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Operating Principles

Rev. A

2-22

2.3.2.5  Printhead Driver Circuit

This printer has 2 separate printhead driver circuits for the black and color printheads. Each circuit has the
common voltage driver circuit attached to the circuit control board, and the nozzle selector circuit attached
to the printhead. The each of the black and color common driver circuits is composed of the hybrid IC
H8D2813E (IC22) and the terminal transistor. The black head nozzle selector circuit is composed of the
128-bit transfer gate array IC IR2C72C, and the color head nozzle selector circuit consists of the 128-bit
transfer gate array IC IR2C72C (for cyan and yellow) and 64-bit transfer gate array IC IR2C73C (for
magenta). Printing data is separated into the common voltage signal and the nozzle selection signal at the
gate array E05B33 (IC6) and is then transferred to the corresponding circuit. Figure 2-20 shows the
printhead driver circuit block diagram.

E05B33 (IC6)

COM

IR2C72C

CN13

LAT

CLK

SI

COM

CN12

LAT

CLK

Magenta

Cyan

Yellow

NCHG

LAT

CLK

S2

IR2C72C

IR2C73C

VHPR

VHV

SCLK,SSTB,SCLR

S3

S1

COM

NCHG
VHV

VHV

Common Driver

Common Driver

C203 MAIN Control Circuit Board

Head Boards

Black Head

BHCLK

BHLAT

BA/BBHDATA

BHNCHG

BCHG,BKC

BND0/1,BMD0/1

SBDATA

CCHG,CKC

CND1/2,CMD1/2

SCDATA

CHCLK

CHLAT

YHDATA

CHDATA

MHDATA

CHNCHG

Figure 2-20. Prinrhead Driver Circuit Block Diagram

Summary of Contents for Stylus COLOR 3000

Page 1: ...EPSON COLOR INK JET PRINTER EPSON Stylus COLOR 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4007664 For other Service and User Manuals go to www ManualDepot com ...

Page 2: ...al 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 registered trademark of SEIKO EPSON CORPORATION General Notice Other product names used herein are for identification purposes only and may be trademarks or regist...

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

Page 4: ...ponents of the printer CHAPTER 2 OPERATING PRINCIPLES Describes the theory of printer operation CHAPTER 3 DISASSEMBLY AND ASSEMBLY Includes a step by step guide for product disassembly and assembly CHAPTER 4 ADJUSTMENT Includes a step by step guide for adjustment CHAPTER 5 TROUBLESHOOTING Provides EPSON approved techniques for troubleshooting CHAPTER 6 MAINTENANCE Describes preventive maintenance ...

Page 5: ......

Page 6: ...vi TABLE OF CONTENTS CHAPTER 1 GENERAL DESCRIPTION CHAPTER 2 OPERATING PRINCIPLES CHAPTER 3 DISASSEMBLY AND ASSEMBLY CHAPTER 4 ADJUSTMENT CHAPTER 5 TROUBLESHOOTING CHAPTER 6 MAINTENANCE APPENDIX ...

Page 7: ...cification 1 15 1 4 Interfaces 1 16 1 4 1 Parallel Interface 1 16 1 4 2 Mac Serial Interface 1 20 1 4 3 Optional Interface 1 21 1 4 4 Prevention Hosts from Data Transfer Time out 1 22 1 4 5 Interface Selection 1 22 1 4 6 Printer language 1 22 1 5 Operation 1 23 1 5 1 Control Panel 1 23 1 5 2 Default Setting 1 26 1 5 2 1 Setting Method 1 26 1 5 2 2 Setting Menu 1 27 1 5 3 Printer Adjustment Mode 1 ...

Page 8: ...accuracy making no skew Push tractor for the office use for pre printed continuous paper High Speed Printing LQ mode 400 cps at 10 cpi Draft mode 800 cps at 10 cpi 2 interfaces built in and 1 optional interface card Mac serial interface up to approximately 900 kbps 1 8 Mbps Bi directional parallel interface IEEE1284 level 1 device Optional Type B interface card High print quality for color graphic...

Page 9: ...omputer to D SUB 25 pin printer C81101 Banner paper holder with cutting guide Banner Paper Kit Ink Cartridges S020118 Black ink cartridge S020122 Yellow ink cartridge S020126 Magenta ink cartridge S020130 Cyan ink cartridge EPSON Special Media S041059 S041025 EPSON 360 dpi ink jet paper A4 S041060 EPSON 360 dpi ink jet paper Letter S041065 S041046 EPSON 360 dpi ink jet paper A3 S041066 S041647 EPS...

Page 10: ...041124 EPSON photo quality glossy paper Letter S041125 EPSON photo quality glossy paper A3 S041123 EPSON photo quality glossy paper A2 S041063 EPSON ink jet transparencies A4 S041064 EPSON ink jet transparencies Letter S041106 EPSON photo quality self adhesive sheet A4 S041103 EPSON 360 dpi ink jet banner paper S041102 EPSON photo quality banner paper S041132 EPSON ink jet canvas S041131 EPSON bac...

Page 11: ...60 dpi X 360 dpi 16 37 inch 5893 20 ips 720 dpi X 720 dpi 16 37 inch 11786 20 ips 1440 dpi X 720 dpi 1 16 37 inch 11786 2 10 ips 1 Printing at 1440 X 720 dpi is available only using driver microweave 2 Can be printed by sending following command sequence 1 Set print speed to 10 ips 2 Print a 180 X 720 raster image 3 Advance the paper using an increment of 31 720 inch 4 Move the print position hori...

Page 12: ... 7 Latin Greek ISO Latin 1T Turkish Bulgaria Bulgaria PC 774 Estonia ISO 8859 2 ISO Latin 2 PC 866 LAT Typeface Bit map LQ font EPSON Roman 10 cpi 12 cpi 15 cpi Proportional EPSON Sans Serif 10 cpi 12 cpi 15 cpi Proportional EPSON Courier 10 cpi 12 cpi 15 cpi EPSON Prestige 10 cpi 12 cpi 15 cpi EPSON Script 10 cpi 12 cpi 15 cpi Scalable font EPSON Roman 10 5 pt 8 pt 32 pt 2 pt increments EPSON San...

Page 13: ... ISO Latin 1 Supported Supported Supported PC 437 Greek PC 852 East Europe PC 853 Turkish PC 855 Cyrillic PC 857 Turkish PC 866 Russian PC 869 Greek MAZOWIA Poland Code MJK CSFR ISO 8859 7 Latin Greek ISO Latin 1T Turkish Bulgaria Bulgaria PC 774 Estonia ISO 8859 2 ISO Latin 2 PC 866 LAT Supported Supported Not Supported 1 3 4 Paper Feeding Paper transport method Friction feed with built in auto s...

Page 14: ...rl harshness or rip 3 When placing paper in ASF be sure not to overload it so that the paper will not dislocate At manual insertion place the paper using the mark on the case for basis and insert it until it meets resistance Transparency Width Length Size A4 210 mm 8 3 297 mm 11 7 Letter 215 9 mm 8 5 279 4 mm 11 0 Paper Thickness 0 075 mm 0 003 to 0 085 mm 0 0033 Note 1 Transparency printing is on...

Page 15: ... 11 mm 0 0043 Paper Weight 52 g m 2 14 lb to 82 g m 2 22 lb Note Make sure that the sheet has no crease curl harshness or rip Labels Continuous Base sheet Width 101 6 mm 4 to 406 4 mm 16 Size Folding length 101 6 mm 4 Label Width 63 5 mm 2 5 Length 23 9 mm 0 94 Paper Thickness 0 02 mm 0 0079 or less including base sheet 0 12 mm 0 0047 or less label only Quality Plain paper Note Label continuous mu...

Page 16: ...12 inch 3 mm 0 12 inch 3 mm 0 12 inch 14 mm 0 54 inch 420 mm 16 5 A3 landscape A2 5 mm 0 20 inch 5 mm 0 2 inch 3 mm 0 12 inch 14 mm 0 54 inch 432 mm 17 02 ANSI B landscape ANSI C 5 mm 0 20 inch 11 mm 0 43 inch 3 mm 0 12 inch 14 mm 0 54 inch PW LM RM TM BM PL Printable Area Figure 1 3 Printable Area for Cut Sheet Table 1 14 Minimum Margins for Different Cut Sheet Sizes ...

Page 17: ...velope Left Margin minimum Right Margin minimum Top Margin minimum Bottom Margin minimum 3 mm 0 12 3 mm 0 12 3 mm 0 12 14 mm 0 55 LM RM TM BM Printable area Figure 1 4 Printable Area for Envelopes Table 1 15 Minimum Margin for Envelope ...

Page 18: ...e than 14 mm 0 55 Printable are 1 Printable area 2 Printable area 2 Printable area 2 Printable area 2 Printable are 1 Printable are 1 Printable are 1 1 When the paper width is more than 406 4 mm 16 this width is more than 38 mm 1 50 13 mm 0 51 1 More than 13 mm 0 51 1 More than More than 12 5 mm 0 49 More than 9 mm 0 35 More than 9 mm 0 35 More than 3 mm 0 12 More than 9 mm 0 35 More than 9 mm 0 3...

Page 19: ...The adjust lever must be set to the proper position according to the paper type to avoid ink smudging caused by ink s contact with paper Paper Type Lever Position Platen Gap Adjustment Value Cut sheet Transparency Continuous paper Far side 0 0 mm Envelopes Index card Near side 1 0 7 mm Table 1 16 Adjust Lever Position PG Adjust Lever Printer Cover Figure 1 6 Adjust Lever Settings ...

Page 20: ...er keeping it for more than 3 hours at room temperature Color ink cartridge Color Ink Cartridge Type Exclusive ink cartridge Color Magenta Cyan Yellow Print capacity 2100 pages A4 at 360 dpi 5 duty each color Ink life 2 years from indicated production date Storage Temperature At storage 20 C to 40 C 4 to 104 F 1 At packing storage 30 C to 40 C 22 to 104 F 1 At transit Packed 30 C to 60 C 22 to 104...

Page 21: ... 60 5 Hz Rated current 0 4 A maximum Power consumption Approximately 21 W ISO IEC 10561 Letter pattern Energy Star program compliant Insulation resistance 10 M ohms min Between AC line and chassis DC 500 V Dielectric strength AC 1 500 Vrms For 1 minute Between AC line and chassis 1 3 11 Environmental Conditions Temperature Operating 1 10 C to 35 C Non operating 2 20 C to 60 C 1 month at 40 C 104 F...

Page 22: ...version Safety standards EN 60950 VDE NEMKO EMI EN 55022 CISPR Pub 22 class B AS NZS 3548 class B 1 3 14 CE Marking 220 240 V version Low Voltage Directive 73 23 EEC EN60950 EMC Directive 89 336 EEC EN55022 class B EN61000 3 2 EN61000 3 3 EN50082 1 IEC801 2 IEC801 3 IEC801 4 1 3 15 Acoustic Noise Noise level Approximately 45 dB A According to ISO 7779 1 3 16 Physical Specification Weight 22 5 Kg D...

Page 23: ...s as follows 2 0 V or less when the printer is powered off 3 0 V or more when the printer is powered on The receiver provides an impedance equivalent to 7 5 K ohms to ground The BUSY signal is set HIGH before setting either ERROR LOW or PE HIGH and held HIGH until all these signals return to an inactive state The BUSY signal is HIGH in the following cases During data entry When the input data buff...

Page 24: ...rise and fall time of every output signal tt in shows the rise and fall time of every input signal Typical time of tack is shown in Table 1 21 Parallel I F transfer rate Typical time of tuck Fast 1us Normal 3us DATA n DATA BUSY 0 5 us min 0 min 0 min 5 us type 0 min DATA n 1 STORBE ACKNLG 0 5 us min 0 5 us min Figure 1 8 Data Transmission Timing Table 1 20 Data Transmission Timing Table 1 21 Typic...

Page 25: ...er is not ready to accept data 12 PE 28 O When this signal is at a HIGH level the paper empty status is detected 13 SLCT 28 O Always at a HIGH level when the printer is powered on 14 AFXT 30 I Not used 31 INIT 30 I The falling edge of a negative pulse or a LOW signal on this line causes the printer to initialize Minimum 50 us pulse is necessary 32 ERROR 29 O When the printer detects an error this ...

Page 26: ...it 2 or 6 in reverse channel 13 Xflag Data bit 1 5 28 O X flag signal Data bit 1 or 5 in reverse channel 14 HostBusy 30 I Busy signal from the host computer 31 INIT 30 I Not used 32 Data Avail Data bits 0 4 29 O Data available signal Data bit 0 or 4 in reverse channel 36 1284 Active 30 I 1284 active signal 18 Logic H O Pulled up to 5V via 3 9 K ohm resistor 35 5V O Pulled up to 5V via 3 3 K ohm re...

Page 27: ... System Peripheral 8 cable Pin No Signal Name I O Function Description 1 SCLK O Synchronous clock 2 CTS I Clear to send 3 TxD O Transmit data 4 S G I Signal Ground 5 RxD I Receive data 6 TxD O Balanced Transmit 7 DTR O Data terminal ready 8 RxD I Balanced Receive State Buffer space X ON X OFF DTR Busy Less than 1024 bytes Send X OFF code Off Ready More than 2048 bytes Send X ON code On Table 1 24 ...

Page 28: ...ntity type EPSONLQ2 When XL24E is selected Main type MTP48p PW161cl10cpi PRG W0xxxx rev AP800ma SPD0fast Product name Stylus COLOR 3000 Emulation type PRPXL24 00 Entity type EPSONPRPXL24 Option command No command name Reply A Reply B 00h No Operation Accept None 01h Start Hard Ware Reset Accept Excute OK 02h Start Soft Ware Reset Reject 03h Send Main System Type Accept 04h Send Name Data Reject 05...

Page 29: ...f interfaces Parallel Serial and optional Type B Each interface can be selected manually or automatically Both modes are selected thorough the default setting mode Manual selection The interface selected through the default setting mode always prints out data from the host Automatic selection Automatic interface selection is enabled in default setting mode In automatic interface selection mode the...

Page 30: ...ns 1 lock type pushbutton and 13 LED printer indicators for easy operation of the various printer functions Refer to Figure 1 10 Operate Paper Out Pause 5 Sec Reset LF FF Load Eject Micro Adjust Ink Out Yellow Magenta Cyan Black Cleaning Media Type Plain Paper 360 dpi Ink Jet Printer Photo Quality Ink Jet Paper Photo Quality Glossy Film Ink Jet Transparencies Other Media Selection Off 3 Sec Cleani...

Page 31: ...ing addresses of EEPROM Tear off adjustment When Micro adjust is executed for the tear off position the adjusted tear off position is memorized in the EEPROM Panel Functions with Power On Button Function Comment Pause Enters the printer adjustment mode Refer to Section 1 5 3 LF FF Enters LQ self test print mode Refer to Section 1 5 5 Load Eject Enters draft self test print mode Refer to Section 1 ...

Page 32: ...No magenta ink cartridge or ink out Blinks Ink low Ink Out Cyan Red On No cyan ink cartridge or ink out Blinks Ink low Ink Out Black Red On No black ink cartridge or ink out Blinks Ink low Media Type Green On Plain paper is selected Media Type Green On 360 dpi Ink Jet Printer is selected Media Type Green On Photo Quality Ink jet Paper is selected Media Type Green On Photo Quality Glossy Film is se...

Page 33: ...he printer is turned off The latest values set before power off are stored in the EEPROM NO YES NO Start YES Turn the printer off to save the new settings into the EEPROM 1 Move through the languages listed by pressing the Micro Adjust button 2 Set the language by pressing the Pause button Press the Media Type button while turning on the printer The printer prints how to select the language for Us...

Page 34: ... 861 BRASCII Abicomp Roman 8 ISO Latin 1 PC 437 Greek PC 853 PC 855 PC 852 PC 857 PC 866 PC 869 MOZOAWIA Code MJK ISO 8559 7 ISO Latin 1T Bulgaria PC 774 Estonia ISO 8859 2 PC 866 LAT International character set for Italic table Italic USA Italic France Italic Germany Italic U K Italic Denmark Italic Sweden Italic Italy Italic Spain 1 Auto line feed On Off Network I F mode This mode is for network...

Page 35: ... D Uni D Printing direction is controlled by driver with Windows Mac environment When the banner mode is selected by default setting or remote command the function is as described in Table 1 34 Function Trigger Banner mode Off manual insertion operation Banner mode On Command FF 1 Case that page length is set by ESC C Eject 2 Case that page length is not set by ESC C Advances to the top margin of ...

Page 36: ...nter Adjustment Patterns Adjust the patterns NO YES NO Start YES Turn the printer off once to save the new settings into the EEPROM More adjustment Press the Pause button to set the selected pattern number 1 Move through the languages listed by pressing the Micro Adjust button 2 Select the language by pressing the Pause button The printer prints the instruction sheet on how to adjust the printer P...

Page 37: ...de to check several printer functions Trigger LQ mode Pressing LF FF button while turning on the printer Draft mode Pressing Load Eject button while turning on the printer Items checked Function of the control circuit board Function of the printer mechanism Print quality 1 5 6 Hexadecimal Dump Function Pressing the LF FF and Load Eject buttons while turning on the printer activates the hexadecimal...

Page 38: ...ence Blinks No color ink cartridge or ink out Corresponding color goes on Ink Low color Corresponding color blinks No black ink cartridge or ink out On Ink Low black Blinks Lever error Blinks Fatal error Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Maintenance request Blinks Blinks Blinks On On On On Blinks Panel reset function On for 1 second only Reset EEPROM and Timer IC On for 1 sec...

Page 39: ...sists of the following 16 bit CPU IC5 clock wave 19 66Mhz Gate arrays B05B33 IC6 B05B45 IC16 PROM IC13 CG ROM IC11 DRAM IC12 SRAMs IC14 IC28 RESET ICs IC3 IC9 EEPROM IC1 Motor driver ICs IC17 IC18 for the pump motor and PF motor Motor driver ICs IC19 IC20 for CR motor Head common driver hybrid ICs IC22 IC23 Pump Motor Driver PF Motor Driver CR Motor Driver E05B45 GA E05B33 GA Color Head Common Dri...

Page 40: ... and 13 printer LED indicators 1 6 4 Printer Mechanism Unit M 4J60 The printer mechanism unit for this printer is composed of the CR motor PF motor pump motor paper feeding mechanism and ink system mechanism 1 6 5 Housing The housing for this printer consists of the upper housing lower housing printer cover ink cartridge cover rear sheet guide tractor unit knob adjust lever and release lever Fuse ...

Page 41: ... 2 2 4 3 Manual Feed Mechanism 2 7 2 2 5 Platen Gap PG Adjust Mechanism 2 8 2 2 6 Ink System 2 9 2 2 6 1 Pump Mechanism 2 10 2 2 7 Capping Mechanism 2 11 2 2 7 1 Wiping CR Lock Mechanism 2 12 2 3 Electrical Circuit Operation Principles 2 13 2 3 1 C172 PSB PSE Electrical Circuit Board 2 13 2 3 2 C203 MAIN Control Board 2 15 2 3 2 1 Reset Circuits 2 17 2 3 2 2 Sensor Circuits 2 17 2 3 2 3 CR Motor D...

Page 42: ... is shown in Figure 2 1 The printer mechanism has 3 motors motor PF Paper Feed motor and pump motor Torque from the motor moves the in the column direction PF motor sends torque to load feed and eject paper The pump motor drives the pump mechanism The release lever switches torque from the PF motor side to the tractor side to feed continuous paper Release Lever Disengage Mechanism PF Motor CR Moto...

Page 43: ...nthead Structure The printhead for this printer has the black and color printheads The structures of the printheads are basically the same except for the nozzle configuration The black printhead used for the black ink only is composed of 128 nozzles 32 nozzles for each of 4 rows while the color printhead composed of 3 printheads for Magenta Cyan and Yellow has 64 nozzles 32 nozzles for each of 2 r...

Page 44: ...surface and increases viscosity in the nozzles and it causes printing malfunction Therefore the ink is periodically absorbed and wasted into the waste ink drain pads by the pump mechanism Ink viscosity varies depending on the temperatures around the printhead Since the change in the ink viscosity leads to decline in print quality the thermistor is attached to the color printhead to keep the drive ...

Page 45: ...ctively Item Description Motor type 4 phases 200 pole Hybrid type stepping motor Drive voltage 42 VDC 5 The voltage applied to the driver Coil resistance 5 Ω 7 at 25 C per 1 phase Excitation mode Bipolar drive 2 2 phase 1 2 phase 1 2 2 1 2 phase 4 1 2 phase Constant current drive Drive frequency 480 to 9600 Hz Minimum step 0 202 mm 2 2 phase drive 0 106 mm 1 2 phase drive 0 053 mm 1 2 phase drive ...

Page 46: ... mechanism via the transmission gear The tractor drive gear train is set at the left end of the PF roller Table 2 3 and Table 2 4 shows the specification for the PF motor and PF motor drive terms respectively Figure 2 5 illustrates the paper feed mechanism Item Description Motor type 4 phases 96 pole Hybrid type stepping motor Drive voltage 42 VDC 5 The voltage applied to the driver Coil resistanc...

Page 47: ...s on the right and left ends They push down the paper support to make the paper surface come in contact with the rollers The one way clutch rotates the roller in the specified direction to load paper Once the paper is loaded the torque from the planetary gear is disengaged and the paper is then transported by the paper feed mechanism One way Clutch ASF Transmission Gear PF Drive Roller Front PE Se...

Page 48: ...sion to the ASF mechanism is cut off as a result 2 2 4 3 Manual Feed Mechanism The printer loads cut sheet and roll paper in the rear paper slot When the rear sensor detects the paper the unit leaves the ASF paper feed position Therefore the paper is manually loaded even if paper is set in ASF This mode allows use of types of paper that differs from the one set in ASF Tractor Disengage Gear Releas...

Page 49: ...hich joins to the lever Since the joint for the parallelism adjust bushing and guide shaft has an eccentricity toward the guide shaft the guide shaft moves from or toward the platen as the lever moves With this movement the platen gap also changes from wide to narrow or vice versa Paper Type Adjust lever Position PG Adjustment Value Cut Sheet Sheet Label Continuous paper Rear 0 Envelope Card Index...

Page 50: ...tridge Pump mechanism Capping mechanism Waste ink drain pads Wiping mechanism Figure 2 9 shows the block chart of the ink system flowchart Ink Cartridges Cleaner Head for Black and Color Inks Clutch Unit Combination Gear Gear Pump Unit Pump 1 Pump 2 Air Valves Waste Ink Drain Pads Pump Motor CR Unit Figure 2 9 Ink System Mechanism ...

Page 51: ...ult the ink is vacuumed and drained into the waste ink drain pads by the pressure produced through the operation 1 The direction in which the paper is fed 2 The direction in which the paper is fed back Item Description Motor type 4 phases 48 pole PM type stepping motor Drive voltage 42 VDC 5 The voltage applied to the driver Coil resistance 7 7 Ω 10 at 25 C per phase Connection Bipolar Excitation ...

Page 52: ... air in the cap is release To resume printing the moves right from the home position to strike the right frame with the cap holder so that the air valve opens This operation brings the negative pressure in the cap back to normal and the goes back to the home position Since the power switch of this printer uses the secondary power on circuit the printer power stays on to allow the printer to comple...

Page 53: ...mplete the pump motor rotates forward to move back the head cleaner Only one cleaner head is used for the both black and color printheads The head cleaner also functions as the lock mechanism When the printer power is off it keeps the unit from shifting left to the printing side The switch lever locks the at the right end by joining with the disengagement mechanism With this mechanism the unit rem...

Page 54: ...tage is first input to the filter circuit for higher harmonics absorption and is converted into voltage thorough the rectifier and smoothing circuits The voltage is then input to the switching circuit These operations are followed by the transformer which generates and stabilizes 42 in the secondary side The produced 42 is then converted into the stable 5 by the regulator IC The on the board monit...

Page 55: ...and photocoupler PC1 42 VDC line constant voltage control circuit Voltage at the 42 VDC line is monitored by the Zener diodes ZD51 ZD81 ZD86 This circuit feeds back the output voltage level status through photocoupler PC1 to the primary switching circuit to control the on off time of the switching FET to constant output voltage level 42 VDC line overcurrent protection circuit The output current is...

Page 56: ...s the sensors IC6 Controls the parallel I F Controls the serial I F Controls Type I F Controls the motor Controls the pump motor Controls black and color printheads DRAM IC12 Manages buffers work area in the SRAM IC14 IC28 Manages input buffer C G ROM IC11 Manages C G Character Generator P ROM IC13 Manages printer control program Optional ROM IC7 IC10 For optional fonts and not attached as a stand...

Page 57: ...rol Panel CR Motor Control Head Temperature Lithium Battery From IC6 Black Color Printhead Common Driver Circuit Nozzle Selection Signal PF Motor Driver Circuit UDN2917EB IC17 Carriage CR Motor Driver Circuit A3953 IC19 IC20 CR Motor PF Motor Nozzle Selection IC Black Printhead 128 Nozzles Color Printhead 64 Nozzles for each color Nozzle Selection IC SRAM 256K IC14 Optional ROM IC7 IC10 P ROM 8M I...

Page 58: ...ith paper detected and is without any paper detected REL Output from the release sensor Release sensor is built into the rear part of the left frame in the printer mechanism It determines whether the release lever is set to the cut sheet side friction mode or to the continuous paper side tractor mode The signal REL is when the lever is set to the friction mode and is when the lever is set to the t...

Page 59: ...the ASF PW sensor and ASF PL sensor the CR PW sensor is not activated Note CR PW sensor See Page 2 19 Detecting Range Paper Width mm D Length between right and left edge guides 1 98 108 6 123 4 141 9 2 146 7 151 9 161 6 187 8 3 196 6 232 1 4 231 8 260 6 5 276 283 6 293 6 300 6 7 325 4 332 6 8 349 6 367 6 9 416 6 423 1 10 429 1 441 ASF_PL Output from the PL Paper Length sensor Paper length is deter...

Page 60: ...nes whether the release lever is set to friction feed side or tractor side The signal is on the tractor side and is on the friction feed side CR_PW Output from the CR PW Paper Width sensor The sensor attached to the left side of the unit uses a photo interrupt system While the makes 1 return in the paper width seek mode sensor reads the voltage level of the output signal at each motor phase change...

Page 61: ... for each micro step of the motor The minimum micro step 0 013 mm step is enabled by 4 phase motor with 4W1 2 phase driven The gate array E05B45 IC16 sends phase data PHASEA B ENAN ENBN directly to the CR motor driver ICs A3953 IC19 and IC20 to control the excitation mode and rotational direction and amount of the motor While the CR is in the home position or the printer is in the ink cartridge re...

Page 62: ...data signal PFA0 1 and PPFB1 0 and voltage reference data PFV to the driver IC UDN2917EB IC17 The driver IC then controls the phase current based on the voltage reference data This sequence enables the micro step with a minimum of 1 720 inch at 2 2 phase B A E05B33 IC6 UDN2917EB IC17 PF Motor PFA0 PFA1 PFB0 PFB1 PFAPH PFBPH PF A PF_A PF B PF_B A B I10 I11 I20 I21 PH1 PH2 PFV FREF1 2 Figure 2 19 PF...

Page 63: ...ts of the 128 bit transfer gate array IC IR2C72C for cyan and yellow and 64 bit transfer gate array IC IR2C73C for magenta Printing data is separated into the common voltage signal and the nozzle selection signal at the gate array E05B33 IC6 and is then transferred to the corresponding circuit Figure 2 20 shows the printhead driver circuit block diagram E05B33 IC6 COM IR2C72C CN13 LAT CLK SI COM C...

Page 64: ...he clock signal by the latch signal BHLAT However the pulse number and the selected nozzle number have no relevance Common driver circuit The common voltage and the rank value are established to correspond to each of the black printhead characteristics This value is stored in advance in the EEPROM when the printer power is off At power on the value is stored in the RAM The gate array E05B33 IC6 re...

Page 65: ...h signal CHLAT to determine the nozzle to use However the pulse number and the selected nozzle number have no relevance Common driver circuit The common voltage and the rank value are established to correspond to each of the color printhead characteristics This value is stored in advance in the when the printer power is off At power on the value is stored in the RAM The gate array E05B33 IC6 refer...

Page 66: ...80 dpi 360 dpi 720 X 360 dpi 720 dpi 1440X720 dpi Black printing for the raster data 0 1 2 3 1 dot printing Normal dot 4 0 1 2 3 1 dot printing Normal dot 1 dot printing OHP sheet 2 dot printing Normal dot Glossy film 1 dot printing Normal dot 1 dot printing Plain paper 2 dot printing Normal dot 2 dot printing Normal dot 1 dot printing Normal dot Color printing for the raster data 0 1 2 3 1 dot pr...

Page 67: ...is operation Ink Cartridge Replacement Performed through the control panel operation when the ink cartridge needs replacing It determines whether the ink cartridge is installed or not and performs a cleaning sequence if necessary Cleaning Performed to solve decline in print quality caused by the abnormal nozzle status such as nozzle clogging and inaccurate ink ejection Print Start Performs the cle...

Page 68: ...er needs to reinstall the ink cartridge which has been removed before transporting the printer some distance to avoid ink leakage The procedure for the initial ink charge for this occasion is as follows 1 Turn the printer on and remove the ink cartridges 2 Turn the printer off and the printer starts ejecting ink from the printheads and tubes to the waste ink drain pads 3 After transportation insta...

Page 69: ...sm Disassembly 3 17 3 2 11 1 CR Motor Removal 3 17 3 2 11 2 Pump Motor Assembly Removal 3 18 3 2 11 3 PF Motor Assembly Removal 3 19 3 2 11 4 Front Rear PE Sensor Removal 3 20 3 2 11 5 Release Sensor Removal 3 21 3 2 11 6 Paper Eject Frame Unit Removal 3 22 3 2 11 7 Pump Unit Removal 3 23 3 2 11 8 Edge Guide Unit Removal 3 24 3 2 11 9 PQ Paper Quantity Sensor Board Assembly Removal 3 26 3 2 11 10 ...

Page 70: ...ite polarity do not come in contact with each other Do not heat the battery or put it near fire Do not solder on any part of the battery Doing so may result in leakage of electrolyte from the battery burning or explosion Do not charge the battery An explosive may be generated inside the battery and cause burning or explosion Do not dismantle the battery The gas inside the battery may hurt your thr...

Page 71: ... EPSON B741000100 Paper quantity detective adjusting tool EPSON 103679400 Paper width detective position tool A4 In EPSON 103679500 Paper width detective position tool A4 Out EPSON 103679600 Paper width detective position tool B4 In EPSON 103679900 Paper width detective position tool B4 Out EPSON 103680000 Paper width detective position tool Letter In EPSON 103680100 Paper width detective position...

Page 72: ...moval PSB PSE Board Removal PL Sensor Removal Waste Ink Drain Pad Removal Printer Mechanism Disassembly CR Unit Removal LD Roller Shaft Removal PF Roller Shaft Removal Rear Paper Guide Removal Middle Frame Assembly Removal Ink Cartridge Holder Removal Ink End Sensor Removal Cartridge Sensor Removal Edge Guide Unit Removal Paper Quantity Sensor Removal Release Sensor Removal Front Rear PE Sensor Re...

Page 73: ... tractor unit 3 Open the ink cartridge cover and release the hooks fixing the panel unit to the upper housing by inserting the tweezers into the cutouts in the illustrated part of the panel unit Then disconnect the connector cable for the panel unit from the panel unit and remove the panel unit Tractor Unit Hook in the Tractor Unit Tweezers Rear Front Figure 3 2 Tractor Unit Removal Panel Unit Upp...

Page 74: ...ng the upper housing to the lower housing Then remove the upper housing by pulling it forward WORK POINT When replacing the upper housing or printer cover be sure to remove the label such as CAUTION and put it to the same position on the replaced part Knob Tweezers CBP Screws 3X12 Tractor Unit Sheet Guide CBS Screw 3X6 Panel Unit Upper Housing CBP Screw 3x12 Gap Adjust Lever Lower Housing Hook Hoo...

Page 75: ...3 6 3 2 2 ROM Replacement 1 Remove 2 screws securing the ROM cover to the bottom of the lower housing and remove the ROM cover 2 Remove the ROM Be sure to disconnect the power cable from the AC socket before replacing the ROM CAUTION ...

Page 76: ... disassembly and assembly 3 Remove the damper cover 4 Inset tweezers into the small cutout inside the CR unit to push the notch Then remove the CR PW sensor cover covering the black and color cables by pulling it up 5 Remove the CR PW sensor board assembly from the black head cable CBP Screws 3x8 Plain Washer 3X0 5X7 Damper Cover CR PW Sensor Connector Cable for the Black Head CR Unit CR PW Sensor...

Page 77: ... the damper assembly Be careful handling the damper assembly so that the ink doesn t leak Make sure that you connect each color tube to the corresponding color ink cartridge 7 Remove the black and color head cables 8 Remove 2 compression springs from the printhead units 9 Remove 2 head fixing screws and plain washers then remove the printheads by pulling them forward WORK POINT When removing the b...

Page 78: ...bly for Black Ink Damper Assemblies for Color Inks Black Printhead Head Fixing Screw Plain Washer 6 3X0 2X8 3 CR PW Sensor Board Assembly Black Printhead Cable Color Printdead Cable Compression Spring 9 9 Color Printhead Plain Washer 6 3X0 2X8 3 CR Unit Tube Clamp Figure 3 6 Black Color Head Removal ...

Page 79: ... 1 2 Disconnect the connector cable for the HP sensor from the sensor connector 3 Using tweezers release the hook securing the HP sensor to the HP sensor holder and remove the HP sensor HP Sensor Holder HP Sensor Connector Cable Tweezers HP Sensor HP Sensor Holder HP Sensor Figure 3 7 HP Sensor Removal ...

Page 80: ...riate connection may result in malfunction of the PSE PSB board or the main control board WORK POINT Be sure to lubricate the top surface of the paper eject frame in an ASP printer mechanism unit since the frame along which the CR unit slides is not lubricated After installing the printer mechanism unit to the lower housing be sure to insert the waste ink draining tubes linking to the pump unit in...

Page 81: ...or the main board assembly from the CN1 and CN2 respectively 5 Remove 4 screws CBS 3X6 securing the PSB PSE board assembly to the lower housing then remove the PSB PSE board WARNING After disconnecting the power cable from the AC socket never disconnect the cable from the CN1 for about 5 minutes since the capacitor on the C172 PSB PSE board is still discharging electricity CBS Screws 3X6 Upper Shi...

Page 82: ...S 3X6 securing the upper connector cover to the lower housing at the back then remove the upper connector cover 9 Remove 10 screws 8 CBS screws 3x6 and 2 CP screws 3X6 securing the main board assembly to the lower housing 10 Remove the earth spring B 11 Remove Type B interface board guide from the main board assembly 12 Remove the main board assembly The connectors for the motor CN20 22 and 23 and...

Page 83: ...pe B I F CBS Screws 3X8 Main Board Assembly ASF PW Sensor Connector Cable ASF PL Sensor Connector Cable CN8 CN15 CN11 CN17 CP Screws 3X6 Lower Housing Upper Connector Cover CBS Screw 3X8 CBS Screws 3X8 CBS Screw 3X8 CBS Screw 3X8 CBS Screws 3X8 Figure 3 10 C203 MAIN board Removal ...

Page 84: ... the default setting mode Refer to Chapter 1 Section 1 5 2 1 1 Perform EEPROM reset See Section 1 5 1 in Chapter 1 2 Remove upper housing See section 3 2 1 3 Remove the printer mechanism unit See Section 3 2 6 4 Remove the main waste ink drain pads See Section 3 2 9 WORK POINT Current value for the protect counter A is shown along with the ROM version number on the test print sheet 1st line on the...

Page 85: ...onnect the connector cable for the PL sensor from the CN11 on the main board assembly 4 Using tweezers release 3 hooks securing the PL sensors to the lower housing WORK POINT Make sure you connect each connector cable to the appropriate connector paying attention to the cable length which locates the proper connector Connector Switches Lower Housing Figure 3 12 PL Sensor Removal ...

Page 86: ...rclockwise in the order shown by the steps 1 to 3 in Figure 3 13 Then remove the CR motor by pulling it toward the bottom edge of the base frame assembly CAUTION CR motor fan and CR motor assembly are 2 separate parts Therefore be sure to mount the CR motor fan with specified adhesive when replacing the CR motor Make sure that you leave some portion of 0 to 2 mm on the end of the CR motor shaft as...

Page 87: ...ve the connector cable for the pump motor assembly securing the pump motor to the printer mechanism unit from the clump 3 Remove 2 screws CBS 3x6 securing the pump motor assembly to the sub frame assembly Then remove the pump motor assembly CBS Screws 3X6 Pump Motor Assembly Sub Frame Assembly Figure 3 15 Pump Motor Assembly Removal ...

Page 88: ...tached to the printer mechanism unit 3 Remove 2 screws CBS 3x6 securing the PF motor assembly to the left frame unit Then remove the PF motor assembly WORK POINT The PF motor pinion gear is made precise and easy to rust Therefore be careful not to touch it with your bare hands or bump it against other objects CBS Screws 3x6 PF Motor Assembly Left Frame Unit Figure 3 16 PR Motor Assembly Removal ...

Page 89: ...ront and rear PE sensors to the rear paper guide assembly at the bottom of the printer mechanism unit Then remove the sensors 3 Disconnect the sensor connector cables from the sensor connectors Rear Paper Guide Assembly Connector Cable for the Rear PE Sensor Rear PE Sensor Hooks Front PE Sensor Connector Cable for the Front PE Sensor Figure 3 17 Front Rear PE Sensor Removal ...

Page 90: ...1 Remove the printer mechanism unit See Section 3 2 6 2 Using tweezers release 1 hook securing the release sensor to the left frame unit Then remove the release sensor Release Sensor Left Frame Unit Hook Release Sensor Connector Cable Figure 3 18 Release Sensor Removal ...

Page 91: ... eject frame unit to the printer mechanism unit 4 Remove the paper eject frame unit from the printer mechanism unit by releasing the joint with the CR unit WORK POINT When removing the paper eject frame unit insert a piece of clean paper or equivalent between the platen surface in the paper eject frame unit and printheads in the CR unit to protect the printheads CBS Screws 3X6 Printer Mechanism Un...

Page 92: ...t WORK POINT When installing the head cleaner to the pump unit face the rubber part of the clear to the pump side as shown in Figure 3 20 When installing the pump unit place the tubes into the cutout first and then insert the sub waste ink pads to set the tubes between them CBS Screws 3X6 Head Cleaner Draining Pipe ASF Transmission Frame Unit Sub Waste Ink Drain Pad CBP Screw 3X8 Right Main Frame ...

Page 93: ...nk cartridge holder to the middle frame so that the flange nut under the cartridge holder will be removed easily in the next step 5 Remove 2 flange nuts M4 securing the edge guide unit to the left frame assembly and middle frame unit Then remove the edge guide unit WORK POINT When installing the edge guide unit to the printer mechanism unit engage the rack on the edge guide unit with the pinion on...

Page 94: ... printer mechanism unit engage the edge guide unit with the main bottom frame as shown in Figure 3 22 Be sure to fix the flange nuts with the specified adhesive See Chapter 6 Bottom Main Frame Edge Guide Unit Spring Front Rear Figure 3 22 Joining the Edge Guide Frame and Bottom Main Frame ...

Page 95: ...lever to the PQ sensor and remove the PQ sensor sub lever 5 Remove 1 pan camera 1B tight screw 2X3 5 securing the PQ sensor to the right edge guide Then remove the PQ sensor board assembly Do not apply too much torque when tightening the screws Otherwise the threads of the tapped holes in the edge guide unit might crush CAUTION PQ Sensor Lever Assembly Right Edge Guide PQ Sensor Board Assembly Ten...

Page 96: ... sensor cover by opening it in 2 steps shown in Figure 3 24 4 Remove the ASF PW sensor WORK POINT After placing the printer mechanism unit back on the lower housing connect the PW sensor connector cable to the PW sensor first Then attach the ASF PW sensor cover When mounting the PW sensor fit the actuator of the PW sensor into the groove on the PW sensor sliding plate ASF PW Sensor Board Assembly ...

Page 97: ...8 and 1 CBS screw 3X6 from cyan ink cartridge holder CAUTION When removing one of the cartridge holders you need to remove all cartridge holders on its right since they are laid on top of the left in the order of yellow magenta cyan and black from left For instance you must remove the black cyan and magenta ink cartridge holders to remove the yellow ink cartridge holder Be careful when tightening ...

Page 98: ...dge Supporting Plate Cartridge Holder Unit CBS Screw 3x6 Ink Tube Unit Coupling Screw M6 Tube Fixing O Ring CBP 3X8 CBP 3X8 CBP 3X8 CBP 3X8 Ink Cartridge Fixing Plate CBS Screw 3x6 Yellow Magenta Cyan Black Figure 3 25 Ink Cartridge Holder Removal ...

Page 99: ...unit See Section 3 2 6 2 Remove the paper eject frame unit See Section 3 2 11 6 3 Remove the pump unit See Section 3 2 11 7 4 Remove the ink cartridge sensor connector cables from the clump on the ink cartridge holder 5 Remove the ink cartridge holder unit See Section 3 2 11 11 6 Remove 2 screws CB 3X10 securing the pin holder to the pin holder assembly and 2 hexagon nuts M3 Then remove the pin ho...

Page 100: ...k and the color cables with the head cable guide to the base frame assembly Then remove the head cable guide and tube mounting plate and remove the ink tubes from the printer mechanism 8 Release the coupling screws connecting the ink tubes to the ink tube unit Then remove the tubes 9 Turn the parallelism adjust bushings joining the CR guide shaft to the right and left frame assemblies and release ...

Page 101: ...r to the cutout on the right frame assembly See Figure 3 27 REQUIRED ADJUSTMENT After reinstalling the CR unit or parallelism adjust bushings perform following adjustment PG adjustment Bi D adjustment Uni D adjustment See Chapter 4 If you replace the printhead along with the CR unit be sure to write new head voltage data to the EEPROM See Chapter 4 WORK POINT When installing the timing belt to the...

Page 102: ... in Figure 3 30 until it fits into the cutout on the left frame unit Then release the joint for the sub tractor cam and left frame unit Release transmission lever A black plastic lever located at the inner side of the left frame 6 Pull out the tractor release shaft along with the tractor sub release cam 7 Remove 5 screws CBS 3X6 securing the base frame assembly to the printer mechanism unit Then r...

Page 103: ...ft end of the LD shaft 13 Release the LD shaft bushing fixing the LD shaft to the left main frame assembly 14 Release the joint for the LD gear on the right end of the LD shaft and ASF transmission gear in the middle frame unit Then shift the LD shaft toward the left frame assembly and remove it WORK POINT Engage the LD gear and the gear 29 in the ASF gear set as shown in Figure 3 32 Don t touch t...

Page 104: ... 35 ASF Transmission Gear Set LD Gear E ring Bushing PF Roller Edge Guide Bushing LD shaft LD Rollers Figure 3 32 LD shaft Removal Gear 29 ASF Transmission Gear Set LD Gear ASF Transmission Ratchet Figure 3 33 ASF Gear Set Engagement ...

Page 105: ... at the right and left ends of the PF roller and release joints with right left frame assemblies and left main frame assembly 8 Remove 1 E ring attached to the left end of the PF roller 9 Shift the PF roller left and release the joints for the PF roller gear 24 and ASF transmission ratchet Then remove the PF roller Do not touch the gears with your bare hands Otherwise they will be damaged and lose...

Page 106: ...6 5 Remove 2 screws CBS 3X6 securing the LD guide frame to the left frame unit and middle frame unit Then remove the LD guide frame 6 Release 1 hook on the rear paper guide securing the rear paper guide to the right end of the bottom frame assembly Then shift the rear paper guide left and remove it Rear Paper Guide Assembly LD Guide Frame Hook CBS Screw 3X6 Middle Frame Unit Bottom Frame Assembly ...

Page 107: ...ction 3 2 11 15 7 Remove the PF roller See Section 3 2 11 16 8 Remove 1 screw CBS 3x6 securing the LD frame guide to the middle frame unit 9 Remove the connector cable for the middle frame from the clump 10 Remove 2 screws CBS M 3X6 securing the middle frame to the bottom frame assembly and 1 screw CBS 3x8 fixing the ink cartridge holder base Then remove the middle frame unit Bottom Main Frame Mid...

Page 108: ...ing out the Head Voltage 4 6 4 1 4 Black Head Angular Adjustment 4 7 4 1 5 Head Vertical Adjustment 4 9 4 1 6 Head GAP Adjustment 4 10 4 1 7 Uni D Adjustment 4 12 4 1 8 Bi D Adjustment 4 14 4 1 9 Sensor Check 4 16 4 1 9 1 PQ Sensor Adjustment 4 17 4 1 9 2 ASF PW Sensor Adjustment 4 18 4 1 9 3 Paper Length Sensor Adjustment 4 19 4 1 9 4 PG Adjustment 4 19 ...

Page 109: ...oltage write operation 2 Black printhead angular adjustment 3 Head vertical adjustment 4 Head gap adjustment Black printhead is removed 1 Black printhead angular adjustment 2 Head vertical adjustment 3 Head gap adjustment Color printhead is replaced 1 Head voltage write operation 2 Color printhead angular adjustment 3 Head vertical adjustment 4 Head gap adjustment Color printhead is removed 1 Colo...

Page 110: ...ust bushing to make the gap as follows Wide enough to insert a 1 24 mm thick gauge Too narrow to insert a 1 28 mm thick gauge Table 4 2 shows the direction for moving the parallelism adjust bushing to make the platen gap from wide to narrow or vice versa Platen gap Left parallelism adjust bushing Right parallelism adjust bushing To narrow Clockwise Counterclockwise To widen Counterclockwise Clockw...

Page 111: ... end Widen the PG Narrow the PG Return to the main flow Is the right PG OK Set the PG lever to Shift the CR unit to the left end Set the PG lever to 0 Is the left PG OK END Set the PG lever to Set the PG lever to 0 Does a 1 24 mm Gauge go through Does a 1 28 mm Gauge PG Adjustment PG Adjustment PG Adjustment PG Adjustment NO YES go through Figure 4 2 Platen Gap Adjustment Flowchart ...

Page 112: ... will cause failure in running the program 4 The Main menu appears on the monitor Perform one of the followings Select 2 Adjustment and Check by moving the cursor using or key Then press Return key to proceed to the Adjustment and Check menu Select E END using or key to exit the program WORK POINT Adjusted values are not stored in the EEPROM until the printer is turned off Therefore make sure you ...

Page 113: ...Adjustment and Check menu RETURN Enter the initial ink charge mode and return to the Adjustment and Check menu ESC Return to the Adjustment Check menu without changing the current values 8 Perform one of the following Select R Return using or key to and press Return key to return to the Main menu Select other adjustments using or key to and press Return key to make the selected adjustment Select R...

Page 114: ...e printer prints an A4 check pattern See the paragraph under 6 TITLE in which the head IDs are printed in 8 digits as shown in the bold letters in the example below See the 2nd line which shows the black head ID BK and the color head ID YMC The 2nd and 3rd digits show the head ID for the normal dot and the 5th digit shows the rank value The last 2 digits show the head ID for the micro dot as shown...

Page 115: ...8 to align the vertical lines continuously by making the gap width less than 1 4 of the line width 7 After making the adjustment press one of the following keys SPACE Retry the operation 0 Enter a cleaning sequence RETURN Quit the operation and return to the Adjustment and Check menu ESC Return to the Adjustment and Check menu without changing the current settings 8 Perform one of the followings S...

Page 116: ... angular OK Move the color head adjust lever right Move the color head adjust lever left The printer prints another head angule adjustment pattern head angle OK Yes Is the color Is the black Start End The direction in which paper is fed Move the black head adjust lever left What does the pattern show What does the pattern show Loosen the black head fixing screw by turning it 1 4 See Figure 3 6 in ...

Page 117: ... keys SPACE Retry the operation 0 Enter a cleaning sequence RETURN Quit the operation and returns to the Adjustment and Check menu ESC Return to the Adjustment and Check menu without changing the current settings 8 Perform one of the followings Select R Return using or key to and press Return key to return to the Main menu Select other adjustment using or key to and press Return key to make the se...

Page 118: ...de Less than 1 4 of the line width 7 After making an adjustment press one of the following keys 0 Correct values if you input wrong values SPACE Print to check the result with proper values RETURN Quit the operation and return to the Adjustment and Check menu ESC Return to the Adjustment and Check menu without changing the current values 8 Perform one of the followings Select R Return using or key...

Page 119: ...value using key Press Space key to print Press 0 key to correct the value The printer prints another adjustment pattern in the LQ and SLQ modes Press Return key Gap Width Change the value using key What does the pattern show Yes No Is the head gap OK Is the head gap OK Yes No Yes Is the value correct End Start No Figure 4 7 Head Gap Adjustment Flowchart ...

Page 120: ...king an adjustment press one of the following keys 0 Correct the input values SPACE Print to check the result with the input values RETURN Quit the operation and return to the Adjustment and Check menu ESC Return to the Adjustment and Check menu without changing the current values 8 Perform one of the followings Select R Return using or key to and press Return key to return to the Main menu Select...

Page 121: ...orrect the value The printer prints another Uni D adjustment pattern in the draft mode Press Return key Yes No Gap Width Change the value using key What does the pattern show Is Uni D OK OK Is the value correct End Start The printer prints the Uni D adjustment pattern in the draft mode Is Uni D Yes Yes No No Figure 4 8 Uni D Adjustment Flowchart ...

Page 122: ...1 2 of the line 7 After making an adjustment press one of the following keys 0 Correct the input values SPACE Print to check the result with the input values RETURN Quit the operation and return to the Adjustment and Check menu ESC Return to the Adjustment and Check menu without changing the current values 8 Perform one of the followings Select R Return using or key to and press Return key to retu...

Page 123: ...key to correct the value The printer prints another Bi D adjustment pattern Press Return key Yes No Gap Width Change the value using key What does the pattern show Is Bi D OK OK Is the value correct End Start The printer prints a Bi D adjustment pattern in the LQ and draft modes Is Bi D No No Yes Yes Figure 4 9 Bi D Adjustment flowchart ...

Page 124: ...e lower housing This must be performed whenever the main control board or the CR unit is replaced Follow the step 1 to 4 to enter the Sensor check menu 1 Connect the printer and the host computer with a parallel interface cable 2 Start the adjustment program in the host computer 3 Input the market code Refer to Section 4 1 2 4 Move the cursor using or key to select 3 Sensor Check from the Main men...

Page 125: ...d press Return key 3 Move the cursor using or key to select 2 ASF Quantity and press Return key 4 Remove paper and press Return key 5 Set a stack of paper or the paper quantity detective adjust tool on the right edge guide in the ASF Then press Return key and the Sensor check menu appears Note Stack of paper With a thickness of 9 mm to 9 1 mm or approximately 100 sheets of 64 g paper 17 lb paper C...

Page 126: ......

Page 127: ......

Page 128: ...ng 5 1 General Description 5 1 5 2 Unit Level Troubleshooting 5 4 5 3 Repair of the C172 PSB PSE Board at Component Level 5 10 5 4 Component Repair of the C203 MAIN Board 5 11 5 5 Repair of the M 4J60 Printer Mechanism 5 14 ...

Page 129: ...and disconnect the harnesses from the MAIN board Meter reading CR motor CN22 Pin 1 and Pin 2 or Pin 3 and Pin 4 Place one lead to the Pin 1 and the other to the Pin 2 then check the coil resistance per phase 5 Ω 7 at 25 per phase Pump Motor CN20 Pin 1 and Pin 2 or Pin 3 and Pin 4 Place one lead to the Pin 1 and the other to the Pin 2 and check the coil resistance per phase 7 7 Ω 10 at 25 C per pha...

Page 130: ... Yellow ink cartridge CN12 HIGH No yellow ink cartridge installed sensor Pin 3 and Pin 4 LOW Yellow ink cartridge installed Black ink end sensor CN14 HIGH Black Ink end Pin 1 and Pin 2 LOW Black Ink remaining Cyan ink end sensor CN13 HIGH Cyan Ink end Pin 1 and Pin 2 LOW Cyan Ink remaining Magenta ink end CN7 HIGH Magenta Ink end sensor Pin 1 and Pin 2 LOW Magenta Ink remaining Yellow ink end sens...

Page 131: ...e Blinks No cartridge or ink end On 1 Replace the ink cartridge Ink low B 1 Have a new cartridge ready Fatal error Blinks Turn off and back on the printer Release lever error Blinks Set the lever back to the previous position and eject the loaded paper Then set the lever to the appropriate position for the selected type of paper Maintenance requested Blinks Blinks Blinks On 2 Blinks Replace the wa...

Page 132: ...lem Symptom Problem Flowchart No The printer does not operate at all No LED indicator lights up The printer mechanism does not operate at all 1 An error is indicated An error is indicated by LED indicators 2 Printing operation is abnormal The printer does not print Abnormal printing occurs Print quality is poor 3 Paper is fed abnormally The printer feeds paper abnormally Paper is jamming The top e...

Page 133: ... PSB PSE board Is the voltage correct Replace the MAIN board Is the problem corrected Replace the PSB PSE board Check the motor and driver circuits Refer to Section 5 5 YES NO Has the fuse F1 on the PSB PSE board blown Does the fuse blow again at power on Replace the fuse and disconnect the connector cable from the CN2 on the PSB PSE board END NO YES YES NO YES NO YES NO Figure 5 2 Flowchart 1 ...

Page 134: ...hey are defective replace them Does the error still occur Reset the release lever and check if any paper is loaded in the printer Replace the ink cartridge with a new one Turn off the printer and move the carriage manually Does it move smoothly Check the CR motor and drivers If they are normal replace the MAIN board Is the problem corrected Proceed to Section 5 5 Repair of the printer mechanism EN...

Page 135: ...problem corrected Proceed to Section 5 5 Repair of the Printer Mechanism Check the motors drivers and printheads If they are normal replace the main control board Is the problem corrected Is the problem corrected Are all connector cablesconnected to Perform adjustments Refer to Chapter 4 Connect them properly YES YES NO NO NO YES YES the main board properly Is the printing result abnormal Figure 5...

Page 136: ...roblem corrected Remove the foreign objects located in the paper path Check the PF motor and driver If they are normal replace the main controlboard Proceed to Section 5 5 Repair of the Printer Mechanism Is paper properly set in the ASF tractor Clean the PF roller and the paper path YES NO YES NO NO NO YES Jam error indicated Is Paper Figure 5 5 Flowchart 5 ...

Page 137: ...RT END END Is the problem corrected NO YES Replace the control panel Connect the control panel properly Is the problem corrected Replace the main control board Replace the control panel YES YES NO NO Is the control panel connector cable properly connected Figure 5 6 Flowchart 5 ...

Page 138: ...se Checkpoint Solution The printer does not 42 VDC is not output Fuse F1 is open Check visually if the fuse is good Replace the fuse F1 operate at all Transformer T1 is open Check the transformer using a multimeter Replace the transformer T1 Q1 is dead Check the waveform at drain Waveform 1 Replace the Q1 Q2 or Q3 is dead Check the waveform at corrector Waveform 2 Replace the Q2 or Q3 PC1 is dead ...

Page 139: ...is defective Check the following signals for the waveforms IC9 IC3 5V R E S E T Waveform 6 Replace the MAIN board or the reset IC CPU doesn t operate The driver mechanism doesn t operate properly at power on off Selection of ROM and sub gate array is improper Check the waveform for one of the following signals output from the CPU IC5 for the change in the signal High and Low CS0 Pin 1 CS1 Pin 2 CS...

Page 140: ...tor coil is as follows 5Ω 7 at 25 C per phase Refer to Table 5 1 Replace the CR motor Symptom The printer feeds paper abnormally PF motor does not operate normally Sub gate array IC6 is defective Check the waveform for one of the following signals output from the IC17 PFA0 1 Pin1 2 PFB0 1 Pin 23 24 Pin 1 on the IC17 Pin 6 on the IC 17 Waveform 10 Replace the MAIN board CPU is defective Replace the...

Page 141: ...ollows 7 7 Ω 10 at 25 C Refer to Table 5 1 Symptom The printer does not perform Self test Sub gate array IC6 is defective Run the Self test and check the waveforms for the signals SBDATA Pin 24 and SCDATA Pin 24 output from the IC22 Pin 24 on the IC22 Pin 18 on the CN21 Waveform 12 Replace the MAIN board CPU is defective Replace the MAIN board Common driver IC 22 and IC23 are defective Check the c...

Page 142: ...nk drain tube is caught in the cleaner lever in the pump unit Check if the tube is properly routed Route the tube properly but it does not solve the dot missing problem The tube is disconnected from the cap Check if the tube is securely connected Connect the tube securely Ink drain tube is bent or damaged Check if the tubes in the pump unit and under the cap are bent or damaged Replace the pump un...

Page 143: ...abnormal printing constantly Ink is not ejected straight or dot is missing due to viscous ink Repeat cleaning sequence and run the Self test Clean the printhead surface The head FFC is disconnected from the printhead or MAIN board Check if the FFC is connected to the printhead and MAIN board Connect the head FFC securely The head FFC is damaged Check if there is continuity using the multimeter Rep...

Page 144: ...y adjustment Refer to Chapter 4 The printhead is defective Replace the printhead Symptom Paper is fed abnormally Paper is not fed Foreign objects are lodged in the edge guide PF roller paper guide unit or paper eject drive unit Turn the knob and check if the paper feed mechanism is normally functioning Remove the foreign objects The PF motor is defective Check if the resistance of the motor coil i...

Page 145: ...Chapter 6 Maintenance 6 1 Cleaning 6 1 6 2 Service Maintenance 6 2 6 2 1 Head Cleaning 6 2 6 2 2 Maintenance Request 6 2 6 3 Lubrication and Adhesive 6 3 ...

Page 146: ...ow the instructions below when handling the lithium battery installed on the C211 MAIN board 1 Keep the battery away from any metal materials 2 Ensure to mount the battery in the right direction Otherwise it may result in explosion 3 Do not heat up or burn the battery Never apply thinner trichloroethilene and toner based solvents Use of a soft and dry cloth is recommended In case stain adheres use...

Page 147: ...ing button The printer goes back to the off line status when the cleaning completes 3 Press Pause to put the printer back to the stand by status Do not perform forcible cleaning unless the printing result is obviously abnormal Excessive cleaning may shorten the cartridge life 6 2 2 Maintenance Request This printer counts the amount of ink absorbed from the ink cartridges to monitor the capacity of...

Page 148: ...on the condition that they are used for this printer Therefore never apply items which are not listed since use of other items may result in short printer life and poor printer performance Type Product name Content Part code Applicability Grease G 26 40 g B702600001 EPSON exclusive product Oil O 8 40 g 1019753 EPSON exclusive product Adhesive NEJI lock B1401B 1000 g B730200200 EPSON exclusive prod...

Page 149: ...e Points 1 Point where the CR motor fan is attached to the CR motor shaft 2 Right and left hexagon nuts in the edge guide unit Do not apply too much lubricant or adhesive to avoid printer malfunction Table 6 3 Adhesive Points CAUTION ...

Page 150: ...EPSON Stylus COLOR 3000 Rev A 6 5 1 1 1 2 3 4 4 4 4 4 4 Figure 6 1 Lubrication Points 1 ...

Page 151: ...Maintenance Rev A 6 6 9 9 9 9 9 9 9 9 6 7 Figure 6 2 Lubrication Points 2 ...

Page 152: ...EPSON Stylus COLOR 3000 Rev A 6 7 CR Motor 1 CR Motor Fan Indent side facing outside 2 2 Figure 6 3 Adhesive Points ...

Page 153: ...Appendix A 1 Connector Summary A 1 A 1 1 Connector Pin Assignment A 2 A 2 Circuit Diagrams A 9 A 3 Component Layout A 16 A 4 Exploded Diagrams A 21 A 5 Dimension and Weight A 25 ...

Page 154: ...nsor PG Sensor ASF Paper Quantity Sensor ASF Paper Length Sensor Ink End Cartridge Sensor Yellow Ink End Cartridge Sensor Cyan Ink End Cartridge Sensor Black PF Motor CR Motor Pump Motor C203 PNL C203 MAIN Black Printhead Color Black CN23 CN20 CN22 CR Unit CN1 CN1 AC Power Input Parallel I F Type B I F Macintosh Serial I F CN2 CN16 CN18 CN21 CN15 CN2 C172PSB PSE CN6 CN4 CN7 CN5 CN3 CN8 CN9 CN10 CN...

Page 155: ...sensor CN5 2 Rear PE sensor CN6 3 HP sensor CN7 4 Ink end Cartridge sensor Magenta CN8 5 ASF PW sensor CN9 2 Platen gap sensor CN10 3 ASF PQ sensor CN11 6 ASF PL sensor CN12 4 Ink end Cartridge sensor Yellow CN13 4 Ink end Cartridge sensor Cyan CN14 4 Ink end Cartridge sensor Black CN15 9 DC input from the C172 PSB PSE board Power off signal CN16 8 Mac Serial I F Refer to Section 1 3 3 CN17 26 C20...

Page 156: ... sensor signal 2 5 5 VDC 3 GND Ground Pin No I O Signal Name Description 1 I IC_M0 Ink cartridge sensor signal 2 GND Ground 3 I IC_M1 Ink end sensor signal 4 GND Ground Pin No I O Signal Name Description 1 NC 2 I ASF_PW ASF PW sensor signal 3 5 5 VDC 4 GND Ground 5 NC Table A 2 Connector Pin Assignment CN3 Table A 3 Connector Pin Assignment CN4 Table A 4 Connector Pin Assignment CN5 Table A 5 Conn...

Page 157: ...iption 1 I IC_Y0 Ink cartridge sensor signal 2 GND Ground 3 I IC_Y1 Ink end sensor signal 4 GND Ground Pin No I O Signal Name Description 1 I IC_C0 Ink cartridge sensor signal 2 GND Ground 3 I IC_C1 Ink end sensor signal 4 GND Ground Pin No I O Signal Name Description 1 I IC_B0 Ink cartridge sensor signal 2 GND Ground 3 I IC_B1 Ink end sensor signal 4 GND Ground Table A 8 Connector Pin Assignment ...

Page 158: ...SW 1 SW 1 signal 7 I SW 2 SW 2 signal 8 O LED 4 LED 4 signal 9 O LED 5 LED 5 signal 10 O LED 6 LED 6 signal 11 O LED 7 LED 7 signal 12 O LED 8 LED 8 signal 13 O LED 9 LED 9 signal 14 I SW 3 SW 3 signal 15 I SW 4 SW 4 signal 16 GND Ground 17 I SW 5 SW 5 signal 18 I SW 6 SW 6 signal 19 I SW 7 SW 7 signal 20 5 5 VDC 21 I PWS PWS signal 22 I PSC Power scan signal 23 O LED 10 LED 10 signal 24 O LED 11 ...

Page 159: ...round 12 O CHCLK Clock signal 13 GND Ground 14 O CHNCHG NCHG signal 15 GND Ground 16 5 Power source 17 GND Ground 18 GND Ground 19 GND Ground 20 O COM Common output 21 O COM Common output 22 O COM Common output 23 VHPR Drive voltage 24 VHPR Drive voltage Pin No I O Signal Name Description 1 O A Phase A output 2 O A Phase A output 3 O B Phase B output 4 O B Phase B output Table A 16 Connector Pin A...

Page 160: ...M Common output 19 O COM Common output 20 O COM Common output 21 VHPR Drive voltage 22 VHPR Drive voltage 23 NC 24 I CR_PW CR PW sensor signal 25 GND Ground 26 5 Power source Pin No I O Signal Name Description 1 O A Phase A output 2 O A Phase A output 3 O B Phase B output 4 O B Phase B output Pin No I O Signal Name Description 1 O A Phase A output 2 O B Phase B output 3 O A Phase A output 4 O B Ph...

Page 161: ...EPSON Stylus COLOR 3000 Rev A A 8 ...

Page 162: ...Appendix Rev A A 9 A 2 Circuit Diagrams Figure A 2 C203 MAIN B Board Circuit Diagram 1 2 ...

Page 163: ...EPSON Stylus COLOR 3000 Rev A A 10 ...

Page 164: ...Appendix Rev A A 11 Figure A 3 C203 MAIN B Board Circuit Diagram 2 2 ...

Page 165: ...EPSON Stylus COLOR 3000 Rev A A 12 ...

Page 166: ... LED2 LED3 LED3 LED4 LED4 LED5 LED5 LED6 LED6 LED7 LED7 LED8 LED8 LED9 LED9 LED10 LED10 LED11 LED11 LED12 LED12 SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7 PSW PSC GND 6 24 23 25 SW0 SW1 SW2 SW3 SW4 SW5 SW7 SW6 SW8 22 18 17 16 15 14 13 3 2 1 21 20 19 12 11 9 8 7 5 4 10 Figure A 4 C203 PNL Board Circuit Diagram ...

Page 167: ...4 C3 2200P C4 2200P C8 1000P FG FG C2 0 1u Q31 K1725 R32 39K R13 4 7K Q3 2PA1015Y Q2 C4408 R16 270 R15 510 10 9 C12 100U D1 11EQS06 R56 150 50V C83 22U R55 39K R83 1K C56 10U 50V D83 1SS120 CY51 DRA03TC ZD88 HZS5ALL R82 100 ZD87 HZS24 1L ZD52 HZS24 1L Q84 K1398 C84 330U 6 3V R86 100 R81 2K 0 5W R84 39K R85 470K D86 11EQS06 Q83 DTA115ES D85 1SS120 ZD89 HZS6A1L Q82 DTC114YS D82 1SS120 D84 1SS120 C55...

Page 168: ...C3 2200P C4 2200P C8 1000P FG FG C2 0 1u Q31 K1725 R32 39K R13 4 7K Q3 2PA1015Y Q2 C4408 R16 270 R15 510 10 9 C12 100U D1 11EQS06 R56 150 50V C83 22U R55 39K R83 1K C56 10U 50V D83 1SS120 CY51 DRA03TC ZD88 HZS5ALL R82 100 ZD87 HZS24 1L ZD52 HZS24 1L Q84 K1398 C84 330U 6 3V R86 100 R81 2K 0 5W R84 39K R85 470K D86 11EQS06 Q83 DTA115ES D85 1SS120 ZD89 HZS6A1L Q82 DTC114YS D82 1SS120 D84 1SS120 C55 0...

Page 169: ...EPSON Stylus COLOR 3000 Rev A A 16 A 3 Component Layout Figure A 7 C203 MAIN B Board Component Layout 1 ...

Page 170: ...Appendix Rev A A 17 Figure A 8 C203 MAIN B Board Component Layout 2 ...

Page 171: ...EPSON Stylus COLOR 3000 Rev A A 18 Figure A 9 C203 PNL Board Component Layout ...

Page 172: ...Appendix Rev A A 19 Figure A 10 C172 PSB Board Component Layout ...

Page 173: ...EPSON Stylus COLOR 3000 Rev A A 20 Figure A 11 C172 PSE Board Component Layout ...

Page 174: ...Appendix Rev A A 21 A 4 Exploded Diagrams Figure A 12 Stylus 3000 Exploded Diagram 1 ...

Page 175: ...EPSON Stylus COLOR 3000 Rev A A 22 Figure A 13 Stylus 3000 Exploded Diagram 2 ...

Page 176: ...Appendix Rev A A 23 Figure A 14 Stylus Color 3000 Exploded Diagram 3 ...

Page 177: ...EPSON Stylus COLOR 3000 Rev A A 24 Figure A 15 Stylus Color 3000 Exploded Diagram 4 ...

Page 178: ... mm D X 240 mm H 31 8 inch W X 22 2 inch D X9 4 inch H Weight 22 5 Kg Figure A 12 illustrates the exterior dimension of the Stylus COLOR 3000 385 mm 15 1 434 mm 17 0 565 mm 22 2 380 mm 14 9 793 mm 31 2 810 mm 31 8 240 mm 9 4 Figure A 16 Dimension of the Stylus COLOR 3000 ...

Page 179: ...9 Sesto S Giovanni MI Italy Phone 2 262331 Fax 2 2440750 EPSON AUSTRALIA PTY LIMITED 1 70 Gibbes Street Chatswood 2067 NSW Australia Phone 2 9903 9000 Fax 2 9903 9177 EPSON SINGAPORE PTE LTD No 1 Temasek Avenue 36 00 Millenia Tower Singapore 039192 Phone 065 3377911 Fax 065 3341185 EPSON HONG KONG LTD Rooms 4706 10 47 F China Resource Bldg 26 Harbour Road Wanchai Hong Kong Phone 2585 4300 Fax 2827...

Page 180: ...EPSON SEIKO EPSON CORPORATION ...

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