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Canon PIXUS 50i Service Manual

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PIXUS 50i
i70
SERVICE MANUAL
Revision 0
QY8-1388-000
COPYRIGHT© 200 3 CANON INC. CANON PIXUS 50i / i70 102001 XX 0.00 -0 PRINTED IN JAPAN (IMPRIME AU JAPON)

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  Summary of Contents for Canon PIXUS 50i

  • Page 1 PIXUS 50i SERVICE MANUAL Revision 0 QY8-1388-000 COPYRIGHT© 200 3 CANON INC. CANON PIXUS 50i / i70 102001 XX 0.00 -0 PRINTED IN JAPAN (IMPRIME AU JAPON)
  • Page 2 Scope 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. The manual covers information applicable in all regions where the product is sold. For this reason, it may contain information that is not applicable to your region.
  • Page 3 I. MANUAL OUTLINE This manual consists of the following three parts to provide information necessary to service the i70: Part 1: Maintenance Information on maintenance and troubleshooting of the i70 Part 2: Technical Reference New technology and technical information such as FAQ’s (Frequently Asked Questions) of the i70 Part 3: Appendix Block diagrams and pin layouts of the i70 Reference:...
  • Page 4: Table Of Contents

    II. TABLE OF CONTENTS Part 1: MAINTENANCE Page MAINTENANCE 1.1 Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer 1.2 Customer Maintenance 1.3 Product Life 1.4 Special Tools 1.5 Serial Number Location 2. LIST OF ERROR DISPLAY / INDICATION 2.1 Operator Call Errors (by LED Blinking in Orange) 2.2 Service Call Errors (by LED Blinking in Orange and Green Alternately, or Lit in Orange)
  • Page 5: Part 1 Maintenance

    Part 1 MAINTENANCE...
  • Page 6: Adjustment, Periodic Maintenance, Periodic Replacement Parts, And Replacement Consumables By Service Engineer

    1. MAINTENANCE 1.1 Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement Consumables by Service Engineer (1) Adjustment Approx. Adjustment Timing Purpose Tool time EEPROM At logic board ass’y To initialize settings other None. 1 min. initialization replacement than the following: - USB serial number - Destination setting - On -arrival cleaning flag...
  • Page 7: Customer Maintenance

    Customer Maintenance Approx. Adjustment Timing Purpose Tool time Print head alignment At print head To ensure accurate dot Computer 5 min. replacement placement. (settings via the printer driver) Print head cleaning When print quality is To improve nozzle Printer, or 30 sec.
  • Page 8: Serial Number Location

    1.5 Serial Number Location On the back of the printer unit (the base unit) 1 - 3...
  • Page 9: List Of Error Display / Indication

    2. LIST OF ERROR DISPLAY / INDICATION Errors are indicated by the LED, and warnings are displayed on the monitor of the computer connected to the printer. 2.1 Operator Call Errors (by LED Blinking in Orange) blinking in Error Solution Remarks orange 2 times...
  • Page 10: Warnings

    2.3 Warnings (1) Printer (no LED indications) Displayed warning Remarks Low black ink warning 1 (About half of the full amount The status is displayed on the monitor of the remains.) computer connected to the printer Low color ink warning 1 (About half of the full amount remains.) Low black ink warning 2 (Little ink remains.
  • Page 11: Troubleshooting By Symptom

    2.4 Troubleshooting by Symptom Symptom Solution Remarks The power does not turn on. Replace the To check the AC adapter, The power turns off immediately - AC adapter, with the AC adapter alone after power-on. - battery pack, and turned on, connect the - DCDC board ass’y, or tester, and confirm that the - logic board ass’y...
  • Page 12: Repair

    1-13 (4), for details. Main case unit - In assembling, keep the (i70: QM2-0287) print head cover closed, (PIXUS 50i: QM2-0310) to protect the cover sensor from damage. See page 1-14 (5), for details. 1 - 7...
  • Page 13 (Notes on Service Part Replacement - cont’d- ) Service part Notes on replacement Adjustment/settings Operation check Base ass’y - Service test print (QL2-0193) Door sensor board ass’y - Service test print (QM2-0240) after the print head cleaning DCD board ass’y - Direct printing (QM2-0242) from a digital...
  • Page 14: Special Notes On Repair Servicing

    3.2 Special Notes on Repair Servicing (1) Flexible cable and harness wiring, connection Be careful of wiring of the flexible cables and harness, and positioning of the yellow tape (QY9-0060) to fix the harness and the black tape (QY9-0061) to fix the coin battery unit and to protect the harness from damaged.
  • Page 15 <Harness wiring> Complete Harness Wiring DCD harness LF motor cable AP motor harness Coin battery unit CR motor harness USB harness Bottom View Coin Battery Unit Removed Shield plate DC jack harness (under the shield plate) Shield Plate Removed 1 - 10...
  • Page 16 <Yellow tape locations> To secure the panel flexible cable (QK1-0051) To secure the DCDC board harness Print Unit and Drain Pack Ass’y Top View To secure the purge sensor flexible cable (QK1-0053) To secure the flexible cable holder (QC1-1310) To secure the panel flexible cable (QK1-0051) Print Unit and Drain Pack Ass’y Bottom View <Black tape locations>...
  • Page 17 (2) Absolute time setting when the coin battery unit is removed To keep the absolute time, a Real Time Clock (RTC) is built into the coin battery unit (QM2-0292). When the coin battery unit is removed, the RTC is reset. After re-installing the coin battery unit, be sure to set the absolute time to the RTC in the following procedures: How to set the absolute time: To set the absolute time to the RTC, connect the printer to the computer, and perform the print head...
  • Page 18 (4) Pressing plate unit installation When installing the pressing plate unit (QM2-0300), take care that the paper lifting plate is not under the paper return tabs of the print unit. (If placed under the paper return tabs, the paper lifting plate will not move up and down properly.) With regard to the spring, do not extend it more than 5mm.
  • Page 19 (5) Main case unit assembling When assembling the main case unit (QM2-0287/0310), assemble with the print head cover in the closed position. If the print head cover is open, the print head cover switch on the back of the main case unit will contact the cover sensor of the door sensor board ass’y (QM2-0240), and the sensor is likely to be damaged.
  • Page 20: Adjustment / Settings

    Waste ink counter reset See “Service mode operation Both the main and the borderless print procedures” below. waste ink counters are reset at the same time. Destination settings See “Service mode operation Overseas: i70 procedures” below. Japan: PIXUS 50i 1 - 15...
  • Page 21 ROM data downloading mode.) Caution: When the i70 printer driver is installed to the computer, the Add New Hardware Wizard appears, requesting the PIXUS 50i printer driver. Click Cancel at the wizard. Using the USB tool , send the download file to the printer.
  • Page 22 *1: In the flash ROM download mode, the printer ID is automatically set to the PIXUS 50i. *2: The USB tool will be supplied via the QISS software download. 2 types of the tool will be prepared, for Windows 9x/Me, and for Windows 2000/XP.
  • Page 23 Select the USB port. Click Send File to open the file selection dialog box. Select All Files (*.*), and the download file to send to the printer, and send it to the printer. When data sending finishes, exit usbrwt.exe. 1 - 18...
  • Page 24: Verification Items

    3.4 Verification Items (1) Service test print <EEPROM information contents> On the service test print (sample on page 1-20), confirm the EEPROM information as shown below. (The information is given in the upper portion of the printout.) Destination: i70 Dest = 01 Overseas ROM version 50i Dest = 02...
  • Page 25 <Service test print sample> Check 1: Top of form accuracy Check 2: Nozzle check pattern Check 3: Straight lines Check 4: Halftone 1 - 20...
  • Page 26: Printer Transportation Method

    4. PRINTER TRANSPORTATION METHOD This section describes the procedures for transporting the printer (for returning after repair, etc.). Keep the print head and ink tanks installed in the carriage. Turn off the printer, and secure the carriage locks in the home position. (When the printer is turned off, the carriage is automatically locked in place.) Caution: If the print head is removed from the printer and left alone by itself, ink (especially the pigment black ink)
  • Page 27: Part 2: Technical Reference

    Part 2 TECHNICAL REFERENCE...
  • Page 28: New Technologies

    1. NEW TECHNOLOGIES (1) Direct digital camera printing Printing can be performed directly from a digital camera. During the direct digital camera printing, the following functions are not available: - Print head alignment - Remaining ink amount detection *1: If the print head alignment has not been performed via the computer connected to the printer, uni-directional printing is performed, and the print speed is lower than that of bidirectional printing.
  • Page 29: Cleaning Mode And Amount Of Ink Purged

    2. CLEANING MODE AND AMOUNT OF INK PURGED To prevent printing problems due to bubbles, dust, or ink clogging, print head cleaning is performed before the start of printing, except in the following cases: - Cleaning on arrival: Performed when the print head cover is closed. - Cleaning by dot count: Performed after ejection of paper.
  • Page 30: Faq (Specific Problems And Solutions)

    3. FAQ (Specific Problems and Solutions) No. Occurrence Function Symptom Condition Cause Solution Possible call or complaint level* Paper Paper jam - Plain paper (soft paper) When many sheets of Reduce the number of sheets - Paper jam feeding Paper edge creasing - When about 30 sheets are paper are set, paper feed to set on the sheet feeder, to...
  • Page 31: Part 3: Appendix

    Part 3 APPENDIX...
  • Page 32: Block Diagram

    1. BLOCK DIAGRAM J301 J305 PANEL BOARD MOTOR ASS’Y F F C QM2-0239 J302 ASF/PG MOTOR J306 IrDA BOARD ASS’Y F F C J303 MOTOR J304 DOOR SENSOR F F C BOARD ASS’Y LOGIC QM2-0240 BOARD ASS’Y USB BOARD ASS’Y QM2-0237 QM2-0241 J203...
  • Page 33: Connector Location And Pin Layout

    2. CONNECTOR LOCATION AND PIN LAYOUT 2.1 Logic Board Ass’y       J302 J301 J202 J303 J201 J306     J305 J304 J401 J203 J205           J201 (DC-DC board I/F) Signal name Function Input/Output 1 24V VM motor drive power supply 2 GND 3 5V...
  • Page 34 J202 (Print head FPC I/F) Signal name Function Input/Output 1 TBk Black ink tank presence sensor 2 TGND Ink tank sensor GND 3 TCl Color ink tank presence sensor 4 ChA Carriage encoder phase A 5 Vcc_ENCO Carriage encoder drive power supply 6 ChB Carriage encoder phase B 7 TH...
  • Page 35 J203 (USB/DC board I/F) Signal name Function Input/Output 1 GND 2 Vbus Cable power supply 3 D- Data signal line 4 D+ Data signal line J205 (Coin battery unit I/F) Signal name Function Input/Output 1 Vdd Real Time Clock (RTC) drive power supply 2 GND J301 (LF motor I/F) Signal name...
  • Page 36 J305 (Panel board I/F) Signal name Function Input/Output 1 LED_A LED drive power supply 2 LED_RSM Error LED 3 LED_PWR Power LED 4 POWER Power key 5 RESUME Resume key 6 GND 7 PES PE sensor detection signal 8 VSEN_5V PE sensor drive power supply 9 ASFS ASF sensor detection signal...
  • Page 37: Dc-Dc Board Ass'y

    2.2 DC-DC Board Ass’y   CN1 (Carriage FPC I/F) Signal name Function Input/Output 1 A_VH Head drive power supply (24V) 2 A_VH Head drive power supply (24V) 3 A_VH Head drive power supply (24V) 4 A_VH Head drive power supply (24V) 5 A_GNDH 6 A_GNDH 7 A_GNDH...
  • Page 38 CN2 (Logic board I/F) Signal name Function Input/Output 1 POWER_SW Optional battery start-up signal 2 BAT_TXD Serial sending data to the optional battery charger 3 VH_ON Head drive power supply VH output enable 4 POWER_ON DC-DC converter on/off control 5 VIN Power supply voltage 6 GND 7 2.5V...
  • Page 39: Usb Board Ass'y

    2.3 USB Board Ass’y     J1 (Logic board I/F) Signal name Function Input/Output 1 GND Cable GND 2 Vbus Cable power supply 3 D- Data signal line 4 D+ Data signal line J2 (USB I/F: USB connector B) Signal name Function Input/Output 1 Vbus...
  • Page 40: Coin Battery Unit

    2.4 Coin Battery Unit     BAT1               J1 (Logic board I/F) Signal name Function Input/Output 1 Vdd Real Time Clock (RTC) IC drive power supply 2 GND BAT1 (Coin battery I/F: Battery holder) Signal name Function Input/Output...
  • Page 41: Dcd Board Ass'y

    2.6 DCD Board Ass’y             J1 (Main PWB I/F) Signal name Function Input/Output 1 Vbus Cable power supply 2 D- Data signal line 3 D+ Data signal line 4 GND Cable GND J2 (Digital camera I/F: USB connector A) Signal name Function Input/Output...
  • Page 42 / PIXUS 50i Specifications <Printer> Type Serial color bubble jet printer Paper feeding method Auto sheet feed (no manual sheet feed) Resolution 4,800 x 1,200dpi (Max.) HS HQ Throughput (reference) Black 10.9 Color Photo 0.36 Printing direction Bidirectional/uni-directional Print width Max.
  • Page 43 <Battery pack (option)> Type Lithium ion Nominal voltage 10.8 VDC Nominal capacity Printable pages Approx. 450 pages - JEIDA standard pattern J1, plain paper, standard mode - 25C environmental temperature, USB connection, printing immediately after full charge Environmental During operation Temperature 5 to 35C requirements...
  • Page 44 PRINTED IN JAPAN (IMPRIME AU JAPON) CANON INC.

This manual is also suitable for:

Pixus i70