Canon BJ-W7000 Service Manual page 5

14, Procedure after Replacing the
Media Illumination Lamp................ 5-14
GC. Communications ...........cccccccecesssceee 5-15
1. Selecting the Parallel Interface
Communication Mode .................. 5-15
2. Upgrading the Image Controller
Version bes
REMEDYING IMAGE DEFECTS.
A. Initial Inspection
1. Siting Environment
2. Checking the Media ...
B. How to Remedy Image Defects..
1. Non-discharge of Ink.. 5-18
2. Different-color Dot Shi 5-18
3. Jagged Lines ... 5-19
4. Slant Lines 5-19
5. Dots are Small or Density is Low .. 5-20
6. The Ink Discharge Position of a
Specific Nozzle is Out of Position . 5-20
7. Stripes Appear in Y-axis . 5-21
8. Stripes Appear in X-axis . . 5-22
9. Contours of Filled Images ; are Not
Sharp ee tect ecco aeeltadesiees §-22
10. Defective Vertical Scaling/Defective
Dimensional Accuracy .................+ 5-23
11. Smudging at the Boundary
between Filled Images
. REMEDYING DEFECTIVE
OPERATION .......c.esescsecesesesseeseseeeerseneees 5-24
A. How to Read the Troubleshooting
Tables
B. Procedure
1. Power Does Not Turn ON....
Vv.
Vi.
. ERROR CODES ....
2. Media is Not Fed see 5-27
3. Carriage Does Not Move ... . 5-29
4. Purge Unit Does Not Operate....... 5-30
5. Path Change Plate Does Not
Operate wo... ceteeceeeeeseeneeee 5-31
6. No Display on Control Panel......... 5-32
7. Head Error Message Does Not
DISAPPOAM .<ccssciiscetcccasseevessadetlics 5-33
8. Jam Message Does Not
Disappear
. 5-35
5-35
9. Ink not supplied
10. Tank Empty Message Continued ..
LAYOUT AND FUNCTION OF
ELECTRICAL PARTS...
A. Sensors
B. Switches, Motors and Solenoids ......
C. Printed Circuit Boards, Others..........
D. Variable Resistors (VR), LEDs and
Check Pins by PCB uu... .ceecceeeees
1. Engine Controller PGB.....
2. Image Controller PCB...
3. Carriage PCB
E. Short Flexible Cable Terminal
Assignmenis
SERVICE MODE
A. Outline waht
B. Using the Service Mode ..................
1. How to Enter the Service Mode
2. How to Exit the Service Mode
3. Service Mode Menu Items ..
C. Details of Output Setup List
A. Error Code List ..
>
9 9D
m
MOTOR CONTROLLER BOARD
CIRCUIT DIAGRAM............-.eeseseeeeeees A-41
INK DETECTION BOARD CIRCUIT
DIAGRAM |. ccocccots cectecinespciscteisiicesedent A-42
OPERATION PANEL BOARD
CIRCUIT DIAGRAM... cee eseeeeeseeee A-45
VOLUME BOARD CIRCUIT
DIAGRAM
APPENDIX
SIGNAL NAMES/ABBREVIATION G.
MIST oo deseccscccubeeesssatblon acriazdescreneseciss A-1
GENERAL CIRCUIT DIAGRAM ........... A- 4 H.
ENGINE CONTROLLER BOARD
CIRCUIT DIAGRAM I.
IMAGE CONTROLLER B
CIRCUIT DIAGRAM J.
CARRIAGE BOARDCIRCUIT
DIAGRAM ... K.
DC POWER SUPPLY BOARD
CIRCUIT DIAGRAM... ceeecceeeecseceeee A-40
COPYRIGHT © 1998 CANON INC.