Canon BJC-620 user manual 0DLQWDLQLQJWKH3ULQWHUprint head unit

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With proper use, the print head unit should last the life of the printer. Eventually, however, as the print head unit wears out, the print quality will deteriorate and you will see irregular or missing dots on printouts. If this occurs and print quality does not improve with repeated print head cleanings, contact the Canon Computer Systems

3ULQW+HDG8QLW*XLGHOLQHVCustomer Care Center to find out your service options (see page 1-3).

The most important thing you can do to extend the life of your BJC-620 and to ensure optimum print quality is to take care of the print head unit. To avoid damaging the print head unit, follow these precautions:

Do not touch the print head nozzles on the print head unit or the sharp edges around them.

Do not place the print head unit on a table with the print head nozzles facing down. Make sure the filters are facing up if you must set the print head unit down.

Install the print head unit immediately after you open it.

Replace an empty ink tank as soon as possible. Do not attempt to print a color

zfor which the ink tank is empty.

Do not use heavier-weight print media than meet the specifications for this printer. (See Appendix A, Specifications, for details.) Printing with a paper that is thick enough to come in contact with the print head nozzles may damage the

￿￿￿￿0DLQWDLQLQJWKH3ULQWHUprint head unit.

Chapter 4