Tektronix PHASER 380, Service Manual

Page: 139 / 346

Service Manual 5-37
Theory of Operation
5
4. The printer prompts the customer to remove the cleaning tray and
returns to the cleaning menu.
The procedure is the same for the lower paper tray assembly except you select
the lower tray for cleaning.
Transfix roller oiling
Transfix roller oiling conditions the roller and prevents ink from transferring to
the roller during duplex printing.
The printer performs a transfix roller oiling cycle after every 14th print. During
this cycle, oil is applied to the drum as it would be during a print cycle. Then the
transfix roller is lowered against the drum and the drum rotates; this transfers
the oil to the transfix roller, then the transfix roller is raised to its standby
position.
Drum cleaning (chase page)
The printer performs a drum cleaning with a chase page automatically anytime
a paper jam occurs after an image has been “printed” on the drum. The chase
page transfers the image, which may not be complete, off the drum and is
usually discarded. The printer then attempts to reprint the print that jammed.
The chase page is processed the same as a regular print except the drum is not
oiled and no image is printed on the drum (since an image is already printed on
the drum).