUTION Downloading firmware takes several minutes. Do not turn power off during downloading. If downloading is interrupted by an accidental power failure, etc., the system DIMM may have to be replaced.
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2FP/2FY/2FR 5. Data are transferred to the RAM on the main board. 6. The system DIMM or Flash ROM is overwritten with the new firmware data. 7. Firmware download is finished. (When more than one data are down loaded, the data display can be changed by pressing any key.
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2FP/2FY/2FR (4) Downloading errors The following messages are indicated on the message display when an error occurred during downloading the firmware data. Error message Description Corrective action Deficit of the file header Obtain the correct firmware. download header Deficit of the data header error [##] File checksum error ##: Error code 20 to 26.
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2FP/2FY/2FR 2-1-1 Paper feeding system The paper feeding system picks up paper from the paper cassette, MP tray, or if installed, the paper feeder PF-60, feeds it in the printer and delivers in the output tray. Paper is feed at the precise timing in synchronization with data processing. The paper feeding system finally delivers the printed page to either the face-down or face-up output tray as manipulated by the user.
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2FP/2FY/2FR (2) Paper feed control The following diagram shows interconnectivity of the feeding system components including the sensors and rollers. The engine board issues various signals in synchronization with the electrophotographic process that is executed by the main board. Toner container Laser scanner unit...
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2FP/2FY/2FR (3) Paper feeding mechanism Drive and paper transfer unit Drive unit Power train To fuser unit Paper transfer unit Figure 2-1-3 Drive and paper transfer unit 1. Main motor 2. Registration clutch 3. Feed clutch 4. Pickup roller 5. Feed roller 6.
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2FP/2FY/2FR MP tray paper feed unit Drive unit Power train MP tray paper feed unit To paper transfer unit MP tray Figure 2-1-4 MP tray paper feed unit 9. Middle feed clutch 10. MP tray feed solenoid 11. MP tray feed roller 12.
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2FP/2FY/2FR Fuser unit and face up/down output FD gear bracket To face-down output tray To face-up Power train output tray or option device Paper from paper transfer unit Drive unit Fuser unit Figure 2-1-5 Fuser unit and face up/down output 13.
2FP/2FY/2FR 2-1-2 Electrophotographic cycle The electrophotographic system of the printer performs a cyclic action made of six steps as follows. Each step is technically explained in the following sections. Drum unit Laser scanner unit Main charging Exposure Drum Cleaning Developer Developing Transfer Fusing...
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2FP/2FY/2FR (1) Main charging Components of drum and main charger unit Drum unit Main charger unit Figure 2-1-7 Components of drum and main charger unit 1. Eraser lamp [board] (KP-1067) 2. Zener board (KP-1073) 3. Drum board (KP-1064) 4. Waste toner full sensor [board] (KP-1065) 5.
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2FP/2FY/2FR Amorphus-silicon drum The printer use the long lasting amorphous silicon drum. The drum surface is a composite of five substances coated in five layers as shown below. Drum 1. Aluminum base 2. Carrier block (1 to 3 mm thick) 3.
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2FP/2FY/2FR Charging the drum The following shows a simplified diagram of the electrophotographic components in relation to the engine system. Charging the drum is done by the main charger wire. Main charging High voltage unit Engine board output MCHON* CN2-9 YC5-10 Main charger wire Zener...
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2FP/2FY/2FR (2) Exposure The charged surface of the drum is exposed to the laser beam scanning from the laser scanner unit. Diversion mirror Lens Lens Polygon motor Laser scanner unit Laser beam output Drum Figure 2-1-10 Exposure The polygon motor (with polygon mirrors) revolves (27,165 rpm) to reflect the laser beam over the drum. Lenses and diversion mirror are housed in the laser scanner unit.
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2FP/2FY/2FR-2 Laser scanner unit Polygon mirror Laser diode Laser beam Primary f-theta lens Secondary f-theta lens Laser scanner unit (LSU) Drum Figure 2-1-11 Laser scanner unit 1. Laser diode ..........Emits diffused, visible laser. 2. Collimator lens ..........Aligns the laser beam to the cylindrical lens. 3.
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2FP/2FY/2FR Drum surface potential The laser beam is continually switched on and off depending on the print data. It is on for a black (exposed) dot and off for a white (blank) dot. Since the drum surface is evenly charged, whenever it is illuminated by the laser beam, the electrical resistance of the photoconductor is reduced and the potential on the photoconductor is also lowered.
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2FP/2FY/2FR (3) Development Power train Toner container Developer Figure 2-1-13 Developer mechanism 1. Toner motor 2. Toner sensor 3. Developing roller 4. DLP A screw 5. DLP B screw 6. Blade 7. Magnet 2-1-13...
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2FP/2FY/2FR The latent image constituted on the drum is developed into a visible image. The developing roller contains a 4-pole (S-N- S-N) magnet core and an aluminum cylinder rotating around the magnet core. Toner attracts to the developing roller since it is powdery ink made of black resin bound to iron particles. The magnetic blade to which an auxiliary magnet piece is attached is positioned approximately 0.3 to 0.4 mm above the developing roller.
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2FP/2FY/2FR A toner sensor is provided within the developer. As the toner supply from the toner container dwindles and the toner level lowers in the reservoir, the sensor translates it into an electrical signal through its diaphragm, urging the toner motor to feed more toner.
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2FP/2FY/2FR (4) Transfer The image developed by toner on the drum is transferred onto the paper because of the electrical attraction between the toner itself and the transfer roller. The transfer roller is negatively-biased so that the positively-charged toner is attracted onto the paper while it is pinched by the drum and the transfer roller.
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2FP/2FY/2FR (5) Fusing The toner on the paper is molten by heat and pressed into the paper as it passes between the heat roller and the press roller in the fuser unit. Fusing control temperature AC power Engine Power Paper type Temperature off/on board...
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2FP/2FY/2FR Fuser unit mechanism To face-down output tray To face-up output tray or option devices Paper from paper transfer unit (transfer section) Figure 2-1-18 Fuser unit mechanism 1. Face up/down solenoid 2. Thermistor 3. Thermal cutout 4. Exit sensor 5. Fuser board (KP-1069) 6.
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2FP/2FY/2FR (6) Cleaning After the transferring process, the drum needs to be physically cleaned of toner which is residual after the development process. The cleaning blade is constantly pressed against the drum and scrapes the residual toner on the drum off to the cleaning roller.
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11. Power supply unit 28. Network interface card or serial interface card (Optional) 12. High voltage unit 13. Registration sensor (PH701) : For FS-1920 model 14. Paper gauge sensor 1 (PH702) : For FS-3820N/3830N models 15. Paper gauge sensor 2 (PH703) 16.
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2FP/2FY/2FR Figure 2-2-2 Main frame (2) 1. Main motor 2. Polygon motor 3. Cooling fan motor 4. Controller unit fan motor 5. Developer fan motor 6. CPU cooling fan motor* 7. Face up/down solenoid 8. MP feed solenoid 9. Middle feed clutch 10.
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2FP/2FY/2FR (2) Drum and developer Drum unit Developer Figure 2-2-3 Drum and developer 1. Drum board (KP-1064) 2. Waste toner full sensor [board] (KP-1065) 3. Waste toner full sensor (receiver) 4. Eraser lamp [board] (KP-1067) 5. Zener board (KP-1073) 6. Toner sensor 7.
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2FP/2FY/2FR 2-3-2 Engine board Engine board 5 V DC 24 V DC +24V3 +24V2 power saver/ power ERASE Eraser lamp CPU cooling saver circuit cooling control fan motor ERDEAD* 5VSAVE* circuit drive circuit motor* WTNLED OPRDY* ECOPOWER *: For Waste toner WTONFUL* FS-3820N Sensor...
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2FP/2FY/2FR Connector Pin No. Signal Voltage Description +24V3 24 V DC 24 V DC power supply Connected FDPFUL* 0/5 V DC Paper full sensor: On/Off to the FUDR 0/24 V DC Face- up/down solenoid (UP): On/Off power FDDR 0/24 V DC Face- up/down solenoid (DOWN): On/Off supply THERM...
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2FP/2FY/2FR-2 Connector Pin No. Signal Voltage Description TRVSEL1* 0/24 V DC Transfer charger output voltage setting 1 Connected TRVSEL2* 0/24 V DC Transfer charger output voltage setting 2 to the high +5V1 5 V DC 5 V DC power supply voltage unit TRVSEL3* 0/24 V DC...
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2FP/2FY/2FR-2 Connector Pin No. Signal Voltage Description +24V3 24 V DC 24 V DC power supply +3.3V1 3.3 V DC 3.3 V DC power supply Connected MPFSOL* 0/24 V DC MP feed solenoid: On/Off to the FPDATA 0/3.3V DC(pulse) LCD controller board data signal engine MIDDR* 0/24 V DC...
2FP/2FY/2FR Connector Pin No. Signal Voltage Description Ground Ground Connected Ground Ground to the main +5V1 5 V DC 5 V DC power supply board +5V1 5 V DC 5 V DC power supply +5V1 5 V DC 5 V DC power supply SIOUT 0/3.3 V DC (pulse) Serial communication signal...
2FP/2FY/2FR 2-3-3 Power supply unit The power supply unit provides the AC power input and DC power and outputs. The high voltage bias generator circuit is mounted on a separate board. A simplified schematic diagram is shown below. Interlock switches Power supply unit Power Current...
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2FP/2FY/2FR Connector Pin No. Signal Voltage Description LIVE 120 V AC AC power supply Connected 220 - 240 V AC to the AC Ground inlet NEUTRAL 120 V AC AC power supply 220 - 240 V AC LIVE 120 V AC Power supply for heater lamp Connected 220 - 240 V AC...