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Principles of Operation

F u s e r C o n t r o l

The fuser is heated by the heater lamp, which is powered by AC voltage. When

the power supply board receives a FUSER LAMP signal from the engine controller

board (PWB-A), the power supply board (PWB-E) supplies the AC voltage to the
heater lamp. This AC voltage is cut by the interlock switch when the case is open.

The fuser temperature is detected by the thermistor. Based on the TH1 signals
from the thermistor, the engine controller board (PWB-A) controls the fusing

temperature (165° C, 329° F) using the FUSER LAMP signal.

F i g u r e 2 - 1 9 . F u s e r C o n t r o l C i r c u i t

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EPSON ActionLaser 1600 Service Manual

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Содержание ActionLaser 1600

Страница 1: ...EPSON Service Manual ActionLaserTM 1600 Epson America Inc TM AL1600 ...

Страница 2: ...ActionLaser TM 1600 Service Manual Revision Level Revision Date 1st printing 6 3 94 EPSON Printed on Recycled Paper ...

Страница 3: ... outlet on a circuit different from the one connected to the receiver For Canadian Users This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications Le présent appareil numérique n èmet pas de bruits radioélectrique dépassant les limites applicable aux appare...

Страница 4: ...nit to a power source until instructed to do so When the power supply cable must be connected use extreme caution in working on the power supply and other electronic component Caution l Repairs on EPSON products 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 rating plate If the EPS...

Страница 5: ... 4574 Fax 305 265 0097 Epson Do Brazil Epson Chile S A Sao Paulo Brazil Providencia Santiago Chile Phone 55 n 813 3044 Phone 562 232 8966 Fax 55 11 210 9290 Fax 562 233 3197 Epson Argentina S A Epson Costa Rica Buenos Aires Argentina San Jose Costa Rica Phone 541 394 2439 Phone 506 34 6666 Fax 541 322 4637 Fax 506 25 5709 Epson Mexico S A De C V Epson Venezuela S A Mexico D F Caracas Venezuela Pho...

Страница 6: ...lity Mode for Parallel Interface 1 18 Reverse Mode 1 20 Serial Interface 1 25 Handshaking 1 27 Protocols 1 27 Optional LocalTalk Interface 1 27 Operating Instructions 1 29 Ser Pri Control Panel 1 29 Display 1 29 Indicator Lights 1 30 Buttons 1 31 SelecType Functions 1 32 vice Mode 1 36 Hexadecimal Dump Mode 1 36 Language Setting Mode 1 36 Message Display 1 37 Warning Message 1 39 nter Sharing 1 40...

Страница 7: ...art for Interrupt 1 24 Figure l 9 Control Panel 1 29 Figure l l0 Port Fixed Mode 1 40 Figure l 11 Auto Sense Mode 1 41 Figure l 12 Emulation Switch by SPL 1 42 Figure l 13 Intelligent Emulation Switch 1 42 Figure l 14 Effects of BiRITech 1 43 Figure l 15 RITech Adjustment 1 43 Figure l 16 Component Layout 1 45 Figure l 17 C125 MAIN Board 1 46 Figure l 18 LocalTalk I F Board 1 47 Figure l 19 Contro...

Страница 8: ...er Types 1 9 Special Papers 1 9 Electrical Characteristics 1 10 Differences between EPSON GL 2 and HPLaserJet 4 Emulation GL 2 1 14 Built in Fonts 1 14 Parallel Interface Pin Assignments 1 19 Parallel Interface Pin Assignments 1 21 Serial Interface Connector Pin Assignments 1 26 LocalTalk Connector Pin Assignments 1 28 SelecType Functions 1 32 Status Messages 1 37 Error Messages 1 38 Warning Messa...

Страница 9: ... TrueType fonts ES C P 2 emulation High performance controller the CPU is a 17 6 MHz SPARKlite MB86930 Bi Resolution Improvement Technology BiRITech refines print quality by eliminating jagged edges from images and characters on 600 and 300 DPI printing Optional EPSONScript Level 2 PostScript compatible module EPSON Micro Gray Technology EMGTech refines the gray scale prin like 1200 DPI engine at ...

Страница 10: ...r mode between EPSON Script mode and another mode SPL Shared Printer Language enables switching of the printer mode by command The figure below shows an exterior view of the ActionLaser 1600 1 6 Figure 1 1 Exterior View of the Action Laser 1600 EPSON ActionLaser 1600 Service Manual ...

Страница 11: ...Print Features Table 1 1 lists the optional units available for the ActionLaser 1600 Table 1 1 Options for the Action Laser 1600 EPSON ActionLaser 1600 Service Manual 1 7 ...

Страница 12: ...graphy 600 300 DPI 6 PPM letter Less than 19 seconds face down output Less than 20 seconds face up output Less than 35 seconds at rated current and 73 F 23 C temperature Table 1 2 Paper Feed Methods Notes 1 lb ream weight 500 sheets of 17x 22 inch paper 1 g m2 0 2659763 lb 2 Paper size range width 3 63 to 8 5 inches 92 to 216 mm length 5 85 to 14 0 inches 148 5 mm to 356 mm 1 8 EPSON ActionLaser 1...

Страница 13: ... Features Table 1 3 Paper Types Table 1 4 Special Papers R Reliable feeding and good image quality P Possible but better avoided I Impossible Figure 1 2 Printable Area EPSON ActionLaser 1600 Service Manual 1 9 ...

Страница 14: ...s Table 1 5 Description Less than 0 01 ppm No toxicity exists in OPC toner or plastic materials Electrical Characteristics Rating Rated voltage I 100 12OVAC Input voltage range 90 132 VAC Rated frequency range 50 60 Hz Input frequency range 47 63 Hz P o w e r c o n s u m p t i o n Less than 500 W Power consumption in Less than 30 W standby mode without optional interface card and font cartridge Re...

Страница 15: ...line Printer should be installed on a level plane Illuminance 3 000 lux or less must not be exposed to direct sunlight Surrounding space Printer must have at least 4 inches 100 mm clearance on sides and rear E n v i r o n m e n t a l C o n d i t i o n s f o r S t o r a g e a n d T r a n s p o r t a t i o n E x c l u d i n g I m a g i n g C a r t r i d g e Temperature 32 to 95 F 0 to 35 C over full...

Страница 16: ...tal Law No CdS must be contained Specifications for Imaging Cartridge Life 6 000 pages Note In continuous printing mode with letter paper at a 5 image ratio black white ratio Life varies depending on printing mode continuous or intermittent and or image ratio Environmental Conditions for Storage and Transportation Temperature 32 to 86 F 0 to 30 C over full storage term 4 to 104 F 20 to 40 C under ...

Страница 17: ...2 D x 360 H mm 14 5 W x 25 9 D x 16 9 H inches 368 W x 657 D x 430 H mm Approximately 22 lb 10 kg consumables excluding all options Approximately 28 3 lb 12 8 kg Approximately 22 3 lb 10 1 kg Approximately 28 6 lb 12 9 kg Built in modes HP LaserJet 4 emulation PCL 5e EPSON GL 2 mode LJ4 GL 2 mode and GL like mode FX FX 870 l170 LX 100 emulation mode ESC P2 LQ 570 1070 mode Note EPSON GL 2 mode is ...

Страница 18: ... 7600 series plotter The GL like mode features all the commands of the LJ4 GL 2 mode plus a few additional commands The GL like mode emulates some of the HP GL plotter HP 7475A etc commands If the application software uses unsupported commands for the GL like mode print cannot be assured Optional modes EPSON Script Level 2 PostScript Level 2 emulation mode Auxiliary software Hex dump Status sheet ...

Страница 19: ...Printer Features Table 1 7 Built in Fonts Con t EPSON ActionLaser 1600 Service Manual 1 15 ...

Страница 20: ...BM DN PcMultilingual HP LaserJet 4 Mode Scalable Fonts 34 symbol sets Roman 8 Norwegl Italian ECM94 1 Swedis2 ANSI ASCII UK French2 German Legal 8859 2 ISO Spanish PsMath 8859 9 ISO WiTurkish MsPublishing VeMath DeskTop Math 8 WiE Europe PCTk437 Windows PsText IBM US IBM DN McText PCMultilingual VeInternational VeUS PiFont PCE Europe Symbol WiAnsi Wingdings 1 16 EPSON ActionLaser 1600 Service Manu...

Страница 21: ...gual 850 PCE Europe 852 PCPortuguese 860 BpBRASCII PCCanFrench 863 BpAbicomp PCNordic 865 Italic FX Mode 13 International Characters and 9 Code Tables USA SPAIN FRANCE JAPAN GERMANY NORWAY UK DENMARK2 DENMARK SPAIN2 SWEDEN LATIN AMERICA ITALY PCUSA 437 PCTurk2 857 PCMultilingual 850 PCE Europe 852 PCPortuguese 860 BpBRASCII PCCanFrench 863 BpAbicomp PCNordic 865 Italic EPSON ActionLaser 1600 Servi...

Страница 22: ...e following two modes Compatibility mode same as parallel interface for current EPSON page printer Reverse mode Compatibility Mode for Parallel Interface System STROBE synchronization 8 bit parallel data transfer Handshaking BUSY and ACKNOWLEDGE signals Connector type P90 25027 1 Amphenol receptacle Applicable plug 57 30360 Amphenol or equivalent Transfer speed About 400 000 bytes second max Figur...

Страница 23: ...fied through SelecType 11 BUSY OUT The BUSY signal informs the host computer of the printer state When the signal is HIGH the printer cannot accept data 12 PE OUT PE indicates paper empty for the standard cassette selected by SelecType or command or for the optional paper cassette Paper empty is indicated by HIGH 13 SLCT OUT Pulled up to 5 V through a 1 0K ohm resistor 14 AUTO FEED IN Not used 15 ...

Страница 24: ...E P1284 nibble mode This mode allows the printer to inform the host computer of printer status using EJL and PJL commands System IEEE P1284 nibble mode Connector type P90 25027 1 Amphenol receptacle Applicable plug 57 30360 Amphenol or equivalent 1 20 EPSON ActionLaser 1600 Service Manual ...

Страница 25: ...r to host computer 13 SLCT OUT Xflag The printer sends data bits 2 and 6 during data transfer to host computer 14 AUTO FEED IN HostBusy This signal informs the printer of the host computer s state When the signal is HIGH the host computer cannot accept data 15 NC Not used 16 GND Logic ground level 17 CHASSIS Connected to the printer chassis The printer chassis GND GND and the signal GND are connec...

Страница 26: ...Printer Features Figure 1 4 shows the parallel interface state switch diagram Figure 1 4 Parallel Interface State Switch Diagram 1 22 EPSON ActionLaser 1600 Service Manual ...

Страница 27: ...st value was 04h 3 HB DA Host Busy Data Available HB DNA Host Busy Data Not Available The figure below shows the timing chart for data transfer Figure 1 6 Timing Chart for Data Transfer Notes 1 This signal set to HIGH when no data is being sent This signal set to LOW during sending of data 2 This signal set to HIGH if the extension request value was 04h 3 HB DA Host Busy Data Available HB DNA Host...

Страница 28: ...ion The signal is HIGH for HB DNA The signal is LOW for HB DA The signal is set to HIGH if the extension request value was 04 h Idle LOW below shows the timing chart for an interrupt Figure 1 8 Timing Chart for Interrupt Note The signal is set to HIGH if the extension request value was 04h 1 24 EPSON ActionLaser 1600 Service Manual ...

Страница 29: ... length 7 or 8 bits Parity Odd even or none X ON X OFF can be combined with DTR control DTR control can be combined with X ON X OFF 300 600 1200 2400 4800 9600 19200 38400 57600 or 115200 bps Overrun error Processed as missing data and replaced by an asterisk Parity error Replaced by an asterisk Framing error Replaced by an asterisk Breaking character Ignored EPSON ActionLaser 1600 Service Manual ...

Страница 30: ...the DSR state Can always be set to be ignored with SelecType factory setting Ground Always ignored See Note 4 See Note 4 Not connected See Note 4 Not connected Signal output by printer When DTR is HIGH the printer can receive the RXD signal If SelecType settings do not specify DTR control the signal is HIGH while printer power is on When SelecType settings are used for DTR control DTR goes LOW for...

Страница 31: ...s cleared and the printer returns on line the signal returns to HIGH When SelecType is used to set the DTR control OFF DTR is always set HIGH The printer transmits TXD only when DSR is at the HIGH level DSR is always considered HIGH when the SelecType setting for DSR is OFF X ON X OFF transmission is independent from the DSR state X ON X OFF DC1 DC3 protocol SelecType is used to execute X ON X OFF...

Страница 32: ... Serial ASCII data output from the printer HIGH level when SD voltage is higher than SD voltage LOW level when SD voltage is less than SD voltage Logic 0 is SPACE and logic 1 is MARK MARK must be maintained between transmitted character codes 4 GND Ground 5 RXD IN Serial ASCII data input from the computer HIGH level when RD voltage is higher than RD voltage LOW level when RD voltage is less than R...

Страница 33: ...nd SelecType Control Panel The control panel gives you easy access to most common printer operations The panel consists of a liquid crystal display LCD indicator lights and buttons Figure 1 9 Control Panel Display A 20 character 5 x 7 dot matrix by l row liquid crystal display LCD that indicates printer status EPSON ActionLaser 1600 Service Manual 1 29 ...

Страница 34: ...Feed Indicates the data processing status for each interface channel S P and O ON Received data remains in the printer that has not been printed out OFF No printable data remains in the printer Flashing The printer is processing Continue Flashes when an error is detected or a maintenance procedure is needed An error message appears on the display at the same time 1 30 EPSON ActionLaser 1600 Servic...

Страница 35: ...is button is a short cut for the paper tray setting in the SelecType CONFIG menu This button alternates the function of certain buttons Changes to next available option in SelecType Changes to previous available option in SelecType Sets available option in SelecType When the printer is offline and the Form Feed light is lit press this button to print data in the printer buffer Pressing this button...

Страница 36: ... FEED OFF ON RITech OFF LIGHT MEDIUM DARK LJ4 FONT SRC RESIDENT CARTRIDGE DOWNLOAD FONT NUMBER 0 to available PITCH 0 44 to 99 99 CPI steps of 0 01 HEIGHT 4 00 to 999 75 PT steps of 0 25 SYMSET Roman 8 ECM94 1 8859 2 ISO IBM US IBM DN PCMultiling PCE Europe PCTk437 WiAnsi WiE Europe WiTurkish DeskTop PsText Velnternati VeUS MsPublishin Math 8 PsMath VeMath PiFont Legal UK ANSI ASCII Swedis2 Italia...

Страница 37: ...ain2 LatinAmerica Korea Legal AUTO CR ON OFF AUTO LF ON OFF ZERO CHAR 0 ø BIT IMAGE Dark Light Bar Code FX FONT Courier Prestige Orator S PITCH 10 CPI 12 CPI 15 CPI Prop CONDENSED ON OFF T MARGIN 0 40 to 1 50 inches steps of 0 05 TEXT 1 to available lines CG TABLE Italic PCUSA PCMultilin PCPortugues PCCanFrench PCNordic PCTurk2 PC E Europe BpBRASCll BpAbicomp COUNTRY USA France Germany UK Denmark ...

Страница 38: ...teps of 0 05 PEN2 0 05 to 5 00 mm steps of 0 05 PEN3 0 05 to 5 00 mm steps of 0 05 PEN4 0 05 to 5 00 mm steps of 0 05 PEN5 0 05 to 5 00 mm steps of 0 05 PEN6 0 05 to 5 00 mm steps of 0 05 JOB PAGE PROTECT OFF LT LGL A4 RESOLUTION 300 600 TIMEOUT 5 to 300 EMULATION PARALLEL LJ4 FX ESCP2 PS GL2 PS LJ4 PS FX PS ESCP2 PS GL2 SERIAL LJ4 FX ESCP2 PS GL2 PS LJ4 PS FX PS ESCP2 PS GL2 L T LJ4 FX ESCP2 PS G...

Страница 39: ... ENABLE DENSITY MEDIUM DARK DARKEST LIGHTEST LIGHT AUTO SENSE ON PARALLEL SERIAL L T AUX TOP OFFSET 0 to 99 LEFT OFFSET 0 to 99 TONER E F E F E F E F E F TONER LIFE 5000 to 9000 PAGE COUNT 0 to 99999999 SelecType INIT PARALLEL SPEED FAST LOW BI D ON OFF SERIAL SERIAL TYPE RS232C RS422 WORD LENGTH 8 7 BAUD RATE 9600 19200 38400 57600 115200 300 600 1200 2400 4800 PARITY NONE EVEN ODD STOP BIT 1 2 D...

Страница 40: ...adecimal dump is useful in troubleshooting Turn on the printer and the hold down On Line until HEX DUMP MODE displays on the LCD To exit hexadecimal dump mode turn the printer off or hold down the ALT RESET buttons until the RESET ALL message is displayed Language Setting Mode Language setting mode sets the language for panel display and status sheets Turn on the printer and hold down Menu until C...

Страница 41: ...dicates the printer s status and software mode Table 1 14 Status Messages Message Status SELF TEST internal self test RESET ALL Warm boot RESET Resetting RESET TO SAVE SelecType was changed while Feed light was on Press the RESET button to reset WARMING UP Warming up TONER LOW Detected toner low STANDBY Power down mode READY Normal condition EPSON ActionLaser 1600 Service Manual 1 37 ...

Страница 42: ...in either the standard or the optional cassette Over 25 pages printed after detection of toner low Paper in the selected tray is different from the paper size selection Engine speed faster than print image processing Confirm and press the CONTINUE button Add optional SIMM Remove cartridge and press CONTINUE Reinstall cartridge and press CONTINUE button Remove cartridge and press CONTINUE button Po...

Страница 43: ...s Message Status Measures CHECK PAPER SIZE Paper in the selected tray is different Press the CONTINUE button from the paper size chosen when SIZE IGNORE is set to OFF IMAGE OPTIMUM Insufficient memory has caused the Press the CONTINUE button printer to reduce print quality EPSON ActionLaser 1600 Service Manual 1 39 ...

Страница 44: ...hods of printer sharing which are selected with the SelecType AUTO SENSE menu Port Fixed Mode Figure 1 10 Port Fixed Mode When the printer is in port fixed mode only one interface port is active Data from other ports is ignored 1 40 EPSON ActionLaser 1600 Service Manual ...

Страница 45: ...ode E m u l a t i o n M o d e S w i t c h F u n c t i o n There are two types of emulation switch emulation switch with shared printer language SPL and intelligent emulation switch Emulation Switch with SPL There are two SPLs that can be used to switch emulation functions EJL EPSON Job Language This is EPSON s original language system It allows you to skip among various destinations as shown in Fi...

Страница 46: ...Neither EJL nor PJL switches the mode directly They first and return to EJL or PJL Then they enter another mode exit the current mode Figure 1 12 Emulation Switch by SPL Intelligent Emulation Switch The Intelligent Emulation Switch IES automatically switches emulation modes based on the data sent from the host computer through one of the interface channels It is can switch between PostScript and o...

Страница 47: ...alues in SelecType mode Figure 1 14 Effect of BiRITech Note BiRITech is not as effective for printing a mesh pattern or gray scale In such cases set BiRITech to OFF The default setting is MEDIUM Since the BiRITech effect depends on the toner condition adjust it when the imaging cartridge is replaced or after the imaging cartridge is used for a long time The following settings are available in Sele...

Страница 48: ...ing RAM chip sets you can increase the printer s memory to a total of 64 MB including the resident memory EPSON supplies several types of memory options or users can purchase other SIMMs from other vendors Be sure the SIMM meets the requirements listed below 72 pin type Capacity of one of the following 1 2 4 8 16 32MB Access speed of less than 70ns Within the following dimensions 1 42 height x 4 2...

Страница 49: ...n components are C125 MAIN Board Video controller circuit board Control Panel PWB A Board Engine controller circuit board PWB E Board Power supply circuit board PWB F Board High voltage supply circuit board Optical Unit Scanner and mirrors Fusing Unit Drive Unit Imaging Cartridge H o u s i n g Figure 1 16 Component Layout EPSON ActionLaser 1600 Service Manual 1 45 ...

Страница 50: ...he following memory chips and custom ICS are assigned to the 4GB memory space Memory chips Code ROMs four 4Mbit EPROMs IC7 8 15 18 or two 8Mbit mask ROMs IC21 22 Font ROMs two 8Mbit mask ROMs M80A74 IC4 M80A75 IC5 4Mbit DRAMs IC16 17 19 20 16Kbit EEPROM IC8 Custom ICs ASIC E05A91 IC9 ASIC E05A92 IC25 ASIC E05A93 IC24 Others RS 232C interface driver receiver ADM232 IC28 RS 422 interface driver rece...

Страница 51: ...k I n t e r f a c e M o d u l e The LocalTalk interface circuit board connects this printer to Apple Macintosh computers Main Chips 85C30 IC3 26LS30 IC1 26LS32 IC2 NJ U7660 IC4 Figure 1 18 LocalTalk I F Board EPSON ActionLaser 1600 Service Manual 1 47 ...

Страница 52: ...tures C o n t r o l P a n e l The control panel includes a 20 column x l row LCD panel that displays error messages or printer operation status 1 48 Figure 1 19 Control Panel EPSON ActionLaser 1600 Service Manual ...

Страница 53: ...tor image synchronization laser beam pulse width and power Figure 1 20 PWB A Board P W B E B o a r d The PWB E is the power supply board which consists of a switching regulator circuit It converts the AC line voltage into 24 V and 5 VDC voltages CAUTION Do not touch VR1E on PWB E board This volume is for factory setting only Figure 1 21 PWB E B o a r d EPSON ActionLaser 1600 Service Manual 1 49 ...

Страница 54: ...y setting only Optical Unit The optical unit consists of the laser diode semi conductor laser the scanner motor which drives the scanner mirror for laser scanning and several other mirrors and lenses The laser beam generated by the laser diode is conducted to the OPC drum surface by the scanner mirror as well as several other mirrors and lenses to create a latent electro photographic image on the ...

Страница 55: ... a heater lamp thermistor and thermal fuse Figure 1 24 Fusing Unit Drive Unit The drive unit consists of the main motor and a series of gears and clutches It drives the paper transport rollers OPC drum sleeve roller fising roller and some other mechanisms Figure 1 25 Drive Unit EPSON ActionLaser 1600 Service Manual 1 51 ...

Страница 56: ...nd cleaning are integrated into this imaging cartridge Figure 1 26 Imaging Cartridge Lower Paper Cassette The optional lower paper cassette allows you to feed up to an additional 250 sheets of A4 or letter size paper into this printer 1 52 Figure 1 27 Lower Paper Cassette EPSON ActionLaser 1600 Service Manual ...

Страница 57: ...for feeding single sheets of paper types such as envelopes transparencies labels or heavy paper The face up feeding method reduces curling and the tray catches the paper at the paper ejection area at the top back of the printer Figure 1 28 Face Up Output Tray EPSON ActionLaser 1600 Service Manual 1 53 ...

Страница 58: ...Printer Features 1 54 EPSON ActionLaser 1600 Service Manual ...

Страница 59: ...7 Fuser Control 2 18 Scanner Mirror Motor Control 2 19 Laser Diode Drive 2 20 Bias Voltages and Laser Drive Timing 2 22 Fan Motor Control Power Supply Circuit Function and Safe V i d e o C o n t r o l l e r O p e r a t i o n C 1 2 5 M A I N B o a r d O p e r a t i o n 2 25 y Protection 2 25 2 26 2 27 Reset Circuit 2 30 Bus Control Circuit 2 30 Interrupt Control 2 31 DRAM Management 2 31 Parallel I...

Страница 60: ...ositions 2 15 PC Drive Section 2 15 Developing Section 2 15 Fusing Drive Section 2 15 Feeding Drive Section 2 15 Feeding Drive Option 2 15 Main Motor Drive Circuit 2 16 Paper Take up Sensor and Paper Exit Sensor On Off Timing 2 17 Fuser Control Circuit 2 18 Fuser Temperature Control 2 19 Scanner Motor Control Circuit 2 19 Scanner Motor Driving Start Timing 2 20 Laser Diode Drive Circuit 2 20 LDATA...

Страница 61: ...Principles of Operation T a b l e s Table 2 l Gears and Rollers 2 16 Table 2 2 Functions of the Major Components of the C125 MAIN Board 2 28 EPSON ActionLaser 1600 Service Manual 2 3 ...

Страница 62: ...Principles of Operation 2 4 EPSON ActionLaser 1600 Service Manual ...

Страница 63: ...1 Face down exit roller Upper fising roller Heater lamp H1 Face up face down switching guide Face up tray option Face up exit roller Fusing separator Paper exit sensor PC3 16 Lower fusing roller 17 Toner empty sensor 18 Cooling fan 19 Image transfer roller 20 Main motor Ml 21 Lower paper cassette 22 Paper take up sensor 23 Transport roller option PC2 24 Transport roller for option 25 Paper take up...

Страница 64: ... r i n t P r o c e s s This section describes the print process from paper feeding to paper exit Figure 2 2 shows a diagram of the print process Figure 2 2 Diagram of the Print Process 2 6 EPSON ActionLaser 1600 Service Manual ...

Страница 65: ...ed the paper take up roller rotates and feeds the first page The paper take up roller stops after one rotation Unlike the EPL 7000 7500 and EPL 8000 which have a synchronizing roller the ActionLaser 1600 has no synchronizing roller installed The timing to align the leading edge of the page with image is detected by the paper take up sensor When a page is on top of the paper take up sensor the dete...

Страница 66: ...roller stops after one rotation the transport rollers continue to feed the first page because these rollers are independent of the paper take up roller At this time the depression cam attached to the paper take up roller depresses the paper lift up plate to prevent the feeding of a second sheet Figure 2 3 Paper Feeding from the Multi purpose Tray 2 8 EPSON ActionLaser 1600 Service Manual ...

Страница 67: ...ble of handling the paper size however The lower paper cassette unit can hold letter or A4 paper The driving force for paper feeding and All electrical controls are performed on connector transport is from the transmission gear the printer side through the coupling Figure 2 4 Paper Feeding from the Lower Cassette EPSON ActionLaser 1600 Service Manual 2 9 ...

Страница 68: ... brush charge method rather than the corona charge method to charge the drum In the brush charge method there is no generation of ozone as a result of corona discharge This method also allows the drum to be charged at a low voltage because a direct electric load is applied to the PC drum Figure 2 5 Drum Charge 2 10 EPSON ActionLaser 1600 Service Manual ...

Страница 69: ...e image uniform Figure 2 6 Laser Exposure Development Development is the process of creating a toner image on the PC drum by applying toner to the invisible static electric image The doctor blade spreads a thin even coat of toner over the flexible sleeve When the toner passes between the doctor blade and the flexible sleeve it becomes negatively charged The flexible sleeve transports toner to the ...

Страница 70: ...r image transfer method instead of corona image transfer as the image transfer process In roller image transfer there is no generation of ozone as there is with corona discharge Also there is no blurring caused by motion in the image transfer because the image transfer roller is maintained for the pressure bonding of the paper with the PC drum A reverse bias voltage is applied so that the positive...

Страница 71: ...ler method fixes the toner image with an upper fising roller that is heated by the heater lamp After power is turned on the heater lamp lights up until the temperature of the upper fising roller reaches 165 C 329 F After warm up the mechanical control board controls the ON OFF operation of the heater lamp based on the TH1 signals from the thermistor Figure 2 9 Fusing EPSON ActionLaser 1600 Service...

Страница 72: ...d to the face down tray or This section describes engine control the power supply board and the high voltage supply board The engine is controlled by engine controller board PWB A board Figure 2 10 shows an engine controller connection diagram Figure 2 10 Engine Controller Connection Diagram 2 14 EPSON ActionLaser 1600 Service Manual ...

Страница 73: ...per slot feeding drive and the lower paper cassette option feeding drive Figures 2 11 through 2 16 show the positions of the gears and rollers Figure 2 11 Gear and Roller Positions Figure 2 14 Fusing Drive Section Figure 2 12 PC Drive S e c t i o n Figure 2 15 Feeding Drive Section Figure 2 13 Developing Section Figure 2 16 Feeding Drive Option EPSON ActionLaser 1600 Service Manual 2 15 ...

Страница 74: ...e up Roller 13 23 Transport Roller 27 28 Transport Roller 14 16 75 28 14 Image Transfer Roller Optional lower paper cassette Figure 2 17 shows the main motor drive circuit The main motor Ml is a four phase stepping motor This motor is controlled by the CPU IC1A on the engine controller board PWB A The power supply board PWB E has a stepping motor driver IC This IC drives the main motor M1 The main...

Страница 75: ... If the paper take up sensor does not turn on for paper feeding the printer detects a feed jam A feed jam is a paper jam that has occurred in the feed process If any of the following conditions is detected the printer detects a paper jam A paper jam is a jam that occurs in the printing process area Ž The paper take up sensor PC2 or the paper exit sensor PC3 is on at power on or when the upper case...

Страница 76: ...er supply board PWB E supplies the AC voltage to the heater lamp This AC voltage is cut by the interlock switch when the case is open The fuser temperature is detected by the thermistor Based on the TH1 signals from the thermistor the engine controller board PWB A controls the fusing temperature 165 C 329 F using the FUSER LAMP signal Figure 2 19 Fuser Control Circuit 2 18 EPSON ActionLaser 1600 S...

Страница 77: ...does not end within 120 seconds The thermistor temperature drops to 130 C 266 F The thermistor temperature exceeds 200 C 392 F The thermo fise TF1 cuts power if the temperature of the fusing section rises to an abnormally high level over 200 C 392 F Scanner Mirror Motor Control Figure 2 21 is the scanner mirror motor M2 control circuit The scanner mirror motor is driven while the scanner motor rec...

Страница 78: ...diode emission is controlled by three signals L DATA DA1 and DA2 from the engine controller board PWB A Figure 2 23 Laser Diode Drive Circuit The L DATA signal is the laser on off signal When it is LOW the laser emits and when it is HIGH laser stops emitting L DATA is the combination of the two signals in the figure below If the VIDEO or the FORCED LASER DIODE ON signal is activated LOW the L DATA...

Страница 79: ...s and 0 1 seconds is after the scanner mirror motor M2 turns on At this time laser emission power is adjusted LDVR1 and LDVR2 are the laser emission power adjust signals they are analog signals LDVR1 is tuning LDVR2 is fine tuning Figure 2 25 Laser Emission Power Adjustment Timing EPSON ActionLaser 1600 Service Manual 2 21 ...

Страница 80: ...ch cuts the 24 VDC which in turn cuts the bias voltages These bias voltages are controlled by the engine controller board PWB A The CH2 ON HV T signal is the image transfer roller bias voltage control While this signal is LOW the image transfer roller is charged to 3 2K VDC by the high voltage supply circuit And while this signal is HIGH the image transfer roller is charged to 0 8K VDC The CH1 ON ...

Страница 81: ... the print process and Figure 2 29 is the power on sequence During the power on sequence initialization the printer detects mechanical errors Figure 2 28 Print Process Figure 2 29 Power On Sequence EPSON ActionLaser 1600 Service Manual 2 23 ...

Страница 82: ...ne starts printing when from the video controller board Figure 2 30 Print Sequence Start Figure 2 31 is the end of the print sequence The printer stops the main motor Ml from rotating when the paper exit sensor turns off after 2 53 seconds Figure 2 31 Print Sequence End 2 24 EPSON ActionLaser 1600 Service Manual ...

Страница 83: ...eed 150m V for 1 second the printer indicates a fan motor malfunction Figure 2 33 Fan Motor Malfunction Search Timing Power Supply Circuit Function and Safety Protection The printer s power supply board PWB E supplies the 5 VDC and 24 VDC The 24 VDC is used as the bias voltage supply main motor Ml drive scanner mirror motor M2 drive fan motor M3 drive and solenoid drive For safety protection the 2...

Страница 84: ...oller section is separate in the C125 MAIN board and the control panel The control panel is connected to the engine controller board PWB A but is controlled by the C125 MAIN board which sends the signals for the control panel through the engine controller board 2 26 Figure 2 35 Video Controller Block Diagram EPSON ActionLaser 1600 Service Manual ...

Страница 85: ...N board The C125 MAIN board contains the video controller which consists of a SPARKlite 17 6 MHz 32 bit bus MB86930 RISC CPU the standard cells gate arrays developed for this printer DRAMs ROMs and a 16 K bit EEPROM Figure 2 36 C125 MAIN Board Block Diagram EPSON ActionLaser 1600 Service Manual 2 27 ...

Страница 86: ...05A93 ASIC IC24 This ASIC contains the following functions Video interface Bi parallel interface RS 232C interface RS 422 interface LocalTalk module control Type B interface card control Control panel control Two 8M ROMs IC21 22 These ROMs are code ROMs or or four 4M ROMs IC7 8 18 15 Two 8M ROMs IC4 5 These ROMs are font ROMs EEPROM IC10 This EEPROM stores the following Model type Printed page cou...

Страница 87: ...o small that the CPU cannot process data faster than it is transmitted to the engine controller board If such an error occurs increase the V RAM using SelecType PAGE PROTECT The E05A91 transmits image data stored in the V RAM to E05A92 The E05A92 changes the image data format from 32 bit parallel data to serial data and stores it in the internal temporary buffer The temporary buffer has a capacity...

Страница 88: ...ess than 4 25 V is detected The reset time is approximately 128 ms Figure 2 38 Reset Circuit Bus Control Circuit The MB86930 CPU outputs the R W read write signal AS address strobe signal and BE0 BE1 BE2 and BE3 signals byte enables to the ASIC E05A91 The ASIC E05A91 uses these signals to generate the RD read strobe signal WR write strobe signal READY signal Figure 2 39 Bus Control Circuit 2 30 EP...

Страница 89: ...other value the CPU processes a maskable interrupt DRAM Management The video controller uses DRAMs for system RAM and for V RAM In this printer a standard four 512K x 8 DRAMs are mounted in locations IC20 IC19 IC17 and IC16 providing a total of 2MB SIMM sockets 1 CN8 and 2 CN9 are the optional SIMM sockets which can use 1 2 4 8 16 32 MB 32 bit bus SIMMs The DRAMs including optional SIMMs are manag...

Страница 90: ... data from the E05A93 so that the printer is ready to receive more data from the host computer Figure 2 41 Parallel Interface Circuit RS 232C Circuit This circuit uses the RS 232C receiver driver IC ADM232 IC28 to change the signal level from the RS 232C signal level 12 VDC or 12 VDC to the TTL signal level 0 V or 5 V or from the TTL signal level to the RS 232C signal level This IC converts 5 VDC ...

Страница 91: ...a Figure 2 43 RS 422 Circuit LocalTalk Circuit The LocalTalk circuit is an optional I F board that uses three ICS 85C30 IC3 26LS30 IC1 and 26LS32 IC2 The 85C30 IC3 changes parallel data to serial data or serial data to parallel data It is controlled by the E05A93 IC24 on C125 MAIN board The 26LS30 IC1 and 26LS32 IC2 are ICS used to change signal levels from the TTL signal level to LocalTalk signal...

Страница 92: ...f the internal video interface circuit the C125 MAIN board and engine controller board can be broadly divided into four groups The first group PRINT CPRDY EPRDY and PRDY gives the status of either the video controller or engine controller and indicates whether they are ready to communicate with each other or ready to start the printing operation The second group VSYNC HSYNC is the synchronizing si...

Страница 93: ...ng Removal 3 11 Case Removal 3 11 Rear Frame Removal 3 13 Disassembling the Engine 3 14 Engine Controller Board PWB A Removal 3 14 P o w e r S u p p l y U n i t P W B E R e m o v a l 3 1 5 Interlock Switch Removal 3 16 Optical Unit Removal 3 17 Paper Empty Sensor Removal 3 18 High Voltage Supply Board PWB F Removal 3 19 Main Motor Ml Removal 3 20 Fan Motor M3 Removal 3 21 Fusing Unit Removal 3 22 ...

Страница 94: ... 21 Figure 3 22 Figure 3 23 Figure 3 24 TABLES Removing the Engine Controller Board PWB A 3 14 Removing the Power Supply Unit 3 15 Removing the Interlock Switch 3 16 Removing the Optical Unit 3 17 Removing the Paper Empty Sensor 3 18 Removing the High Voltage Supply Board 3 19 Removing the Main Motor 3 20 Removing the Fan Motor 3 21 Removing the Fusing Unit 3 22 Disassembling the Fusing Unit l 3 2...

Страница 95: ...c terminals or high voltage components such as the charger and the high voltage unit Caution 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 optical unit Never turn power on if the optical unit is not installed To prevent damage to ICs from static electricity do not touch the ICs on the circuit ...

Страница 96: ...ollowing sections abbreviations are used for small parts such as screws and washers Tables 3 2 and 3 3 list these abbreviations Table 3 2 Abbreviations Used for Screws Abbreviation Part Name CP Cross recessed Pan head CC Cross recessed Cup head CP O Cross recessed Pan head with Outside toothed lock washer CP S P1 Cross recessed Pan head with Spring lock washer and 1 Plain washer CCB Cross recessed...

Страница 97: ...Disassembly and Assembly EPSON ActionLaser 1600 Service Manual 3 5 ...

Страница 98: ... on font sample cartridge printing Data print Does data print in all modes Adjustment Print position Is the gap between the top edge of the paper and the horizontal line in the FACT SHEET print exactly 0 56 inch 14 3 mm ROM Is it the latest ROM version version Cleaning Has toner and dust been removed from the paper path Is the lens on the optical unit clean Is the paper take up roller clean Is the...

Страница 99: ...ideo Controller Board C125 MAIN Board Removal Caution Before you remove the video controller board make sure that you remove any optional cards or cartridges Otherwise you may damage the cartridge or card connectors on the board as well as the cartridge or card itself 1 Turn the printer so that its left side faces you 2 Remove the 2 SCB M3 x 14 screws securing the interface card cover then pull of...

Страница 100: ...Disassembly and Assembly 5 Grasp the board with both hands and pull it out of its slot Figure 3 3 Pulling the Tab 3 8 Figure 3 4 Removing the Video Controller Board EPSON ActionLaser 1600 Service Manual ...

Страница 101: ...C125 MAIN board Refer to pages 3 7 and 3 8 2 Remove 2 CP M3 x 5 screws from the LocalTalk module 3 Remove the LocalTalk module from the video controller board C125 MAIN board Figure 3 5 Removing the 2 Screws Figure 3 6 Removing the LocalTalk Module EPSON ActionLaser 1600 Service Manual 3 9 ...

Страница 102: ...ng cartridge to protect it from light or place it in a dark area 2 Remove 1 CC M3 x 8 screw from the control panel 3 Lift the control panel and then remove connector CN3 on the engine controller board PWB A 4 Remove the control panel 3 10 Figure 3 7 Removing the Control Panel EPSON ActionLaser 1600 Service Manual ...

Страница 103: ... Cover the imaging cartridge to protect it from light or place it in a dark area Remove the control panel Refer to page 3 10 Remove the paper cover Remove 3 CC M3 x 8 screws for the paper guide case and remove the paper guide case Loosen 2 CC M3 x 8 screws and the front cover Loosen 1 CCB M3 x 8 screw remove 2 CC M3 x 8 screws and remove the right cover Remove 3 CC M3 x 8 screws and the left cover...

Страница 104: ...Disassembly and Assembly Figure 3 8 Removing the Housing 3 12 EPSON ActionLaser 1600 Service Manual ...

Страница 105: ...ace it in a dark area 3 Remove the control panel Refer to page 3 10 4 Remove the paper cover 5 Remove the right cover and left cover Refer to pages 3 11 and 3 12 6 Remove the top cover 7 Remove 6 CP 0 M3 x 6 screws and lift the rear frame 8 Disconnect connector CN1 on the power supply board PWB E and connector CN2 on the high voltage supply board PWB F Figure 3 9 Removing the Rear Frame EPSON Acti...

Страница 106: ...imaging cartridge Cover the imaging cartridge to protect it from light or place it in a dark area 3 Remove the control panel Refer to page 3 10 4 Remove the paper cover 5 Remove the right cover 6 Disconnect connectors engine controller board 7 8 Refer to pages 3 11 and 3 12 CN2 CN6 CN7 CN9 CN8 CN5 and CN4 on the PWB A Remove 4 CC M3 x 6 screws on the engine controller board PWB A Remove the engine...

Страница 107: ...l Refer to page 3 10 3 Remove the paper cover 4 Remove the right cover Refer to pages 3 11 and 3 12 5 Disconnect connectors CN1 CN4 and CN2 on the power supply board PWB E and CN8 on engine controller board PWB A 6 Disconnect the connectors for the interlock switch 7 Remove 2 CP 0 M3 x 6 screws and remove the power supply unit Figure 3 11 Removing the Power Supply Unit EPSON ActionLaser 1600 Servi...

Страница 108: ...it in a dark area 2 Remove the control panel Refer to page 3 10 3 Remove the paper cover 4 Remove the right cover Refer to pages 3 11 and 3 12 5 Remove the power supply unit Refer to page 3 15 6 Remove 2 CC M3 x 16 screws for the interlock switch and remove interlock switch Figure 3 12 Removing the Interlock Switch the 3 16 EPSON ActionLaser 1600 Service Manual ...

Страница 109: ...en the 2 screws shown in position B in the figure below 1 2 3 4 5 6 Open the top cover Remove the imaging cartridge Cover the imaging cartridge to protect it from Remove the control panel Remove the paper guide light or place it in a dark area Refer to page 3 10 Remove the paper guide case Refer to pages 3 11 and 3 12 Disconnect connector CN5 on the engine controller board PWB A Remove 2 CC M3 x 6...

Страница 110: ...e the control panel Refer to page 3 10 3 Remove the paper cover 4 Remove the paper guide case Refer to pages 3 11 and 3 12 5 Remove the power supply unit Refer to page 3 15 6 Remove the optical unit Refer to page 3 17 7 Remove the paper empty sensor 8 Disconnect the connector for the paper empty sensor 3 18 Figure 3 14 Removing the Paper Empty Sensor EPSON ActionLaser 1600 Service Manual ...

Страница 111: ... Remove the right cover and left cover Refer to pages 3 11 and 3 12 Remove the top cover Refer to pages 3 11 and 3 12 Remove the rear frame Refer to page 3 13 Disconnect connectors CN1 CN3 the red wire terminal and the black wire terminal on the high voltage supply board PWB F Remove 3 CP M3 x 8 screws on the high voltage supply board and remove the high voltage supply board PWB F Figure 3 15 Remo...

Страница 112: ...Refer to page 3 10 3 Remove the paper cover 4 Remove the right cover and left cover Refer to pages 3 11 and 3 12 5 Remove the top cover Refer to pages 3 11 and 3 12 6 Remove the rear frame Refer to page 3 13 7 Remove 3 CP S P1 M3 x 6 screws for main motor Ml 8 Lift main motor Ml and disconnect the connector for main motor Ml Figure 3 16 Removing the Main Motor 3 20 EPSON ActionLaser 1600 Service M...

Страница 113: ...rea 2 Remove the control panel Refer to page 3 10 3 Remove the paper cover 4 Remove the right cover and left cover Refer to pages 3 11 and 3 12 5 Remove the top cover Refer to pages 3 11 and 3 12 6 Remove the rear frame Refer to page 3 13 7 Remove 2 CCB M3 x 8 screws and remove the fan motor M3 Figure 3 17 Removing the Fan Motor EPSON ActionLaser 1600 Service Manual 3 21 ...

Страница 114: ...ve the right cover and left cover Refer to pages 3 11 and 3 12 5 Remove the top cover Refer to pages 3 11 and 3 12 6 Remove the rear frame Refer to 3 13 7 Disconnect the connector for the thermistor in the fusing unit the connector for the paper exit sensor and CN4 on the power supply board PWB E 8 Remove 2 CP O M3 x 6 screws on the fusing unit and remove the fusing unit Figure 3 18 Removing the F...

Страница 115: ... to page 3 22 2 Remove the paper exit sensor 3 Remove 2 CC M3 x 6 screws for the side covers and remove the side covers Caution Do not touch the class surface of the lamn with vour bare hands 4 Remove 2 CC M3 x 6 screws on the heater lamp support plate and remove the heater lamp support plate 5 Remove the heater lamp Figure 3 19 Disassembling the Fusing Unit 1 EPSON ActionLaser 1600 Service Manual...

Страница 116: ...s on the guide plate and remove the guide plate 7 Remove 2 springs and 2 bushings on the lower fusing roller and remove the lower fising roller 8 Remove 2 C rings and 2 bushings on the upper fusing roller and remove the upper fusing roller Figure 3 20 Disassembling the Fusing Unit 2 3 24 EPSON ActionLaser 1600 Service Manual ...

Страница 117: ...age 3 22 2 Slide the image transfer assembly to the left lift up the right side and remove the image transfer assembly 3 Remove the image transfer roller Figure 3 21 Removing the Image Transfer Assembly Figure 3 22 Removing the Image Transfer Roller EPSON ActionLaser 1600 Service Manual 3 25 ...

Страница 118: ...red wire terminal and the black wire terminal on the high voltage supply board PWB F 7 Disconnect connector CN4 on the engine controller board PWB A 8 Remove the 2 CC M3 x 8 screws for the bracket 9 Remove the guide plate and the paper empty sensor flag 10 Remove 2 CC M3 x 8 screws on the paper take up assembly 11 Slide the paper take up assembly to the right lift the left side up and remove the p...

Страница 119: ...E ring on the paper take up clutch and remove the paper take up clutch 14 Remove 2 E rings and left bushings on the paper take up roller shaft 15 Remove the paper take up roller Figure 3 24 Removing the Paper Take Up Roller EPSON ActionLaser 1600 Service Manual 3 27 ...

Страница 120: ...Disassembly and Assembly 3 28 EPSON ActionLaser 1600 Service Manual ...

Страница 121: ... 1 Print Position Adjustment 4 3 Figure 4 2 Opening the Upper Unit and Paper Cover and Removing 1 Screw 4 4 Figure 4 3 Holding the Control Panel and Adjusting VR1A 4 4 Figure 4 4 Closing the Paper Cover and the Upper Unit 4 4 EPSON ActionLaser 1600 Service Manual 4 1 ...

Страница 122: ...Adjustments 4 2 EPSON ActionLaser 1600 Service Manual ...

Страница 123: ... engine controller board PWB A is replaced be sure to readjust the print position following the procedure below 1 Print a status sheet using SelecType 2 Check that the registration gap between the leading edge of the page and the printed horizontal line is the correct following value Letter paper 0 56 0 10 inch 14 3 2 5 mm If not adjust the print position as described in the next few steps Figure ...

Страница 124: ...oard PWB A so that the vertical gap from the top edge of the paper to the print position of the horizontal line becomes 0 56 inches 14 3 mm for ActionLaser 1600 Turn VR1A clockwise to decrease the print position gap Turn VR1A counterclockwise to increase the gap 6 Turn on the printer Figure 4 3 Holding the Control Panel Figure 4 4 Closing the Paper Cover 4 4 EPSON ActionLaser 1600 Service Manual ...

Страница 125: ... to again check the print position 8 Repeat steps 3 to 7 until the print position is 0 56 inches 14 3 mm 9 Reattach the control panel securing it with the 1 screw close the paper cover and close the upper unit EPSON ActionLaser 1600 Service Manual 4 5 ...

Страница 126: ... 15 The LCD Displays SERVICE REQ E0003 5 10 Table 5 16 The LCD Displays SERVICE REQ E0004 5 11 Table 5 17 The LCD Displays SERVICE REQ E0005 5 11 Table 5 18 The LCD Displays SERVICE REQ E0006 5 12 Table 5 19 The LCD Displays SERVICE REQ E0009 5 12 Table 5 20 The LCD Displays SERVICE REQ E0014 5 12 Table 5 21 The LCD Displays SERVICE REQ C0003 5 12 Table 5 22 The LCD Displays SERVICE REQ C0007 5 12...

Страница 127: ...he LCD Displays SERVICE REQ C1310 5 15 Table 5 36 The LCD Displays SERVICE REQ C1320 5 15 Table 5 37 The LCD Displays Another SERVICE REQ Error 5 15 Table 5 38 Print Quality Anomalies 5 16 5 2 EPSON ActionLaser 1600 Service Manual ...

Страница 128: ...the LCD panel Table 5 1 lists the messages that tell you if service maintenance is required Table 5 1 Messages Requiring Service Maintenance Error No Source of Problem Error Type E0003 Fusing unit Engine error E0004 Main motor E0005 Fan motor E0006 Scanner mirror motor E0009 Laser light EOO14 Communication for engine controller and video controller C0001 CPU reserved Video controller error C0002 C...

Страница 129: ...ller error Software error Special Troubleshooting Tools If you want to check to the component level an extension cable is available for this printer to let you check video controller board waveforms You can remove the video controller C125 MAIN board from the board slot and still check its waveforms by connecting the board to the engine with this cable The following table shows the extension cable...

Страница 130: ...M ERROR 5 13 EEPROM ERROR The LCD displays EEPROM ERROR at power on 5 14 SERVICE REQ E0003 The LCD displays SERVICE REQ E0003 5 15 SERVICE REQ E0004 The LCD displays SERVICE REQ E0004 5 16 SERVICE REQ E0005 The LCD displays SERVICE REQ E0005 5 17 SERVICE REQ E0006 The LCD displays SERVICE REQ E0006 5 18 SERVICE REQ E0009 The LCD displays SERVICE REQ E0009 5 19 SERVICE REQ E0014 The LCD displays SE...

Страница 131: ...Connector CN8 on PWB A board may be disconnected PWB E board may be dead PWB A board may be dead Step 1 2 3 4 5 Checkpoint Is connector CN1 on the PWB E board disconnected Is fuse blown on the PWB E board Is connector CN8 on the PWB A board disconnected With the power on is there an output of 5 VDC between pin 8 and pin 5 for CN8 on PWB A board Finding Yes Yes Yes No Table 5 5 The Printer Does Not...

Страница 132: ... board may be dead Step 1 2 3 Checkpoint Is paper empty sensor flag position OK Finding No Table 5 8 The LCD Displays ILLEGAL CART Solution Connect the terminal connector on the interlock switch Reseat the interlock switch Replace the interlock switch Replace the PWB E board Solution Reseat the paper empty sensor flag Replace the paper empty sensor Replace Cause Step Checkpoint Finding Solution Th...

Страница 133: ...rminal of the multimeter on pin 7 of connector CN6 on the PWB A board 3 Place the terminal of the multimeter on pin 5 GND With power on does the multimeter detect any current Paper take up sensor flag 3 Is paper take up sensor flag No Reseat the paper position may be incorrect position incorrect take up sensor flag Paper take up roller may 4 Replace the paper be bad take up roller Table 5 10 The L...

Страница 134: ... may be bad Table 5 11 The LCD Displays PAPER JAM at Power On Cause Step Checkpoint Finding Solution The paper take up sensor 1 Is the paper take up sensor No Reposition the flag position may be flag position OK paper take up incorrect sensor flag The paper exit sensor flag 2 Is the paper exit sensor flag No Reposition the position may be incorrect position OK paper exit sensor flag The paper take...

Страница 135: ...IMM may 1 Is the operation OK after you Yes Replace the SIMM be bad remove the optional SIMM The standard RAM may 2 Replace the Cl 25 be bad MAIN board Table 5 14 The LCD Displays EEPROM ERROR Cause Step Checkpoint Finding Solution The EEPROM on the C125 1 Replace it MAIN board may be bad Table 5 15 The LCD Displays SERVICE REQ E0003 Cause Step Checkpoint Finding Solution The connector for the 1 I...

Страница 136: ...Troubleshooting Table 5 16 The LCD Displays SERVICE REQ E0004 Table 5 17 LCD Displays SERVICE REQ E0005 EPSON ActionLaser 1600 Service Manual 5 11 ...

Страница 137: ... SERVICE REQ E0006 Table 5 19 The LCD Displays SERVICE REQ E0009 Table 5 20 The LCD Displays SERVICE REQ E0014 Table 5 21 The LCD Displays SERVICE REQ C0003 Table 5 22 The LCD Displays SERVICE REQ C0007 5 12 EPSON ActionLaser 1600 Service Manual ...

Страница 138: ... SERVICE REQ C1000 Table 5 24 The LCD Displays SERVICE REQ C1110 Table 5 25 The LCD Displays SERVICE REQ C1120 Table 5 26 The LCD Displays SERVICE REQ C1130 Table 5 27 The LCD Displays SERVICE REQ C1140 EPSON ActionLaser 1600 Service Manual 5 13 ...

Страница 139: ... SERVICE REQ C1150 Table 5 29 The LCD Displays Service REQ C1160 Table 5 30 The LCD Displays SERVICE REQ C1170 Table 5 31 The LCD Displays SERVICE REQ C1180 Table 5 32 The LCD Displays SERVICE REQ C1190 5 14 EPSON ActionLaser 1600 Service Manual ...

Страница 140: ...roubleshooting Print Quality Anomalies This section describes how to isolate print quality problems from the possible causes Table 5 38 Print Quality Anomalies 5 16 EPSON ActionLaser 1600 Service Manual ...

Страница 141: ...Troubleshooting Table 5 38 Print Quality Anomalies cont EPSON ActionLaser 1600 Service Manual 5 17 ...

Страница 142: ...Troubleshooting Table 5 38 Print Quality Anomalies cont 5 18 EPSON ActionLaser 1600 Service Manual ...

Страница 143: ...Troubleshooting Table 5 38 Print Quality Anomalies cont EPSON ActionLaser 1600 Service Manual 5 19 ...

Страница 144: ...6 l External Cleaning 6 3 Figure 6 2 Cleaning Optical Unit Lens 6 3 Figure 6 3 Removing the Imaging Cartridge 6 4 Figure 6 4 Shaking the Imaging Cartridge 6 4 Figure 6 5 Removingthe Clear Seal 6 5 Figure 6 6 Inserting the Imaging Cartridge 6 5 Tables Table 6 1 Periodic Service Maintenance 6 5 Table 6 2 Cleaning Parts and Procedures 6 6 EPSON ActionLaser 1600 Service Manual 6 1 ...

Страница 145: ...Maintenance 6 2 EPSON ActionLaser 1600 Service Manual ...

Страница 146: ...nance repair U s e r M a i n t e n a n c e Users can achieve maximum print quality from the printer by following the procedures below Cleaning This section describes the cleaning required for optimal print quality External Cleaning Be sure to disconnect the printer from the power outlet before cleaning it Wipe the cover and external parts of the printer with a damp cloth that has been soaked in a ...

Страница 147: ...remove the imaging cartridge by pulling it out Dispose of the used imaging cartridge While holding the new imaging cartridge horizontally gently shake it a few times to distribute the toner evenly Set the imaging cartridge on a clean flat surface Firmly grip the tab on the left side of the cartridge Pull the clear seal all the way out with firm even pressure as shown Figure 6 3 Removing the Imagin...

Страница 148: ...y are subject to fictional deterioration as the total number of printed pages increase resulting in bad print quality Table 6 1 Periodic Service Maintenance The service interval listed above is only a reference value You do not need to perform service maintenance exactly at this time Cleaning Some parts of this printer require regular cleaning Clean each part using the specified method and tools R...

Страница 149: ...Maintenance Table 6 2 Cleaning Parts and Procedures 6 6 EPSON ActionLaser 1600 Service Manual ...

Страница 150: ... MAIN Board Component Layout Front Side C125 MAIN Board Component Layout Rear Side Exploded Diagram l A 21 A 22 A 23 A 24 A 25 A 26 A 27 Exploded Diagram 2 A 28 Figure A 12 Exploded Diagram 3 A 29 Figure A 13 Exploded Diagram 4 A 30 Figure A 14 Exploded Diagram 5 A 31 Figure A 15 Exploded Diagram 6 A 32 Tables Table A 1 Board Connector Summary A 5 Table A 2 CN3 Pin Assignments A 6 Table A 3 CN4 Pi...

Страница 151: ...Appendix A Table Table Table Table A 2 A 15 A 16 A 17 A 18 CN2 CN4 CN2 CN3 Pin Pin Pin Pin Assignments Assignments Assignments Assignments EPSON ActionLaser 1600 Service Manual A 16 A 16 A 17 A 17 ...

Страница 152: ...igures A 1 and A 2 illustrate the interconnection of the primary components Table A 1 gives the size and a description of each connector Figure A 1 Cable Connections for the Video Controller Section EPSON ActionLaser 1600 Service Manual A 3 ...

Страница 153: ...Appendix A A 4 Figure A 2 Cable Connections for the Engine Section EPSON ActionLaser 1600 Service Manual ...

Страница 154: ...Appendix A Table A 1 Board Connector Summary EPSON ActionLaser 1600 Service Manual A 5 ...

Страница 155: ...Appendix A Video Controller C125 MAIN Board Table A 2 CN3 Pin Assignments A 6 EPSON ActionLaser 1600 Service Manual ...

Страница 156: ...Appendix A Table A 2 CN3 Pin Assignment cont EPSON ActionLaser 1600 Service Manual A 7 ...

Страница 157: ...Appendix A Table A 2 CN3 Pin Assignments cont A 8 EPSON ActionLaser 1600 Service Manual ...

Страница 158: ...Appendix A Table A 3 CN4 Pin Assignments cont Table A 4 CN5 Pin Assignments EPSON ActionLaser 1600 Service Manual A 9 ...

Страница 159: ...Appendix A Table A 4 CN5 Pin Assignments Cont A 10 EPSON ActionLaser 1600 Service Manual ...

Страница 160: ...Appendix A Table A 5 CN6 Pin Assignments Table A 6 CN7 Pin Assignments EPSON ActionLaser 1600 Service Manual A 11 ...

Страница 161: ...Appendix A Table A 6 CN7 Pin Assignments cont Table A 7 CN8 9 Pin Assignments A 12 EPSON ActionLaser 1600 Service Manual ...

Страница 162: ...Appendix A Table A 7 CN8 9 Pin Assignments cont EPSON ActionLaser 1600 Service Manual A 13 ...

Страница 163: ...Appendix A Table A 7 CN8 9 Pin Assignment cont Engine Controller Board PWB A Board Table A 8 CN4 Pin Assignments Table A 9 CN5 Pin Assignments A 14 EPSON ActionLaser 1600 Service Manual ...

Страница 164: ...Appendix A Table A 10 CN6 Pin Assignments Table A 11 CN7 Pin Assignments Table A 12 CN8 Pin Assignments Also CN3 on PWB E Board EPSON ActionLaser 1600 Service Manual A 15 ...

Страница 165: ...ndix A Table A 13 CN9 Pin Assignments Table A 14 CN11 Pin Assignments Power Supply Board PWB E Board Table A 15 CN2 Pin Assignments Table A 16 CN4 Pin Assignments A 16 EPSON ActionLaser 1600 Service Manual ...

Страница 166: ...Appendix A High Voltage Supply Board PWB F Board Table A 17 CN2 Pin Assignments Table A 18 CN3 Pin Assignments EPSON ActionLaser 1600 Service Manual A 1 7 ...

Страница 167: ...Appendix A A 18 EPSON ActionLaser 1600 Service Manual ...

Страница 168: ...Appendix A Circuit Diagrams Figure A 3 C125 MAIN Board Circuit Diagram EPSON ActionLaser 1600 Service Manual A 19 ...

Страница 169: ...Appendix A A 20 EPSON ActionLaser 1600 Service Manual ...

Страница 170: ...Appendix A Figure A 4 LocalTalk I F Board Circuit Diagram EPSON ActionLaser 1600 Service Manual A 21 ...

Страница 171: ......

Страница 172: ......

Страница 173: ......

Страница 174: ...Appendix A Circuit Board Component Layouts Figure A 8 C125 MAIN Board Component Layout F r o n t S i d e EPSON ActionLaser 1600 Service Manual A 25 ...

Страница 175: ...Appendix A Figure A 9 C125 MAIN Board Component Layout Rear Side EPSON ActionLaser 1600 Service Manual A 26 ...

Страница 176: ...Appendix A Exploded Diagrams Figure A 10 Exploded Diagram 1 EPSON ActionLaser 1600 Service Manual A 27 ...

Страница 177: ...Appendix A A 28 Figure A 11 Exploded Diagram 2 EPSON ActionLaser 1600 Service Manual ...

Страница 178: ...Appendix A Figure A 12 Exploded Diagram 3 EPSON ActionLaser 1600 Service Manual A 29 ...

Страница 179: ......

Страница 180: ...Appendix A Figure A 14 Exploded Diagram 5 EPSON ActionLaser 1600 Service Manual A 31 ...

Страница 181: ...Appendix A A 32 Figure A 15 Exploded Diagram 6 EPSON ActionLaser 1600 Service Manual ...

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