Xerox Phaser 840 Service Manual page 264

NON-XEROX/TEKTRONIX INK FAILURE CHECKLIST
PERFORM THIS CHECKLIST ONLY IF NON-XEROX/TEKTRONIX INK IS IN USE
1. Print Test Print 2 (Weak/Missing Jets). CAREFULLY examine it, and proceed with the questions below:
1a. Does Test Print 2 show at least one color with 8 or more weak/missing jets? YES
1b. Print up to 10 solid fills of the suspected color(s). After these solid fills did the printhead develop
at least one color with 8 or more weak/missing jets?
1c. Does the customer symptom involve intermittent failure that cannot be reproduced where virtually
all jets for a color fail?
2. Does the faceplate of the printhead show obvious head-to-drum contact damage? (this is typically seen
as an obvious horizontal scratch running from one end of the printhead faceplate)
3. Does the printhead reservoir of the affected color have ink visible in it?
4. Do ALL 4 COLORS have the same or nearly the same jets missing (not weak) in a band 6 to 8 jets wide?
(this will create a white stripe about ½ inch or 1 cm wide on the page)
5. If the printer is a Phaser 340 or 350, is the 2nd letter of the printhead serial number "A", "B", "C", or "D",
OR is it "E" and the next two digits are in the range 01 - 40?
A
WHAT TO DO WHEN A PRINTHEAD FAILS DUE TO NXTI
Inform the customer that service will only be provided with a credit card (or
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purchase order outside North America, where credit cards are not commonly
available). Xerox Warranty/Service Agreement DOES NOT cover repair cost of
the printhead when it has been damaged by Non-Xerox/Tektronix ink and the
repair cost is the responsibility of the customer.
Replace the printhead per normal procedures.
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Provide the customer with the "Diagnosis Form" and "Onsite Failure Notification"
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letters.
Check "Non-Xerox/Tektronix Ink" Box on Greentag.
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Enclose all sample prints, ink samples, and this checklist with the printhead and
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return it to Wilsonville for evaluation.
Enclose a sample of waste ink with the printhead return if possible.
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Xerox Personnel - please provide full documentation in TekLink.
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248 Phaser 840/850/860/8200 Color Printer - Service Manual
NO
Go to #2 Go to 1b
YES NO
Go to #2 Go to 1c
YES NO
Go to #2 Go to B
YES NO
Go to B Go to #3
YES NO
Go to #4 Go to B
YES NO
Go to B Go to #5
YES NO
Go to B Go to A