Page 3
Conventions/Preface Conventions Throughout this manual, the following conventions are used: Color (red) is available when viewed online to emphasize important notices. letters are used to name printer parts and assemblies. CAPITAL Italic letters refer related chapters or sections or documentations. Bold letters are also used for emphasis wherever italics may cause a confuse.
Page 4
Conventions/Preface About the chapters ... The service manual applies to the printer model Ecosys -6700 and its option paper feeder PF-25. It provides information on servicing the equipment in the following chapters: Chapter Contents One - Product information Includes printer specifications, product appearances, safety information, etc.
Page 5
Conventions/Preface REVISION HISTORY Version Date Replaced pages Remarks 1.00 19-July-98 — KE distribution only 1.10 1-Sep-98 — Inclusion of the PF-25 http://www.kyocera.com VISIT US AT OUR INTERNET HOME PAGE:...
Page 6
Conventions/Preface This page left intentionally blank...
Page 7
Appendix B S T A T U S P A G E B.1 Status page, page B-2 Service information on the status page, page B-2 Example of the service status page, page B-3...
Page 8
Status page The printer can print different types of the status page—the user status page and the service status page. This section exclusively describes the service status page. For information on the user status page, refer to the printer’s user’s Manual. Information obtainable on the service page include various settings for the printer, service statistics, etc.
Example of the service status page PAGE PRINTER STATUS PAGE Software version: Released: dd/month/yyyy Service information [A2/B2-33][A2][3.00][01]/P00/S00/F01/D00 Total page 3464 /0063/0126/1061/0811/AAAAAEI/AAAAAAA/AAAEJDJ/ DN:BDE8502337/DK-25/AAFEAI/RS2/[00-00] SN:SPL8500011 Table B. 1 Status page item information Example Meaning Top of page Software version: The version of the controller firmware. Released: The issued date of the firmware above.
Page 10
Table B. 1 Status page item information Example Meaning /0811 Page width inches+1/100 inches (FRPO L7/ L8), ex. 8 and 11/100 inches AAABEJD Total page count for A3/ledger A=0, B=1, C=2, ... J=9, ex. size paper “0001493 [pages]” AAAABEI Total page count for B4/legal size Same as above.
Appendix A P R I N T E R I N T E R F A C E A.1 Parallel interface, page A-2 Port pin assignment, page A-2 Parallel interface connection, page A-2 A.2 Serial interface, page A-4 Serial interface specifications, page A-4 Data error information (Snn), page A-5 Changing the serial interface configuration, page A-5 Serial port pin assignment, page A-6...
Parallel interface The printer uses a bi-directional parallel interface for high-speed data transmis- sion for the host computer. This interface includes the buffers which are compatible with the IEEE 1284 standards. The parallel interface provides support for the ECP and nibble modes in this standard. Port pin assignment The pins of the parallel interface connector carry the signals listed below.
Page 14
Table A. 2 Parallel interface signals—2/2 Signal Meaning Acknowledge* [nAck] This negative-going pulse acknowledges the previous character received by the printer. Acknowledge* pulses are sent only when Busy is low. Busy [Busy] This signal is high when the printer is busy and low when it is able to accept more data.
Serial interface The printer is equipped with a serial port whose circuitry duplicates the option interface card IB-9. The device responsible for controlling the serial interface is integrated in the gate array in the controller system. The serial interface supports both protocols of RS-232C and RS-422A.
†††.Robust: Xon is sent every 3 to 5 seconds during ready or waiting. Error Control: Sets the printer off line when an error occurs or at off line state. Data error information (Snn) A data error occurred on the serial interface is indicated on the service status page. The Snn code in the same row as Service information on the status page shows var- ious error conditions as follows: Table A.
RS-232C RS-422A position position Replace the main controller board back into the printer. Secure the board by the three screws. Serial port pin assignment The pins of the parallel interface connector carry the signals listed below. The RS- 422A specific signals are noted in the Definition. Table A.
Table A. 6 Meaning of signals—2/2 Signal Meaning All signals can transmit between the printer and the host computer to send each signals with a signal ground. This output transmits asynchronous inversed form of dif- ferential data from the printer to the computer. This output carries asynchronous non-inversed form of differential data from the cmputer to the printer.
Computer Printer serial port serial port (DB-25) (DB-25) GND-1 1-FG 2-TXD TXD-2 3-RXD RXD-3 RTS-4 4-RTS 5-CTS CTS-5 6-DSR DSR-6 GND-7 7-SG 20-DTR DTR-20 RS-422A Computer Printer serial serial port interface (DB-25) Frame gr. 1-FG 3-RD- Signal gr. 7-SF 9-SD- Rx term.
Page 20
Chapter 6 T R O U B L E S H O O T I N G 6.1 Board layouts, page 6-2 Liaison board KP-620, page 6-2 Scanner interface board KP-622, page 6-3 Connect board connector/KP-616, page 6-3 Fuser board KP-505/YC-721, page 6-4 6.2 Overall wiring diagram, page 6-5 6.3 Diagnostic, page 6-6 Engine diagnostics flow, page 6-7...
Troubleshooting Board layouts Board layouts This section explains the appearance and pin assignment for the printer boards. The wiring information for these boards is on , page 5. 6.2 Overall wiring diagram Liaison board KP-620 Table 6. 1 KP-620 connectors Loc.
Troubleshooting Board layouts Scanner interface board KP-622 Table 6. 2 CN13 (Scanner CN1) pin assignment Pin No. Signal LONB LASER VDOUT+ VDOUT- SCCLK SCRDY* SCANNER* +12V Connect board connector/KP-616 The two connectors at the right side of the printer are mounted on the connect board.
Troubleshooting Diagnostic Diagnostic The printer automatically executes its self-diagnostic test when it is powered up (displaying Self-test). The sequence and the items to be diagnosed are explained below. When the printer locates the error with a specific item, it calls for operator*s atten- tion by showing the appropriate message on the operator panel display.
Troubleshooting Diagnostic Engine diagnostics flow Power on Engine ROM cheksum E6 - Engine ROM error Fuser thermistor OK? E4 - Fuser error The heater lamp is turned on. The scanner polygon motor revolves. E2 - Polygon motor Polygon motor OK? error The polygon motor stops revolving.
Troubleshooting Diagnostic Logic controller diagnostics flow Power on System ROM cheksum F1 - System ROM error Communication E0 - Communication established between error engine and main CPUs? F2 - System memory System memory OK? error Controller is ready. For details on how to react to the results of diagnostics, refer to section Service errors on page 6-19.
Troubleshooting General error handling General error handling Priority Each error message has a priority over the others. Thus, if two or more error mes- sages are given simultaneously, the error message having the highest priority is shown. The priority is as follows (from the highest to the lowest): Table 6.
Troubleshooting User-recoverable errors User-recoverable errors User-recoverable errors do not normally require a service call unless the suggested remedy does not solve them. The instructions below indicate how to respond to problems indicated by the operator panel symbolic indicators and by the panel dis- play.
Page 31
Troubleshooting User-recoverable errors Table 6. 5 User-recoverable errors Indication Corrective action Warning low memory The printer’s internal memory is running low due to the number of fonts and macros downloaded. Print a status page to see how much user memory is left, and try deleting unnecessary fonts and macros.
Troubleshooting User-recoverable errors Table 6. 5 User-recoverable errors Indication Corrective action Format error MEMORY CARD This message appears when the printer is in the ready state and the memory card is not formatted, and therefore cannot be read or written. Follow the procedure on Section ...
Page 33
Memory card protect error. Release the write protection on the memory card when you write data to the memory card. SRAM Non-Kyocera format. Reformat the memory card using MODE SELECT (See the printerís userís manual). SRAM Partition name error. Follow instructions given attempt in Chapter 2 to properly name the destination.
Troubleshooting Service errors Service errors The printer does not operate when a message beginning with E, F, or C is dis- played. The total numer of pages printed is also indicated. The message is catego- rized as follows: Table 6. 7 Service person errors Message Corrective action Call service person...
Troubleshooting Service errors E0—Communication error Table 6. 8 E0 error Meaning Suggested causes Corrective action Communication between the • Controller gate array Verify connector connections. engine controller and the defect Replace the engine board main controller is failed. and/or the main controller •...
Page 36
Troubleshooting Service errors Figure 6.1 E1 error (Main motor error) Connect tester to #3 of CN1 of motor. Turn printer power off, then on agai. Print a status page. Turn printer power Is #3(MOTOR*) of Connect tester to #3 off, then on again. CN1 of motor L? of CN3 of KP-620.
Page 37
Troubleshooting Service errors Figure 6.2 E1 error—Continued Connect tester to #4 of CN3 of KP-620. Turn printer power off, then on again. Print a status page. Does motor clock appear at #4 of CN3 of motor? Replace harness bet. Turn printer power motor and KP-620 off, the on again.
Page 38
Troubleshooting Service errors Figure 6.3 E1 error—Continued Is volt. bet. #14 and #16 of CN1 of KP-620 +24V? Connect tester to #1 of CN3 of KP-620. Connect tester bet. #14 and #16 of CN14 of KP-616. Is #1 of CN3 of KP-620 +24V? Is volt.
Page 39
Troubleshooting Service errors Figure 6.4 E1 error—End Turn printer power off, then on again. Print a status page. Is #12 of CN1 of KP-620 Turn printer power off, then on again. Print a status page. Replace KP-620. Is #12 of CN14 of KP-616 Connect tester #12 of CN14 of KP-616 and #50 of CN21 of KP-614.
Troubleshooting Service errors E2—Laser scanner motor error Table 6. 10 E2 error Meaning Suggested causes Corrective action The polygon motor does not • Timeout in the predeter- Follow the flow chart on the deliver a synchronous output mined period of lead time next page.
Page 41
Troubleshooting Service errors Figure 6.5 E2 error (Scanner motor error) Connect tester to #10 of CN1 of KP-622. Is #10 (SCANR*) Connect tester to #10 Turn printer power of CN1 of of CN13 of KP-616. off, then on again. KP-622 L? Turn printer power off, then on again.
Page 42
Troubleshooting Service errors Figure 6.6 E2 error—Continued Is #12 of CN1 of KP-622 +24V? Turn printer power off, Are #14-16 of CN14 then on again. Print a of KP-616 +24V? status page. Is #9 of CN1 of KP-622 low? Are #14-16 of CN14 of KP-616 +24V? Replace laser scanner unit.
Page 43
Troubleshooting Service errors Figure 6.7 E2 error—End Connect tester bet. #8 Connect tester bet. of CN13 of KP-616 and #10 of CN13 of KP-616 #22 of CN21 of and #30 of CN21 of KP-614. KP-614. Conducted? Conducted? Replace KP-614. Replace KP-616. 6-24 FS-6700...
Troubleshooting Service errors E3 - Laser beam detection error Table 6. 11 Meaning Suggested causes Corrective action Beam detection is failed. The • No beam hit due to the Follow the flow chart on the photo detector board does not laser diode defect (PD*) next page.
Page 45
Troubleshooting Service errors Figure 6.8 E3 error (Scanner beam detector error) Connect tester to #4 of CN1 of KP-622. Turn printer power off, then on again. Connect tester to Turn printer power Is #4 (LASER) of CN1 #4 of CN13 of off, then on again.
Troubleshooting Service errors Figure 6.9 E3 error—Continued Connect tester #7 of Connect tester to #4 CN13 of KP-616 of CN13 of KP-616 and #18 of CN21 of and #6 of CN21 of KP-614. KP-614. Conducted? Conducted? Replace KP-614. Replace KP-616. FS-6700 6-27...
Troubleshooting Service errors E4 - Fuser heater error Table 6. 12 E4 error Meaning Suggested causes Corrective action The fuser heater is not intact • Blown-out thermistor Follow the flow chart on the due to disconnection or the next page. •...
Page 48
Troubleshooting Service errors Figure 6.10 E4 error (Fuser heater error) "E4" shown immediately after power up? Replace fuser unit. Turn printer power off and remove power cable. Measure fuser roller temperature. Measure DC resistance between #5 and #8 of YC721 on KP-499 (fuser) board.
Troubleshooting Service errors E5—Eraser error Table 6. 13 E5 error Meaning Suggested causes Corrective action The eraser is blown out or the • Blown-out LED chip(s) Follow the flow chart on the power supply does not reach next page. • Connector insertion error to the eraser.
Troubleshooting Service errors ED—Flash ROM error Table 6. 14 ED error Meaning Suggested causes Corrective action Checksum is erroneous with • Data readout error on the Replace the engine board. the flash ROM. flash ROM E9 - Toner motor error Table 6.
Troubleshooting Service errors F0 - Front control panel error Table 6. 16 F0 error Meaning Suggested causes Corrective action Communication is failed • — Replace the main controller between the front panel and board. To remove the main the main controller. controller board, see page 2-9.
Page 52
Troubleshooting Service errors Figure 6.13 False error—Feed unit cover open False error [Feed unit cover open] Connect tester to #10 of CN1 on KP-628. Is #10 (FCOVER) low? Replace KP-614 board. Connect tester to #10 of CN22 on KP-614. Is #10 low? Replace KP-628.
Page 53
Troubleshooting Service errors Figure 6.14 Falser error—Top cover open False error [Top cover open] Is #11 (TCOVER) of CN1 on KP-628 low? Replace KP-628 board. Connect tester to #11 of CN22 on KP-614. Is #11 low? Replace KP-628. Replace KP-614. 6-34 FS-6700...
Page 54
Troubleshooting Service errors Figure 6.15 False error—Side cover open False error [Side cover open] Is #1 (SCOVER) of CN1 on KP-628 low? Replace KP-628 board. Connect tester to #1 of CN22 on KP-614. Is #1 low? Replace KP-628. Replace KP-614. FS-6700 6-35...
Page 55
Troubleshooting Service errors Figure 6.16 False error—Missing waste toner bottle False error [Missing waste toner bottle] Is #4 (TNCON*) of CN1 on KP-628 low? Replace KP-628 board. Connect tester to #4 of CN22 on KP-614. Is #4 low? Replace KP-628. Replace KP-614.
Troubleshooting Print quality problems Print quality problems Print quality problems range from uneven tone to completely blank output. The troubleshooting procedure for each type of problem is given below. Completely blank printout Checkpoint Suggested remedy Check the developer unit. • Check that the developer unit is inserted correctly •...
Troubleshooting Print quality problems Black vertical streaks Check point Suggested remedy Check the front display for • If the display shows that the toner is running out, indication of “Toner low.” replace the toner container with a new one. See page 3, Toner container replacement.
Troubleshooting Print quality problems Check point Suggested remedy Check the front display for • If the display shows that the toner is running out, indication of “Toner low.” replace the toner container with a new one. See page 3, Toner container replacement. Check the main charger unit •...
Troubleshooting Print quality problems Checking cassette size sensors The printer tells the size of paper (cassette) to be fed by means of sensors on the KP-614 and KP-616 boards. These sensors (switches) are activated by the pushing pegs on paper cassettes in different paper sizes. If the sensors are not correctly activated in a correct matrix of activation, paper jam or printing defects like above may occur.
Page 60
Troubleshooting Print quality problems To clean the drum using this feature, peform the following: Press MODE Press repeatedly until Others> is indicated. Press > Press + repeatedly until >Service> is indicated. Press >. The display should show >>Developer. Press + the display should show >>Drum. Press .
Troubleshooting Print quality problems This page left blank intentionally 6-42 FS-6700...
Page 62
Chapter 5 D I S A S S E M B L Y General Instructions, page 5-2 Screws/hardware, page 5-2 Disassembly: Main unit printer, page 5-3 Removing the developer unit, page 5-3 Shipping the developer unit, page 5-4 Installing a new developer, page 5-4 Removing the paper feed unit, page 5-5 Removing the transfer roller, page 5-6 Cleaning the transfer roller, page 5-6...
Disassembly General Instructions General Instructions This chapter provides procedures for removal and replacement of field replacement components. For other components not shown in this chapter, the diagrams in the Parts Catalog attached with this manual will help locate the component. For replacement of a component, use the reverse of the removal procedures explained in this chapter.
Disassembly Disassembly: Main unit printer Disassembly: Main unit printer In order to remove the drum unit, the toner con-tainer, developer unit, and the paper feed unit must be removed beforehand. Note In most cases, the toner container and the developer unit must be removed in the beginning.
Disassembly Disassembly: Main unit printer Note After removing the developer, seal it in the protective bag and place it on a flat sur-face. Do not place the developer in a dusty area. If you ship the developer, pack it in the shipping container specifically sup- plied with the printer.
Disassembly Disassembly: Main unit printer Flap the magnet roller protective cover up. Protective cover Install the developer using the reverse manner of removing the developer explained above. Connect the developer connector. Removing the paper feed unit The paper feed unit can be removed from the printer without using tools. First, be sure to remove the paper cassette entirely out.
Disassembly Disassembly: Main unit printer Removing the transfer roller Before removing the transfer roller, remove the paper feed unit out of the printer. Caution Do not touch the transfer roller (sponge) surface. Oil and dust (parti- cles of paper, etc.) on the transfer roller can significantly deteriorate the print quality (white spots, etc.).
Disassembly Disassembly: Main unit printer Removing the registration rollers Before removing the registration rollers, remove the paper feed unit out of the printer. To remove the paper feed unit, see page 5-5, Removing the paper feed unit Remove the registration rollers cover. The cover is locked by two catches that lock it onto the paper feed unit.
Disassembly Disassembly: Main unit printer Remove the coil springs that are used to secure and press the top (metal) registra- tion roller towards the bottom (rubber) registration roller underneath. Top regist. Top regist. roller roller Removing the drum unit Caution Before removing the drum unit, be sure to remove the developer unit and draw out the paper feed unit half way.
Disassembly Disassembly: Main unit printer Caution Store the drum unit in a clear, clean place, not exposed to a strong light source. Seal it in a protective bag. Avoid bump the drum surface onto hard objects. Replacing the drum unit To replace the drum unit into the printer, be sure to align the guides and rails on the drum unit with each other.
Disassembly Disassembly: Main unit printer Top side cover Open the toner container access door. Remove two screws . While holding the spring-loaded back side cover to open, pull the back plane of the top cover away from the printer, then pull it upwards to remove. Removing covers The left and right side covers are snapped onto the chassis by catches and holes.
Disassembly Disassembly: Main unit printer Removing front cover Remove the two screws at the front side. Detach the catches at the left and right bottom of the cover as marked by circles below. To disengage these catches, proceed to the next step. Remove the ground wire and the connector below.
Disassembly Disassembly: Main unit printer Removing the main motor Remove the right side cover first (page 5-10, ). Remove the four Removing covers screws . Then, remove the connector. Removing the drive assembly Remove the right side cover first (page 5-10, ).
Disassembly Disassembly: Main unit printer Removing the fuser unit Remove the left and right covers (page 5-10, Removing covers Warning The fuser is hot after the printer was running. Wait until it cools down. Detach all connectors from the fuser unit first. Remove the four screws .
Disassembly Disassembly: Main unit printer Remove the four screws and remove the fuser top cover. Remove the heater lamp. Note Do not directly touch on the heater lamp. Finger prints on the heater’s outer surface can prevent proper fusing of toner on paper. To install a new heater lamp, be sure that the lamp terminal (end) is properly hitched by the fuser terminal...
Disassembly Disassembly: Main unit printer Heat roller plate fuser up Removing the thermistor and thermal cutout Thermistor Thermal cutout FS-6700 5-15...
Disassembly Disassembly: Main unit printer Replacing the heat roller To replace the heat roller, align the positioning keys on both collars so that they face the paper input side (the drum unit side) [horizontally]. Then insert the heat roller retainer back in place. Keys roller heat Removing the controller box...
Page 78
Disassembly Disassembly: Main unit printer Remove the high-voltage board at the left side of the printer. To do this, remove the three screws Remove the two screws at the left side of the printer. Disengage the connectors. FS-6700 5-17...
Page 79
Disassembly Disassembly: Main unit printer Remove the two screws on the front side. Hold the upper frame and lift to remove. On the controller box, remove the six screws on top and the two screws at the rear side. Remove the cover. 5-18 FS-6700...
Disassembly Disassembly: Main unit printer Removing the face-down pulley assembly Remove the screw to remove the face-down pulley assembly. Face-down assembly FS-6700 5-19...
Disassembly Disassembly: Option paper feeder Disassembly: Option paper feeder This section describes instructions on how to disassemble the option paper feeder PF-25 for the FS-6700 printer. Before proceeding; Disconnect power from the printer • Remove the printer (and the duplexer if installed). •...
Disassembly Disassembly: Option paper feeder Removing the motor assembly To remove the motor assembly, remove the two screws atop that secure the motor bracket and the one screw at the bottom. 10.cdr The following picture shows the motor assembly and the gears mounted on the motor bracket.
Page 83
Disassembly Disassembly: Option paper feeder This page left blank intentionally 5-22 FS-6700...
Page 152
Chapter 1 P R O D U C T I N F O R M A T I O N 1.1 Printer identification labeling, page 1-4 1.2 Printer specifications, page 1-5 Recommended flash cards, page 1-6 1.3 Front and internal views, page 1-7 Internal Component, page 1-8 1.4 Safety information, page 1-10 Laser safety, page 1-10...
P R O D U C T I N F O R M A T I O N Printer identification labeling Printer identification labeling The printer bears its model and serial numbers on a label at its back. The label also contains other safety precautions.
P R O D U C T I N F O R M A T I O N Printer specifications Printer specifications Table 1. 1 Printer specifications—1/2 Item Specification Print system Laser photoelectrography 20 ppm for A4/Letter size lengthwise, 12.5 ppm for B4, 11 ppm Print speed for A3/Ledger size Print resolution...
P R O D U C T I N F O R M A T I O N Printer specifications Table 1. 1 Printer specifications—2/2 Item Specification Altitude 2000 m Printing—51 dB(A), standby—38 dB(A), sleeping—unmeasur- Noise ably low a. Printing the same page in copy mode b.
P R O D U C T I N F O R M A T I O N Front and internal views Front and internal views Paper ejection roller Front operator panel Feed unit release lever Power switch Toner bottle/drum Paper cassette access door MP tray...
P R O D U C T I N F O R M A T I O N Front and internal views Internal Component Laser scanner unit Paper ejection roller Top cover safety lock Liaison board Upper unit ventilation fan Main motor manual feed actuator Memory card slot...
Page 158
P R O D U C T I N F O R M A T I O N Front and internal views Laser scanner unit Rear cover High-voltage board Face-up paper ejection slot Main charger unit Option interface (Covered) Drum unit Parallel interface YC2 Serial interface YC3 AC power receptacle...
P R O D U C T I N F O R M A T I O N Safety information Safety information Laser safety This printer is certified as a Class 1 laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to Radiation Control for Health and Safety Act of 1968.
P R O D U C T I N F O R M A T I O N Safety information Figure 1.2 Laser notice label Warning Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation expo- sure.
P R O D U C T I N F O R M A T I O N Safety information FCC notice This device complies with Part 15 of the FCC Rules. Operation is subject to the fol- lowing two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
P R O D U C T I N F O R M A T I O N Safety information Canadian Department of Communications compliance statement This Class B digital apparatus meets all requirements of the Canadian Interfer- ence-Causing Equipment Regulations. Avis de conformité...
P R O D U C T I N F O R M A T I O N Installation Installation Environmental requirements Environmental conditions Environmental conditions described in Table 1. 1 on page 3 should be observed to ensure the optimum operation of the printer. The use of the printer in a location which does not satisfy the requirements may result in troubles and risk shortening its service life.
P R O D U C T I N F O R M A T I O N Installation Places to avoid Avoid installing the printer in locations exposed to: Direct drafts of hot or cold air. • Direct drafts of outside air. (Avoid locations next to outside doors.) •...
Caution As the Ecosys printers are designed to ensure the optimum print qual- ity when used with the Kyoceraís proprietary toner, Kyocera do not recommend to use any refilled toner containers that may be available commercially. This is because Kyocera have no means for control over how such refilled toner could affect the print quality and the reliabil- ity of the printer.
P R O D U C T I N F O R M A T I O N About the toner Toner storage The toner contained in the container is susceptible to temperature and humidity. To ensure the high print quality, store the toner container in a place that satisfy the following environmental conditions: Table 1.
Page 167
P R O D U C T I N F O R M A T I O N About the toner This page left blank intentionally 1-16 FS-6700...