Troubleshooting Flowchart - Canon Bubble Jet Printer i450 Simplified Manual

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6. TROUBLESHOOTING FLOWCHART

6.1. Printer Main Unit Troubleshooting Flowchart (how to printer operation confirmation
when refurbishing)
Power ON
Error displayed?
Yes
Open access cover,
Error displayed?
Yes
Connect to computer
Service test pattern
Correct?
Yes
Waste ink counter
Yes
Normal
< Note for normal printer refurbishment >
At the final step of refurbishment, be sure to reset the EEPROM in accordance with 4.
SERVICE MODE, the EEPROM reset procedure. Remove the print head, unplug the power
cord immediately, and do not print afterwards.
No
No
*Refer to 4. SERVICE MODE
No
Replace head and print
Correct?
Yes
No
11
< Service test pattern check items of >
(Refer to the attached print sample.)
1. Ink non-ejection: Yes
2. Top margin:
3. Line:
4. Gray area:
No
Defective
Outside of paper
Not connected
White lines / uneven density
NG
NG
NG
NG

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