i550 / i850 / i950 Service Manual Revision 0 QY8-1385-000 COPYRIGHT © 2002 CANON INC.
6FRSH This manual has been issued by Canon Inc. to provide the service technicians of this product with the information necessary for qualified persons to learn technical theory, maintenance, and repair of products. This manual covers information applicable in all localities where this product is sold. For this reason, this manual may contain information that is not applicable to your locality.
I. Manual Outline This manual is divided into the following three parts to provide information necessary to service the i550, i850, and i950. Part 1: Maintenance This part describes information necessary for troubleshooting the i550, i850, and i950. Part 2: Technical Reference This part provides description of new technologies, etc., used in the i550, i850, and i950. Part 3: Appendix This part contains block diagrams, pin layouts, and product specification lists.
II. Table of Contents Page Part 1: Maintenance 1-1 1-2 1-5 1-5 1-5 1-5 1-5 1-5 1-6 1-6 1-7 1-7 1-7 1-8 1-9 1-9 1-9 1 - 11 1 - 14 1 - 15 1 - 15 1. Periodic Replacement/Periodic Inspection/Life 2. Troubleshooting List by Error/Symptom 3. Repair Details 3.1 Precautions 3.1.1 Precautions regarding ink stains 3.1.2 Precautions when releasing the carriage lock 3.1.3 Precautions when removing/installing tap screws 3.1.4 Code strip handling precautions 3.1.5 Do not loosen or remove red screws 3.1.
3DUW Maintenance
1. Periodic Replacement/Periodic Inspection/Life Level User Service personnel Periodic replacement None None Level User Service personnel Periodic inspection None None (1) Paper feed count: - Main body 30,000 sheets (monochrome, 1,500 character standard text pattern printing) 10,000 sheets (printing each color at 7.5% duty) 10,000 sheets (Pattern printing each color at 7.
Orange Flash (Error Code) 2 (1000) 3 (1300) 4 (1601,1611, 1612,1613 1634*1,1635*1) 6 (1401) 7 (1403,1405 1485*1) 8 (1700) *1: i950 only Install head or replace head/logic board/carriage Replace head/carriage/logic board Replace waste ink absorber No cartridge error Waste ink full warning Cartridge error 1-2 Remove paper and press the Resume key Replace and set ink tank(s) Paper jam error No ink error Set paper and press the Resume key Action No paper error Error description Error codes are
Replace logic board Replace head/logic board RAM error *2 Other hardware error *2 Replace logic board Replace logic board ROM error *2 RAM error Replace logic board EEPROM error *1: i550/i850 only *2: i950 only LED ON*1 (6800) Replace head/logic board Replace waste ink absorber/logic board Waste ink full error Head overheating error Replace logic board Internal temperature error *1 8 (5200) 9 (6800) 10 (6100) 11 (6300) 13 Replace purge unit/logic board Recovery system error 4 (5C00) 6 (54
*1: i950 only Does not print at all/no color Print result error Spur tracks appear Missing lines Bad coloring Printing overlapped Black ink not ejected Figures/characters stretched Scratches or white streaks appear even after cleaning Lines not in data printed Paper is soiled Multiple sheets are fed together Paper does not feed Paper skews Symptom Does not power on Power goes off immediately after power on Head not recognized Does not return to home position Abnormal noise Printing stops before comple
3. Repair Details 3.1 Precautions 3.1.1 Precautions regarding ink stains Be careful not to touch the ink path and stain the printer, work bench, hand, or clothes with ink during repair. 3.1.2 Precautions when releasing the carriage lock The carriage locks at the capping position when the power is turned off normally, with the cartridge installed in the carriage. If the printer does not operate normally, manually release the carriage lock as necessary.
3.1.5 Do not loosen or remove red screws Do not loosen or remove the red screws below because they cannot be adjusted in the field. (a) Head gap adjustment red screw x 2 (one on each side) (b) Paper feed motor anchor screw x 2 D E D Figure 1-3 Do Not Loosen or Remove Red Screws 3.1.6 Logic board removal precautions The Logic Board can be damaged due to short circuiting during removal.
3.2 Adjustments 3.2.1 Waste ink counter setting (1) When replacing the logic board, replace the waste ink absorber, depending on the value of the waste ink counter. Use the following table as a guide to replacement. 7DEOH :DVWH ,QN $EVRUEHU 5HSODFHPHQW 7LPLQJ DQG :DVWH ,QN &RXQWHU 6HWWLQJ Waste ink counter setting i550 / i850 / i950 0-7 Clear waste ink counter 7 - 100 Clear waste ink counter and replace waste ink absorber Print the EEPROM information in service mode to check the waste ink count.
3.2.3 Applying grease (oil) After disassembly/assembly, apply special tool grease at the locations shown below. Apply a thin layer of grease using a flat brush. Do not apply (100mm max) 3 1 2 Figure 1-4 Applying Grease i550 / i850 Location 1. Carriage shaft circumference 2. CR slider, selector lever sliding surface Grease/Oil name Floil KG107A Floil KG107A Amount 200 - 400mg 27.5±7.5 mg i950 Location 1. Carriage shaft circumference 2. CR slider, selector lever sliding surface 3.
3.3 Settings 3.3.1 Standalone printer operation This printer has an offline mode which allows the printer operation without connection to a computer. With the printer powered ON, press and hold the Resume button until the green indicator flashes the specified number of times to start each operation, and then release the Resume button to execute the function.
Count 0 LED Green Function Power off 1 2 Orange Green 3 Orange Service test print EEPROM information print EEPROM initialization 4 Green 5 Orange 6 Green 7 Orange 8 9 10 11 12 13 Green Orange Green Orange Green Orange Waste ink counter setting Destination setting Default registration adjustment pattern Default registration adjustment setting Roller cleaning LF check pattern Return to selection menu (Press the Power button to cancel during printing) Remark When there i
3.3.
(1) i850 Test print sample Figure 1-6 Service Test Print Sample (i850) 1 - 12
(1) i950 Test print sample Figure 1-7 Service Test Print Sample (i950) 1 - 13
3.3.4 Printing EEPROM information EEPROM print prints the content of the printer internal EEPROM and the EEPROM in the print head. The resulting output can be used to check the printer settings and data. [Print Example] i550 V0.01 D=000.0 Page=00000 CH=00000 Bk(00) Cl(+2) Head TempBK=18.5 Head TempC=17.5 Env Temp=30.
3.4 Verification (1) Print the nozzle check pattern when replacing the print head, sheet feeder unit, purge unit, or carriage unit. (2) Check the connection with PC and print the nozzle check pattern when replacing the PCB. 4. Printer Transportation Method This section describes the procedures for transporting the printer (for example, when returning after repair). (1) Keep the print head in the carriage. (2) Turn off the power and ensure that it is properly capped at home position.
3DUW Technical Reference
1.
2. Cleaning Mode and Suction Amount Print head cleaning is performed effectively and efficiently depending on conditions in order to prevent print errors caused by bubble, dust, or ink clogging.
3.
Table 2-4 Print Mode List (i850) Paper type Passes Pig/YMC Resolution Print quality High Passes resolution Pig/YMC paper Resolution HR-101S Print quality Photo paper Passes pro Pig/YMC PR-101 Resolution Print quality Glossy photo Passes paper Pig/YMC GP-301 Resolution Print quality Ink jet Passes Post card Pig/YMC Resolution Plain paper Post card Glossy film HG-201 T shirt transfer paper TR-201 OHP film CF-102 Print quality Passes Pig/YMC Resolution Print quality Passes Pig/YMC Resolution Print quality
Table 2-5 Print Mode List (i950) Paper type Passes Number of colors Resolution Print quality High resolution Passes paper Pig/YMC HR-101S Resolution Print quality Photo paper pro Passes PR-101 Pig/YMC Resolution Print quality Glossy photo Passes paper Pig/YMC GP-301 Resolution Print quality Ink jet Passes Post card Pig/YMC Resolution Print quality Glossy film Passes HG-201 Pig/YMC Resolution Print quality T shirt transfer Passes paper Pig/YMC TR-201 Resolution Print quality OHP film Passes CF-102 Pig/YMC Re
Model Cause Head friction diagonally The final sheet of PR-101 paper moves Ink mist All models All models All models Action (2) Head friction is caused by paper curl. printing support. 2-6 (1) Paper float cannot be suppressed due to borderless only one paper.
3DUW Appendix
1.
i950 Block Diagram USB 2.0 Chip USB 2.
2. Connector Locations and Pin Layout 2.1 i550 Connector Location and Pin Layout 2.1.1 Logic board CN301 CN504 CN507 CN202 CN502 CN408 CN503 CN201 CN501 CN302 Figure 3-1 Logic Board CN201 (Carriage ribbon cable connector) Pin No. 1 2 3 4 5-6 7 8 9 - 12 13 - 16 17 - 21 22 - 25 Signal Name DIODE_GND DIA1 DIK0 THERMO HVDD HVSS HVH HVH HVH H_GND H_GND Function BK/COL diode sensor cathode COL diode sensor anode BK diode sensor anode Thermistor signal 3.
CN301 (USB interface connector) Pin No. 1 2 3 4 Signal Name USB_VBI USB_DN USB_DP GND Function Cable power supply Differential data signal Differential data signal GND CN302 (Parallel interface connector) Pin No. 1 2-9 10 11 12 13 14 15 16, 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Compatible mode STROBE DATA1 - 8 ACKNLG BUSY P.E. SELECT AUTO FEED XT N.C GND +5.
CN502 (Purge motor connector) Pin No. 1 2 3 4 Signal Name PGA PGB PGAN PGBN Function PG motor phase A PG motor phase B PG motor phase A PG motor phase B CN503 (ASF motor connector) Pin No. 1 2 3 4 Signal Name ASFA ASFB ASFAN ASFBN Function ASF motor phase A ASF motor phase B ASF motor phase A ASF motor phase B CN504 (Carriage motor connector) Pin No. 1 2 Signal Name CRA CRB Function CR motor phase A CR motor phase B CN505 (Paper feed motor/LF encoder connector) Pin No.
2.1.2 Carriage board CN02 CN01 33 40 8 1 Figure 3-2 Carriage Board CN01 (Carriage ribbon cable connector) See Page 3-3 (CN201 Carriage ribbon cable connector) CN02 (Carriage ribbon cable connector) See Page 3-3 (CN202 Carriage ribbon cable connector) CN03 (Print head contact) Pin No.
2.1.3 Print head 40 33 8 1 Figure 3-3 Print Head Pin No. 1 ,2 3 4 5, 14, 22 6, 7, 8 9 10 11 12 13 15 16 17 18 19 20 21 23 24 25 26 27, 35 28 29 30 31 32, 40 33, 34 36 37 38 39 Signal Name A_GND H_D2 H_D6 Function GND (black heater drive voltage) Cyan even column nozzle data signal Yellow even column nozzle data signal B_GND DIK0 SUBH0 H_D4 H_ENB1 N.C H_D5 DIK1 H_D0 H_ENB0 N.
2.2 i850 Connector Location and Pin Layout 2.2.1 Logic board CN508 CN503 CN501 CN506 CN505 CN421 0 % 0 % 0 % CN304 Figure 3-4 Logic Board CN201 (Carriage ribbon cable connector) Pin No. 1 - 10 11 - 13 14, 19, 20 15 16 17 18 Signal Name VH HVDD GND H_ENB3 H_ENB0 H_ENB1 H_ENB2 Function 24V head power supply 3.3V head power supply Logic GND Heat enable 3 Heat enable 0 Heat enable 1 Heat enable 2 CN202 (Carriage ribbon cable connector) Pin No.
CN402 (Ink sensor connector) Pin No. 1 2 3 Signal Name POW GND INKS Function Remaining ink sensor side power supply GND Remaining ink sensor output CN421 (ASF sensor connector) Pin No. 1 2 3 Signal Name POW GND SNS_ASF Function ASF sensor illuminating side power GND ASF sensor output CN501 (DC power supply connector) Pin No. 1 2, 4, 6 3 5 7 Signal Name +5V GND VH VMREM LOW_PW_CONT Function GND Power consumption control CN502 (Paper feed motor/LF encoder connector) Pin No.
CN508 (Purge sensor connector) Pin No. 1 2 3 Signal Name POW GND SNS_PG Function PG sensor illuminating side power supply GND PG sensor output 2.2.
2.2.3 Print head 44 36 8 1 Figure 3-6 Print Head Pin No.
JUSB1 JCR1 JASFS1 JCR2 JPOW1 JPGM1 JASFM1 JCR3 2.3 i950 Connector Location and Pin Layout 2.3.1 Logic board JPGS1 JCRM JUSB2 JINK1 Figure 3-7 Logic Board JCR1 (Carriage ribbon cable connector) Pin No.
JCR3 (Carriage ribbon cable connector) Pin No. 1-8 9 10 11 12 13 14 - 20 Signal Name VH HEYX HELMX HEMX DATAM TSOLMN GND Function Y heat enable LM heat enable M heat enable M data LM, M status output GND JPOW1 (DC power supply connector) Pin No. 1, 2 3 4, 5 6 7 8 9 Signal Name VH VM GND 5V GND VHREM VMREM Function GND VH output enable VM output enable JPGS1 (Purge sensor connector) Pin No.
JLFENC1 (Paper feed motor/LF encoder connector) Pin No. 1 2 3 4 5 6 Signal Name LFA LFB GND LF_ENCA EVDD LF_ENCB Function LF motor phase A LF motor phase B GND Encoder signal phase A Sensor power supply Encoder signal phase B JUSB2 (USB interface connector) Pin No. 1 2 3 4 Signal Name USB_VBI USB_DM USB_DP GND Function Cable power supply Differential data signal Differential data signal GND JCRM1 (Carriage motor connector) Pin No.
2.3.3 Print head 41 50 1 10 Figure 3-9 Print Head Pin No. 1, 2, 8 - 13 19, 20 3 4 5 6 7 14 15 16 17 18 21 22 23 24 25, 36 26 27 28 29 30 31 - 33, 39 - 42 48 - 50 34 35 37 38 43 44 45 46 47 Signal Name GNDH GNDH DATAC DATALC DATALK DATAY DATALM TSOCLC BG HDSEN HCLK DATAM HELKX HELCX HECX 3.3V GND VSS- A VDD- A HEMX HELMX HEYX VH VH 3.
2.4 i550 / i850 Printer Specifications Type Desktop serial color bubble jet printer Paper feeding method Auto sheet feed (no manual sheet feed) Resolution (Max.) i550: 2400dpi x 1200dpi / i850: 4,800 dpi x 1,200 dpi i550 HS mode HQ mode i850 HS mode HQ mode Throughput Black: 18 ppm 13 ppm 22 ppm 13 ppm Color: 11 ppm 7 ppm 14 ppm 10 ppm i550/ i850 Printing direction (Plain paper / Specialty bi-directional paper) Max.
i950 Printer Specifications Type Paper feeding method Resolution Throughput speed (Target value) Printing direction Print width Interface ASF stacking capacity Detection functions Head alignment Acoustic noise level Environmental requirements Power supply External dimensions Weight Related standards Desktop-type serial printer Auto sheet feed 4,800 x 1,200 dpi (max.
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