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2.1.1.1 Charging Process

In the charging process, the high voltage unit applies negative DC voltage as the bias voltage to the
rayon charging brush. Then, the PC drum is evenly charged with the negative electric charge
applied from the charging brush.

DC bias

–1150 V

Charging Brush

PC Drum

PC Drum Ground

Charge Bias:-1150V (DC)

Figure 2-2. Charging Process

Operating Principles

EPL-N2000 Service Manual

2-2

Rev.A

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Summary of Contents for EPL-N2000

Page 1: ...EPSON TERMINAL PRINTER EPL N2000 SERVICE MANUAL EPSON 4006861 ...

Page 2: ...e been made to ensure the accuracy of the contents of this manual However should any errors be detected SEIKO EPSON would greatly appreciate being informed of them The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences thereof Epson is a resistoered trademark of Seiko Epson Corporation Generall respective companies Copyright 1996 by SEI...

Page 3: ...DO NOT CONNECT THE UNIT TO A POWER SOURCE UNIT INSTRUCTED TO DO SO WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS WARNING 1 REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN 2 MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE LISTED ON THE SERIAL NUMBER RATIG PL...

Page 4: ...ry for products marketed in the United States The label shown below indicates compliance with the CDRH regulations and must be attached to laser products marketed in the United States WARNING Use of controls adjustments or performance of procedures other 1 than those specified in this manual may result in hazardous radiation exposure Internal Laser Radiation Maximum Radiation Power 5 0 x 1o 4 W Wa...

Page 5: ...seen VARNING Osynlig laserstralning nar denna de1 ar Bppnad och sparren ar urkopplad Betrakta ei stralen For Norway Users ADVARSEL Dersom apparatet brukes pa annen mate enn spesifisert i denne bruksan visning kan brukeren utsettes for unsynlig laserstrdling som over rider gren sen for laser klasse 1 Dette er en halvleder laser Maksimal effeckt til laserdiode er 5 0 x lo W og bolgelengde er 790 20 ...

Page 6: ...orway I CALITION INVISIBLE LASER RADIATION WHEN OPEN AVOID X GSURE TO SEAM vORSlCHT IJNSlCnTBARE IASE LUNG WENN ASDECKUNG GEOFFNET NlCHl DEM SlRAHL AUSSEIZEN ADVAflSEL USYNUG IASERSTliUNG N l DEKSEL iPNES UNNGA EKSPONERlNG FGR STRhN 1 II VAROL AVAlTAESSA OLET ALTTIINA NhWMihN blSEFt SbElLYUT h 6 KATSO SbEESEEN ADVARSEL USYNUG LASERStiNG VED hMNG UNDGA UDS E FOR Sl lNG VARNING OSVNIJG IASERSdLNlNG ...

Page 7: ...en VARNING Osynlig laserstralning nar denna de1 ar Bppnad och sparren ar urkopplad Betrakta ei stralen For Norway Users ADVARSEL Dersom apparatet brukes pa annen mate enn spesifisert i denne bruksan visning kan brukeren utsettes for unsynlig laserstrdling som over rider gren sen for laser klasse 1 Dette er en halvleder laser Maksimal effeckt til laserdiode er 5 0 x lo W og bolgelengde er 790 20 nm...

Page 8: ...REVISION SHEET Revision Rev A Issued Date November 17 1996 Revision P a g e 1st issued ...

Page 9: ...TABLE OF CONTENTS CHAPTER 1 CHAPTER 2 CHAPTER 3 CHAPTER 4 CHAPTER 5 CHAPTER 6 APPENDIX GENERAL DESCRIPTION OPERATION PRINCIPLES DISASSEMBLY AND ASSEMBLY ADJUSTMENTS TROUBLESHOOTING MAINTENANCE ...

Page 10: ...lel Interface C Type Specifications 1 22 1 3 1 3 Network Interface 1 23 1 3 2 Serial Interface Specifications 1 24 1 3 3 Optional LocalTalk Interface 1 26 1 4 OPERATING INSTRUCTIONS 1 27 1 4 1 Control Panel 1 27 1 4 2 Panel Setting 1 29 1 4 3 Service Mode 1 36 1 4 3 1 Hexadecimal Dump Mode 1 36 1 4 3 2 EEPROM Initialize Mode 1 36 1 4 3 3 Formatting Flash Card 1 36 1 4 3 4 Page Counter Clearance 1 ...

Page 11: ... 3 Space Requirements 1 9 Figure 1 4 Timing Chart 1 17 Figure 1 5 Operation Panel 1 27 Figure 1 6 Interface Port Fixed Mode 1 50 Figure 1 7 Interface Auto Sense Mode 1 50 Figure 1 8 BiRITech Function 1 51 Figure 1 9 Toner Saver Mode 1 52 Figure 1 10 Main Component Layout 1 53 Figure 1 11 C207 MAIN Board 1 54 Figure 1 12 PWB A Board 1 55 Figure 1 13 PWB E Board 1 55 Figure 1 14 PWB F Board 1 56 Fig...

Page 12: ... 1 11 Differences between LJ4 GL 2 Mode and GL like Mode 1 14 Table 1 12 Built in Fonts 1 15 Table 1 13 Timing in Compatibility Mode 1 18 Table 1 14 Pin Assignments for Parallel B Type I F 1 18 Table 1 15 Pin Assignments for Parallel C Type I F 1 22 Table 1 16 Pin Assignments for RJ 45 1 23 Table 1 17 Serial Interface Pin Assignments 1 24 Table 1 18 LocalTalk Interface Pin Assignments 1 26 Table 1...

Page 13: ... speed 20 ppm in single sided print mode for A4 or letter size paper Integrated imaging cartridge Provides long cartridge life 10 000 sheets and easy user maintenance Optional duplex print Ozone Printing process creates no ozone gas High capacity output tray Face down exit tray holds up to 500 sheets 2 optional paper cassettes for the lower paper cassettes unit 500 sheet cassette for A4 or letter ...

Page 14: ...3602 C836031 See Note 2 C836041 See Notes 2 and 3 C836051 See Note 2 C836061 See Notes 2 and 3 C83615 See Note 4 Interface Cable 0 4 m 1 3 C836141 See Note 5 Notes 1 Can be used in HP GL 2 and ESC P 2 modes 2 Can be used only when 32KB serial interface is used 3 Can be used in combination with interface cable C836141 with the serial interface mode for the LocalTalk Serial Module 4 Can be used when...

Page 15: ...C82324 NetWare C82328 Fax Imaging Cartridge S051035 250 Sheet Paper Cassette A3 Universal C81269 500 Sheet Paper Cassette A4 C81264 500 Sheet Paper Tray LT C81265 250 Sheet Paper Tray A3 Universal C81270 500 Sheet Paper Tray A4 C81266 500 sheet Paper Tray LT C81267 duplex Unit C81268 The asterisk is a substitution for the last digit of the product number which varies by country 1 for EAI 2 for the...

Page 16: ... Size 1 Capacity Usage Thickness Ream Weight MP Tray Universal A3 A3 B4 F4 A4 L B5 L l B5 L A5 L Ledger Legal GLG Letter L GLT L Executive L HLT L 200 2 Standard 60 to 135 g m2 16 to 36 lb Thick paper 90 to 157 g m2 24 to 42 lb Special Labels papers transparencies Envelopes Monarch C10 DL C5 C6 1 10 Standard paper 60 to 105 g m2 16 to 28 lb Standard lower cassette unit A4 letter cassette GLG LGL B...

Page 17: ... L L L B5 3 182 x 257 mm L L L l B5 3 176 X 250 mm L L L A5 148 x 210 mm L L L Ledger 11 X 17 P P P Legal 8 5 X 14 P P P GLG 8 5 X 13 P P P Letter 8 5 X 11 L L L L GLT 8 X 10 5 L L L Executive 7 25 X 10 5 L L L HLT 5 5 X 8 5 L L L Monarch 3 7 8 X7 1 2 P C 10 4 1 8 x9 1 2 P DL 110 X 220 mm P C5 162 X 229 mm P C6 114 X 162 mm P 1 P Portrait orientation L Landscape orientation 2 Only standard size pa...

Page 18: ...lb Parchment Deed 13C 20 lb Neenah Bond 20 lb Gilbert 20 lb Transparency OHP 3M PP2500 Table 1 5 Usability of Special Papers Feeding Source Standard Paper Normal Paper Special Papers OHP Envelopes Labels MP tray RF R P Lower paper cassette RF R N Universal cassette 250 sheets RF R N A4 letter cassette 500 sheets RF R N Duplex unit RF R N RF Reliable feeding and good image quality R Reliable feedin...

Page 19: ... 100 V Version 120 V Version 200 V Series Rated Voltage 90 V to 110 V 100 V 10 108 V to 132 V 120 V 10 207 V to 253 230 V 10 Rated Frequency Range 50 60 Hz 3 Hz Power Consumption Less than 790 W Less than 45 W in energy saver mode Current Consumption Less than 8 A at rated voltage Less than 7 A at rated voltage Less than 5 A at rated voltage Printable Area 4 mm 4 mm 4 mm 4 mm A B Paper transprt Di...

Page 20: ...n 1C 1C 1 corner bent by 1 mm or less Note Statistics above only apply to newly unpacked paper Print Position Refer to Figure 1 2 Single sided print Main scan direction Standard position C 2 0 mm Sub scan direction Standard position A 2 5 mm Duplex print Main scan direction Standard position C 3 0 mm Sub scan direction Standard position A 2 5 mm Paper curl height 30 mm or less MTTR mean time to re...

Page 21: ...x or less must not be exposed to direct sunlight Surrounding space required See Figure 1 3 200 mm 8 400 mm 16 200 mm 8 970 mm 40 Leave 880 mm in height including 400 mm for opening the top cover An additional 94 mm in height is needed when installing the optional cassette unit With the universal cassette 200 mm 8 With the duplex unit 180 mm 7 Without the duplex unit Figure 1 3 Space Requirements E...

Page 22: ...Normal over full storage life 30 to 85 RH Extremes 1 3 of the full storage life High 85 to 95 RH Low 10 to 30 RH Atmospheric Pressure 61 3 to 101 3K Pa 460 to 760 mm Hg 1 Without Imaging cartridge Resistance to vibration including consumables Vibration frequency 5 to 100 Hz 100 to 5 Hz Acceleration 1 G Transportation time 10 minutes 1 way Accelaration directions 3 directions Acceleration duration ...

Page 23: ...ation Storage life 18 months after production packed Temperature Normal over full storage life 0 to 35o C 32 to 95 F Extremes 1 3 of the full storage life High 35 to 40o C 95 to 104 F 1 Low 20 to 0o C 4 to 32 F Change range per hour Less than 10o C 18 F Humidity Normal over full storage life 30 to 85 RH Extremes 1 3 of the full storage life High 85 to 95 RH Low 10 to 30 RH Atmospheric Pressure 74 ...

Page 24: ... Height 561 402 408 mm 22 16 16 Without optional lower cassette unit 561 402 508 3 mm 22 16 20 With optional lower cassette unit Weight Approximately 24 kg 53 lb Consumables and options excluded 1 2 9 Process Specifications Printing system Electrostatic and dry electrophotographic process Exposing source Semi conductor laser beam scanning system Exposed object OPC drum Organic Photo Conductor Char...

Page 25: ...EPSON GL 2 mode which emulates the GL 2 mode in the HP LaserJet 4 emulation has 2 modes LJ4 GL2 mode and GL like mode LJ4 GL2 mode Used to print with software that supports the HP 7600 series electrostatic plotter It emulates GL 2 mode in the HP LaserJet 4 emulation In EPSON GL 2 mode however the operator can reach some parameters with SelecType without sending commands GL like mode Used to print ...

Page 26: ...e Inside the picture frame Undefined Command The first character discarded Both of 2 characters discarded CS CA Command Unsupported Supported Not fully compatible with the HP GL mode Procedure for omission of 2nd parameter of the DT command No terminator plotted Terminator plotted Default value for number of pens 2 8 can be set by sending a command 1 2 12 Fonts Specifications Built in fonts Scalab...

Page 27: ...alic SWC Original Garamond Bold Italic SWC Audrey Two SWC Flareserif 821 SWC Flareserif 821 Extra Bold SWC Swiss 721 Roman SWM Swiss 721 Bold SWM Swiss 721 Oblique SWM Swiss 721 Bold Oblique SWM Dutch 801 Roman SWM Dutch 801 Bold SWM Dutch 801 Italic SWM Dutch 801 Bold Italic SWM Symbol Set SWA More WingBats SWM Courier SWC Courier Bold SWC Courier Italic SWC Courier Bold Italic SWC Letter Gothic ...

Page 28: ...s of the Roman 8 set Norweg 1 Italian Swedish ANSI ASCII UK French German Spanish Norweg2 French2 29HP German JIS ASCII HP Spanish Chinese IRV Swedish2 Portuguese IBM Portuguese IBM Spanish In ESC P 2 or FX Modes 9 Symbol Sets and 15 International Character Sets PC437 USA standard Europe PC850 Multilingual PC860 Portuguese PC863 Canadian French PC865 Norwegian PC857 PcTurk2 PC852 East Europe BRASC...

Page 29: ... B I F Board C82331 The asterisk is a substitution for the last digit which varies by the country 1 For EAI 2 For the areas other than EAI 1 3 1 Parallel Interface Specifications 1 3 1 1 Parallel Interface B Type Specifications Type Bidirectional Parallel I F IEEE 1284 Operation modes Compatibility mode Nibble mode ECP mode Byte mode and EPP mode are not supported Data transmission system STROBE s...

Page 30: ...signal output valid 0 5 µs 12 PE or ERRX to ACKX 2 ms 13 STROBEX to ACKX 0 s 1 Signals ending in X are Active LOW 2 SE specification Table 1 14 Pin Assignments for Parallel B Type I F Pin Compatibility Mode Nibble Mode ECP Mode I O 1 nStrobe HostClk I 2 to 9 DATA 1 to DATA 8 I O 10 nAcknlg PtrCLK PeriphClk O 11 Busy PtrBusy PeriphAck O 12 PError AckDataReq nAckReverse O 13 Select Xflag O 14 nAutof...

Page 31: ...channel data Negotiation phase Extensibility request value Nibble mode Not used ECP mode Bidirectional data or address Acknlg out Compatible mode An acknowledge pulse that indicates that data from the host computer has been received SE specification This signal is always output along with the Busy signal Strobe is independent of these signals Negotiation phase Indicates that IEEE 1284 is supported...

Page 32: ... Compatibility mode Always HIGH Negotiation phase Xflag indicates Extensibility flag It is used in response to extensibility request value from the host computer Reverse data transfer phase Nibble data bit is 1 then 5 in nibble mode Reverse idle phase Same as negotiation phase ECP mode Same as negotiation phase AutoX in Compatible mode Not used Negotiation phase This signal goes HIGH and IEEE 1284...

Page 33: ...hase Set to LOW to indicate data to be sent to the host is ready in nibble mode Reverse idle phase Indicates whether or not data is valid ECP mode Goes LOW when requesting transmission with the host computer Effective both in forward and reverse channel Slctin Compatible mode Always LOW Negotiation phase Set to HIGH while HostBusy is LOW to request 1284 mode Reverse data transfer phase Set to HIGH...

Page 34: ...meters 10 or less Signal timing Same as B type Table 1 15 Pin Assignments for Parallel C Type I F Pin Compatibility Mode Nibble Mode ECP Mode I O 1 BUSY PtrBusy PeriphAck O 2 Slctout Xflag O 3 nAcknlg PtrClk PeriphClk O 4 nFault nDataAvial nPeriphReq O 5 PError AckDataReq nAckReverse O 6 to 13 DATA 1 to DATA 8 I O 14 nInit nReverseRequest I 15 nStrobe HostClk I 16 nSelectIn ReverseReq I 17 Autofee...

Page 35: ...NC X 1 10Base 2 Applicable Cable 2 pair Category 3 or 4 or 5 UTP 10Base T RG 58A U 10Base 2 RG 58C U 10Base 2 RG 58 U 10Base 2 The asterisk is a substitution for the last digit which varies by the country 1 For EAI 2 For the areas other than EAI Table 1 16 Pin Assignments for the RJ 45 Connector Pin No Signal Name I O 1 Tx O 2 Tx O 3 Rx I 4 NC 5 NC 6 Rx I 7 NC 8 NC EPL N2000 Service Manual Product...

Page 36: ...RXD I Signal descriptions DTR Signal output by the printer When the DTR signal is HIGH the printer can receive the RXD signal When the SelecType settings do not specify DTR control the signal level remains HIGH while printer power is on When SelecType is used for DTR control DTR goes LOW for any error condition Data RXD from the host computer must be stopped within 128 characters after DTR goes LO...

Page 37: ...ins HIGH when SelecType is set to OFF for DTR control The printer sends only TXD off when the DSR signal is HIGH DSR signal is always assumed HIGH when select mode for DSR is set to OFF X ON X OFF transmission is independent of DSR X ON X OFF DC1 DC3 protocol Select mode is used to execute X ON X OFF protocol The X OFF DC3 code transmitted by error detection warns the host computer to stop sending...

Page 38: ...ter transmits data through TXD while CTS is HIGH 3 TXD OUT Serial ASCII data output from the printer At a HIGH level when SD voltage is higher than SD voltage At a LOW level when SD voltage is less than SD voltage Logic 0 is SPACE and logic 1 is MARK The state must be maintained between transmitted character codes 4 GND Ground 5 RXD IN Serial ASCII data input from computer At a HIGH level when RD ...

Page 39: ...urce Specifies the paper tray used to feed paper Page Size Specifies the size of the image to be formed Manual Feed Turns manual feed on and off Orientation Specifies the printing orientation portrait or landscape 3 One Touch Mode LED 2 Settings described below are available when this light is ON BiRITech Sets BiRITech mode Copies Specifies the number of pages to be duplicated MP Tray Size Specifi...

Page 40: ...available for the menu indicated above the button Press the SelecType Alt button while holding down the Menu button 9 Item SelecType Mode Used to choose an item in the menu selected Press repeatedly until the item to be selected is indicated on LCD To scroll back to the previous menu press the SelecType Alt button while holding down the Menu button One Touch Mode Used to select a setting available...

Page 41: ...le print mode 15 On Line If this button is pressed when On Line LED is ON Single sided print The printer goes off line immediately and the page in process is ejected Duplex print The printer goes off line after printing both sides of one sheet or two sheets maximum The printer goes on line if this button is pressed when it s off line 1 4 2 Panel Settings This printer has two panel setting modes On...

Page 42: ...12 FX 1239X AUX 6 Same as parallel B ETHERNET Same as parallel B PRINTING MENU PAPER SOURCE Auto MP LC1 LC2 3 PAGE SIZE A4 4 A3 A5 B4 B5 LT 5 HLT LGL GLT GLG B EXE F4 MON C10 DL C5 C6 IB5 CTM A3 ORIENTATION Port Land COPIES 1 to 999 MANUAL FEED OFF ON RESOLUTION 600 300 DUPLEX 16 OFF ON BINDING 16 Long Edge Short Edge START PAGE 16 Front Back TRAY SIZE MENU MP TRAY SIZE A4 4 A3 A5 B4 B5 LT 5 HLT L...

Page 43: ...c SET UP MENU INTERFACE Auto Parallel B Parallel C Serial L T 15 AUX 6 TIMEOUT 5 to 60 to 300 STND BY Enable Disable LANG LANG SPRACHE LINGUA LENG SPRK SPROG TAAL LANG LING LANG English Franais Deutch Italiano Espaol Svenska Dansk Nederi Suomi Portugus Option 1 to 8 13 PANEL LOCK 17 Off On PRINTER NAME Off On TONER 14 PAGE COUNT 14 0 to 99999999 SelecType INIT PARALLEL B MENU SPEED Fast Normal BI ...

Page 44: ...mati VeUS MsPublishin Math 8 PsMath VeMath PiFont Legal UK ANSI ASCII Swedish2 Italian Spanish German Norweg1 French2 Windows Pclcelandic 9 PcLt774 9 PcTurk1 9 PcPortugues 9 PcEt850 9 PcTurk2 9 PcCanFrench 9 PcS1437 9 OcNordic 9 8859 3 ISO 9 8859 4 ISO 9 WiBaltic 9 WiEstonian 9 WiLatvian 9 Mazowia 9 CodeMJK 9 BpBRASCII 9 BpAbicomb 9 PcGK437 9 PcGK851 9 PcGK869 9 8859 7 ISO 9 WiGreek 9 Europe3 9 Pc...

Page 45: ... steps of 0 05 mm ESC P 2 FONT Courier Roman Sans serif Prestige RomanT SansH Script OCR B PITCH 10 cpi 12 cpi 15 cpi Prop CONDENSED Off On T MARGIN 0 40 to 0 50 to 1 50 inch in steps of 0 05 inch TEXT 1 to 62 to 66 6 to available Maximum 111 lines CGTABLE Pc USA Italic PcMultilin PcPortugues PcCanFrenc PcNordic PcTurkish2 Pc E Europe BpBRASCII BpAbicomp PcS1437 14 PcTurkish1 14 Pclcelandic 14 885...

Page 46: ...OUNTRY USA France Germany UK Denmark Sweden Italy Spain1 Japan Norway Denmark2 Spain2 LatinAmeric AUTO CR ON OFF AUTO LF ON OFF ZERO CHAR 0 Ø BIT IMAGE Dark Light BarCode I239X FONT Courier Prestage Gothic Orator Script Presentor Sans serif PITCH 10 cpi 12 cpi 15 cpi 17 cpi 20 cpi 24 cpi Prop CODE PAGE 437 850 860 863 865 T MARGIN 0 30 to 0 40 to 1 50 inch in steps of 0 05 inch TEXT 1 to 63 5 to 6...

Page 47: ... on LCD When NLSP Font ROM or ROM SIMM in use has no status sheet resource on it no option is given English is used to indicate items and values in SelecType mode 14 Total number of sheets printed is indicated and no selection can be made for this item 15 Appears when the optional LocalTalk with serial interface is installed in LocalTalk interface mode 16 Appears when the optional duplex unit is i...

Page 48: ...e EEPROM initialize operations are required only when the main board or EEPROM is replaced or when these operations are specified in this manual Buttons On Line Continue Menu with Power Switch On Indication on LCD Format Nvram Function Resets all user settings to the factory default settings and clears the printer status information page counter and jam counter 1 4 3 3 Format Flash Card Buttons Se...

Page 49: ...Type mode is not valid until current the job is complete To make a new setting take immediate effect perform a reset or warm boot However this clears all print data Warming Up The printer is warming up Standby The printer is in energy saver status Ready The printer is ready to receive new data Writing Card The printer is storing data to the PCMCIA card Be sure to avoid turning off the printer off ...

Page 50: ... cover Check Duplex P Size Status SelecType Size Ignore OFF in the Config menu The size of the paper loaded does not match the page size selected LED On Line OFF Continue OFF Form Feed Keeps the same status as before Measure 1 Place the selected paper size in the paper cassette 2 Open the top cover or duplex cover to remove the paper 3 Close the cover Then the printer automatically resumes printin...

Page 51: ...n Duplex Staus A paper jam has occured in the duplex unit LED On Line OFF Continue OFF Form Feed Keeps the same status as before Measure 1 Open the cover of the duplex unit and remove the paper 2 Close the cover Then the printer automatically resumes printing of the jammed page after warming up Paper is loaded from the same paper entrance Printer Open Staus The top cover is open LED On Line OFF Co...

Page 52: ...n the selected paper source does not match the size specified 3 Perform a reset or warm boot Paper Out aaaaa bbbbb 1 Status This error can be caused by any of the problems listed below 1 There is no paper loaded in the paper source indicated by aaaaa 2 2 No paper is loaded in any paper source SelecType Manual Feed OFF The actual message for aaaa is the paper source from which paper was fed in the ...

Page 53: ...bbbb Staus SelecType Size Ignore OFF Paper loaded in paper source aaaa does not match the selected page size LED On Line OFF Size Ignore OFF ON Size Ignore ON Continue Flashing Form Feed Keeps the same status as before Measure SelecType Auto Cont OFF in the Config menu The error is cleared with either of the following methods 1 Press the Continue button after inserting the bbbb size paper into the...

Page 54: ... of a duplex page both sides are reprinted 2 Perform reset or warm boot SelecType Auto Cont ON in the Config menu 3 The error is cleared automatically after a specific amount of time If there is still memory left the printer resumes printing on the page containing the error using the memory left This is only attempted once and if the same error occurs the printer omits the page with the error and ...

Page 55: ...he memory used for fonts is too large In such a case turn off the printer and remove one of the above devices Duplex Mem Overflow Status In duplex printing mode there was not enough memory left for the data on the reverse side of the sheet The paper was ejected after the first side was printed Then an error message was indicated LED On Line OFF Continue Flashing Form Feed Keeps the same status as ...

Page 56: ... available LED On Line OFF Continue OFF Form Feed Keeps the same status as before Measure Turn off the printer and remove the LocalTlk Serial module Write Error Card Status This error can be caused by any of 3 situations described below 1 No data can be written onto the card 2 Writing is not completed properly 3 The card is not inserted LED On Line OFF Continue OFF Form Feed Keeps the same status ...

Page 57: ...n 2 Remove the IC card with the printer on to make the Continue LED flash Then press the Continue button while the Continue LED is flashing The printer automatically returns to normal status 3 Perform a Warm boot Change Card Battery Status Backup battery life on the PCMCIA card has ended LED On Line OFF Continue OFF Form Feed Keeps the same status as before Measure Turn off the printer and remove ...

Page 58: ...e 1 Press the Continue button to clear the warning 2 Replace the toner cartridge with a new one Card Battery Low Status A backup battery in a PCMCIA card is low LED On Line Continue Form Feed Keeps the same status as before Measure Replace the backup battery with a new one Check Paper Size Status Size Ignore OFF in Config menu This warning is given when the size of the paper loaded and the selecte...

Page 59: ...ndicated under any of the circumstances described below 1 Menu Item Value and Enter buttons are pressed in One Touch mode 2 Enter switch is pressed in SelecType mode LED On Line Continue Form Feed Keeps the same status as before Measure Press any of the switches Duplex Print Was Off Status In duplex mode the printer discontinues printing and indicates this message under any of the circumstances de...

Page 60: ...atus as before Measure 1 Clear the message by pressing Continue switch 2 Turn off the printer and remove the card Format Error SIMM Status Data can be written onto the SIMM installed but the SIMM hasn t been formatted This message can be ignored when the SIMM is new If the SIMM however has already data stored the SIMM is under either of following conditions 1 Data wasn t written properly 2 The mem...

Page 61: ... to be recovered by a qualified service person Table 1 25 describes the indications on LCD For code descriptions refer to Chapter 5 Table 1 24 Service Call Error Messages Service Call Error Messages Service Req effff Status The printer detects an error that may not be recovered by end users e Error Type Codes E Error related to the engine C Error related to the controller ffff Error code Refer to ...

Page 62: ...l that receives data first will print first Each interface has its own values that are selected through SelecType User 1 User 2 User 3 User 4 Parallel I F B type Parallel I F C type Type B I F LocalTalk Ethernet Input Buffer Print Interface environment Parallel B Parallel C LocalTalk Serial Module Serial Module Type B I F Ethernet Figure 1 6 Interface Port Fixed Mode Host A Host B Host C Host D Ho...

Page 63: ... s original EJL This system allows users to access printer setting modes through commands sent by the computer This mode is especially beneficial to users who operate printers through the network 1 4 8 BiRITech Bi Resolution Improvement Technology This printer has BiRITech which is used to smooth out jagged edges of lines or shapes The resolution with this technology has been improved to control d...

Page 64: ...s Use of this mode however is limited to output that does not require good print quality Table 1 25 Toner Saver Mode Toner Saver Mode Edge Reinforcement Halftone Full Black Off All edges Full black On Upper and right edge 1 Halftone made of 2 dots out of 4 X 4 dots 1 Toward the orientation in which image is laid regardless of the direction paper is fed 1 4 11 Precaution for Power Off This printer ...

Page 65: ...board Engine controller circuit board PWB E board Power supply unit PWB F board High voltage supply unit Print head unit assembly Fusing unit Transfer unit Paper takeup roller unit Registration roller unit Drive unit Imaging cartridge Cassette unit Lower cassette unit Fusing Unit PWB F Optical Unit PWB E PWB A C207 MAIN Control Panel Figure 1 10 Main Component Layout EPL N2000 Service Manual Produ...

Page 66: ...or IC card slot IC1 IC28 IC29 IC20 IC39 IC6 IC5 IC15 IC16 IC37 Connector E05B27BA E05B27BA IOC 2 IOC 2 MB86936 GG46833 RIT4 Plus 4 M Bit DRAM Option 8M Bit ROM 16 M Bit DRAM ROM Slot RAM SIMM Module MASK ROM FONT ROM EEPROM 93C86 SLAM PIC E05B29 RISC CPU RAM SIMM Module E05B28 IC9 IC10 IC11 IC12 IC38 Figure 1 11 C207 MAIN Board Product Description EPL N2000 Service Manual 1 54 Rev A ...

Page 67: ...oard PWB E board is the power supply board which converts the AC line voltage into 24 and 5 VDC voltages This board also supplies AC line voltage to the fusing unit to heat the heater lamp Never touch variable volumes RV1 and RV2 They are for factory use only Figure 1 12 PWB A Board Figure 1 13 PWB E Board CAUTION EPL N2000 Service Manual Product Description Rev A 1 55 ...

Page 68: ...m charge bias and image transfer bias Never touch variable volumes VR1 VR2 VR3 VR5 VR6 They are for factory use only 1 5 5 Paper Takeup Roller Unit This unit is used to take up paper from a paper tray or cassette Figure 1 14 PWB F Board Figure 1 15 Paper Takeup Roller Product Description EPL N2000 Service Manual 1 56 Rev A ...

Page 69: ...er Unit The transfer unit transfers the toner image from the surface of the PC drum onto the paper When paper is transported across the transfer roller and PC drum the transfer roller located on the reverse side of the paper applies a positive electric charge to the paper to attract the toner image from the drum to the paper Figure 1 16 Registration Roller Figure 1 17 Transfer Unit EPL N2000 Servi...

Page 70: ... PC drum via the polygon mirror mirrors and lenses to produce a latent electrostatic image 1 5 9 Fusing Unit The fusing unit which consists of the roller and heater lamp fixes toner images onto the paper using heat and pressure The thermistor is installed in the unit for heat control and the thermostat takes over the job when the heat control fails Figure 1 18 Print Head Unit Figure 1 19 Fusing Un...

Page 71: ...led inside the unit 1 5 11 Imaging cartridge The Imaging cartridge contains mechanisms to control charging developing and cleaning The toner tank is installed inside the cartridge and the whole cartridge must be replaced when toner runs out The cartridge has a fuse attached which the printer can use to detect whether or not the cartridge is new Figure 1 20 Drive Unit Figure 1 21 Imaging Cartridge ...

Page 72: ...er empty sensor detects paper outs and the paper near empty sensor detects the amount of paper remaining in the cassette Paper takeup roller Transport roller Paper size switches Paper empty sensor Paper near empty sensor Figure 1 22 Cassette Unit Product Description EPL N2000 Service Manual 1 60 Rev A ...

Page 73: ...MAIN Board Operation 2 15 2 2 2 2 Video Controller Operating Principles 2 17 List of Tables Table 2 1 Printing Process for the EPL N2000 2 1 Table 2 2 Paper Size Switches 2 9 Table 2 3 Sensor Description 2 13 Table 2 4 Functions of C207 MAIN Board 2 16 List of Figures Figure 2 1 Main Process Mechanism Parts and Paper Paths 2 1 Figure 2 2 Charging Process 2 2 Figure 2 3 Exposure Process 2 3 Figure ...

Page 74: ... a visible toner image 4 Transfer The transfer roller transfers the toner image from the surface of the PC drum onto the paper using an electrical charge applied from the transfer roller 5 Separating The electrode discharges the paper to separate it from the drum 6 Fusing Toner image is fixed on the paper with heat and pressure 7 Cleaning The cleaning blade clears toner off the PC drum and transfe...

Page 75: ...the bias voltage to the rayon charging brush Then the PC drum is evenly charged with the negative electric charge applied from the charging brush DC bias 1150 V Charging Brush PC Drum PC Drum Ground Charge Bias 1150V DC Figure 2 2 Charging Process Operating Principles EPL N2000 Service Manual 2 2 Rev A ...

Page 76: ... beams run scanning from one edge to the other There is a sensor called SOS or Start Of Scan sensor attached in the laser unit The laser beam is emitted onto the sensor to detect the starting point for scanning of each line It correctly times the illumination of the laser diode with the rotation of the polygon mirror Charging Brush Laser Beam PC Drum PC Drum Ground Drum Surface Polygon Mirror Lase...

Page 77: ...bias feeds toner evenly on the sleeve roller The amount of toner fed onto the roller is controlled by developing bias which enables the printer to adjust printing tones Developing bias 300 V 220 to 330 V Toner bias 550 V Seal bias 249 bias Toner bias 500V PWB F High Voltage Unit Toner Hopper Seal bias 249V PC Drum Sleeve Roller Toner Feed Roller Developing bias 300V 220V to 330V Figure 2 4 Develop...

Page 78: ...he roller provides the paper with positive voltage applied from the high voltage unit Then the toner image on the drum transfers to the paper being attracted by the positive voltage The needle pole located above the roller is used to collect the remaining static electricity on the paper Transfer bias 4000 V DC PC Drum Paper Transfer Roller Needle Pole 4000 VDC Transfer Bias Figure 2 5 Transfer Pro...

Page 79: ...ermistor detects the surface temperature of the upper fusing roller The PWB A board switches the heater lamp on or off depending on the temperature detected When the temperature is abnormally high which is usually caused by a malfunction of the control board or the thermistor the thermostat detects it and cuts off the current During warm up the heater continues to heat up until it reaches 190o C 3...

Page 80: ...the toner to the page Heater lamp A lamp built into the upper fusing roller This is supplied AC power to heat the upper fusing roller Thermistor The thermistor located next to the upper fusing roller detects the roller s surface temperature To control the roller s temperature the control circuit alternately switches the heater lamp on and off based on the temperature the thermistor detects This pr...

Page 81: ...oid is energized While turning the push down cam pushes down the stack of paper on the paper lifting plate Then the paper takeup roller picks up a sheet of paper Friction between the paper separator and transport roller avoid multiple paper feeding Push down Cam Transport Roller Paper Takeup Roller Paper Takeup Clutch Separator Paper Lifting Plate Paper Take up Solenoid Figure 2 7 Paper Tray Feed ...

Page 82: ...er the amount of paper remaining in the tray is 50 sheets or less or whether it is 250 sheets or less The paper empty sensor is used to detect paper empty condition Table 2 2 shows combinations of the paper sizes and corresponding switches Table 2 2 Paper Size Switches Paper Size SW1 SW2 SW3 SW4 Paper Size SW1 SW2 SW3 SW4 A3 ON ON OFF ON HLT OFF ON ON ON A4 1 OFF ON OFF OFF LGL OFF ON OFF ON A5 1 ...

Page 83: ...bly Toner Empty Sensor Paper Empty Sensor Paper Exit Sensor Thermistor Thermostat Heater Lamp Power Source Fan Motor Interlock Switch Bias High Voltage Fusing Fan Motor Paper Near Empty Sensor PWB E Power Supply Board Paper Takeup Sensor Registration Sensor Main Motor M1 Paper Takeup Solenoid Registration Clutch PWB C Board Paper Empty Sensor Cassette Size Sensor Paper Takeup Solenoid SL2 Paper Ca...

Page 84: ...l of laser is adjusted prior to the printing and a laser error occurs if the adjustment fails If any of following conditions in the polygon motor is detected the polygon motor is regarded as malfunctioning 1 The polygon motor lock signal does not go ON within 10 seconds after the polygon motor goes ON 2 The polygon motor lock signal goes ON after the polygon motor is energized but it goes OFF agai...

Page 85: ...fter the upper fusing roller starts warming up 2 120 seconds has passed after the upper fusing roller started warming up But the temperature of the upper fusing roller is still under 190o C 374 F 3 In standby the upper fusing roller temperature drops under 140o C 284 F 4 During printing the upper fusing roller temperature drops under 150o C 302 F 5 When the temperature is under control the upper f...

Page 86: ...Empty Sensor PE2 6 Upper Fusing Roller 21 Lower Paper Cassette Unit 7 Paper Exit Sensor PC3 22 Paper Empty Sensor PE1 8 Lower Fusing Roller 22 Paper Near Empty Sensor PEN1 9 Switchback Motor Optional 23 Toner Empty Sensor TE 1 10 Duplex Transport Roller Optional 24 Laser Unit 11 Duplex Paper Sensor Optional 25 Registration Sensor PCR 1 12 Main Motor 26 Paper Lifting Plate 13 Transport Motor Option...

Page 87: ...eached the paper takeup sensor PC1 The paper exit sensor PC3 does not come ON within approximately 2 3 seconds after the ending edge has passed the paper takeup sensor PC1 The paper exit sensor PC3 does not come ON while power is on or when or the upper and duplex unit covers are closed The duplex paper sensor PC4 does not go OFF within approximately 2 7 seconds after the switch back motor for the...

Page 88: ...ocalTalk GG46833 SLAM PIC E05B29 PCMCIA Card Parallel B I F Parallel C I F EEPROM 16KB IC15 16 RIT4 Plus IC37 E05B28 A2 27 D0 31 CN7 CN14 ROM IC21 LL FONT Option FONT MASK ROM ROM SIMM CN12 CN11 C207 PROG BOARD RAM SIMM CN 9 10 IC5 6 9 10 11 12 AB DB Control MAB DB Control AB DB D RAM CN4 CN5 CN6 CN2 CN3 CN15 CN1 CLK RESET A2 27 D0 31 AB0 7 DB0 7 Panel Unit Video Video Signal Control Control AB DB...

Page 89: ...interface IC29 Parallel C interface Two 8 M bit FONT ROMs IC15 IC16 These ROMs are font ROMs Option 8M Bit ROM IC21 This ROM is local language ROM font option EEPROM IC38 This 16K bit EEPROM stores the followings Mode type Printer page counter value Toner life counter value SelecType setting DRAM IC9 12 1 These DRAMs are used as the working area of the elements such as the CPU input buffer and ima...

Page 90: ...uch problems usually can be solved by changing buffer size or increasing RAM memory Bitmap data from the CPU is too complicated for the size of video RAM When data is complicated the CPU cannot process it faster than it is transmitted to the engine controller board Image data stored in video RAM is transmitted to the ASIC where the BiRITech and PGI functions manipulate the data The data is then pa...

Page 91: ...2 3 2 5 Rear Panel Removal 3 13 3 2 6 Transfer Unit Removal 3 14 3 2 7 High Voltage Supply Board PWB F Board Unit Removal 3 15 3 2 8 Printhead Unit Removal 3 16 3 2 8 1 Harness Cover Removal 3 16 3 2 8 2 Printhead Unit Removal 3 17 3 2 9 Paper Empty Sensor Assembly Removal 3 18 3 2 10 Paper Takeup Roller Assembly Removal 3 20 3 2 11 Paper Takeup Roller Unit Removal 3 21 3 2 12 Registration Roller ...

Page 92: ...8 Transport Guide Removal 3 20 Figure 3 19 Paper Takeup Roller Assembly Removal 3 20 Figure 3 20 Paper Lifting Plate Removal 3 21 Figure 3 21 Paper Takeup Roller Removal 3 22 Figure 3 22 Registration Roller Assembly Removal 3 23 Figure 3 23 PWB A Board Unit Removal 3 24 Figure 3 24 Drive Unit Location 3 25 Figure 3 25 Drive Unit Removal 3 25 Figure 3 26 Drive Unit Gear Engagement 3 26 Figure 3 27 ...

Page 93: ...the interlock switch to connect current with the top cover open Handle frame edges with care since this printer has a considerable amount of metal materials Do not disassemble the Imaging cartridge If the Imaging cartridge is removed from the printer do not place it in direct sunlight Do not disassemble the printhead assembly To prevent damage to ICs from static electricity do not touch the ICs on...

Page 94: ... types of screws are used in this printer Table 3 2 Screw Abbreviations Abbreviation Part Name CCS Cross recessed Cup head S tight CCB Cross recessed Cup head B tight CB S P1 Cross recessed Bind head with Spring lock washer and 1 Plain washer CBS Cross recessed Bind head S tight CPS Cross resseded Pan head S tight Table 3 3 Screw and Washer Types Screw type Appearance CCS CCB CB S P1 CBS CPS CAUTI...

Page 95: ... Does the heater lamp turn on normally Status sheet Is the status sheet printed normally Data print Does data print in all modes ROM version Is it the latest version Cleaning Are toner and dust removed from the paper path Is the lens on the optical unit clean Is the paper takeup roller clean Are the fusing rollers clean Is the outer surface of the printer clean Packing Is the Imaging cartridge rem...

Page 96: ... The page counter information which can be checked through the SelecType is stored on the EEPROM The page counter clear function resets the page counter to 0 Switches to use Turn on the printer while holding down the On Line Item and Menu switches Flash IC Card Clear When the optional flash IC card is used the saved information in the card is erased with this mode It s only available when the card...

Page 97: ... Press the SelecType Menu Item Value and Enter switches This combination is effective only when the printer is in an error status Indication of service call error details When a Exxx or C2000 error has occurred detailed information on the error can be indicated by using this function Switches to use Press the Continue SelecType and Menu switches at one time The LCD panel displays detailed informat...

Page 98: ...en the top cover Never touch the following parts when opening the top cover Fusing unit It remains hot for a while after the printer stops printing Transfer Roller Contact with the roller causes printing deterioration Dust tight t glass Contact with the dust tight glass causes printing deterioration 3 2 1 2 Left Cover Removal 1 Loosen 2 CCS screws 3 X 8 from the top and rear parts of the left cove...

Page 99: ... from the upper part of the front cover 2 Remove 2 CCS screws 3 X 8 from the front side of the front cover 3 Remove 2 CCS screws 3 X 6 from the inside of the front paper tray 4 Pull out the Front Cover and remove 3 2 1 8 Rear Cover Removal 1 Remove 2 CCS screws 3 X 8 from the upper part of the rear cover 2 Release 6 hooks securing the rear cover Refer to Figure 3 2 3 Remove the rear cover Disassem...

Page 100: ...r Cover Rear Cover Left Cover 3X6 Right Front Cover CCS Screw 3X8 CCS Screw 3X8 CCS Screw 3X8 CCS Screw 3X8 CCS Screw 3X8 CCS Screw CCS Screw 3X8 3X6 CCS Screw Front Cover CCS Screw Front Side Figure 3 2 Outer Cover Removal Disassembly and Assembly EPL N2000 Service Manual 3 8 Rev A ...

Page 101: ...om the fusing unit 2 from the right 1 from the left 3 Remove 2 CCS screws 3 X 8 Securing the fusing unit 4 Remove the fusing unit Rear Cover Rear Panel Fusing Unit CCS Screws 3 X 8 Rear Side Figure 3 4 Fusing Unit Removal 1 Fusing Unit Front side Rear side Figure 3 3 Fusing Unit Location EPL N2000 Service Manual Disassembly and Assembly Rev A 3 9 ...

Page 102: ...ch of the fusing unit with the shaft of the gear Fusing Unit viewed from the top CCS Screws 3 X 8 Connectors Connector Front Side Rear Side Refer to the assembly note below Figure 3 5 Fusing Unit Removal 2 Disassembly and Assembly EPL N2000 Service Manual 3 10 Rev A ...

Page 103: ...5 on the electrical board 3 Remove 6 CCS screws 3X 6 from the PWB E Board 4 Remove the PWB E Board PWB E Board CCS Screws 3X8 Front Side Figure 3 7 PWB E Board Removal PWB E Board Front side PWB A Board C207 MAIN Board High Voltage Supply Board Figure 3 6 Unit Location 1 EPL N2000 Service Manual Disassembly and Assembly Rev A 3 11 ...

Page 104: ... 2 Remove the shield frame Refer to Section 3 2 4 1 3 Remove 4 CCS screws 3X6 securing the connector panel of the C207 MAIN Board 4 Remove 6 CBS screws 3X8 securing the MAIN Board 5 Remove the C207 MAIN Board CBS Screw 3X6 Shield Frame Right Side Front Side CBS Screw 3X6 CBS Screw 3X6 Figure 3 8 Shield Frame Removal C207 MAIN Board Connector Panel CCS Screw 3X6 CB S P1 Screw Front Side Right Side ...

Page 105: ...rews 3X6 securing the rear panel 4 Lift up the Rear Panel to release 2 hooks then remove the panel Be sure to disconnect the fan connector from the High Voltage Supply PWB F Board Unit Rear Panel CCS Screw 3X6 Fan Connector PWB E Board CN2 Rear Side CCS Screw 3X6 3 10 Rear Panel Removal EPL N2000 Service Manual Disassembly and Assembly Rev A 3 13 ...

Page 106: ...it 6 Remove the Transfer Unit by pushing aside the left frame in the direction indicated by the arrow Don t touch the surface of the Transfer Roller with your bare hands Assembly Note When assembling the transfer Unit ensure that the pins on the Transfer Unit fit into the holes in the Drive Unit CAUTION Transfer Unit CCB Screw 3X8 Left Frame Refer to the figure below Rear Side Figure 3 11 Transfer...

Page 107: ...7 Remove the CCS screw 3X8 securing the High Voltage Supply Board Unit 8 Remove the High Voltage Supply Board Unit Never change the variable resistor volume VR 1 to 6 on the High Voltage Supply Board Assembly Note When assembling the High Voltage Supply Board ensure that the pins on the High Voltage Supply Board fit into the holes in the Drive Unit HVPS Board CCS Screw 3X8 Refer to the figure belo...

Page 108: ...overs Refer to Section 3 2 1 2 Remove 2 CCS screws 3X8 securing the harness cover Printhead Unit Front Side Figure 3 13 Printhead Unit Location Harness Cover CCS Screw 3X8 Printhead Unit Figure 3 14 Harness Cover Removal Disassembly and Assembly EPL N2000 Service Manual 3 16 Rev A ...

Page 109: ...Section3 2 8 1 3 Disconnect the connector CN2 on the PWB A Board 4 Remove 2 CB S P1 screws 3X20 and a CCS screw 3X12 securing the Printhead 5 Remove the Printhead Connector CN2 Print heat Unit CCS Screw 3X12 CB S P1 Screw Figure 3 15 Printhead Unit Removal EPL N2000 Service Manual Disassembly and Assembly Rev A 3 17 ...

Page 110: ...Paper Empty Sensor Assembly 5 Remove the Paper Empty Sensor Assembly CCS Screw 3X6 CN3 6 9 PWB A Paper Empty Sensor Assembly CCS Screw 3X6 Connector cables to Detection Lever Refer to the caution next page Rear Side Right Side Figure 3 17 Paper Empty Sensor Assembly Removal Paper Empty Sensor Assembly Detection Lever Paper Takeup Roller Unit Front Side Figure 3 16 Unit Location 2 Disassembly and A...

Page 111: ...Be careful handling the Paper Empty Sensor Assembly so the detection lever doesn t break Detection Lever Rear Side CAUTION EPL N2000 Service Manual Disassembly and Assembly Rev A 3 19 ...

Page 112: ...remove the Transport guide 4 Remove 1 CB S P1 screw 3X8 securing the Paper Takeup Roller Assembly 5 Remove the Paper Takeup Roller Assembly Transport Guide Push Hook Front Side Figure 3 18 Transport Guide Removal Paper Takeup Roller Assembly CB S P1 Screw 3X8 Rear Side Figure 3 19 Paper Takeup Roller Assembly Removal Disassembly and Assembly EPL N2000 Service Manual 3 20 Rev A ...

Page 113: ... 3 2 9 6 Remove 1 CCB screw 3X8 securing the Paper Lifting Plate 7 Remove 1 CCS screw 3X8 securing the Paper Takeup Roller Unit 8 Remove the Paper Lifting Plate 9 Remove the Paper Takeup Roller Unit There is a spring under the paper lifting plate Make sure that the spring won t catch the connector when taking out the paper lifting plate CCB Screw 3X8 Paper Lifting Plate Figure 3 20 Paper Lifting P...

Page 114: ...lling or reinstalling the Paper Takeup Roller Unit make sure that it won t interfere with the contact points of the Imaging cartridge Paper Takeup Roller Right Edge Front Side CAUTION Paper Takeup Roller Unit CCS Screw 3x8 Refer to the figure below Front Side Figure 3 21 Paper Takeup Roller Removal Disassembly and Assembly EPL N2000 Service Manual 3 22 Rev A ...

Page 115: ...fer to Section 3 2 11 7 Remove 2 CCS screws 3X8 securing Registration Roller Assembly 8 Remove the Registration Roller Assembly Assembly Note When reinstalling the Registration Roller Assembly fit the pins on the Registration Roller Assembly into the corresponding holes in the Drive Unit Registration Roller Assembly CCS Screw 3x8 Front Side Refer to the figure below Drive Unit Figure 3 22 Registra...

Page 116: ...efer to Section 3 2 4 4 Remove 2 CCS screws 3X6 securing the PWB A Board Unit 5 Remove the PWB A Board Unit Assembly Note When assembling the PWB A Board Unit be suer to adjust it to the slots in the Drive Unit Drive Unit PWB A Board Front Side Right Side CCS Screw 3X6 CCS Screw 3X6 Figure 3 23 PWB A Board Unit Removal Disassembly and Assembly EPL N2000 Service Manual 3 24 Rev A ...

Page 117: ...ead Unit Refer to Section 3 2 8 8 Remove the Paper Empty Sensor Assembly Refer to Section 3 2 9 9 Remove the Paper Takeup Roller Unit Refer to Section 3 2 11 10 Remove the Registration Roller Assembly Refer to Section 3 2 12 11 Remove the PWB A Board Refer to Section 3 2 13 12 Remove 5 CCS screws 3X6 securing the Drive Unit 13 Remove the Drive Unit Drive Unit Front Side Figure 3 24 Drive Unit Loca...

Page 118: ...Figure 3 26 Drive Unit Gear Engagement Disassembly and Assembly EPL N2000 Service Manual 3 26 Rev A ...

Page 119: ...g Lamp Cover Removal 1 Remove CCB screw 3X8 securing the Right Fusing Lamp Cover 2 Slide the Right Fusing Lamp Cover to the right to release the fitting then remove it Fusing Unit Viewed from the Left Edge Left Fusing Lamp Cover CCS Screw 3X8 Left Side Rea Side Figure 3 27 Left Fusing Lamp Cover Removal Fusing Unit Viewed from the Right Edge CCB Screw 3X8 Right Fusing Lamp Cover Fitting Front Side...

Page 120: ...andling it Don t touch the glass part of the tube lamp with your bare hands Fusing Roller Heater Lamp Actuator Thermistor Thermoatat Lower Fusin Roller Rear Side Paper Exit Sensor Upper Fusing Roller Figure 3 29 Unit Location 3 Fusing Unit Heater Lamp Push Rear Side A 1 2 Figure 3 30 Heater Lamp Removal CAUTION Disassembly and Assembly EPL N2000 Service Manual 3 28 Rev A ...

Page 121: ...the Heater Lamp is installed Make sure that the lamp edge with the voltage mark on it is set to the right side of the Fusing Unit Fusing Unit Right edge Voltage Mark Heater Lamp XXX V EPL N2000 Service Manual Disassembly and Assembly Rev A 3 29 ...

Page 122: ...t the connector for the Paper Exit Sensor 4 Remove the Paper Exit Sensor 5 Remove the actuator spring 6 Slide the actuator in the direction indicated by the arrow then remove it Actuator Spring Rear Side Fusing Unit Connector Paper Exit Sensor Actuator Spring Slide Figure 3 31 Paper Exit Sensor Removal Disassembly and Assembly EPL N2000 Service Manual 3 30 Rev A ...

Page 123: ... lock stoppers indicated by the arrow 5 Remove the rear fusing cover 6 Remove the Lower Fusing Roller When removing and installing the rear fusing cover be careful not to bend the contact spring Lock Stopper Lower Fusing Roller Bushing CCS Screw 3X10 Rear Fusing Cover Rear Side Bushing Lock Stopper CCS Screw 3X10 Figure 3 32 Lower Fusing Roller Removal CAUTION EPL N2000 Service Manual Disassembly ...

Page 124: ... the separators 6 Remove the stoppers 7 Slide and raise the separators to a right angle and pull them upward to remove Assembly Note Note the direction in which the stoppers are placed The 3 stoppers on the right face in the opposite direction to the 3 on the left Separator Upper Fusing Roller Hook Spring Separator Separating Roll Stopper Shorter Longer Upper Fusing Roller Figure 3 33 Separator Re...

Page 125: ...4 Remove the Lower Fusing Roller Refer to Section 3 2 17 5 Remove 2 shoulder screws securing the front fusing cover 6 Remove the front fusing cover 7 Remove CPS screw 3X10 securing the thermistor 8 Remove the thermistor Shoulder Screw Front Fusing Cover Thermistor CPS Scrw 3X10 Shoulder Screw Rear Side Figure 3 34 Thermistor Removal EPL N2000 Service Manual Disassembly and Assembly Rev A 3 33 ...

Page 126: ...mp Refer to Section 3 2 15 4 Remove the Lower Fusing Roller Refer to Section 3 2 17 5 Remove the front fusing cover Refer to Section 3 2 19 6 Remove 2 CB S P1 screws 3X6 securing the thermostat 7 Remove the thermostat Thermostat Front Fusing Cover CB S P1 Screw 3X6 Rear Side Figure 3 35 Thermostat Removal Disassembly and Assembly EPL N2000 Service Manual 3 34 Rev A ...

Page 127: ... Remove the Lower Fusing Roller Refer to Section 3 2 17 5 Remove the front fusing cover Refer to Section 3 2 19 6 Remove 2 G rings from the right and left edges 7 Remove the gear ring and bushings 8 Slide the Upper Fusing Roller to the gear side and remove it Upper Fusing Roller Bushing Ring Gear G ring Figure 3 36 Upper Fusing Roller Removal EPL N2000 Service Manual Disassembly and Assembly Rev A...

Page 128: ...tside the Drive Unit 4 Remove the frames 5 Remove 4 CCS screws 3X6 securing the main motor inside the Drive Unit 6 Remove the main motor Drive Unit Inside Frame CCB Screw 3X8 CCB Screw 3X8 Front Side Figure 3 37 Main Motor Removal 1 Drive Unit outside Right Frame CCS Screw 3X6 Front Side CCS Screw 3X6 Figure 3 38 Main Motor Removal 2 Disassembly and Assembly EPL N2000 Service Manual 3 36 Rev A ...

Page 129: ...ght frame 5 Remove 2 CB S P1 screws securing the interlock switch along with the bracket Interlock Switch CB S P1 Screw Figure 3 40 Interlock Switch Removal 2 Drive Unit outside Right Frame CCB Screw 3X8 E ring CB S P1 screw Refer to the figure below CCB Screw 3X8 CCB Screw 3X8 Front Side Figure 3 39 Interlock Switch Removal 1 EPL N2000 Service Manual Disassembly and Assembly Rev A 3 37 ...

Page 130: ...3 2 Remove CCB screw 3X8 securing the solenoid 3 Remove the solenoid CCB Screw 3X8 Figure 3 42 Paper Takeup Solenoid Removal Solenoid Refer to the figure below Drive Unit Inside Front Side Right Frame Figure 3 41 Paper Takeup Solenoid Removal 1 Disassembly and Assembly EPL N2000 Service Manual 3 38 Rev A ...

Page 131: ...Chapter 4 Adjustment No adjustment is required in this product ...

Page 132: ...ays Toner Out 5 6 Table 5 10 The LCD Displays Write Error Card 5 6 Table 5 11 The LCD Displays Sevice Req E0003 5 7 Table 5 12 The LCD Displays Sevice Req E0004 5 7 Table 5 13 The LCD Displays Sevice Req E0005 5 7 Table 5 14 The LCD Displays Sevice Req E0006 0009 5 8 Table 5 15 The LCD Displays Sevice Req E0014 5 8 Table 5 16 The LCD Displays Sevice Req C1000 1001 1002 5 8 Table 5 17 The LCD Displ...

Page 133: ...Troubleshooting EPL N2000 Service Manual 5 2 Rev A ...

Page 134: ... Error Type Error Code Description E 0003 0004 0005 0006 0009 0014 Fusing unit error Main motor error Fan motor error Polygon motor or laser scanner error Laser diode error Engine communication error C 0001 0002 0003 0004 0007 0009 0010 0017 to 0031 0036 0128 to 0254 0255 1000 1001 1002 1003 1100 1101 1120 1121 1122 1123 1170 1180 CPU error Reserved CPU error Privilege violation CPU error Illegal ...

Page 135: ...1300 1320 1400 1999 2000 Cartridge access error EEPROM write error EEPROM write counter overflow Type B Interface error LocalTalk Serial module error Engine initialization error Hardware error Software error A B D F to Z XXXX Software error Troubleshooting EPL N2000 Service Manual 5 2 Rev A ...

Page 136: ...ects an error use Table 5 2 to identify the symptom and the reference table number If a service call error has occurred follow the steps below before taking an action 1 Note the error code 2 Turn off the printer 3 Turn the printer back on to see if the same message still appears Table 5 2 Symptoms and Reference Tables EPL N2000 Service Manual Troubleshooting Rev A 5 3 ...

Page 137: ...isplays Feed Jam when the standard lower paper cassette is used The LCD displays Feed Jam when the optional lower paper cassette is used Toner Out The LCD displays Toner Out when a new Imaging cartridge is installed 5 9 Write Error Card The LCD displays Write Error Card when an IC card is inserted 5 10 Service Req XXXX XXXX E0003 Fusing unit error 5 11 XXXX E0004 Main motor error 5 12 XXXX E0005 F...

Page 138: ...B A board Table 5 4 RAM Check is Not Started Step Cause Checkpoint Finding Solution 1 C207 MAIN board may be bad Is a RAM check performed when the main board is replaced Yes Replace the main board 2 The control panel may be bad Replace the panel Table 5 5 The LCD Displays Printer Open Step Cause Checkpoint Finding Solution 1 The interlock switch and the top cover do not engage securely Is the inte...

Page 139: ...r or the registration sensor may not be connected properly Are the cables connected properly to the takeup sensor connector paper exit sensor connector and the registration sensor connector No Reconnect the sensor properly 3 The paper takeup sensor may be bad Check the outputs of pin 6 of CN10 against pin 4 on the PWB A board Correct levels HIGH No paper is loaded LOW Paper is loaded Are the outpu...

Page 140: ...nd the PWB A board 3 The paper takeup roller assembly may be bad Is paper taken up normally without slipping No Clean the paper takeup assembly or replace it Table 5 9 The LCD Displays Toner Out Step Cause Checkpoint Finding Solution 1 The toner in the Imaging cartridge has run out Replace the Imaging cartridge Table 5 10 The LCD Displays Write Error Card Step Cause Checkpoint Finding Solution 1 T...

Page 141: ...nnector may be connected improperly Is connector CN5 on the PWB A board properly connected No Connect it properly 2 The main motor may be bad Replace the main motor Is operation OK Yes Replace the main motor 3 The PWB E board may be bad Replace the PWB A board Table 5 13 The LCD Displays SERVICE REQ E0005 Step Cause Checkpoint Finding Solution 1 The connector may be connected improperly Are connec...

Page 142: ...ct them properly 2 C207 MAIN board may be bad Is operation OK when the C207 MAIN board is replaced Yes Replace the main board Table 5 16 The LCD Displays SERVICE REQ C1000 1001 1002 Step Cause Checkpoint Finding Solution 1 C207 MAIN board may be bad Replace the main board Table 5 17 The LCD Displays SERVICE REQ C1003 Step Cause Checkpoint Finding Solution 1 The optional RAM SIMM may be bad Is the ...

Page 143: ...07 MAIN board may be bad Replace the main board Table 5 21 The LCD Displays Service Req C1200 1210 Step Cause Checkpoint Finding Solution 1 The EEPROM may be bad Perform EEPROM initialization Note that the information including the page counter will be lost Is operation OK Yes Replace the EEPROM 2 C207 MAIN board may be bad Replace the main board Table 5 22 The LCD Displays Service Req C1400 Step ...

Page 144: ...it Dust lint in the transfer roller white lines Clean the transfer roller Scratches on the PC drum black lines Replace the Imaging cartridge Low main charge voltage black lines Replace high voltage power supply and check contacts Horizontal lines Dust on the gears Remove the dust Replace the drive unit Uneven rotation of the polygon motor Replace the print head unit Low image density Low developme...

Page 145: ...le Cause Solution No image printed Blank completely black High development bias Replace the high voltage unit PWB E Replace the Imaging cartridge Low development bias Offset image Improper transfer Clean the transfer unit or the fusing unit The fusing roller does not grip paper properly Wipe the dust off the fusing roller Troubleshooting EPL N2000 Service Manual 5 12 Rev A ...

Page 146: ...TENANCE Table of Contents 6 1 Maintenance 6 1 6 1 1 User Maintenance 6 1 6 1 2 Service Maintenance 6 1 List of Tables Table 6 1 Instructions for User Maintenance 6 1 Table 6 2 Instructions for Service Maintenance 6 1 ...

Page 147: ...mum Approximately 8 000 to 10 000 sheets Replace the Imaging cartridge 6 1 2 Service Maintenance The EPSON EPL N2000 does not require any replacement of units at specified intervals It is however recommended that specific units be replaced after periods determined by the total number of sheets printed This is indispensable in preventing abnormal operations such as multi sheet feeds paper jams and ...

Page 148: ...14 PWB A CN13 Paper Exit Sensor Thermistor Registration Clutch A 7 Table A 15 C207 MAIN Board CN4 Type B Interface A 7 Table A 16 C207 MAIN Board CN5 I O Bus A 8 Table A 17 C207 MAIN Board CN7 CPU Bus A 9 Table A 18 C207 MAIN Board CN9 CN10 RAM SIMM A 10 Table A 19 C207 MAIN Board CN11 ROM Bus A 12 Table A 20 C207 MAIN Board CN12 ROM SIMM A 14 Table A 21 C207 MAIN Board CN14 IC Card Slot A 16 Tabl...

Page 149: ...e A 17 C207 MAIN Board ROM ROM SIMM A 33 Figure A 18 C207 MAIN Board RAM RAM SIMM A 34 Figure A 19 C207 MAIN Board Interface A 35 Figure A 20 C207 MAIN Board Video I F A 36 Figure A 21 C207 MAIN Board MISC A 37 Figure A 22 C207 PROG Board A 38 ...

Page 150: ...ard PC4 PWB B Duplex Sensor Duplex Unit Optional Switchback Motor Transport Motor Cover Switch Paper Size Switch Paper Empty Sensor PE2 Paper Near Empty Sensor PNE2 Paper Takeup Solenoid SL2 Optional Cassette Unit Print Head Unit Laser Diode Board Polygon Motor PWB D Paper Near Empty Main Motor Paper Takeup Solenoid SL1 CN3 Flash RAM Socket Parallel B I F Type B Slot Paper Empty Sensor PWB G Toner...

Page 151: ...supply board PWB E board 8 A 6 CN5 Main motor 4 A 7 CN6 Toner empty sensor TE1 Paper empty sensor PE1 7 A 8 CN7 Not used CN8 Cassette unit 10 A 9 CN9 Imaging cartridge part fuse 2 A 10 CN10 High voltage unit PWB F 11 A 11 CN11 Duplex unit optional 12 A 12 CN12 Paper takeup solenoid 2 A 13 CN13 Paper exit sensor thermistor registration clutch 7 A 14 Appendix EPL N2000 Service Manual A 2 Rev A ...

Page 152: ...11 Chapter 1 CN3 IEEE 1284 interface C connector 36 1 13 Chapter 1 CN4 Type B interface 36 A 15 CN5 I O bus 40 A 16 CN6 Network interface 8 1 15 Chapter 1 CN7 CPU bus 40 A 17 CN9 RAM SIMM 2 72 A 18 CN10 RAM SIMM 1 72 A 18 CN11 ROM bus to C207 PROG board 80 A 19 CN12 ROM SIMM 72 A 20 CN14 IC card slot 68 A 22 CN15 Control panel 20 A 23 EPL N2000 Service Manual Appendix Rev A A 3 ...

Page 153: ...mit signal Communication with engine controller Print start command Controller current status signal Signal ground Video data Signal ground Table A 4 PWB A CN2 Printhead Unit Pin Signal Name I O Description 1 2 3 4 5 6 7 8 9 10 11 12 SSCAN LD MONITOR DA2 DA1 GND LDATA 5V 24V GND POLYGON_MOTOR POLYGON_CLOCK POLYGON_LOCK I I O O O O O I Vertical synchronous signal Laser power detection signal Laser ...

Page 154: ...ion 1 2 3 4 5 6 7 5V TONER_LEVEL TONER_LED GND ANODE GND P_EMP 1 I O I 5 V Toner amount detection signal TE1 sensor LED drive signal Ground PE1 anode Ground Paper amount detection signal Table A 9 PWB A CN8 Paper Cassette Unit Pin Signal Name I O Description 1 2 3 4 5 6 7 8 9 10 PICK_UP 3 PICK_UP 2 3RD_SIG 2ND_SIG SIFT_LOAD SENSOR_CLOCK 24V 5V GND GND O O I I O O Solenoid SL3 optional drive signal...

Page 155: ...Off signal Seal bias HIGH LOW control Table A 12 PWB A CN11 Duplex Unit Option Pin Signal Name I O Description 1 2 3 4 5 6 7 8 9 10 11 12 GND 5V 24V UP_SET UP_PS HANSO_CTL HANSO_B HANSO_A HAISI_CTL HAISI_B HAISI_A UP_OPEN I I O O O O O O I Ground 5 V 24 V Duplex unit detection signal Duplex paper takeup sensor PC4 detection signal Transport motor control signal Transport motor control signal B Tra...

Page 156: ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 5V 5V 5V 5V 5V 5V TXD READY RXD NC RESET INH CMREQ WRRDY RDREQ WR RD CS GND GND GND GND GND GND A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 O O I O O I I I O O O O O O O I O I O I O I O I O I O I O I O 5 VDC 5 VDC 5 VDC 5 VDC 5 VDC 5 VDC Serial data transmitted READY signal Serial data received Not used RESET signal I F card disable Request command I F read...

Page 157: ... GND GND GND GND Bidirectional data bus 0 Bidirectional data bus 1 Bidirectional data bus 2 Bidirectional data bus 3 Bidirectional data bus 4 Bidirectional data bus 5 Bidirectional data bus 6 Bidirectional data bus 7 Address bus Address bus Address bus Address bus Address bus Chip select signal Read signal Goes LOW with WR signal at reset Write signal Goes LOW with RD signal at reset Interruption ...

Page 158: ... 27 Address bit 28 Address bit 29 Address bit 30 Address bit 31 Not used Not used Address bus data Not used Chip select signal Chip select signal Chip select signal Chip select signal Chip select signal Chip select signal New bus transaction starts Read write signal Not used DRAM refresh timing control Bus lock signal Not used Bus request signal Response to BREQ signal Current bus transaction comp...

Page 159: ... O O O I O I O I O I O I O I O I O I O O O O O O O O O O O O O I O I O I O I O I O I O I O GND Data bit 0 Data bit 16 Data bit 1 Data bit 17 Data bit 2 Data bit 18 Data bit 3 Data bit 19 5 VDC Not used Address bit 0 Address bit 1 Address bit 2 Address bit 3 Address bit 4 Address bit 5 Address bit 6 Not used Data bit 4 Data bit 20 Data bit 5 Data bit 21 Data bit 6 Data bit 22 Data bit 7 Data bit 23...

Page 160: ...71 72 DQ27 DQ12 DQ28 VDD DQ29 DQ13 DQ30 DQ14 DQ31 DQ15 NC PD1 PD2 PD3 PD4 NC VSS I O I O I O I O I O I O I O I O I O Data bit 27 Data bit 12 Data bit 28 5 VDC Data bit 29 Data bit 13 Data bit 30 Data bit 14 Data bit 31 Data bit 15 Not used Not used Not used Not used Not used Not used GND EPL N2000 Service Manual Appendix Rev A A 11 ...

Page 161: ... Power source Data bit 0 Data bit 16 Data bit 1 Data bit 17 Data bit 2 Data bit 18 Data bit 3 Data bit 19 Data bit 4 Data bit 20 Data bit 5 Data bit 21 Data bit 6 Data bit 22 Data bit 7 Data bit 23 Data bit 8 Data bit 24 Data bit 9 Data bit 25 Data bit 10 Data bit 26 Data bit 11 Data bit 27 Data bit 12 Data bit 28 Data bit 13 Data bit 29 Data bit 14 Data bit 30 Data bit 15 Data bit 31 Ground Groun...

Page 162: ...D GND GND GND O O O O O O O O O O O O O O O O O I O Address bit 7 Address bit 8 Address bit 9 Address bit 10 Address bit 11 Address bit 12 Address bit 13 Address bit 14 Address bit 15 Address bit 16 Address bit 17 Address bit 18 Address bit 19 Address bit 20 Address bit 21 Address bit 22 Address bit 23 READY BUSY status signal Reset signal Write power source Write power source Ground Ground Ground...

Page 163: ... I O I O I O Power source Data bit 0 Data bit 16 Data bit 1 Data bit 17 Data bit 2 Data bit 18 Data bit 3 Data bit 19 Power source Read signal Address bit 0 Address bit 1 Address bit 2 Address bit 3 Address bit 4 Address bit 5 Address bit 6 Address bit 10 Data bit 4 Data bit 20 Data bit 5 Data bit 21 Data bit 6 Data bit 22 Data bit 7 Data bit 23 Address bit 7 Address bit 19 Power source Address bi...

Page 164: ...VDD DQ29 DQ13 DQ30 DQ14 DQ31 DQ15 A16 NC RDY BSY NC NC NC A15 VSS I O I O I O I O I O I O I O I O I O O O Data bit 27 Data bit 12 Data bit 28 Power source Data bit 29 Data bit 13 Data bit 30 Data bit 14 Data bit 31 Data bit 15 Address bit 16 Not used Not used Not used Not used Address bit 15 Power source EPL N2000 Service Manual Appendix Rev A A 15 ...

Page 165: ... I O O O O O O O O GND Data bit 3 Data bit 4 Data bit 5 Data bit 6 Data bit 7 Chip select 1 Address bit 10 Output enable Address bit 11 Address bit 9 Address bit 8 Address bit 13 Address bit 14 Write enable Not used 5 VDC 5 VDC Address bit 16 Address bit 15 Address bit 12 Address bit 7 Address bit 6 Address bit 5 Address bit 4 Address bit 3 Address bit 2 Address bit 1 Address bit 0 Data bit 0 Data...

Page 166: ...207 MAIN Board CN15 Control Panel Pin Signal Name I O Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 LCDCLK GND SWINIT GND LCD A1 LED SWRD NC LCDWR DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 5V 5V O I O I O O O I O I O I O I O I O I O I O I O System clock GND Switch interupt request GND Select of LCD Address bit 1 LED data write signal Switch data read signal Not used LCD data write signal Da...

Page 167: ...A 2 Exploded Diagrams Figure A 2 Housing Appendix EPL N2000 Service Manual A 18 Rev A ...

Page 168: ...Figure A 3 Frames EPL N2000 Service Manual Appendix Rev A A 19 ...

Page 169: ...Fifure A 4 Paper Takeup Section 1 Appendix EPL N2000 Service Manual A 20 Rev A ...

Page 170: ...Figure A 5 Paper Takeup Section 2 EPL N2000 Service Manual Appendix Rev A A 21 ...

Page 171: ...Figure A 6 Drive Unit Appendix EPL N2000 Service Manual A 22 Rev A ...

Page 172: ...Fifure A 7 Transfer Unit EPL N2000 Service Manual Appendix Rev A A 23 ...

Page 173: ...Figure A 8 Fusing Unit Appendix EPL N2000 Service Manual A 24 Rev A ...

Page 174: ...Figure A 9 Paper Cassette Unit EPL N2000 Service Manual Appendix Rev A A 25 ...

Page 175: ...Figure A 10 Lower Paper Cassette Standard Appendix EPL N2000 Service Manual A 26 Rev A ...

Page 176: ...Figure A 11 Lower Paper Cassette Optional EPL N2000 Service Manual Appendix Rev A A 27 ...

Page 177: ...Figure A 12 Optional Duplex Unit Appendix EPL N2000 Service Manual A 28 Rev A ...

Page 178: ...A 3 CIRCUIT BOARD COMPONENT LAYOUT Figure A 13 C202 MAIN Board Component Layout Front EPL N2000 Service Manual Appendix Rev A A 29 ...

Page 179: ...Figure A 14 C207 MAIN Board Component Layout Rear Appendix EPL N2000 Service Manual A 30 Rev A ...

Page 180: ...R8 R1 CN1 PJ7 PJ6 PJ1 PJ3 PJ5 PJ15 1 C4 PJ18 PJ11 PJ17 PJ16 711V C2 7 PROG 2 23149 IC6 IC3 IC4 PJ 14 PJ 13PJ 1 EPSON 9 8 1 C1 R 14 2 R9 ASSY C3 C5 C6 IC5 IC7 IC8 R12 R13 UNIT 2 23148 Figure A 15 C207 MAIN Board PROG Component Layout EPL N2000 Service Manual Appendix Rev A A 31 ...

Page 181: ...4 8 7 6 5 RM5 33 4 1 2 3 4 8 7 6 5 RM6 33 4 1 2 3 4 8 7 6 5 RM7 33 4 1 2 3 4 8 7 6 5 RM8 33 4 1 2 3 4 8 7 6 5 RM9 33 4 1 2 3 4 8 7 6 5 RM10 33 4 1 2 3 4 8 7 6 5 RM11 33 4 1 2 3 4 8 7 6 5 RM12 33 4 1 2 3 4 8 7 6 5 RM13 33 4 DO12 DO13 DO14 DO15 DO16 DO17 DO18 DO19 DO20 DO21 DO22 DO23 DO24 DO25 DO26 DO27 DO28 DO29 DO30 DO31 AO 0 25 AO2 AO3 AO4 AO5 AO6 AO7 AO8 AO9 AO10 AO11 AO12 AO13 AO14 AO15 AO16 AO...

Page 182: ...1 4 2 9 O 1 5 3 1 B Y T E 3 3 V D D 2 3 G N D 1 3 G N D 3 2 IC15 8 16M MASK SOP A 1 9 A 1 8 A 1 7 A 1 6 A 1 5 A 1 4 A 1 3 A 1 2 A 1 1 A 1 0 A 9 A 8 A 7 A 6 A 5 A 4 A 3 A 2 A 2 0 A 0 1 1 A 1 1 0 A 2 9 A 3 8 A 4 7 A 5 6 A 6 5 A 7 4 A 8 4 2 A 9 4 1 A 1 0 4 0 A 1 1 3 9 A 1 2 3 8 A 1 3 3 7 A 1 4 3 6 A 1 5 3 5 A 1 6 3 4 A 1 7 3 A 1 8 2 A 1 9 4 3 N C 4 4 N C 1 C E 1 2 O E 1 4 O 0 1 5 O 1 1 7 O 2 1 9 O 3 ...

Page 183: ...2 VSS 37 VSS 42 IO1 2 IO2 3 IO3 4 IO4 5 IO5 7 IO6 8 IO7 9 IO8 10 IO9 33 IO10 34 IO11 35 IO12 36 IO13 38 IO14 39 IO15 40 IO16 41 N C 11 N C 12 N C 15 N C 16 N C 32 IC6 16M DRAM MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 D20 D2...

Page 184: ...I 4 I 5 I 6 I 7 I 8 I 9 I 1 I 11 O 19 O 12 I O 18 I O 17 I O 16 I O 15 I O 14 I O 13 VCC 20 GND 10 IC36 PAL16L8 15 AB0 AB1 AB2 AB3 AB4 AB5 AB6 AB7 C112 0 1U C97 0 1U C98 0 1U DREQ3X 9 1 0 8 IC17C 74F32 R127 33 DB0 7 DB1 8 DB2 9 DB3 10 DB4 11 DB5 12 DB6 13 DB7 14 AB0 15 AB1 16 AB2 17 AB3 18 AB4 19 CS 20 RD 21 WR 22 NMI 24 IREQ 23 DREQ 25 PCLK 1 DTCT 26 RST 2 TXD 31 TXD 32 RXD 33 RXD 34 DTR 35 CTS 3...

Page 185: ... 5V 13 5V 34 5V 80 5V 90 3V 17 3V 40 3V 51 3V 71 3V 100 GND 6 GND 12 GND 27 GND 36 GND 41 GND 50 GND 61 GND 70 GND 81 GND 91 GND 99 IC37 RIT4PLUS DB0 DB1 DB2 DB3 DB4 DB5 A B 0 TODX DB 0 7 DB 0 7 AB 0 7 AB 0 7 DB6 DB7 AB0 AB1 AB2 AB3 AB4 AB5 AB6 R93 33 STSX ETBSYX PRRDYX EPRDYX CTBSYX SRCLK CMDX CPRDYX PRINTX R87 33 R88 33 R89 33 R90 33 R91 33 R92 33 EPRDY 13 CPRDY 17 PRRDY 4 PRINT 16 ETBSY 14 CTBS...

Page 186: ...14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 1 2 3 4 8 7 6 5 RM20 33 4 1 2 3 4 8 7 6 5 RM21 33 4 1 2 3 4 8 7 6 5 RM22 33 4 1 2 3 4 8 7 6 5 RM23 33 4 1 2 3 4 8 7 6 5 RM24 33 4 R A D 0 2 0 RAD0 RAD1 RAD2 RAD3 RAD4 RAD5 RAD6 RAD7 RAD8 1 2 3 4 8 7 6 5 RM27 10K 4 C86 0 1U A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 G 19 DIR 1 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 11 5 20 GND 10 IC25 74LS24...

Page 187: ...ASK IC3 4 5 6 PJ2 Short R2 Open PJ3 Short R3 Open PJ7 Open PJ14 Short PJ7 Open PJ14 Short PJ7 Open PJ14 Open PJ7 Open PJ14 Short R1 1K D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 VCC 7 C 5 GND 4 OUT 6 NC 1 NC 2 NC 3 NC 8 IC2 M51953BFP C7 0 1U C9 0 22U PJ4 Open R4 Open PJ5 Open R5 Open 16M MASK IC7 8 32M MAS...

Page 188: ...EPSON ...

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