Canon 7816A007AA Vereinfachtes Servicehandbuch - Seite 9

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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,

and install head

Error displayed?

Yes

Connect to computer

Shipment inspection

pattern printing

Correct?

Yes

Waste ink counter

less than 7%?

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.

*Refer to 4. SERVICE MODE

regarding printing method.

Replace head and print

shipment inspection pattern

Correct?

Yes

< Shipment inspection pattern check items of >

(Refer to the attached print sample.)

1. Ink non-ejection: Yes

2. Top margin:

3. Line:

4. Gray area:

Defective

Outside of paper

Not connected

White lines / uneven density NG