Kyocera FS-1920 Service Manual
Hide thumbs Also See for FS-1920:
Table of Contents

Advertisement

FS-1920
FS-3820N
FS-3830N
SERVICE
MANUAL
Published in June 2006
842FR116
2FRSM066
Rev.6

Advertisement

Table of Contents
loading

Summary of Contents for Kyocera FS-1920

  • Page 1: Service Manual

    FS-1920 FS-3820N FS-3830N SERVICE MANUAL Published in June 2006 842FR116 2FRSM066 Rev.6...
  • Page 2 Revision history Revision Date Replaced pages Remarks 8-Jan-2004 15-Jan-2004 1-4-9, 1-5-1, 1-5-5, 2-3-2, 2-3-3 Corrected: Product code 2FP/2FR 28-Jan-2004 Revised all Combined: FS-3820N model (2FY) 14-Feb-2004 2-4-1 to 2-4-14 19-Mar-2004 1-1-5 28-May-2004 1-1-1, 1-1-3, 1-1-5, 1-4-1, 1-5-2, 1-5-3, 1-5-11, 1-5-13, 1-5-20, 1-5-21, 1-6-24, 1-6-25, 2-1-11, 2-3-5, 2-3-6 7 January 2005 1-1-2, 1-1-4, 1-1-5, 1-1-6...
  • Page 3: Safety Precautions

    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.
  • Page 4 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.
  • Page 5: Installation Precautions

    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..................... •...
  • Page 6: Precautions For Maintenance

    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.
  • Page 7 • 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.
  • Page 8 This page is intentionally left blank.
  • Page 9: Specifications

    2FP/2FY/2FR CONTENTS 1-1 Specifications 1-1-1 Specifications ............................1-1-1 1-1-2 Name of parts ............................1-1-7 (1) Overall ............................1-1-7 (2) Operator panel ..........................1-1-8 1-1-3 Machine cross section .......................... 1-1-9 1-2 Handling Precautions 1-2-1 Drum ..............................1-2-1 1-2-2 Installation environment ........................1-2-1 1-3 Installation 1-3-1 Unpacking and installation ........................
  • Page 10: Assembly And Disassembly

    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.
  • Page 11: Electrical Parts Layout

    Timing chart No. 6 MP tray feeding, A4 size paper [For FS-1920/3820N models] ........2-4-6 Timing chart No. 7 Optional paper feeder feeding, A4 size paper [For FS-1920/3820N models] ....2-4-7 Timing chart No. 8 Paper cassette feeding, A4 size paper [For FS-3830N model] ........2-4-8 Timing chart No.
  • Page 12 2FP/2FY2FR This page is intentionally left blank. This page is intentionally left blank.
  • Page 13 Standard memory ......32 MB, expandable up to 288 MB Additional memory ......1 slot (16/32/64/128/256 MB DIMM) Resolution ........Fast 1200 mode 600 × 600 dpi, with KIR (Kyocera Image Refinement) 300 × 300 dpi, with KIR (Kyocera Image Refinement) Photoconductor ......a-Si (drum diameter 30 mm) Charging system ......
  • Page 14 2FP/2FY/2FR-3 Controller software ......a) Emulation PCL6 (PCL5e+PCLXL) KPDL3 (PostScript 3 compatible) b) Fonts: Bitmap font: 1 Line Printer bitmap font Outline fonts: 35 PCL6 (PCL5e/PCL-XL) fonts 45 KPDL2 fonts: c) Graphic: (1) Raster graphic: 75, 100, 150, 200*, 300, 600* dpi (*200 dpi is supported when the resolution is 600 dpi.) (2) Vector graphic: Line, Box, Circle, Arc, Fill pattern etc.
  • Page 15 Standard memory ......64 MB, expandable up to 320 MB Additional memory ......1 slot (16/32/64/128/256 MB DIMM) Resolution ........Fast 1200 mode 600 × 600 dpi, with KIR (Kyocera Image Refinement) 300 × 300 dpi, with KIR (Kyocera Image Refinement) Photoconductor ......a-Si (drum diameter 30 mm) Charging system ......
  • Page 16 2FP/2FY/2FR-3 Controller software ......a) Emulation PCL6 (PCL5e+PCLXL) KPDL3 (PostScript 3 compatible) b) Fonts: Bitmap font: 1 Line Printer bitmap font Outline fonts: 35 PCL6 (PCL5e/PCL-XL) fonts 45 KPDL2 fonts: c) Graphic: (1) Raster graphic: 75, 100, 150, 200*, 300, 600* dpi (*200 dpi is supported when the resolution is 600 dpi.) (2) Vector graphic: Line, Box, Circle, Arc, Fill pattern etc.
  • Page 17 Standard memory ......96 MB, expandable up to 576 MB Additional memory ......2 slots (16/32/64/128/256 MB DIMM) Resolution ........Fast 1200 mode 600 × 600 dpi, with KIR (Kyocera Image Refinement) 300 × 300 dpi, with KIR (Kyocera Image Refinement) Photoconductor ......a-Si (drum diameter 30 mm) Charging system ......
  • Page 18 2FP/2FY/2FR-3 Controller software ......a) Emulation PCL6 (PCL5e+PCLXL) KPDL3 (PostScript 3 compatible) b) Fonts: Bitmap font: 1 Line Printer bitmap font Outline fonts: 35 PCL6 (PCL5e/PCL-XL) fonts 45 KPDL2 fonts: c) Graphic: (1) Raster graphic: 75, 100, 150, 200*, 300, 600* dpi (*200 dpi is supported when the resolution is 600 dpi.) (2) Vector graphic: Line, Box, Circle, Arc, Fill pattern etc.
  • Page 19: Name Of Parts

    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.
  • Page 20 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.
  • Page 21 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.
  • Page 22 2FP/2FY/2FR This page is intentionally left blank. 1-1-10...
  • Page 23: Installation Environment

    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.
  • Page 24 2FP/2FY/2FR This page is intentionally left blank. 1-2-2...
  • Page 25: Unpacking And Installation

    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...
  • Page 26 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...
  • Page 27 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.
  • Page 28 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...
  • Page 29 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.
  • Page 30 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...
  • Page 31 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.
  • Page 32 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.)
  • Page 33 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.
  • Page 34 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.
  • Page 35 (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)
  • Page 36: Installing The Optional Network Interface Card

    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...
  • Page 37: Service Mode

    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...
  • Page 38 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.
  • Page 39 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/...
  • Page 40 (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)
  • Page 41 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...
  • Page 42 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...
  • Page 43 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...
  • Page 44 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...
  • Page 45 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...
  • Page 46 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.
  • Page 47 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.
  • Page 48 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.
  • Page 49 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.
  • Page 50 2FP/2FY/2FR This page is intentionally left blank. 1-4-14...
  • Page 51: Paper Misfeed Detection

    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...
  • Page 52 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...
  • Page 53 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...
  • Page 54 (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...
  • Page 55 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.
  • Page 56 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.
  • Page 57: Signal

    2FP/2FY/2FR Remarks Code Contents Causes Check procedures/corrective measures 4200 Laser scanner unit (Pin photo diode No laser beam Follow the flow chart below. sensor) error due to the laser • Laser beam detection failed. The pin diode defect photo diode sensor [board] (KP-1075) (PD*).
  • Page 58: Error

    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...
  • Page 59 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.
  • Page 60 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.
  • Page 61 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).
  • Page 62 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.
  • Page 63 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.
  • Page 64 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).
  • Page 65: Image Formation Problems

    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.
  • Page 66 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).
  • Page 67: Specifications 1

    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.
  • Page 68: Mount

    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.
  • Page 69 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.
  • Page 70 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.
  • Page 71: Electrical Problems

    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).
  • Page 72 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...
  • Page 73 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.
  • Page 74: Mechanical Problems

    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).
  • Page 75: Precautions For Assembly And Disassembly

    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.
  • Page 76: Figure 1

    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.
  • Page 77 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.
  • Page 78 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...
  • Page 79: Removing The Main Charger Unit

    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...
  • Page 80 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...
  • Page 81 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...
  • Page 82 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...
  • Page 83 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...
  • Page 84: Removing The Drum Unit

    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.
  • Page 85 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).
  • Page 86 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.
  • Page 87 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.
  • Page 88 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...
  • Page 89: Removing The Transfer Roller

    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.
  • Page 90 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.
  • Page 91 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...
  • Page 92 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...
  • Page 93 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...
  • Page 94 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.
  • Page 95 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...
  • Page 96 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.
  • Page 97 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...
  • Page 98 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.
  • Page 99 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.
  • Page 100 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...
  • Page 101: Removing And Splitting The Fuser Unit

    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...
  • Page 102 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...
  • Page 103 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...
  • Page 104 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.
  • Page 105 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.
  • Page 106 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.
  • Page 107 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.
  • Page 108 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...
  • Page 109: Removing The Laser Scanner Unit

    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...
  • Page 110 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.
  • Page 111 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]...
  • Page 112 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...
  • Page 113 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.
  • Page 114 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.
  • Page 115 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.
  • Page 116 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.
  • Page 117 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.
  • Page 118 2FP/2FY/2FR This page is intentionally left blank. 1-7-8...
  • Page 119: Paper Feeding System

    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.
  • Page 120 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...
  • Page 121 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.
  • Page 122 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.
  • Page 123 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.
  • Page 124: Electrophotographic Cycle

    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...
  • Page 125 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.
  • Page 126 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.
  • Page 127 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...
  • Page 128 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.
  • Page 129 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.
  • Page 130 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.
  • Page 131 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...
  • Page 132 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.
  • Page 133 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.
  • Page 134 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.
  • Page 135 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...
  • Page 136 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.
  • Page 137 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.
  • Page 138 2FP/2FY/2FR This page is intentionally left blank. 2-1-20...
  • Page 139 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.
  • Page 140 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.
  • Page 141 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.
  • Page 142 2FP/2FY/2FR This page is intentionally left blank. 2-2-4...
  • Page 143: Main Board

    2FP/2FY/2FR 2-3-1 Main board For FS-1920 model (KP-1053) Digital Transistor USBINIT USBDP USB I/F USBDN VBUS Engine I/F FPCLK EBA22, EBA10-1 EBIU Address bus FPDIR CDD15-8 EDB15-8 FPDAT EBOEN1, EBWEN1 Option CDRST1 Memory RESETN CDET CDCSN1 CDD7-0 EDB7-0 card EXTIOR1...
  • Page 144 2FP/2FY/2FR For FS-3820N/3830N models (KP-1033) FSDM, U04, U06, U08, U10 VALIDH Local data bus LD31-0 CPUD31-0 FSDP DATA+, USBCLK, LINESTATE0-1, Buffer DATA- TXREADY, RXERROR, HSDM, CPUA31-0 CPUD31-0 YC10 RXVALID, RXACTIVE HSDP USBRST, SUSPENDM, CPUA22-2 CPUA31-0 USB2.0 TDI ,TCK, Buffer TESTCTR2-3, OPMODE0-1 PPC750CXe TMS, HALTN TERMSELECT, TXVALID...
  • Page 145: Engine Board

    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...
  • Page 146 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...
  • Page 147 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...
  • Page 148 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...
  • Page 149: Sorter So

    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...
  • Page 150: Power Supply Unit

    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...
  • Page 151 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...
  • Page 152: Page

    2FP/2FY/2FR This page is intentionally left blank. 2-3-10...
  • Page 153 2FP/2FY/2FR Timing chart No. 1 Paper cassette feeding, A4 size paper [For FS-1920/3820N models] 2-4-1...
  • Page 154 2FP/2FY/2FR Timing chart No. 2 Paper cassette feeding, Letter size paper [For FS-1920/3820N models] 2-4-2...
  • Page 155 2FP/2FY/2FR Timing chart No. 3 Paper cassette feeding, Legal size paper [For FS-1920/3820N models] 2-4-3...
  • Page 156 2FP/2FY/2FR Timing chart No. 4 MP tray feeding, A4 size paper [For FS-1920/3820N models] 2-4-4...
  • Page 157 2FP/2FY/2FR Timing chart No. 5 MP tray feeding, Letter size paper [For FS-1920/3820N models] 2-4-5...
  • Page 158 2FP/2FY/2FR Timing chart No. 6 MP tray feeding, Legal size paper [For FS-1920/3820N models] 2-4-6...
  • Page 159 2FP/2FY/2FR Timing chart No. 7 Optional paper feeder feeding, A4 size paper [For FS-1920/3820N models] 2-4-7...
  • Page 160 2FP/2FY/2FR Timing chart No. 8 Paper cassette feeding, A4 size paper [For FS-3830N model] 2-4-8...
  • Page 161 2FP/2FY/2FR Timing chart No. 9 Paper cassette feeding, Letter size paper [For FS-3830N model] 2-4-9...
  • Page 162 2FP/2FY/2FR Timing chart No. 10 Paper cassette feeding, Legal size paper [For FS-3830N model] 2-4-10...
  • Page 163 2FP/2FY/2FR Timing chart No. 11 MP tray feeding, A4 size paper [For FS-3830N model] 2-4-11...
  • Page 164 2FP/2FY/2FR Timing chart No. 12 MP tray feeding, Letter size paper [For FS-3830N model] 2-4-12...
  • Page 165 2FP/2FY/2FR Timing chart No. 13 MP tray feeding, Legal size paper [For FS-3830N model] 2-4-13...
  • Page 166 2FP/2FY/2FR Timing chart No. 14 Optional paper feeder feeding, A4 size paper [For FS-3830N model] 2-4-14...
  • Page 167 2FP/2FY/2FR Wiring diagram [For FS-1920 model] 2-4-15...
  • Page 168 2FP/2FY/2FR Wiring diagram [For FS-3820N model] 2-4-16...
  • Page 169 2FP/2FY/2FR Wiring diagram [For FS-3830N model] 2-4-17...
  • Page 170 2FP/2FY/2FR Repetitive defects gauge First occurrence of defect [25 mm] Upper registration roller [38 mm] Lower registration roller [50 mm] Transfer roller [61 mm] Heat roller, Press roller (Fuser unit) [63 mm] Developing roller (Process unit) [94 mm] Drum (Process unit) 2-4-18...
  • Page 171 2FP/2FY/2FR This page is intentionally left blank. 2-4-19...
  • Page 172 MEMO:...
  • Page 173 MEMO:...
  • Page 174 MEMO:...

This manual is also suitable for:

Fs-3830nFs-3820n

Table of Contents