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Kyocera Mita FS-1900, Service Manual

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Kyocera Mita FS-1900 Service Manual Download Page 108

4-33

FS-1900

Interlock circuit

Figure 4-3-11 Interlock system

The interlock circuit is constituted by SW702, the top cover/paper transfer unit interlock, and SW703,

the left cover interlock, both mounted on the sensor board. These switches are controlled by the

actuator which is mechanically activated by the projection on the top cover and the paper transfer

unit. SW703 and SW702 are connected in series to the +24 V power. Physically opening the top

cover, left cover, or the paper transfer unit will disconnect the +24 V power, signaling the status to

the engine board. The top cover switch (SW701) serves only the top cover.

Top cover

Left cover

Sensor board

Left cover
interlock 
switch
(SW703)

Top cover/
paper transfer 
unit interlock 
switch (SW702)

Top cover
switch 
(SW701)

Projection

Projection

Projection

Paper transfer unit

Actuator

Summary of Contents for Mita FS-1900

Page 1: ...SERVICE MANUAL Published in Dec 01 Revision 1 1 Laser printer...

Page 2: ...Version Replaced pages Remarks Date 1 0 1 1 Revision history 5 Dec 2001 17 Dec 2001 1 4 1 5 2 10 2 20 2 23 3 3 3 17 4 23 4 26 5 24 B 4 B 5 C 7...

Page 3: ...sonnel 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...

Page 4: ...ompliance with warning messages using this symbol WARNING Serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol CAUTI...

Page 5: ...or dusty place This may cause fire or electric shock Do not install the printer near a radiator heater other heat source or near flammable material This may cause fire Allow sufficient space around t...

Page 6: ...clean Dirt on them can cause abnormally high temperatures Do not remove the ozone filter if any from the printer except for routine replacement 2 Precautions for Maintenance WARNING Always remove the...

Page 7: ...t all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling Replace with new ones if necessary Handle greases and solvents with care...

Page 8: ...5 2 3 Using the operator panel 2 17 Chapter 3 3 1 Maintenance Adjustments 3 3 Chapter 4 4 1 Electrophotographic system 4 3 4 2 Paper feeding system 4 18 4 3 Electrical control system 4 23 Chapter 5 5...

Page 9: ...Chapter 1 P r o d u c t I n f o r m a t i o n...

Page 10: ...s 1 9 1 2 1 Names of parts 1 9 1 3 Safety information 1 10 1 3 1 Safety information 1 10 1 Laser caution label on the scanner unit 1 10 2 Ozone concentration 1 11 3 ISO 7779 1 11 4 CE marking directiv...

Page 11: ...Electrophotography laser scan 18 pages min A4 19 pages min Letter Fast 1200 mode with KIR 600 dpi with KIR 300 dpi with KIR KIR Kyocera Image Refinement Approximately 19 seconds or less 16 seconds or...

Page 12: ...2 MB 16 MB 144 MB Including the standard 16 MB main RAM 1 DIMM slot Accepts any of 16 32 64 128 MB DIMM CompactFlash Microdrive 340 MB 512 MB 1 GB High speed bidirectional IEEE1284 Revision 1 1 stand...

Page 13: ...requirements 220 240 V AC 10 50 60 Hz 2 3 6 A European countries 120 V AC 10 60 Hz 2 7 2 A U S A Canada 961 W 15 W 12 W Operating temperature and humidity Maximum altitude Noise emission Excluding pea...

Page 14: ...ry DIMM on page 2 10 NOTE Availability of the following memory DIMMs manufacturers and specifications may change without notice No responsibility is assumed by Kyocera Mita with respect to loss or dam...

Page 15: ...f the following memory cards CompactFlash manufacturers and specifications may change without notice No responsibility is assumed by kyocera Mita with respect to loss or damage caused by the use of th...

Page 16: ...I 8 MB HB286008C4 16 MB HB286016C4 32 MB HB289032C4 48 MB HB289048C4 64 MB HB288064C5 Transcend 4 MB TS4MFLASHCP 8 MB TS8MFLASHCP 16 MB TS16MFLASHCP 32 MB TS32MFLASHCP SST 8 MB SST48CF008 16 MB SST48C...

Page 17: ...Power switch 8 Paper size dial 9 Waste toner box 0 Left cover Charger Cleaning knob Paper stopper Face down output tray Memory card slot Paper transfer unit Paper transfer unit release lever MP tray...

Page 18: ...n label on the scanner unit The laser scanner unit inside the printer has the following label affixed on its top Observe the laser radiation warning and figures when handling the laser scanner unit WA...

Page 19: ...acturer s address 704 19 Nojino Tamaki Cho Watarai Gun Mie Ken 519 0497 Japan declares that the product Product name Page Printer Model number FS 1900 as tested with the enhancement optional unit PF 6...

Page 20: ...eder as PF 60 a duplexer as DU 60 a sorter as SO 60 etc Conforms to the following product specifications AS NZS 3548 1995 EN 55 022 1994 Class B IEC60950 EN 60 950 1992 A1 A2 A3 A4 A11 IEC60825 1 EN 6...

Page 21: ...n unstable cart stand or table Near an AC wall outlet preferably one that can be used for the printer alone The outlet should have a ground slot or an adapter should be used If you use an extension co...

Page 22: ...earance on all sides of the printer as below 1 2 3 4 5 Ref Clearance Dimensions Minimum 1 Left 30 cm 11 13 16 inches 2 Front 60 cm 23 5 8 inches 3 Right 25 cm 9 7 8 inches 4 Back 20 cm 7 7 8 inches 5...

Page 23: ...not use other power sources Disconnect the printer from the power source before attempting removal or replacement of an electrical component or a printed circuit board The printer should not be connec...

Page 24: ...ner process unit and the supplies should be removed from the vehicle The vehicle during transportation should be parked in the shade or with the window open to allow minimum air circulation or the ade...

Page 25: ...use any refilled toner containers that may be available commercially This is because Kyocera have no means of control over how such refilled toner could affect the print quality and the reliability of...

Page 26: ...Temperature 20 to 40 C 4 to 104 F Humidity 15 to 90 RH NOTE If the toner container is removed from the printer s developer put it in a protective bag and keep it in a dark place CAUTION If the printe...

Page 27: ...Chapter 2 Installation Operation...

Page 28: ...s on handling DIMM 2 11 4 Installing the DIMM 2 12 5 Testing the expansion memory 2 13 6 Installing the option hard disk Microdrive 2 14 7 Installing the option memory card CompactFlash 2 15 8 Install...

Page 29: ...unpacking place the box containing the printer on a flat stable surface Remove the manuals toner kit and other items located on top of the spacer Then remove the spacer Carefully remove the printer O...

Page 30: ...2 4 FS 1900 1 Printer 2 Toner container 3 Waste toner box 4 Power cord 5 Installation manual 6 Kyocera digital library CD ROM 7 Plastic bag 1 2 3 4 5 6 7 Figure 2 1 2 List of shipped components...

Page 31: ...lling the toner container 1 Open the top cover all the way 2 Take toner container 1 from the bag With the label side down and pivoting on the middle of the container thoroughly shake the toner contain...

Page 32: ...2 6 FS 1900 3 Carefully remove the protective seal 2 Figure 2 2 2 Removing the protective seal 4 Install the toner container 3 into the printer Figure 2 2 3 Installing the toner container 2 3...

Page 33: ...tainer To remove the toner container pull the lock lever green colored 1 and gently lift the toner container NOTE Do not remove the toner container unless you need to do so for servicing etc Figure 2...

Page 34: ...must be properly fitted inside the left cover as explained below 1 Open the cap 1 of the waste toner box 2 2 Open the left cover 3 and install the waste toner box 2 so that it is properly seated in t...

Page 35: ...e waste toner box 1 while holding the waste toner box 1 press the lock lever 2 aside then gently remove the waste toner box 1 sideways NOTE Do not remove the waste toner box unless you need to do so f...

Page 36: ...MM specifications Resolution Printing environment 300 dpi 600 dpi 1200 dpi Emulation Fast mode PCL6 duplex mode None 8 MB 8 MB 8 MB PCL6 duplex mode On 8 MB 8 MB 8 MB KPDL duplex mode None 8 MB 8 MB 8...

Page 37: ...the following notes NOTE Before touching a DIMM touch a water pipe or other large metal object to discharge yourself of static electricity While doing the work it is recommended that you wear an anti...

Page 38: ...lead to fire or electric shock WARNING Before proceeding installation turn the printer s power switch off Unplug the printer s power cable and disconnect the printer from the computer or the network...

Page 39: ...10 Inserting the DIMM 2 5 Testing the expansion memory To test the expansion memory turn printer power on and print a status page If the installation has been successful the Available Memory item of t...

Page 40: ...ter time For details of these functions refer to the printer s Users Manual CAUTION Take precautions that no foreign objects such as metal chips or liquid get inside the printer during the installatio...

Page 41: ...memory card is removed while the printer is on damage could result in the printer s electronics or the memory card 1 Turn the power switch off 2 Insert the memory card 1 in the memory card slot 2 at...

Page 42: ...WARNING Turn the printer s power switch off Unplug the printer s power cable and disconnect the printer from the computer 1 Turn the power switch off 2 Remove the two screws 1 then remove the option i...

Page 43: ...s power cable and disconnect the printer from the computer 1 Turn the power switch off 2 Remove the two screws 1 then remove the main board 2 3 Remove the two screws 3 then remove the option interfac...

Page 44: ...iption 1 READY indicator 2 DATA indicator 3 ATTENTION indicator Flashing Lit Off Flashing Lit Flashing Lit Off An error has occurred that the user can clear The printer is on line and ready to print T...

Page 45: ...rface selected will be stopped The Cancelling data message appears in the message display and printing stops after the printer finishes printing the current page Resets numeric values or cancels a set...

Page 46: ...ment 5 1 2 8 1 2 inches LG Legal 8 1 2 14 inches FO Folio 210 330 cm MO Monarch 3 7 8 7 1 2 inches HA Japanese postcard 10 14 8 cm BU Business 4 1 8 inches OH Return postcard 20 14 8 cm DL ISO DL 11 2...

Page 47: ...or PREPRINTE Preprinted PREPUNCH Prepunched LABELS Labels ENVELOPE Envelope BOND Bond CARDSTOCK Cardstock RECYCLED Recycled CUSTOM1 to 8 Custom 1 to 8 VELLUM Vellum with only the MP tray feeding 4 Pap...

Page 48: ...ntainer is installed Adding toner also appears The printer is ready to print The printer is receiving data generating graphics reading an memory card CompactFlash hard disk Microdrive or printing The...

Page 49: ...election system of the printer Private Stored Print VMB Data Parallel I F Nibble high Parallel I F Auto Parallel I F Normal Parallel I F High Speed Quick Copy Data Bits 8 Stop Bits 1 Parity None Proto...

Page 50: ...Gothic Dark I000 Size 012 00 point s Pitch 10 00 cpi List of Option Fonts List of Internal Fonts Copies 001 Orientation Portrait Orientation Landscape Page Protect Auto Page Protect On LF Action LF o...

Page 51: ...dpi Resolution 600 dpi Print Density 03 Read Data Write Data Delete Data List of Partitions RAM Disk Size Read Data Write Data Delete Data List of Partitions Print Quality Hard Disk RAM Disk Mode On R...

Page 52: ...Drum LIFE Counters Others MP Tray Mode First MP Tray Size A4 or Letter MP Tray Type Plain EF Size DL or Business EF Type Plain BulkFeeder Size BulkFeeder Type Plain Cassette Size Duplex Mode None Sta...

Page 53: ...Chapter 3 Maintenance Adjustments...

Page 54: ...e printer 3 8 1 Main charger unit 3 8 2 Cleaning the main charger wire and grid 3 9 Main charger wire 3 9 Grid 3 10 3 Paper transfer unit 3 12 4 Replacing the developer 3 13 Shipping the developer 3 1...

Page 55: ...le except toner containers can be found in the separate Parts Catalog Table 3 1 1 Life expectancy of modules Module Model Nominal life pages Toner container 1 TK 50 10 000 Drum unit DK 63 300 000 Deve...

Page 56: ...and clean the inside of the printer when this message appears If the printer stops printing while Replace toner TK 50 is display replace the toner container to continue printing 2 Notes on changing t...

Page 57: ...1900 3 Toner container replacement To replace the toner container open the top cover Pull the lock lever 1 to the right and gently lift the old container 2 Figure 3 1 1 Removing the old toner contain...

Page 58: ...See also the instructions provided in chapter 2 Installing the toner container on page 2 5 to complete installation of the new toner container 4 Toner saver mode EcoPrint The EcoPrint enables to redu...

Page 59: ...data the check waste toner bottle message may be displayed earlier than the replace toner clean printer message Open the side cover While holding old the waste toner box 1 press the lock lever 2 in th...

Page 60: ...1 Main charger unit The main charger unit should be cleaned in its two parts the main charger wire and grid See figure below whenever the toner container is changed Cleaning of the main charger can be...

Page 61: ...d Main charger wire 1 Open the left cover 1 2 Pull the cleaning knob green colored 2 slowly in and out a few times NOTE Cleaning knob pulls a cleaning pad inside the drum unit along the main charger w...

Page 62: ...e the cap 3 NOTE The grid cleaner pad is impregnated with water Perform the following cleaning procedure before the pad dries Figure 3 1 6 Grid cleaner 2 Attach the grid cleaner 1 to the drum unit 3 w...

Page 63: ...sable 3 After attaching the grid cleaner repeat the action of slowly pulling out and then pushing back in the main charger unit at least 5 times It is easier to pull out the main charger with its fron...

Page 64: ...ration roller 2 and the paper ramp 3 using the wiper cloth 4 included in the toner kit CAUTION Do not touch the transfer roller 5 black sponge roller when wiping the paper ramp 3 Area 6 below is facto...

Page 65: ...Developer initialization Feeding toner into the new developer on next page Shipping the developer The printer is supplied with a plastic bag that should be retained for future shipment of the develop...

Page 66: ...edly 3 Press the key 4 Press the key repeatedly 5 Press the key 6 Press the ENTER key 7 Press the ENTER key 8 Turn printer power off then on 9 Developer initialization is finished The printer enters t...

Page 67: ...the parallel interface 3 At the DOS prompt send the following command to the printer ECHO R EXTP 7 92 EXIT PRN 4 Turn printer power off then on The toner refreshing mode will begin The old toner will...

Page 68: ...cleaning mode varies depending on the current setting for the sleep timer and will be deactivated during the developer initialization The drum cleaning mode is also activated manually by following the...

Page 69: ...MM board KP 893 Flash ROM type only on the main board The operator panel message in different languages can also be downloaded through the parallel interface or through the memory card CompactFlash NO...

Page 70: ...Kyocera EB02KA002 x01 dm0201 spa Machine code FS 1900 B02 Machine code FS 1900 B02 Machine code FS 1900 B02 Language code jpn Japanese dan Dutch swe Swedish ita Italian spa Spanish por Portuguese rus...

Page 71: ...allel interface The computer must be connected to the printer with a parallel cable 1 Turn power switch on 2 At the DOS prompt send the command to the printer that engages the printer in the superviso...

Page 72: ...endix B on page B 4 If the message display indicates download error refer to section Downloading errors on page 3 23 data receiving BootROM erase write engine download message download DIMM erasing Re...

Page 73: ...an accidental power failure etc the system DIMM may have to be replaced NOTE The firmware program data must be stored to the root directory of the memory card CompactFlash 1 Turn power switch off 2 In...

Page 74: ...he message display indicates download error refer to section Downloading errors on page 3 23 Supervisor mode CF CARD Reading BootROM erase write engine download message download DIMM erasing Ready Pow...

Page 75: ...nection of parallel cable between PC and printer Incompatibility of firmware and engine board Improper connection of parallel cable between PC and printer Defective LCD controller board Obtain the cor...

Page 76: ...Chapter 4 O p e r a t i o n O v e r v i e w...

Page 77: ...hanism 4 20 Drive and paper transfer unit 4 20 MP tray paper feed unit 4 21 Fuser unit and face up down output 4 22 4 3 Electrical control system 4 23 4 3 1 Electrical parts layout 4 23 1 Circuit boar...

Page 78: ...rated by a laser diode This section provides technical details on the printer s electrophotography system 4 1 1 Electrophotographic cycle The electrophotographic system of the printer performs a cycli...

Page 79: ...toner full sensor receiver 6 Cleaning blade 7 Cleaning roller 1 Main charging Components of drum and main charger unit 8 Cleaner screw 9 Drum gear Z36H 0 Drum Main charger shield Grid Main charger wi...

Page 80: ...ronically conductive when exposed to a laser light source to effectively ground electrons charged on its outer surface to the ground This layer is approximately 9 m thick The carrier block layer lies...

Page 81: ...harger wire B The grid C regulates the main charging potential so that it is evenly and stably dispersed over the drum A at a constant voltage level Due to being high voltage scorotron charging the ma...

Page 82: ...ure The polygon motor C with polygon mirrors revolves 27 165 rpm to reflect the laser beam over the drum A Lenses D and diversion mirror E are housed in the laser scanner unit B These lenses adjust th...

Page 83: ...rical lens Compensates the vertical angle at which the laser beam hits on of the polygon mirror segments 4 Polygon motor Has six mirror segments around its hexagonal circumference Each mirror correspo...

Page 84: ...nger as the laser beam hits closer to the drum edge In the figure 4 1 7 below distances represented by A and B are not the same A B until the f theta lenses are provided between the polygon mirror and...

Page 85: ...he electrical resistance of the photoconductor is reduced and the potential on the photoconductor is also lowered Resulted on the drum surface is an electrostatic image which represents the data to pr...

Page 86: ...1900 3 Development Figure 4 1 9 Developer mechanism 1 Toner motor 2 Toner sensor 3 Developing roller 4 DLP A screw 5 DLP B screw 6 Blade 7 Magnet 6 7 1 B A 5 3 2 4 Toner container Developer B A Power...

Page 87: ...10 Development The developing roller B is applied with the AC weighted positive DC power source Toner F on the developing roller B is given a positive charge The positively charged toner F is then at...

Page 88: ...ntainer 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 Figure 4 1 11 Toner sens...

Page 89: ...hed by the drum A and the transfer roller B Figure 4 1 12 Transfer The nominal transfer bias is set to approximately 2 3 kV limit Since the ideal potential of the transfer bias depends on the thicknes...

Page 90: ...has four scraping claws Separators D which are continuously in contact with its surface These claws prevent the paper on which toner has been fused from being wound around the heat roller A causing pa...

Page 91: ...4 Exit sensor 5 Fuser board KP 756 6 Press roller 7 Heat roller 8 Exit roller 9 Exit pulley s 0 Heat gear Z36 Exit gear Z21 Idle gear Z18 Idle gear Z28 Separator s Change guide Heater lamp To face up...

Page 92: ...nected to collect the waste toner Figure 4 1 15 Drum cleaning and erasing static charge After the drum B is physically cleaned it then must be electrically cleaned to neutral state This is necessary t...

Page 93: ...figure below shows the components in the paper feeding system and the paths through which the paper travels The sensors clutches solenoids motor etc are described in the following pages 1 Middle feed...

Page 94: ...4 Paper gauge sensor 1 2 5 Exit sensor 6 Paper full sensor 7 MP tray feed solenoid 8 Middle feed clutch 9 Feed clutch 0 Registration clutch Face up down solenoid Toner container MP tray Paper cassette...

Page 95: ...re 4 2 3 Drive and paper transfer unit 1 Main motor 2 Registration clutch 3 Feed clutch 4 Pickup roller 5 Feed roller 6 Lower registration roller 7 Upper registration roller 8 Transfer roller To fuser...

Page 96: ...4 MP tray paper feed unit 9 Middle feed clutch 0 MP tray feed solenoid Drive unit MP tray paper feed unit MP tray To paper transfer unit D Power train 9 C 0 C D MP tray paper feed unit MP tray feed ro...

Page 97: ...Heat roller Press roller Exit roller Exit pulley s To face down output tray To face up output tray or option device F Drive unit Power train Paper from paper transfer unit FD gear bracket Fuser unit F...

Page 98: ...tem 4 3 1 Electrical parts layout 1 Circuit boards sensors and switches 1 Main board KP 948 2 System DIMM board KP 893 3 Engine board KP 864 4 Sensor board KP 574 5 LCD controller board KP 738 6 Engin...

Page 99: ...tor 2 Polygon motor 3 Cooling fan motor 4 Controller unit fan motor Figure 4 3 2 Motors solenoids clutches and others 5 Face up down solenoid 6 MP feed solenoid 7 Middle feed clutch 8 Feed clutch 2 3...

Page 100: ...toner full sensor board KP 766 3 Waste toner full sensor receiver 4 Eraser lamp board KP 752 3 Drum unit and developer Figure 4 3 3 Drum unit and developer 5 Zener board KP 768 6 Toner sensor 7 Toner...

Page 101: ...A7 0 YC05 PDATA7 0 NSELIN PDATA7 0 Option serial I F P1284DIR DTR RTS TXD CTS DSR RXD RSSEL YC09 DBTXD DBRXD DBCLK Debugger connector YC10 TDO TDI TCK TMS HALTN RISC watch connector U13 3 3 V Regulato...

Page 102: ...CLK OPSDO BFANON OPTSDI OPSEL3 5 OPSDI OPRDY SYSRES SDIR VDFON1 PDOUT 20PTRIG SBSY EGIR VDFON1 SCLKIN SOIN OPSEL0 2 FRCS GAINT SYSCLK RESET RESET HEATON AIRTEMP AIRWET WETCK1 WETCK2 FDPFUL EXITPAP FDO...

Page 103: ...oint A is as high as approximately 24 V Difference in the potential at point A where the eraser lamp is normal or not is automatically detected as an error When anomaly is detected with the eraser lam...

Page 104: ...24 V power supply to flow through Q217 Q220 R267 R268 and to the ground Consequently approximately 3 9 V H develops at point A as limited by the combination of R267 R268 and DZ206 This voltage is use...

Page 105: ...s directly fed with AC primary power 220 240 V or 120 V which is supplied from the power supply unit Figure 4 3 9 heater lamp control circuit THERM HEATON THERM THDEAD R219 R217 5V1 5V1 5V1 5V1 5V1 5V...

Page 106: ...amp happens not to switch off the voltage the thermistor gives at pin 6 will become unusually high and as soon as it exceeds the voltage at pin 5 pin 7 of the comparator U205 2 output changes to L lev...

Page 107: ...ill be digital analog converted and input to A D port of CPU CPU then issues signals according to the level of the analog signals The resultant signals are used to monitor the amount of paper in the c...

Page 108: ...ction on the top cover and the paper transfer unit SW703 and SW702 are connected in series to the 24 V power Physically opening the top cover left cover or the paper transfer unit will disconnect the...

Page 109: ...rd Side cover interlock switch SW703 Top cover paper transfer unit interlock switch SW702 24V2 24V1 Side cover Engine gate array U204 Top cover switch SW701 B A C Ready Close top cover Close top cover...

Page 110: ...aper size dial on the paper cassette An analog signal is generated by the combination of the paper size switches which are put in comparison with the voltage paper size table referenced by the paper s...

Page 111: ...14 Paper size detecting circuit Off Off Off 0 V Off Off On 1 94 V Off On Off 1 19 V Off On On 1 58 V Custom Legal Letter On Off Off 0 42 V A4 On Off On 2 28 V A5 On On Off 2 92 V B5 On On On 3 22 V C...

Page 112: ...cross signal generation circuit Power switch Current fuse Noise filter circuit Transformer 24 V DC rectifier smoothing circuit Enargy saving circuit Photo coupler Photo coupler Photo Triac Triac ZCROS...

Page 113: ...output positive voltage circuit RTRCHON MCHON TRCHON TRVSEL3 TRVSEL2 TRVSEL1 HVCLK GND 5V2 HUNIT HANDS 24V2 High voltage board Main charger unit Paper Transfer roller Developer Magnet roller High vol...

Page 114: ...Chapter 5 D i s a s s e m b l y...

Page 115: ...the pickup roller and feed roller 5 13 5 2 7 Removing the MP paper feed unit 5 15 5 2 8 Removing the transfer roller 5 17 5 2 9 Removing the controller unit and the principal circuit boards 5 18 1 Re...

Page 116: ...is removed and the power cord is unplugged from both the power line and the printer 5 1 1 Screw hardware CAUTION When securing a self tapping screws align it with the thread carefully First turn it co...

Page 117: ...magnet roller touch any part in the printer When handling developer use both hands Do not press the bottom of the developer 1 Open the top cover 2 Remove the toner container 3 Disconnect the developer...

Page 118: ...veloper seal it in the protective bag and place it on a flat surface Do not place the developer in a dusty area If you ship the developer pack it in the shipping container specifically supplied with t...

Page 119: ...FS 1900 5 6 5 2 2 Removing the paper transfer unit 1 Draw the paper transfer unit 1 while pressing the buttons in the direction of arrow A Figure 5 2 3 Removing the paper transfer unit A 1...

Page 120: ...5 2 3 Removing the main charger unit 1 Pull the main charger unit 1 upwards while pushing main charger release lever 2 Then pull the main charger unit 1 frontwards Figure 5 2 4 Removing the main charg...

Page 121: ...ng the operator panel and outer covers 1 Removing the operator panel 1 Open the top cover 1 and MP tray 2 2 Unlatch two hooks 3 3 Pull the operator panel 4 towards the front Figure 5 2 5 Removing the...

Page 122: ...face down output tray 1 Open the top cover 1 2 Remove two screws 2 3 Remove the top cover face down output tray 3 while pressing it the direction arrows 4 backwards Figure 5 2 6 Removing the top cove...

Page 123: ...10 3 Removing the right cover 1 Remove the operator panel See page 5 8 2 Unlatch the four snaps 1 and three hooks 2 on the chassis Remove the right cover 3 Figure 5 2 7 Removing the right cover 3 2 2...

Page 124: ...FS 1900 5 11 4 Removing the left cover 1 Unlatch the four snaps 1 and three hooks 2 on the chassis Remove the left cover 3 Figure 5 2 8 Removing the left cover 3 2 2 2 1 1 1 1...

Page 125: ...move the paper cassette and the paper transfer unit See page 5 6 2 Remove the developer unit See page 5 4 3 Remove the waste toner bottle See page 3 7 4 Remove the drum unit 1 while pressing the drum...

Page 126: ...ransfer unit See page 5 6 2 Turn the paper transfer unit 1 over 3 Detach the release holder 2 by sliding it while pressing the projections A 4 Remove the feed roller assembly 3 while pressing it in th...

Page 127: ...ove the pickup roller 6 and the feed roller 7 Figure 5 2 11 Remove the pickup roller and feed roller CAUTION Pickup gear Z32S 8 is installed of the inside the one way clutch 9 When refitting pickup ge...

Page 128: ...feed unit 1 Remove the paper transfer unit See page 5 6 2 Remove the developer See page 5 4 3 Remove three connectors 1 4 Remove the engine relay board 2 while unlatching the latches 3 Figure 5 2 12...

Page 129: ...FS 1900 5 16 5 Pull the MP tray paper feed unit 4 out while unlatching two latches 5 off of points A Figure 5 2 13 Removing the MP paper feed unit 5 4 5 A A...

Page 130: ...ponge surface Oil and dust particles of paper etc on the transfer roller 1 can significantly deteriorate the print quality white spots etc 1 Draw the paper transfer unit from the printer 2 Remove the...

Page 131: ...tray See page 5 9 2 Remove the right and left covers See page 5 10 and 5 11 3 Remove the four connectors 1 from the controller unit 2 left side CAUTION Draw the connector straight to remove If you dr...

Page 132: ...FS 1900 5 19 4 Remove the two connectors 3 from the controller unit 2 right side Figure 5 2 16 Removing the connectors from controller unit right side 3 2 Connector Receptacle...

Page 133: ...FS 1900 5 20 5 Remove three screws 4 6 Remove frame unit 5 while releasing the projections from the catches on the frame unit 5 Figure 5 2 17 Removing the controller unit form the frame unit 4 5 4 4...

Page 134: ...1900 5 21 7 Remove two screws 6 8 Remove the main board 7 9 Remove four screws 8 10 Remove the controller unit lid 9 from the controller unit 2 Figure 5 2 18 Opening the controller unit 6 7 6 2 8 9 8...

Page 135: ...e board and power supply unit 1 Remove and open the controller unit See pages 5 18 2 Remove two connectors 1 from the engine board 2 3 Remove five screws 3 4 Remove the engine board 2 Figure 5 2 19 Re...

Page 136: ...r switch rod 4 6 Remove one screw 5 grounding wire terminal 6 and lock washer 7 7 Remove three screws 8 8 Remove the power supply unit 9 from the power supply unit cover 0 Figure 5 2 20 Removing the p...

Page 137: ...y card is removed or inserted while the printer is on damage could result in the printer s electronics as well as the memory card 1 Turn the power switch off 2 Remove the memory card that may be inser...

Page 138: ...unit 1 Remove the top cover and left covers See pages 5 9 and 5 11 2 Remove the high voltage unit 1 while unlatching two latches 2 3 Remove two connectors 3 from the high voltage unit 1 Figure 5 2 22...

Page 139: ...the receptacle may be damaged 1 Remove the drum unit See page 5 12 2 Remove the high voltage unit See previous page 3 Remove two connectors 1 4 Remove the high voltage unit cover 2 5 Remove the sensor...

Page 140: ...he paper transfer unit See page 5 6 2 Remove the top cover face down output tray See page 5 9 3 Remove the left and right covers See pages 5 10 and 5 11 4 Remove two connectors 1 5 Remove three connec...

Page 141: ...FS 1900 5 28 8 Remove four screws 6 9 Remove the main motor 7 from the drive unit 3 Figure 5 2 25 Removing the main motor 6 7 3 6...

Page 142: ...the fuser unit WARNING The fuser unit is hot after the printer was running Wait until it cools down 1 Remove three connectors 1 2 Remove two screws 2 3 Remove the fuser unit 3 from the frame unit Figu...

Page 143: ...1900 5 30 4 Remove the rear cover 4 and the spring 5 5 Remove the solenoid actuator 6 6 Remove the change guide 7 7 Remove one connector 8 Figure 5 2 27 Removing the rear cover and change guide 8 6 5...

Page 144: ...FS 1900 5 31 8 Remove two screws 9 9 Split the fuser unit 0 Figure 5 2 28 Splitting the fuser unit 9 0 9...

Page 145: ...ntial period of time until it cools down 1 Remove and split the fuser unit See page 5 29 2 Remove the upper exit guide 1 while unlatching three latches 2 3 Remove the exit pulley 3 4 Hold the separato...

Page 146: ...p Finger prints on the heater lamp s outer surface can prevent proper fusing of toner on paper When holding the heater lamp hold the ceramic parts of heater lamp at both ends When refitting the heater...

Page 147: ...f time until it cools down 1 Remove and split the fuser unit See page 5 29 2 Remove the heater lamp See the previous page 3 Remove the separators See page 5 32 4 Pull up both heat R bush 1 and heat L...

Page 148: ...e heater lamp See page 5 33 3 Remove the heat roller See previous page 4 Remove one screw 1 5 Remove the thermistor 2 6 Remove two screws 3 and then remove cord plate 4 7 Remove one screw 5 and the he...

Page 149: ...oller 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 5 29 2 Remove the press roller 1 from t...

Page 150: ...es 5 9 2 Remove two connectors 1 3 Remove four screws 2 4 Remove the laser scanner unit 3 from the frame unit CAUTION When refitting the laser scanner unit fix the four screws in the order indicated a...

Page 151: ...Chapter 6 T r o u b l e s h o o t i n g...

Page 152: ...5 11 4200 Laser scanner unit Pin photo diode sensor error 6 16 12 5300 Eraser lamp error 6 17 13 6000 Fuser unit error 6 18 14 6020 Abnormal high temperature error 6 19 15 6400 Zero cross signal error...

Page 153: ...k printout 6 37 3 Dropouts 6 38 4 Black dots 6 39 5 Black horizontal streaks 6 39 6 Black vertical streaks 6 40 7 Unsharpness 6 41 8 Gray background 6 42 9 Dirt on the top edge or back of the paper 6...

Page 154: ...50 toner kit The message will also be shown if the waste toner box has become full The waste toner box should be replaced when the message display eventually shows Toner low TK 50 See section Toner co...

Page 155: ...r handling appears By pressing the key the paper type setting menu appears After setting the correct paper type press the ENTER key and printing starts There is no paper cassette paper size and paper...

Page 156: ...played by pressing the key See section 6 1 7 Correcting a Paper Jam on page 6 48 There is still paper in the option sorter s tray indicated by when the power was turned on or the sorter s mode was swi...

Page 157: ...B AVMB tray that was specified for output does not contain any jobs or the VMB tray is not being used Confirm the VMB tray If Auto Continue is set to On printing will be automatically resumed after a...

Page 158: ...d The ID entered for a private job or a stored job is not correct Check the ID that is set using the printer driver You have inserted a wrong memory card CompactFlash when the Insert again message was...

Page 159: ...h the requirements See section 1 1 2 Available option memory device on page 1 6 02 The memory card is not installed Check the requirements for using the memory card 04 The capacity of the memory card...

Page 160: ...en in place of and refer to the corresponding description below 01 Abnormal format Try turning the power off and on again 02 RAM DISK mode is Off Turn RAM DISK mode On 04 No disk space Clean up files...

Page 161: ...60 1 0420 Option paper feeder PF 60 communication error Replace engine board KP 864 See page 5 22 Follow installation instruction carefully again R e p l a c e h a r n e s s S02400 Remedy Refer to opt...

Page 162: ...00 between engine board and option unit interface connector Improper connector insertion Defective option duplexer DU 60 Meaning Suggested causes Corrective action Side registration home position erro...

Page 163: ...low Call service 2000 0123456 Yes Yes No No Replace harness S02405 between engine board KP 864 and engine relaly board KP 760 Replace engine relay board KP 760 See page 5 15 OK Remove and check harnes...

Page 164: ...l a c e h a r n e s s S02400 Refer to option paper feeder PF 60 s Service Manual 7 2610 Option paper feeder PF 60 Top paper feed motor error 8 2620 Option paper feeder PF 60 Middle paper feed motor er...

Page 165: ...e page 5 37 Does pin 30 POLRDY of YC206 on engine board goes low after pin 31 POLON of YC206 goes low NOTE Pins of YC206 connector are crowded and tiny When if measuring signal contact measurement pro...

Page 166: ...l 1 1 Pin photo diode sensor board KP 746 detecting horizontal synchronization signal Frequency 2 7 kHz Low level width 1 4 s Harness S02404 scanner unit and engine board KP 864 Engine board KP 864 an...

Page 167: ...f Measure voltage 1 pin ERASEDR of sensor board KP 754 Remedy pins or replace sensor board KP 754 See page 5 26 Replace engine board KP 864 See page 5 22 Replace sensor board KP 754 See page 5 26 Repl...

Page 168: ...P 864 See page 5 22 Replace fuser unit See page 5 29 Open infinite CAUTION Fuser unit is fed directly by AC power from primary circuit on power supply board Be careful with electricshock Fuser unit is...

Page 169: ...k Measure voltage at pin 6 THERM of YC831 on fuser board KP 756 Turn power switch off Turn power switch on More than 3 V DC over 3 seconds NOTE If the problem is not solved by this flow chart replace...

Page 170: ...ness S02416 Between engine board and high voltage unit NOTE If the problem is not solved by this flow chart replace the following items Meaning Suggested causes Corrective action Toner motor is overlo...

Page 171: ...ective option bulk paper stacker HS 8E 19 F0 Main board or LCD controller board error Meaning Suggested causes Corrective action Communication is failed between the LCD controller board KP 738 and the...

Page 172: ...ve action Communication between the engine board and the main board is failed 23 F040 Communication error Defective gate array U02 on the main board Connector failure between the engine board KP 864 a...

Page 173: ...4 See page 5 22 Replace sensor board KP 754 See page 5 26 When paper feed unit close scurely does pin 12 voltage change 0 to 24 V DC Replace sensor board KP 754 See page 5 26 When paper transfer unit...

Page 174: ...ge change 0 to 24 V DC Problem Suggested causes Corrective action Although new waste toner box is installed Check waste toner box is displayed Although waste toner bottle is not installed Ready is dis...

Page 175: ...574 See page 5 26 Replace engine board KP 864 See page 5 22 Problem Suggested causes Corrective action False paper size message display Defective paper size switch Defective sensor board KP 754 Defec...

Page 176: ...nnection of harness S02402 between LCD controller board KP 738 and engine relay board KP 760 Improper connection of harness S02405 between engine board KP 864 and engine relay board KP 760 Broken powe...

Page 177: ...efective engine board KP 864 or power supply unit Reinsert the connector Remove and then check for continuity across the face up down solenoid connector terminals pin 1 and pin 2 pin 3 and pin 2 Remov...

Page 178: ...3 3 V 0 V DC Serial data input signal A7 VSREQ O 0 V 3 3 V DC Vertical synchronized request signal Request Not request B7 SYSRES O 0 V 3 3 V DC System reset signal Reset Not reset A8 GND Signal groun...

Page 179: ...DI I 5 V 0 V DC Pulse Serial communication input signal A20 OP24V O 24 V DC Power supply for option unit B20 OP5V O 5 V DC Power supply for option unit YC202 1 24V2 I 24 V DC Power supply 2 FDPFUL I 0...

Page 180: ...2 I 24 V DC Power supply 7 24V2 I 24 V DC Power supply 8 24V2 I 24 V DC Power supply 9 ERASEDR O 0 V 14 7 V DC Eraser lamp board Turn On Off 10 WTNLED O 0 V 4 3 V DC Waste toner full sensor board ligh...

Page 181: ...lse Toner sensor Toner detecting clock signal 8 HVCLK O 5 V 0 V DC Pulse Developing bias outputclock signal 9 GND Power ground 10 MCHON O 0 V 24 V DC Main charger Output On Off 11 HUNIT I 5 V 0 V DC O...

Page 182: ...Off 6 FPDIR I 3 3 V 0 V DC LCD controller board 7 24V2 O 24 V DC Power supply for engine relay board 8 FPCLK I 3 3 V 0 V DC Pulse Communication data clock signal 9 GND Power Signal ground 10 GND Powe...

Page 183: ...DC Pulse Polygon motor rotation speed control clock signal 30 POLRDY I 0 V 5 V DC Polygon motor start up ready signal Ready Not ready 31 POLON O 0 V 5 V DC Polygon motor drive signal Drive Stop 32 GND...

Page 184: ...ther circuit board refer to section Appendix A Wiring diagram on page A 20 Figure 6 1 1 Assignment of circuit board connector pins Power supply unit Engine board Engine board High voltage unit CN2 YC9...

Page 185: ...k printout See page 6 39 3 Dropouts See page 6 40 5 Black horizontal streaks See page 6 41 7 Unsharpness See page 6 43 8 Gray background See page 6 44 9 Dirt on the top edge or back of the paper See p...

Page 186: ...as output on the high voltage unit This requires removal of the left cover and the test equipment Replace the high voltage unit if high voltage potential is not available on the board See page 5 25 Ch...

Page 187: ...and the drum unit Check the drum bias Make sure the bias from the high voltage unit correctly arrives at the drum unit Check high voltage potential at the high voltage unit Check the high voltage outp...

Page 188: ...be the damaged fuser unit Replace the press roller or heat roller See page 5 34 or 5 36 Check paper property Paper with rugged surface or dump tends to cause dropouts Replace paper with the one that s...

Page 189: ...ccur at random intervals the toner may be leaking from the developer and drum unit Replace the developer and drum unit See page 5 4 and 5 12 5 Black horizontal streaks Check the drum unit s ground The...

Page 190: ...n and out several times See page 3 9 Check the drum surface for a streak of toner laying lengthwise A streak of toner remaining on drum after printing means that the cleaning blade in the drum unit is...

Page 191: ...er roller if necessary See page 5 17 Check the transfer bias potential Check the transfer bias output on the high voltage unit This requires removal of the left cover and the test equipment Replace th...

Page 192: ...depending on production lots Measurement is possible only by using the jig and tool specifically designed for this purpose The drum unit will have to be replaced if it bears values far out of the allo...

Page 193: ...ch parts as the paper chute paper transportation paths the bottom of the drum and developer and the fuser unit inlet Clean these areas and parts to remove toner Check the transfer roller If the transf...

Page 194: ...tion Replace the laser scanner unit Defective polygon motor in the laser scanner unit Replace the laser scanner unit See page 5 37 Replace the engine board Defective engine controller circuit in the e...

Page 195: ...will help locating the roller etc which has the cause for these defects See the above section for details Figure 6 1 2 Repetitive defects gauge First occurrence of defect 39 mm Developing roller Deve...

Page 196: ...over or the paper transfer unit While the paper jam message is displayed press the key A on line help message appears 1 Jam in the rear cover 1 While pulling the paper transfer unit release lever 1 pu...

Page 197: ...ver pull out the paper transfer unit See previous page 2 If paper is jammed before the registration roller remove it as shown figure 6 1 5 If paper jammed under the registration roller remove it as sh...

Page 198: ...Appendix A D i a g r a m s...

Page 199: ...A 4 Cassette feeding two legal size papers face down tray output A 5 Option paper feeder cassette feeding two A4 size papers face down tray output A 6 MP tray feeding two A4 size papers face down tra...

Page 200: ...282 1711 4182 6225 7265 0 1 2 3 4 5 6 7 8 9 10 11 12 13 5708 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch FE...

Page 201: ...375 1873 4118 6318 7206 0 1 2 3 4 5 6 7 8 9 10 11 12 13 7 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch FEDDR...

Page 202: ...938 1879 4689 6882 8430 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch FEDD...

Page 203: ...OR 2463 3282 6056 6451 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Paper feed clutch Paper feed motor MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch...

Page 204: ...00 5744 0 1 2 3 4 5 6 7 8 9 10 11 12 13 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch MPFSOL MP feed solenoid...

Page 205: ...1 2 3 4 5 6 7 8 9 10 11 12 13 8715 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch MPFSOL MP feed solenoid LAS...

Page 206: ...8 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 MMOTON Main motor MCHON Main charger TRCHON Transfer charger RTRCHON Transfer charger MIDDR Millde feed clutch REGDR Registration clutch MPFSOL MP feed solenoid LA...

Page 207: ...SEL2 24V1 24V1 24V1 24V2 24V2 24V2 ERASEDR WTNLED TNRFUL 5V2 GND EEDIO EECLK REGPAP PVOLAN1 TCPVP FCPVP CASIZE PVOLAN2 Sensor board KP 754 4 3 2 1 N C GND ERASEDR N C GND WTNLED EECLK TNRFUL EEDIO N C...

Page 208: ...Appendix B S t a t u s P a g e...

Page 209: ...Appendix B Contents Status page B 3 Printing the service status page B 3 Service information on the status page B 4 Details of service information B 4...

Page 210: ...Information on the service page include various settings for the printer service statistics etc To print a service status page proceed as follows Printing the service status page To print a service s...

Page 211: ...Controller firmware version Service information Service information Firmware version 84 00 01 Released 28 Sep 2001 Released date of the firmware 0A00 0003 C1 32 00 17 05 Total page 9690 t P00 S00 F00...

Page 212: ...type and the asterisk is mask type 0A00 0003 C1 32 00 17 05 Total page 9690 t P00 S00 F00 N00 D10 DM0301 DAN 0020 0020 1061 0811 0 0 0 0 0 0 0 AAAAAA AAAAAA AAAAAA AAAAAA AAAAAA AAAAAA AAAAAA 003D 00...

Page 213: ...NoECPcommunication 1 ECP communication had occurred at least once bit 0 to 5 History of printer parallel port directional communication 05 Nibble High speed 07 ECP 00 Normal bit 0 Framing error bit 1...

Page 214: ...paper feeder Bulk paper stacker Sorter bit0 Top paper feeder bit1 Middle feeder bit2 Bottom feeder bit3 Duplexer bit4 Sorter bit5 Bulk paper feeder bit6 Bulk paper stacker bit7 Drum unit RS2 RS 232C R...

Page 215: ...Appendix C I n t e r f a c e...

Page 216: ...pin assignment C 4 Parallel interface signals C 5 USB interface C 6 USB interface pin assignment C 6 Serial interface option C 7 RS 232C interface voltage levels C 7 Connector configurations C 7 Proto...

Page 217: ...by commanding Prescribe commands on a PC Selecting the parallel interface mode To change the parallel interface mode a PC running MS DOS is needed Connect the printer to the PC via the parallel interf...

Page 218: ...ata5 PAD4 24 Ground GND 7 Data6 PAD5 25 Ground GND 8 Data7 PAD6 26 Ground GND 9 Data8 PAD7 27 Ground GND 10 nAck ACKOUT 28 Ground GND 11 Busy BUSYOUT 29 Ground GND 12 PError PERROR 30 Ground GND 13 Se...

Page 219: ...nless enabled by the FRPO command O2 parameter This signal is used in the Epson version of the Centronics interface to receive a carriage return In high speed mode it is used as an interrupt This line...

Page 220: ...Connectors Printer B type receptacle female with upstream port Cable B type plug male Cable Use shielded cable that complies with the USB Revision 1 1 standards and not longer than 5 meters 16 feet T...

Page 221: ...line It is held high above 3 V when the buffer can accept more data Serial interface option This printer is supported protocol of RS 232C serial interface and printer is equipped a connector YC5 A on...

Page 222: ...s User s Manual RS 232C For computers with a DB 9 connector RXD TXD DTR GND DSR RTS CTS TXD RXD RTS CTS DSR SG DTR 2 3 4 5 6 7 8 2 3 4 5 6 7 Computer serial port DB 9 Serial interface board IB 10E con...

Page 223: ...Japan Phone 06 6764 3555 KYOCERA MITA EUROPE B V Hoeksteen 40 2132 MS Hoofddorp The Netherlands Phone 020 6540000 Home page http www kyoceramita europe com Email info kyoceramita europe com KYOCERA M...

Page 224: ...is 60179 TEL 630 238 9982 FAX 630 238 9487 Western Region 14101 Alton Parkway Irvine California 92618 7006 TEL 949 457 9000 FAX 949 457 9119 Southeastern Region 1500 Oakbrook Drive Norcross Georgia 30...

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