Avery Dennison 676 - Manual (Page 47)

Users Manual Model 676 Maintenance • •• • 47
Clean Platen Roller
You may determine if the printhead has been adjusted properly by performing a test
pattern as documented elsewhere in this manual. A properly adjusted print head will
produce an even grid of chevrons when the test pattern is performed. Before making
any judgments as to the quality of the printhead, it is absolutely necessary to
ensure that the platen roller and the printhead is clean of all debris. Clean the
platen roller located immediately beneath the print head with a clean cloth and a
small amount of alcohol. Be careful not to damage the platen roller while cleaning.
If the roller is worn, replace the roller.
Cleaning Print Sensor
When print registration, in reference to sense mark, becomes inconsistent or erratic
the Sensor and Light Bar may need to be cleaned.
Supplies:
- Always use clean supplies when cleaning the sensor and light bar.
- Never use anything abrasive to the sensor and light bar.
- NEVER use an alcohol based solution when cleaning the sensor or light bar.
- Dry air or a foam swab are the AVERY DENNISON recommended items to use
when cleaning the sensor and light bar.
Print Head Handling
Warning
Print heads can be damaged easily, and are subject to premature failure if not cleaned
on a regular basis. Please follow the procedures carefully to help ensure print head
life and print quality.
Thermal print heads are very sensitive and must be handled with care to help ensure
longer print head life. Because print heads may be damaged through a number of
ways, AVERY DENNISON has developed the following procedures;
Handling
Static discharge is very detrimental to thermal print heads. To avoid contacting print
heads with a static charge, follow these simple procedures:
- All print heads should be kept in original anti-static bags until they are
placed in the machine.
- The 676 printer is supplied with an anti-static wrist strap. Locate the strap
- it must be worn at all times when handling the print heads.
- Do not touch any terminals extending from the print head or the print line.
- Anti-static gloves are provided with your machine upon installation and
extras may be ordered from AVERY DENNISON. These gloves must
be worn at all times when handling the print head. If an anti-static glove
is not available, make absolutely certain to thoroughly wash and dry your