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Canon Color Bubble Jet BJC-5000 Series, Service Manual

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Canon Color Bubble Jet BJC-5000 Series Service Manual Download Page 92

3.2.4  Bubble head unit structure

1)  Bubble jet nozzles

The ink held by the ink sponge goes through a mesh-type ink filter and flows to the
bubble jet nozzles via the ink passage of the cartridge body.
When the head-drive current is supplied to the heater board, the ink boils and
produces several ink bubbles.  Eventually, only one ink bubble is formed by boiling.
The head-drive current is turned off before an ink droplet leaves the nozzle.  The
bubbling, however, continues with the residual heat of the heater and causes ink
droplets to be discharged from the tips of the nozzles.
After an ink droplet is discharged, the nozzle is replenished with more ink from the
ink sponge.

The heater board of the printhead holds the heater and its circuits which
are formed on a silicon plate using semiconductor technology.  The silicon
plate which contains these electrical circuits is bonded to an aluminum
base.  A plastic cover molded to fit the nozzles is also provided.

Part 4: Technical Reference

4-20

BJC-5000

NOTE

Plastic Cover

Signal Circuit

Print Board

Extra-fine Wire
Connecting Section

Protective Bond of Wire
Connecting Section

Silicon Plate

Aluminum Plate

Heater Plate

Bubble Jet Nozzle

Common Ink Chamber

Faceplate (Part of plastic cover)

Joint Pipe

Ink Filter

Ink passage from ink sponge

Turning on the heater

While heater is on

Turning off the heater

Bubble shrinkage,

ink droplet formation

Ink droplet discharge

1

2

4

5

3

Figure 4-15  Bubble Jet Nozzles (Partial View)

Summary of Contents for Color Bubble Jet BJC-5000 Series

Page 1: ...QY8 1359 000 REVISION 0 AUGUST 1998 COPYRIGHT 1998 CANON INC CANON BJC 5000 0898 SC 0 55 0 PRINTED IN JAPAN IMPRIME AU JAPON ...

Page 2: ...0898 SC 0 55 0 ...

Page 3: ......

Page 4: ...ot apply to any countries where such provisions are inconsistent with local law Trademarks The product names and company names described in this manual are the registered trademarks of the individual companies Copyright This manual is copyrighted with all rights reserved Under the copyright laws this manual may not be copied reproduced or translated into another language in whole or in part withou...

Page 5: ...ns This section explains how to operate the unit properly Information required about installation and service made Part 4 Technical Reference This section outlines the way the unit operates so you can understand it technically Part 5 Maintenance This section explains how to maintain the unit Descriptions of assembly disassembly adjustment for assembly troubleshooting procedures and wiring circuit ...

Page 6: ... prevention 1 10 3 MAINTENANCE SERVICE PRECAUTIONS 1 10 3 1 EEPROM Data Precautions 1 11 3 2 Static Electricity Precautions 1 12 3 3 Disassembly and Assembly Precautions 1 12 3 4 Built In Self Diagnosis Part 2 Product Specifications 2 1 1 PRODUCT OUTLINE 2 1 1 1 Product Outline 2 2 1 2 Features 2 3 1 3 BJ Cartridge 2 3 1 3 1 Color BJ cartridge BC 21e 2 3 1 3 2 Black BJ cartridge BC 23 2 4 1 3 3 Bl...

Page 7: ...e 3 17 3 3 Self Test Printout 3 18 3 4 Service Mode 3 20 3 5 Service Mode Print Sample 3 20 3 5 1 Ripple pattern 3 20 3 5 2 Service information printing Part 4 Technical Reference 4 1 1 OVERVIEW 4 1 1 1 Printer Block Diagram 4 2 1 2 Initialization Sequence Flowchart 4 3 1 3 Print Signal Flow 4 3 1 3 1 Data between host computer and printer 4 3 1 3 2 Print signal flow in the printer 4 4 1 4 Print D...

Page 8: ...lock diagram 4 38 4 2 2 Logic section components 4 41 5 SENSOR FUNCTIONS 4 41 5 1 Pick Up Roller Sensor 4 41 5 2 Paper End Sensor 4 42 5 3 Home Position Sensor 4 42 5 4 Purge Sensor 4 42 5 5 Cover Open Sensor 4 42 5 6 Printer Temperature Sensor 4 42 5 7 Head Temperature Sensor 4 42 5 8 Auto Alignment Sensor 4 43 5 9 Waste Ink Amount Detection Part 5 Maintenance 5 1 1 Maintenance 5 1 1 1 Parts for ...

Page 9: ...5 10 5 3 2 Adjustment 5 12 6 TROUBLESHOOTING 5 12 6 1 Troubleshooting 5 12 6 1 1 Overview 5 12 6 1 2 Troubleshooting cautions 5 14 6 2 Error Condition Diagnostics 5 14 6 2 1 Diagnostic flowcharts 5 17 6 2 2 Error recovery 5 34 7 LOCATION AND SIGNAL ASSIGNMENT 5 34 7 1 Logic Board 5 37 8 CIRCUIT DIAGRAMS 5 37 8 1 Parts Layout 5 37 8 1 1 Logic board 5 39 8 2 Circuit Diagrams V ...

Page 10: ...2 18 Figure 2 11 Timing Chart Nibble Mode 2 18 Figure 2 12 Timing Chart ECP Mode 2 19 Figure 2 13 Timing Chart ECP Mode Reverse Mode 3 1 Figure 3 1 Unpacking 3 2 Figure 3 2 Printer Site Selection Dimensions 3 3 Figure 3 3 Connecting the Interface Cable 3 3 Figure 3 4 Connecting the AC Power Cord 3 4 Figure 3 5 Removing the BJ Cartridge Protectors 3 5 Figure 3 6 BJ Cartridge Handling Precautions 3 ...

Page 11: ... Multi Drop 4 28 Figure 4 20 Purge Unit 4 29 Figure 4 21 Carriage 4 31 Figure 4 22 Paper Feed Motor Power Switching 4 32 Figure 4 23 Paper Feed 4 33 Figure 4 24 Automatic Printhead and Paper Clearance Adjustment 4 35 Figure 4 25 Paper Separator 4 36 Figure 4 26 Printer Electrical System 4 37 Figure 4 27 Logic Board Block Diagram 4 37 Figure 4 28 Printer Block Diagram 4 40 Figure 4 29 Motor Driving...

Page 12: ... 12 Table 4 1 Printing Modes and Driving Method 4 22 Table 4 2 List of BJ Cartridge Signal Contacts 4 25 Table 4 3 Head Installation Status and Signal Detection 4 26 Table 4 4 Ink Consumption During Cleaning as a Guideline 4 43 Table 4 5 List of Sensor Functions 5 8 Table 5 1 Tools Required for Head Gap Adjustment VIII ...

Page 13: ...5 2 1 Handling BJ Cartridges 1 7 2 2 Handling Ink Cartridges Color BJ Cartridge 1 8 2 3 Printer Precautions 1 10 3 MAINTENANCE SERVICE PRECAUTIONS 1 10 3 1 EEPROM Data Precautions 1 11 3 2 Static Electricity Precautions 1 12 3 3 Disassembly and Assembly Precautions 1 12 3 4 Built In Self Diagnosis Part 1 SAFETY AND PRECAUTIONS ...

Page 14: ......

Page 15: ...aper feed motor Feed roller pressure rollers spurs pick up roller slow down gear eject roller and transmission roller Also note that the spurs are made of metal and have sharp edges Do not touch the spurs especially with bare hands Serious injury could be caused by touching the spurs unintentionally Part 1 Safety and Precautions BJC 5000 1 1 Figure 1 1 Moving Parts of the Printer Eject Roller Feed...

Page 16: ... Figure 1 2 Ink Path Caution Although the ink is non toxic it contains organic solvents BC 23 Diethylenglycol 111 46 5 glycerin 56 81 5 BC 21e Isopropyl alcohol 67 63 0 glycerin 56 81 5 BC 22e Photo Isopropyl alcohol 67 63 0 glycerin 56 81 5 ethylenglycol 107 21 1 BC 20 reference Isopropyl alcohol 67 63 0 glycerin 56 81 5 ethylenglycol107 21 1 Never get ink in your eyes and mouth If any ink should...

Page 17: ... on the inside of the front cover and platen Ink on these parts can cause stains on the printing paper hands or clothing Wipe the ink off these parts periodically with a soft moist cloth Part 1 Safety and Precautions BJC 5000 1 3 Figure 1 3 Ink Path of the BJ Cartridge Black BJ Cartridge Color BJ Cartridge Nozzles Ink Outlet Ink Outlet Joint Pipe Nozzles Nozzles Joint Pipe Figure 1 4 Ink Mist Fron...

Page 18: ...late of the head when the head temperature becomes high the carriage will not move to the cartridge replacement position even when the user opens the front cover During this time the printer beeps 5 times and the indicator lights in orange If this happens wait for a while and then either press the RESUME button or close the front cover once and open it again If the head temperature increases furth...

Page 19: ...k feed To prevent clogging the nozzles with foreign substances and dried out ink install the BJ cartridge in the printer after the head cap and protective tape are removed so that the printer caps the nozzles When storing the BJ cartridge make sure the nozzles of the cartridge are capped or store the cartridge in the BJ cartridge container Foreign substances on the nozzles or dried up ink will res...

Page 20: ...d in the printer or store it in the BJ cartridge container while carrying transporting or storing the printer If the BJ cartridge is removed from the printer and left lying about printing defects may occur when it is used again due to clogging of nozzles and dried out ink If the BJ cartridge is removed to relocate the printer ink could leak out from the cap section 2 1 5 Ink electroconductivity Th...

Page 21: ...stances to the joint pipes connected to the BJ cartridge never touch the ink outlets of the ink cartridge After removing the cap from the ink cartridge immediately install the ink cartridge in the BJ cartridge to prevent the nozzles from clogging due to dried out ink Do not remove an ink cartridge from the BJ cartridge unless it needs to be replaced Color Ink Cartridge Yellow Ink Outlet Joint Pipe...

Page 22: ...surface with the paper might increase causing more ink to adhere to each spur As a result should the spur cleaner fail to wipe the ink from the spurs completely a dotted line smear may be printed on the paper or a trace may be produced If this happens replace the spur unit with a new one 2 3 2 Static electricity damage prevention Never touch the electrical contacts to the cartridge of the carriage...

Page 23: ...tically capped when the printer is turned off by pressing the POWER button Do not unplug the AC power cord of the AC adapter before turning off the printer with the POWER button Otherwise the printer will be stopped without capping the nozzles which could cause ink leaks and ink bonding In case this happens plug in the AC power cord turn on the printer by pressing the POWER button turn it off by p...

Page 24: ...e waste ink amount exceeds the full capacity and waste ink may start leaking depending on the waste ink amount already absorbed by the waste ink absorbers The memory data in the replacement logic board EEPROM is not defined After replacing the logic board EEPROM reset the EEPROM Check the above waste ink absorbers and set the total waste ink amount counter After resetting the EEPROM install the bl...

Page 25: ...ng procedure If the printer operation stops due to waste ink full or other errors follow the required troubleshooting procedure in Part 5 6 TROUBLESHOOTING page 5 12 3 2 Static Electricity Precautions Static electricity produced by friction of clothing could damage the electrical parts or change their electrical characteristics Before disassembling the printer to perform any servicing touch a meta...

Page 26: ...tic hooks can break easily When you disassemble the printer use a screwdriver and do not apply excessive force on the plastic hooks 3 4 Built in Self Diagnosis The printer is provided with a self diagnosis feature which analyzes hardware defects The results of the self diagnosis are shown by the indicators and the beeper See Part 3 3 1 Error Indications page 3 14 for more information Part 1 Safety...

Page 27: ... 2 Features 2 3 1 3 BJ Cartridge 2 5 1 4 Dual Cartridge System 2 5 1 5 BJ Cartridge Container 2 6 1 6 Consumables 2 7 2 SPECIFICATIONS 2 7 2 1 Printer Specifications 2 9 2 2 Paper Specifications 2 12 2 3 Interface Specifications Part 2 PRODUCT SPECIFICATIONS ...

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Page 29: ...idge High density monochrome printing is offered with a black BJ cartridge that adopts a newly developed ink The reproduction of color graduations has been improved through the combined use of these cartridges In addition the printing environment is further expanded by the possibilities of printing on up to A3 size paper and banner long paper printing by manual feeding This is a high performance s...

Page 30: ... achieve image maintenance 5 Exclusive Windows machine using a dedicated driver Emulation is not supported 6 A BJ cartridge container is supplied with the printer for storing the removed BJ cartridge 7 ECP mode compliant 8 Banner printing capabilities 9 Built in automatic cut sheet feeder without paper lever 10 Improved operability Provides an automatic head to paper distance adjustment mechanism ...

Page 31: ...printing by using large size dots effectively in high density areas A total of 136 head nozzles are provided in a row 24 nozzles for yellow ink 24 nozzles for magenta ink 24 nozzles for cyan ink and 64 nozzles for black ink The printer can print out approximately 225 sheets with black ink 1500 character standard text pattern in the Standard mode and approximately 100 sheets with color ink 7 5 duty...

Page 32: ...onths have elapsed since the cartridge was removed from the package or if the print quality does not improve even after cleaning the head five times or more replace the BJ cartridge with a new one Since the four color inks are integrated the entire photo BJ cartridge must be replaced when one color ink runs out The drop modulation technology minimizes graininess by using the small size dots for pr...

Page 33: ...d configuration to obtain the highest print quality Resolution Plain paper High Mode 1440x720dpi Standard Mode 720x720dpi Resolution Other specified papers High Mode 1440x720dpi Standard Mode 720x720dpi The BJ cartridge combinations 3 and 4 can be used by installing the BC 21e cartridge on the left side of the carriage The BC 23 BC 21e and BC 20 reference cartridges can be installed independently ...

Page 34: ...he black ink cartridge and color ink cartridge They are identical to those mounted in the color BJ cartridge BC 21e Either cartridge can be used for half a year after the seal is opened The number of sheets that can be printed are as follows Black ink cartridge Approx 225 sheets Standard mode 1500 character standard text pattern Color ink cartridge Approx 100 sheets Standard mode 7 5 duty per colo...

Page 35: ... a time through the manual feeding slot Two to six sheets of banner paper can be loaded from the manual feeding slot 4 Paper weight Automatic feeding 64 to 105g m2 17 lbs to 28 lbs Manual feeding 64 to 550g m2 17 lbs to 146 lbs Max thickness 0 8 mm 5 Printing speed burst speed Monochrome printing BC 21e 2 360cps 10 cpi Monochrome printing BC 20 2 BC 23 x 2 720cps 10 cpi 6 Printing direction Bi dir...

Page 36: ...e Weight Approx 85g 3 0 oz Photo BJ cartridge BC 22e Photo Type Color BJ cartridge with ink tanks inside Printhead 136 nozzles vertically lined Blk 64 nozzles Y M C 24 nozzles 3 Ink colors Black cyan magenta yellow Service life Approx 50 sheets in the photo standard mode per cartridge Weight Approx 80g 2 8 oz 14 Sensor functions Paper run out Provided Installation of cartridge Provided Cartridge i...

Page 37: ... Canon Bubble Jet Paper LC 301 Letter Legal A3 A4 High resolution paper Canon High Resolution Paper HR 101 Letter A3 A4 Glossy photo paper Canon Glossy Photo Paper GP 201 Letter A4 High gloss film Canon High Gloss Film HG 201 Letter A3 A4 OHP film Canon Transparency Film CF 102 Letter A4 Back print film Canon Back Print Film BF 102 Letter A3 A4 Fabric Canon Fabric Sheet FS 101 Legal Banner Canon B...

Page 38: ...film Max 30 sheets Back print film Max 10 sheets Envelopes Max 15 envelopes Glossy photo paper 1 sheet T shirt transfers 1 sheet Fabric 1 sheet A3 size paper can be loaded from the manual feeding slot 1 sheet at a time Two to six sheets of banner paper can be loaded from the manual feeding slot Part 2 Product Specifications BJC 5000 2 10 NOTE ...

Page 39: ... Possible printing area Banner paper 3 4mm A4 20 5mm 40mm When printing 6 pages 1 2 3 4 5 6 3 1mm 11 3mm 28 0mm 29 3mm 29 3mm 28 0mm 5 1mm 5 1mm A4 size Letter size 2 20 5mm 1 16 0mm 2 20 5mm 3 12 0mm 4 21 0mm 4 12 6mm 3 21 6mm 1 Printed with the black BJ cartridge 2 Printed with the color BJ cartridge or the photo BJ cartridge 3 Printed with the black BJ cartridge on Legal size paper 4 Printed wi...

Page 40: ...lent On cable Amphenol 57 30360 or equivalent 7 Input output signals and pin assignment 1 All RETs are connected to GND 2 N C means no connection 3 The level is pulled up with 5 0V through 3 3k resistor 4 The level is pulled up with 5 0V through 390 resistor Compatible mode No Signal I O No Signal I O 1 STROBE IN 19 STROBE RET 1 2 DATA1 IN 20 DATA1 RET 3 DATA2 IN 21 DATA2 RET 4 DATA3 IN 22 DATA3 R...

Page 41: ...rseReq IN 14 HostAck IN 32 PeriphReq OUT 15 Not Defined 33 Not Defined 16 Gnd 34 Not Defined 17 Gnd 35 Not Defined 18 Vcc 36 1284Active IN Nibble mode No Signal I O No Signal I O 1 HostClk IN 19 Signal Gnd 2 Data1 OUT 20 Signal Gnd 3 Data2 OUT 21 Signal Gnd 4 Data3 OUT 22 Signal Gnd 5 Data4 OUT 23 Signal Gnd 6 Data5 OUT 24 Signal Gnd 7 Data6 OUT 25 Signal Gnd 8 Data7 OUT 26 Signal Gnd 9 Data8 OUT ...

Page 42: ...gnal goes HIGH and the SELECT and ERROR signals go LOW The signal goes LOW when the paper is set and fed At this time the ERROR and SELECT signals go from LOW to HIGH SELECT Output When the printer is READY this signal goes HIGH This signal goes LOW when an error occurs paper out paper jam AUTO FEED XT Input When this signal is LOW the automatic line feed mode Carriage Return and Line Feed is effe...

Page 43: ... Busy Input Reverse data transmission phase Indicates that the host computer is already receiving data from the printer when this signal is LOW After that when the Ptr Clk signal in the received data goes HIGH to LOW this signal synchronizes with the Ptr Clk signal and goes to HIGH Reverse standby phase This signal goes LOW to HIGH after the Ptr Clk signal goes HIGH to LOW and enters the reverse d...

Page 44: ...ta from the host computer Reverse data transmission phase Indicates whether the data sent from the printer to the data bus is a command or data LOW Command HIGH Data Ack Reverse Output This signal remains HIGH when data is transferred from the host computer to the printer Reverse data transmission phase This signal remains LOW The Reverse Req INIT signal is a switching request from the host comput...

Page 45: ...ed by the printer during forward data transmission this signal goes HIGH to LOW When the host computer switches from forward data transmission to reverse data transmission this signal goes LOW to HIGH together with the Ack Reverse PE signal in response to the falling edge of the Reverse Req INIT signal which is a switching request from the host computer 1284 Active Input This signal goes LOW to HI...

Page 46: ...eq Data 1 to 8 Host Busy Host Clk Ptr Clk Ptr Busy Data Avail Xflag TP TP TP Unknown Data Nibble mode supported Figure 2 11 Timing Chart Nibble Mode 0001 0000 1284 Active Data Host Ack Host Clk Periph Clk Xflag TP TP TP Periph Ack Periph Req Byte0 Byte1 nCmd nCmd ECP mode supported TP TP Min setting Ack Reverse 1 8 Figure 2 12 Timing Chart ECP Mode ...

Page 47: ...BJC 5000 2 19 Figure 2 13 Timing Chart ECP Mode Reverse Mode Byte0 1284 Active Periph Ack Periph Clk Host Clk Host Ack Data 1 8 nAck Reverse nPeriph Request XFlag nReverseRequest Byte1 nCmd nCmd nPeripheralRequest ECP Mode Supported ...

Page 48: ...Part 2 Product Specifications BJC 5000 2 20 This page intentionally left blank ...

Page 49: ...1 1 6 Banner Print 3 12 1 7 Names of Parts and Their Functions 3 13 2 TRANSPORTING THE PRINTER 3 13 2 1 Carrying the Printer 3 13 2 2 Transporting the Printer 3 14 3 PRINTER SERVICING FUNCTION 3 14 3 1 Error Indications 3 16 3 2 Cleaning the BJ Cartridge 3 17 3 3 Self Test Printout 3 18 3 4 Service Mode 3 20 3 5 Service Mode Print Sample Part 3 OPERATING INSTRUCTIONS ...

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Page 51: ... the printer make sure the items below are included Part 3 Operating Instructions BJC 5000 3 1 Figure 3 1 Unpacking BJ Cartridge Container User s Manual Printer Driver etc BJ Cartridge Packing Packing Box Packing Packing BJ Cartridge Tape Tape Tape Tape Packing ...

Page 52: ...temperature 5 C to 35 C Relative humidity 10 to 90 no condensation Do not place the printer in direct sunlight Do not set up the printer in a place where the temperature changes suddenly such as near air conditioners Do not leave the printer in a place where the temperature goes up rapidly such as inside a car Do not expose the printer to dust and sea breeze which carries salt Do not set up the pr...

Page 53: ... interface connector on the back of the printer After connecting the cable fasten the locking clips to secure it 3 Connect and fix the other end of the interface cable to the interface connector on the computer 1 3 2 Connecting the AC power cord Plug the AC power cord into the AC power jack on the printer The AC adapter is installed in the printer at the factory prior to shipment 2 1 Figure 3 3 Co...

Page 54: ...e BC 22e Photo See Part 2 1 4 Dual Cartridge System page 2 5 for the combinations of cartridges which can be installed on both sides of the carriage 1 Removing the BJ cartridge protectors Take out the BJ cartridge from its package and remove the head cap and tape on the nozzles as shown in the figure Do not reuse the protective head cap and tape Any foreign substance on the cap or tape could mix w...

Page 55: ... carriage moves to the capping position If the BJ cartridge is not installed properly when you close the front cover the carriage will not return to the capping position If the front cover is not closed properly the carriage will not return to the home position either Figure 3 6 BJ Cartridge Handling Precautions Figure 3 7 Installing the BJ Cartridge When the BJ cartridge is installed on the right...

Page 56: ...om the printer in the supplied BJ cartridge container If the printer has been operating for a prolonged period the aluminum plate of the BJ cartridge will get very hot If it is hot opening the front cover will activate the protective function The beeper will sound five times and the carriage will not move the cartridge replacement position Wait a few minutes before attempting to replace the BJ car...

Page 57: ...s or more replace the color BJ cartridge 2 Removing an ink cartridge Open the front cover to move the carriage to the cartridge replacement position Flip up the cartridge lock lever as described in 1 3 4 3 Replacing the BJ cartridge page 3 6 Then pull out the upper portion of the ink cartridge to be replaced to remove it as shown in the figure below There will be ink on and around the ink outlets ...

Page 58: ...er The container can store any one of the black BJ cartridges BC 23 and BC 20 reference color BJ cartridge BC 21e and photo BJ cartridge BC 22e Photo Store the color BJ cartridge BC 21e without removing the black and color ink cartridges inside it Do not shake or drop the BJ cartridge container Ink could leak out Storing the Color BJ Cartridge Storing the Black or Photo BJ Cartridge Close Open Pus...

Page 59: ...off it executes a power off sequence operation to cap the nozzles of the BJ cartridge for their protection and to prevent ink leakage The indicator blinks in green to indicate that the power off sequence is under progress When the power off sequence is complete the indicator goes out Make sure the indicator is off first before unplugging the AC power cord Never turn off the printer by unplugging t...

Page 60: ... Bubble Jet Paper LC 301 A3 A4 LTR LGL Auto Manual Max 13 mm High Resolution HR 101 A3 A4 LTR Auto Manual Max 100 sheets Glossy photo paper GP 201 A4 LTR A4 LTR Auto Manual 1 sheet High gloss film HG 201 A3 A4 LTR Manual OHP film CF 102 A4 LTR Auto Manual Max 30 sheets Back print film BF 102 A4 LTR Auto Manual Max 10 sheets Fabric sheet FS 101 Vertical 241 x Auto Manual 1 sheet Horizontal 356 mm E...

Page 61: ...h top margin for banner printing is set to 0 mm at the start of printing To avoid printing on the platen however printing will start 3 mm from the initial top margin Set an extra sheet at the end in case the bottom edge is not printed on the last page Banner printing uses a large quantity of ink To avoid ink run out in the middle of printing it is recommended to use a new ink cartridge right from ...

Page 62: ...aper pull out the out put tray extension guide before starting the printing operation The paper delivery flaps stand up automatically when the paper output tray is pulled out Insert paper into this slot to feed the paper manually Connect the interface cable here Turns the printer on or off Indicates the power on and off statuses of the printer This indicator lights or blinks in green while the pri...

Page 63: ...capping method Never turn off the printer by unplugging the AC power cord without first pressing the POWER button Otherwise the printer is turned off before it can cap the BJ cartridge Also do not carry a BJ cartridge removed from the printer by itself If the BJ cartridge is not capped the ink may leak or dry out in the nozzles 2 2 Transporting the Printer Follow the procedure below to transport t...

Page 64: ...ks in green once and orange twice 7 times Cleaning error Alternately blinks in green once and orange 3 times 7 times Sheet feeder error Alternately blinks in green once and orange 4 times 7 times Temperature sensor error Alternately blinks in green once and orange 5 times 7 times Waste ink full error Alternately blinks in green once and orange 6 times 7 times Head temperature error Alternately bli...

Page 65: ... and then open it again 6 Waste ink full warning The total waste ink amount recorded by the EEPROM is approaching the specified limit Errors that cannot be corrected by a user Corrective action Press the POWER button and turn off the printer 7 Home position error The home position of the carriage cannot be detected 8 Cleaning error The head cleaning or capping detection at the capping position is ...

Page 66: ...he type and the number of BJ cartridges and takes approximately 35 to 75 seconds After the cleaning execute a self test printout again to make sure that the nozzles on the BJ head are cleaned The printer automatically executes the cleaning operation at the following times 1 When the printer is turned on by pressing the POWER button for the first time after connecting the AC power cord 2 After a BJ...

Page 67: ...nter starts in the normal operation mode The self test printout prints the following information on 1 page ROM version Total number of pages passed Nozzle check pattern After printing the above information the printer returns to normal printing standby status Use A4 LTR size paper for the self test printouts The self test printout function requires the A4 LTR size paper width If you use narrower p...

Page 68: ...tton not the RESUME button the printer will turn off automatically without changing the ON OFF setting Table 3 3 Service Mode Function Enters the normal operation mode Ripple pattern print Service information print Auto alignment sensor calibration Waste ink counter data clear Waste ink counter setting 25 Waste ink counter setting 50 Waste ink counter setting 75 First Time Flag ON OFF Carriage LF ...

Page 69: ...function only when it is necessary and you are absolutely sure After executing the EEPROM all clear function always execute the Auto alignment sensor calibration function Unless you execute this function an EEPROM error will occur when the printer is turned on Also after executing the EEPROM all clear function check the waste ink amount and either replace the waste ink absorber or set the waste in...

Page 70: ...s printing temporarily To resume printing press the RESUME button again Figure 3 17 Ripple Pattern Sample 3 5 2 Service Information Printing Prints the nozzle check pattern and printer setting conditions operating status The nozzle check pattern on the left is printed with the BJ cartridge installed on the right side of the carriage and the pattern on the right is printed with the BJ cartridge ins...

Page 71: ...ead Overheating Protection Control 4 14 2 8 Auto Power Off 4 15 3 PRINTER MECHANICAL SYSTEM 4 15 3 1 Overview 4 17 3 2 BJ Cartridge 4 26 3 3 Purge Unit 4 29 3 4 Carriage 4 32 3 5 Paper Feed Cut Sheet Feeder 4 36 4 PRINTER ELECTRICAL SYSTEM 4 36 4 1 Overview of Printer Electrical System 4 37 4 2 Logic Section 4 41 5 SENSOR FUNCTIONS 4 41 5 1 Pick Up Roller Sensor 4 41 5 2 Paper End Sensor 4 42 5 3 ...

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Page 73: ...AM VM 24 0VDC Vcc 5VDC J3 J6 J7 J2 J5 J4 J1 Control ROM BJ Cartridge RIGHT Auto Alignment Sensor Carriage Paper Feed Motor Purge Sensor Logic Board Carriage Motor Paper Feed Motor Driver Carriage Motor Driver MPU Printer Controller BJ Cartridge LEFT Home Position Sensor Figure 4 1 Printer Block Diagram ...

Page 74: ...detection Automatic cleaning operation Connect the AC plug to the AC outlet MPU and printer controller initialization ROM RAM EEPROM check Turn on the printer Drives the paper feed motor drives Sets the pickup roller and paper lifting plate to the initial position When the automatic cleaning is not performed operates the maintenance jet Indicator lights green Purge unit initialization Carriage pos...

Page 75: ... is described below a The printing information column data matching with the nozzle arrangement of the built in printhead including control signals output by the host computer is loaded through the parallel interface into the MPU printer controller on the logic board The printing information is separated into control commands and print data based on the data stored in the control ROM The control c...

Page 76: ...antly internal conditions such as the head s rank printer temperature and head temperature are monitored and the heater drive pulse width is varied before the pulse is output Furthermore the print drive signal from the printer controller is transferred to the shift resistor in the BJ head according to the HLATCH timing When the print drive signal HDATA is latched and the print control and heater d...

Page 77: ...head temperature are monitored and the heater drive pulse width is varied before the pulse is output HLATCH 0 1 2 3 4 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 HDATA HCLOCK Odd ENB Even ENB BENB 0 BENB 1 BENB 2 HENB 0 1 2 HENB 3 Odd ENB Even ENB BENB 0 BENB 1 BENB 2 HENB 0 1 2 HENB 3 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 The signals HENEB 0 1 2 and 3 are driven independently when the multi...

Page 78: ... AC adapter has been unplugged to turn off the printer plug it in again press the POWER button to turn on the printer and turn it off Then unplug the AC power cord or AC adapter Part 4 Technical Reference 4 6 BJC 5000 Press the POWER button Soft power off Capping End Cap off Auto cleaning if needed Indicator blinks Paper output operation Detection of carriage in home position Indicator turns off D...

Page 79: ...rface for the compatible mode transfers data in 8 bit blocks Data is transferred with the STROBE BUSY and ACKNLG handshake signals When the printer receives the data Data 1 to 8 and STROBE signal from the host computer the printer controller which is controlling the parallel interface outputs the BUSY signal and latches the data at the falling edge of the STROBE signal After the BUSY signal is out...

Page 80: ...s the HostBusy signal go from LOW to HIGH After the printer confirms the falling edge of the HostBusy signal for the second time it outputs the higher 4 bits on the control signal line If there is no data to be sent to the host computer after the HostBusy signal goes from LOW to HIGH the printer makes the DataAvail signal go from LOW to HIGH and is put on standby status for the next data transfer ...

Page 81: ...hich sends data from printer to host computer During the reverse data transfer phase the printer makes HostAck go from HIGH to LOW when it detects the rising edge of PeriphClk When the host computer is able to receive data from the printer HostAck goes from HIGH to LOW and when it receives data HostAck goes from LOW to HIGH The falling edge indicates a LOW and the rising edge indicates a HIGH 4 9 ...

Page 82: ...10 BJC 5000 Figure 4 10 Timing Chart ECP Mode Reverse Mode Byte0 1284 Active Periph Ack Periph Clk Host Clk Host Ack Data 1 8 nAck Reverse nPeriph Request XFlag nReverseRequest Byte1 nCmd nCmd nPeripheralRequest ECP Mode Supported ...

Page 83: ...rinting with two or more delayed passes there is less color bleeding because the color printed immediately before is relatively stable by the time the next color is printed over it When print data is processed internally by the printer the data is recognized and the number of ink nozzles to be used by the black ink is automatically changed Characters are printed by taking preventive measures for b...

Page 84: ...kHz Other Paper 720 x 720 dpi N A 1440 x 720 dpi N A N A 2 pass 4 pass Uni directional Uni directional 10kHz 10kHz BC 21e BC 21e Plain Paper 360 x 360 dpi 360 x 360 dpi 720 x 720 dpi N A N A 1 pass 1 pass 2 pass Bi directional Uni directional Uni directional 6 51kHz 6 51kHz 10kHz Other Paper 720 x 720 dpi N A 1440 x 720 dpi N A N A 2 pass 4 pass Uni directional Uni directional 10kHz 10kHz BC 21e B...

Page 85: ...nd interprets the information about the correlation between the print data and head nozzle With this information head characteristics can be corrected by the printer driver The following adjustments are performed a Alignment of vertical and horizontal directions When printing is performed with dual cartridges the auto alignment sensor detects the displacement of the dot alignment in the vertical a...

Page 86: ...printing 2 7 Head Overheating Protection Control If the ink runs out and the printing operation is continued the bubble jet head can become extremely hot If the head temperature sensor in the bubble jet head detects a temperature higher than the designated temperature limit head overheating control is executed Protection level 1 This level prevents the user from touching the aluminum plate of the ...

Page 87: ... purge unit is driven by the paper feed motor It absorbs the ink of the BJ cartridge and removes the ink in the cap When the printer is not in use the purge unit caps the nozzles of the BJ cartridge for protection The wiper unit provides a wiping function to wipe the head face and the maintenance jet receiving function 3 Carriage The carriage is moved horizontally back and forth across the paper b...

Page 88: ...en by the paper feed motor and each paper sheet loaded in the sheet feeder is picked up and fed into the paper feed mechanism The paper feed mechanism driven by the paper feed motor turns the feed rollers to feed the paper vertically Part 4 Technical Reference 4 16 BJC 5000 ...

Page 89: ...event this the cartridge cover is provided with a pressure adjusting hole for maintaining constant pressure inside the cartridge body 2 Ink sponge The sponge is soaked with black ink It is compressed and stored in the cartridge body 3 Cartridge body The plastic case connects the ink sponge with the bubble jet head unit via the ink filter 4 Bubble jet head unit Ink is discharged through 128 bubble ...

Page 90: ...artridge body 3 Ink suppliers The ink suppliers supply ink from the ink sponges to the joint sections of the cartridge at a constant pressure 4 Ink cartridge body The plastic case connects the ink sponges with the color BJ cartridge via the ink suppliers 5 Rubber sheet The rubber sheet seals the joint sections between the ink cartridge and BJ cartridge 6 Ink passage section This is a passage throu...

Page 91: ...dge body 2 Ink sponge Each ink color black cyan yellow magenta is soaked in its own separate sponge The cyan yellow and magenta sponges are compressed and stored in the same color ink cartridge body 3 Cartridge body The plastic case connects the ink sponge with the bubble jet head unit via the ink filter 4 Ink passage section This is a passage through which ink flows from the ink cartridge to the ...

Page 92: ...nished with more ink from the ink sponge The heater board of the printhead holds the heater and its circuits which are formed on a silicon plate using semiconductor technology The silicon plate which contains these electrical circuits is bonded to an aluminum base A plastic cover molded to fit the nozzles is also provided Part 4 Technical Reference 4 20 BJC 5000 NOTE Plastic Cover Signal Circuit P...

Page 93: ...hird 24 nozzles for cyan ink and the remaining 64 nozzles for black ink The color and photo BJ cartridges have a total of 136 nozzles 3 Signal contact contact pad 28 29 24 25 26 23 22 21 20 16 17 18 19 27 15 3 11 12 13 14 7 9 10 4 6 5 2 1 8 BJ Cartridge Figure 4 16 Nozzle Arrangement Nozzle 1 Nozzle 128 Nozzle 1 Nozzle 136 Yellow Nozzles 1 to 24 Magenta Nozzles 25 to 48 Cyan Nozzles 49 to 72 Black...

Page 94: ...ven ENB OUT Heat enable for even number nozzles 19 Odd ENB OUT Heat enable for odd number nozzles 20 BENB1 OUT Signal used for generating output signal of block enable decoder 21 BENB2 OUT Signal used for generating output signal of block enable decoder 22 BENB3 OUT Signal used for generating output signal of block enable decoder 23 HVdd OUT IC driver voltage 5V 24 HCLK OUT Print data transfer sig...

Page 95: ... HVdd GNDL TOP VHD W HT HTA HTB HTC HTD SEL1 SEL2 BE0 BE1 BE2 BE3 Color BJ cartridge Multi Drop and photo BJ cartridge Multi Drop have the same circuit configuration except for the ID1 connection Temperature Control Heater x 2 272 bit Tr Array Heater 1A Heater 1B Heater 2A Heater 2B Heater 3A Heater 3B Heater 4A Heater 4B Heater 8A Heater 8B Heater 9A Heater 9B Heater 16A Heater 16B Heater 17A Hea...

Page 96: ... signals Sub heater This heater maintains optimum conditions in the nozzle for discharging ink Temperature control heater This heater controls the head temperature to stabilize the ink discharge amount Rank resistor To perform optimum ink discharge control manufacturing inconsistencies in the heater characteristics of each BJ cartridge are categorized into 13 types which are identified by changing...

Page 97: ... black color or photo BJ cartridge based on ID0 pin 11 ID1 pin 12 and INKS2 pin 13 of the cartridge signal contacts If the printer is turned on without the BJ cartridge for example if a user turns on the printer immediately after unpacking the printer the carriage automatically moves to the cartridge replacement position regardless of its previous position Also if the printer is on and the cartrid...

Page 98: ...e only the left cap performs cleaning clean BJ cartridges individually when 2 BJ cartridges are installed on the carriage Note also that you cannot clean only one of the BJ cartridges When the Black BJ Cartridge is installed Approximate Ink Consumption During BJ cartridge replacement Approx 0 2 g Power on for the first time after connecting the AC power cord Approx 0 2 g Power on after 72 hours or...

Page 99: ...BJ cartridge during cleaning by means of a pumping operation The sucked ink is sent to the waste ink absorber of the base unit After ink is sucked the carriage is moved to the left from the capping position and the pumping operation is performed again to discharge the waste ink accumulated in the rubber cap and waste ink tube to waste ink absorbers 4 Maintenance jet receiving section The maintenan...

Page 100: ...Used for capping Wiper Unit Slide Lock Pin Purge Unit Waste Ink Tube Carriage Lock Pin Slide Lock Pin Purge Drive Gear Pump Unit Cap Used for sucking and capping Maintenance Jet Receiving Section Wiper Unit Purge Sensor Flag Figure 4 20 Purge Unit ...

Page 101: ...switching When the carriage moves farther right from the capping position the transmission arm is unlocked by sliding the slide lock pin of the purge unit The paper feed motor used for feeding paper during printing can be switched to drive the purge unit and sheet feeder Carriage Motor Carriage Guide Frame Carriage Ribbon Cable Locking Lever Contact Head Holder Carriage Home Position Sensor Carria...

Page 102: ...g section when the carriage is located at the home position 3 Paper feed motor switching section The paper feed motor drives either the purge unit paper feed or sheet feeder according to the position of the carriage When the carriage is not at the extreme right end position of the printer the slide lock pin of the purge unit will lock the transmission arm operation When the carriage is moved farth...

Page 103: ...ive Gear Transmission Arm Gear Top View Slide Lock Pin Transmission Arm Paper Feed Roller Transmission Roller Eject Roller Paper Feed Roller Gear Idle Gear Purge Drive Gear Sheet Feeder Unit During paper feed When the purge unit is driven Top View Top View Figure 4 22 Paper Feed Motor Power Switching ...

Page 104: ...d Cut Sheet Feeder 3 5 1 Paper feed cut sheet feeder function Figure 4 23 Paper Feed Pressure Roller Pick Up Roller Sensor Pick up Roller Paper BJ Cartridge Paper End Sensor Spur Eject Roller Transmission Roller Paper Feed Roller Sensor Flag Pick Up Guide ...

Page 105: ... reaches the starting position for printing on the platen The paper feed is controlled during printing by controlling the rotation speed of the paper feed roller After printing the paper is delivered out by the eject roller 2 Automatic printhead and paper clearance adjustment function The paper feed roller and eject roller are pulled up by the coil spring from a lower position to a higher position...

Page 106: ...ng and pick up corner spring Therefore the pick up hook and pick up corner are pressed down to feed the paper Initial position of the pick up roller is detected when the flag is sensed by the pick up roller sensor of the photo interrupter on the logic board When paper is sensed by the paper end sensor it is fed automatically until it reaches the print starting position If paper is not sensed even ...

Page 107: ...5000 Part 4 Technical Reference When envelope postcard is fed Pick up Roller Paper Pick up Hook Pick up Corner Paper loaded status When plain paper is fed Manual paper feed mode Paper Figure 4 25 Paper Separator ...

Page 108: ...e AC input power supply into DC driving power for the logic board motor head and other parts When AC power is being supplied to the printer all printer hardware components are active except for the following heater power supply VH and Vcc of the head power supply of photo interrupters 5 total and head rank circuit J6 J7 J2 J1 J4 J5 J3 Paper Feed Motor Driver Paper Feed Motor Buzzer Carriage Motor ...

Page 109: ...tch ERROR Indicator POWER Indicator Transistor Transistor Buzzer Auto Alignment Sensor Printer Temperature Sensor TH1 Multiplexer Reset IC MPU Printer Controller Address Bus A1 to A20 Data Bus D0 to D15 Control ROM Carriage Motor Paper Feed Motor Paper End Sensor PS1 Pick Up Roller Sensor Home Position Sensor Purge Sensor Cover Open Sensor BJ Cartridge LEFT BJ Cartridge RIGHT Black BJ Cartridge He...

Page 110: ...they pass through the built in A D converter AN0 The printer s internal temperature print position information and ink reflection density are detected by the thermistor on the logic board selected by the multiplexer and the auto alignment sensor on the carriage AN1 The head temperature and head rank in the RIGHT BJ cartridge are detected by the rank resistor and head temperature sensor in the RIGH...

Page 111: ...BJ cartridges The block enable signals and odd even enable signals specify the block for the time shared drive The heat enable signals control the conduction time of the eject heater I O port Signals for the setting statuses determined by the POWER button RESET button auto alignment sensor head temperature sensor head ID paper end sensor home position sensor pick up roller sensor and purge sensor ...

Page 112: ...and driven in accordance with the switching signal from the MPU printer controller The driving IC contains two identical driving circuits Figure 4 29 Motor Driving Circuit R41 1 5K 1 16W 1 R93 1K 1 16W 1 C13 0 1m F 50V C62 VCC VM R4 2K 1 16W 1 R54 1 8K 1 16W 1 C66 6 12 14 9 8 10 17 20 16 13 24 LFA LFA LFB LFB 1 21 2 5 22 23 4 3 19 18 15 11 7 470pF R51 56K 1 16W L6219 1K 1 16W R45 1K 1 16W R44 C64 ...

Page 113: ...ler sensor detects the initial position of the sheet feeder pick up roller When the initial position is detected the flag interrupts the sensor and the sensor detection status is activated 5 2 Paper End Sensor The photo interrupter type paper end sensor uses the paper sensor arm s flag to detect the presence of paper when the front edge of the paper sheet passes through the paper feeding mechanism...

Page 114: ...er controller is converted into a digital value by the internal A D converter to detect the temperature After the printer temperature is detected the head driving control and head temperature adjustment signals control are performed accordingly 5 7 Head Temperature Sensor The head temperature sensor in the printer is a diode sensor which detects the head s internal temperature Temperature changes ...

Page 115: ...ll error occurs Table 4 5 List of Sensor Functions Sensor Function Description Status Paper detection Detected by the paper sensor Provided Paper width detection N A Not provided Home position detection Detected by the home position sensor Provided Cover open detection Detected by the cover open sensor Provided Cartridge detection Detected by the head rank resistance and Provided head temperature ...

Page 116: ...Part 4 Technical Reference 4 44 BJC 5000 This page intentionally left blank ...

Page 117: ...4 4 2 Disassembly and Reassembly Cautions 5 6 4 3 Logic Board and Waste Ink Absorber Replacement Cautions 5 8 5 ADJUSTMENTS 5 8 5 1 Adjustment Point 5 8 5 2 When Adjustment is Required 5 9 5 3 Adjustment Procedure 5 12 6 TROUBLESHOOTING 5 12 6 1 Troubleshooting 5 14 6 2 Error Condition Diagnostics 5 34 7 LOCATION AND SIGNAL ASSIGNMENT 5 34 7 1 Logic Board 5 37 8 CIRCUIT DIAGRAMS 5 37 8 1 Parts Lay...

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Page 119: ...ce BJC 5000 5 1 Level Consumable User Black BJ cartridge BC 23 and BC 20 reference Color BJ cartridge BC 21e Photo BJ cartridge BC 22e Photo Ink cartridge BCI 21 Black BCI 21 Color Service personnel None Level Periodic Maintenance User None Service personnel None Level Part User None Service personnel None ...

Page 120: ... and removing coil springs Multi meter For troubleshooting Special Tool Parts Number Use Gap gauge 1 9mm For adjusting the head gap QY9 0038 000 Tension spring For adjusting the carriage belt tension QY9 0039 000 Black BJ cartridge Procure as special servicing tool Do not use the black BJ cartridge of a user Grease MOLYKOTE PG641 Apply to the specified place as shown in Figure 5 1 CK 0562 000 ...

Page 121: ...6mg each at 2 locations Sliding Section of Purge Unit Approx 40 to 60mg Sliding Section with Chassis Approx 20mg Sliding Section with Feed Roller Approx 20 to 40mg Sliding Section with Chassis Approx 20 to 40mg Carriage Shaft Evenly apply 300 to 500mg of grease on the entire surface Carriage Guide Frame Rear Surface Evenly apply 30 to 50mg of grease on the entire surface Shaft Sliding Section Surf...

Page 122: ...bling the printer heed the following cautions 4 2 1 Fastening screws of idler pulley assembly When the screws of the idler pulley assembly are loosened during removal of the carriage or other maintenance services be sure to use the tension spring QY9 0039 000 listed as a special tool for the installation procedure Before fixing the screws move the carriage 3 times sideways to stabilize the belt te...

Page 123: ...ter frame The head gap must be adjusted only when the carriage guide frame position on the printer frame is changed The screws fastening the carriage guide frame are painted red so that they are not loosened during servicing If the carriage guide frame position is changed unintentionally follow the procedure in 5 ADJUSTMENTS page 5 8 to adjust the head gap Screw Carriage Guide Frame Screw Figure 5...

Page 124: ...ata related to the printer The data stored in the logic board s EEPROM excepting the total waste ink amount setting 25 50 75 cannot be rewritten into the new EEPROM after the logic board is replaced The data in the EEPROM installed on a replacement logic board is unclear After the logic board EEPROM is replaced clear the EEPROM After clearing the EEPROM calibrate the auto alignment sensor as descr...

Page 125: ...e waste ink absorber is replaced reset the waste ink counter in the Service Mode See Part 3 3 4 Service Mode on page 3 18 When a waste ink full error warning occurs it can be assumed that the printer has printed more sheets than its service life called for However this also depends on how many times the cartridge has been replaced and the usage conditions When a color photo BJ cartridge is used mo...

Page 126: ...crew which secures the carriage guide frame 5 2 When Adjustment is Required If the carriage guide frame fixed to the printer frame is repositioned the head gap must also be adjusted The fixing screws are painted red so that they are not loosened unintentionally 5 2 1 Tools required for adjustment BJ Cartridge Head Gap Platen Screw Carriage Guide Frame Figure 5 6 Head Gap Adjustment Table 5 1 Tools...

Page 127: ...riage Before making the adjustment make sure that the gap gauge is not deformed and there are no foreign particles on it and the platen The platen has a structure which enables it to move up and down vertically while maintaining a fixed distance between the head and paper depending on the paper thickness When the printer is turned on and initialization starts the LF motor rotates in the normal dir...

Page 128: ...s as well then screw B is too loose Fix the carriage guide frame lightly again and repeat the procedure from step 1 5 Lightly fix screw A 6 Lightly push the screw A end of the carriage guide frame once or twice and check that the carriage guide frame moves around screw B as shown by the arrows figure 5 9 If it does not return to the original position screw B is too tight And if the screw B end mov...

Page 129: ...rows shown in Figure 5 9 If it does not return to the original position you have fixed screw A too tight If the screw A end moves as well then screw A is too loose Fix the carriage guide frame lightly again and repeat the procedure from step 1 10 Lightly fix screw B 11 After moving the carriage to position A place the gap gauge at position B 12 Repeat the procedure from 2 to 13 twice 13 Gradually ...

Page 130: ...nter with its outer casing removed and the AC adapter connected beware of electrical shocks and PCB short circuiting 3 Troubleshooting is described in flowchart form The following symbols are used in the flowcharts Start End Procedure Judgement Action Replace Jump Stop 4 If there is a problem with the printing quality or paper feeding first check whether the installation site and paper meet the re...

Page 131: ...ve action is only applicable when the color BJ cartridge has produced the Symptom When using the black BJ cartridge for troubleshooting advance to the next step 8 After finishing troubleshooting be sure to reconnect connectors and tighten any loosened screws When replacing the control board be sure to execute the EEPROM all clear and AA sensor calibration and check the waste ink absorption amount ...

Page 132: ...heck Turn Power ON Soft power ON ROM RAM EEPROM OK Indicator blinks green Yes No Is paper out No Yes Paper jam error Detection of Heads ROM error RAM error EEPROM error A Beeper Sounds 7 times Indicator Blinks 11 times orange Beeper Sounds 7 times Indicator Blinks 12 times orange Beeper Sounds 7 times Indicator Blinks 10 times orange Beeper Sounds twice Indicator Lights orange Paper check Paper en...

Page 133: ...ror Right head recognition error Sub heater error Purge unit initialization OK No Yes Cleaning error B Beeper Sounds 3 times Indicator Lights orange Beeper Sounds 4 times Indicator Lights orange Beeper Sounds 7 times Indicator Blinks 8 times orange Beeper Sounds 7 times Indicator Blinks 3 times orange Beeper Sounds 7 times Indicator Blinks 5 times orange Beeper Sounds 7 times Indicator Blinks twic...

Page 134: ... 5 16 OK No Yes Waste ink full warning Indicator lights green Waste ink full error End B Auto cleaning if needed Waste ink check Beeper Sounds 6 times Indicator Lights orange Beeper Sounds 7 times Indicator Blinks 6 times orange ...

Page 135: ...calibrated Suspected Parts EEPROM Corrective Action Replace the logic board Calibrate the auto alignment sensor When a RAM error or ROM error occurs the exact error may not be displayed correctly When replacing the logic board execute the EEPROM all clear function in Service mode then calibrate the auto alignment sensor In addition check the amount of waste ink absorbed by the waste ink absorber i...

Page 136: ...rmal reading Approximately10 5 Ω J2 1 2 3 4 Repair replace a faulty part s Replace the carriage motor Pin No Pin No While the power is on manually move the carriage and check to see if it is sensed at the home position Does it turn during initialization Is it out of synchronization The home position sensor is faulty The carriage ribbon cable is broken The MPU and printer controller are faulty Chec...

Page 137: ...the logic board Pin No During initialization do the paper feed motor feed roller eject roller etc rotate Any abnormal noises Is the paper feed motor out of synchronization Check to see if the purge sensor cable connectors which are located at both the purge sensor and the logic board are connected properly and check the joint cable conductivity Remove the purge unit from the printer and fully rota...

Page 138: ...place the sheet feeder unit With your eyes check the appearance and movement of the paper feed roller which is the drive transmission section of the paper feed motor and the gear which is located on the drive switching mechanism At the same time check to see if the slide lock lever which locks the drive switching section operates smoothly See Part 4 3 4 2 Paper Feed Motor Drive Switching Section o...

Page 139: ...s No 1 Reset the waste ink amount in the EEPROM END 2 Replace the logic board Replace the waste ink absorber Visual check of the waste ink absorber Waste ink absorbed is 75 or more of the limit Check to see how much ink the waste ink absorber has absorbed Check the rate of ink penetration for the entire waste ink absorber as a guideline to determine the waste ink counter setting value 0 clear 25 5...

Page 140: ...cartridge 9 Head Temperature Error END Yes No Yes No Turn off the power with the POWER button and wait several minutes Remove install the BJ cartridge Power on Error displayed Check the connector cable Correct Replace the logic board Replace the carriage unit 1 Replace the ink cartridge 2 Replace the BJ cartridge Faulty BJ cartridge connection Carriage ribbon cable Since the head temperature may b...

Page 141: ...s follow the flow below for each BJ cartridge END Yes No Yes No Remove install the BJ cartridge Check the BJ cartridge conductivity Error displayed Correct Replace the BJ cartridge 1 Replace the logic board 2 Replace the carriage unit Clean the contacts Pin 1 2 14 GND terminals Pin 7 Sub heater drive signal terminal 14 7 2 1 If the BJ cartridge or carriage contact side is soiled with ink mist and ...

Page 142: ...s BJ cartridge logic board carriage unit Corrective Action When you use two BJ cartridges on both the right and left sides follow the flow below for each BJ cartridge END Yes No 2 Replace the logic board 3 Replace the carriage unit 1 Replace the BJ cartridge Remove install the BJ cartridge Error displayed 11 Cartridge Displaced Error ...

Page 143: ...ge Replace the sheet feeder unit Check Replace the paper feeder motor drive switching section During initialization do the paper feed motor pick up roller feed roller eject roller etc rotate Any abnormal noises Is the paper feed motor out of synchronization Is the paper fed properly from the sheet feeder when the pick up roller rotates Remove the sheet feeder unit and operate it with your hands to...

Page 144: ...no paper Yes No Replace the paper end sensor flag or repair replace a faulty part s Correct Check the paper sensor Yes No Replace the logic board Correct END Previous Page Pin No Pin No Pick Up Roller Sensor Flag Paper Pick Up Roller Paper End Sensor Sensor Flag Pick Up Roller Sensor PS2 NO 3 NO 4 PS1 NO 3 NO 4 Check for pick up roller sensor flag deformation or damage Remove the logic board then ...

Page 145: ...Error 14 Left Head Recognition Error No END Left BJ cartridge Right BJ cartridge BC 23 BC 20 reference BC 21e BC 21e BC 21e BC 23 BC 20 BC 21e BC 23 BC 20 BC 21e BC 23 BC 20 BC 22e Photo None None None Yes No Yes Yes No Remove the BJ cartridge Replace the BJ cartridge Re install the BJ cartridge Clean the contact section Correct Correct 1 Replace the carriage unit 2 Replace the logic board Check h...

Page 146: ...apter and or logic board is are faulty Corrective Action Part 5 Maintenance BJC 5000 Yes No Check the DC plug and output voltage START Replace the AC adapter Replace the logic board Does the DC plug output the proper voltage GND DC 5V Vcc GND GND GND DC 24V VM DC 24V VH VHPWR 1 The Power Does Not Turn On ...

Page 147: ... Photo BJ Cartridge BC 22e Photo Measuring points Normal reading Pin No 11 14 12 14 13 14 1 9 Approximately 0Ω Approximately 60 to 750Ω Black BJ Cartridge BC 20 reference Measuring points Normal reading Pin No 11 14 12 14 13 14 1 9 Approximately 0Ω Approximately 60 to 750 Ω Black BJ Cartridge BC 23 Measuring points Normal reading Pin No 11 14 12 14 13 14 1 9 Approximately 0Ω Approximately 60 to 75...

Page 148: ...efective Yes No END 2 Replace the BJ cartridge 1 Replace the logic board 2 Replace the carriage unit 3 Replace the purge unit 1 Replace the ink cartridge Is the printing result still defective even after cartridge replacement Left BJ cartridge Right BJ cartridge BC 23 BC 20 reference BC 21e BC 21e BC 21e BC 23 BC 20 BC 21e BC 23 BC 20 BC 21e BC 23 BC 20 BC 22e Photo None None None While the printe...

Page 149: ... it is known perform error recovery White stripe sample Yes No Check the environment and paper specifications Yes No END 1 Replace the ink cartridge 2 Replace the BJ cartridge Do they meet the required specifications Use paper which meets the specifications Remove and re install the BJ cartridge Execute a test print Is the printing result defective Yes No END Check the carriage cable conductivity ...

Page 150: ...ead has not been aligned properly Insufficient cleaning Ink run out Faulty BJ cartridge Check the printing mode The BJ cartridge is faulty The head has not been aligned properly Corrective action Use a piece of soft cloth lightly damped with water to clean the platen Clean the head nozzles and their surroundings several times If the problem persists replace the BJ cartridge Replace the purge unit ...

Page 151: ...Faulty Interface Yes No Replace the logic board Execute a test print Is the test pattern printed normally Yes No 2 Replace the logic board Reset the printer 1 Replace the interface cable Check the printer settings Correct While the printer is on hold down the POWER button for one beep Then release the POWER button to print the test pattern driver driver The interface connector is faulty The MPU an...

Page 152: ...ND for the head logic drive voltage HVdd 15 HENB0 OUT Heat enable Y 16 EVENB OUT Even nozzle heat enable 17 HENB1 OUT Heat enable M 18 HENB3 OUT Heat enable Black 19 ODENB OUT Odd nozzle heat enable 20 BENB0 OUT Signal for generating the block enable decoder output signal 21 BENB1 OUT Signal for generating the block enable decoder output signal 22 BENB2 OUT Signal for generating the block enable d...

Page 153: ...utput signal 21 BENB1 OUT Signal for generating the block enable decoder output signal 22 BENB2 OUT Signal for generating the block enable decoder output signal 23 VCC OUT IC drive voltage 5V 24 DCLK OUT Print data transfer signal 25 DTLD OUT Timing signal for print data to be latched 26 DTRST OUT Latch reset signal 27 HENB2 OUT Heat enable C 28 IDATA OUT Printing data 29 DIK IN Head temperature s...

Page 154: ...5 Interface connector Pin No Signal name IN OUT Description 1 STB IN See Part 2 for details 2 DATA1 IN 3 DATA2 IN 4 DATA3 IN 5 DATA4 IN 6 DATA5 IN 7 DATA6 IN 8 DATA7 IN 9 DATA8 IN 10 ACK OUT 11 BUSY OUT 12 PE OUT 13 SLCT OUT 14 AFXT IN 15 N C 16 S GND 17 F GND 18 5 V 19 STB GND 20 D1 GND 21 D2 GND 22 D3 GND 23 D4 GND 24 D5 GND 25 D6 GND 26 D7 GND 27 D8 GND 28 ACK GND 29 BUSY GND 30 INT GND 31 INT ...

Page 155: ...3 104 105 156 157 208 U11 J3 1 4 U9 F2 ZD2 ZD1 QH1 9002 01 QG8 8002 U5 C76 F1 PS1 PS2 D12 D10 D11 D9 D8 D7 2 31 J6 32 Q22 E B C77 J7 2 J1 31 32 1 E B Q23 J2 4 1 3 1 D18 D17 D16 D15 D14 D13 S2 RESET BZ1 DAY SCE 4 T U2 PS3 C62 D3 D4 D5 D6 J5 X1 1 S1 POWER C71 J4 1 8 1 19 18 36 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 INDX R 1 FNCK ...

Page 156: ... 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 98 A M FB7 FB8 FB9 FB10 FB11 FB12 FB13 FB14 FB58 FB59 FB60 FB23 FB24 FB25 FB26 FB28 TP15 TP14 TP13 TP16 TP17 C17 FB22 FB21 FB20 FB19 FB18 FB17 FB16 FB57 FB4 FB31 FB30 FB29 FB27 C47 FB15 R45 C64 C22 R51 C66 C65 R50 C12 R54 R4 R47 R44 C63 C48 ZD3 ZD12 GND VCC GND VM GND R72 C13 R64 R67 R25 C69 FB32 FB50 FB49 FB48 FB46 FB47 FB45 FB44 FB33 FB37 FB36 FB38 FB39 FB42 ...

Page 157: ...32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 LOGIC BOARD 01 FAULT VCC C56 15PF C55 15PF C61 0 022m F 0 022m F C78 C4 0 1m F C40 1000PF VCC VCC VCC VCC A14 A15 A16 A17 A18 A19 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 BYTE VPP CE ROMCS R1 4 7K 1 16W BK1608HS330 BK1608LM152 BK1608LM152 BK1608LM152 BK1608LM152 OE RD RD TP11 VH TP34 VM TP35...

Page 158: ...01 E3 01 F4 02 E3 01 F3 01 E3 01 E3 01 E1 01 F5 01 F7 01 F7 01 C3 02 D4 01 C3 02 D8 01 C3 02 D7 01 D3 01 C3 02 C7 01 C3 02 C7 01 C3 02 C7 01 C3 02 C7 01 F4 02 B8 01 C3 02 D7 01 C3 02 D4 01 C3 02 D4 01 C3 02 D7 01 C3 02 C4 01 C3 02 C4 01 C3 02 C4 01 C3 02 C4 01 F4 02 B4 01 F3 01 C3 02 D4 01 E3 01 E3 01 E3 01 E3 01 E3 01 D3 01 D3 01 F4 02 E6 01 D3 01 C3 01 D3 01 D3 01 D3 01 D3 01 F8 01 F8 01 F8 01 F...

Page 159: ... 1 16W 1 R93 1K 1 16W 1 C13 0 1m F 50V C62 VCC VM R4 2K 1 16W 1 R54 1 8K 1 16W 1 C66 6 12 14 9 8 10 17 20 16 13 24 LFA 8 7 6 5 4 3 2 1 LFA LFB LFB 1 21 2 5 22 23 4 3 19 18 15 11 7 470pF R51 56K 1 16W L6219 J4 CON8 FCN 684J036 L U C84 R72 1K 1 16W ZD2 RD36EB ZD1 RD36EB VH C71 100m F 35V C48 ZD3 RD6 2SB2 VCC OPTIONAL DO NOT INSTALL 1000PF VM 1000PF 1K 1 16W R45 1K 1 16W R44 C64 820PF R47 10HM 1 4W R...

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Page 161: ...The printing paper contains 70 waste paper PRINTED IN JAPAN IMPRIME AU JAPON CANON INC ...

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