APPENDIX B : COMPRESSOR DRIVEN AIRDRYER
20950 Issue 1 April 98 B--15
Air Flow Check
CAUTION It is essential that the air flow AND humidity are
both checked every 2000 hours to ensure reliable
printer operation.
Notes (1) Thepartnumberfortheairdryertestkitusedinthischeckis30455.
(2) Any instability in the ink jet apparently due to this air flow will
almostcertainly result from another cause and should be properly
investigated. However, if the air flow rate from the dryer does
interfere with the ink jet, reduce the air flow (screw in the needle)
until the interference ceases.
(1) Remove the print head from its holster.
(2) Check the air flowmeter chart (part of the airdryer kit) and
determine the meter graduations correspondingto air flows of2.0
and 2.2 litres/minute.
(3) Connect the air flowmeter to the 1/4” silicone air tube in the print
head. Support the flow meter in a vertical position.
(4) Turn on the airdryer.
(5) Check that the air flow indicated by the meter is between 2.0 and
2.2litres/minute. Ifnecessary,carefullyadjusttherestrictorneedle
to set the air flow to within these limits. Remove the meter.
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