Tektronix Phaser 840, Service Manual

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Phaser 840 and 850 Color Printers
6. Media perfectly straight a. Media path motor stall
b. Bad gear in drive train
c. Duplex sensor not
snapped into front panel
assembly
d. Bad duplex sensor
a. Use diags to run “verify
drive current
requirements” from the
paper path group to
check for stall, or feel for
unevenness in motor
rotation by manually
turning. Replace paper-
path motor if needed.
Check electronics if
needed
b. Replace stripped gears
c. Reassemble front panel
d. Replace front cover
display assembly
7. Media goes back down
simplex path a. Roller slip
b. Media impeded from
exiting by top cover
c. Media impeded from
exiting by a tall stack of
paper
a. Replace exit roller,
insure exit idler rollers
are providing adequate
force
b. Reassemble top cover
c. Remove media from
output tray
22,700.02 Command-stop event while transfixing
1. More than one sheet of
media in the path a. Multiple pick a. Try again
2. Media perfect in media
path (exit door area) a. Check for drum rotation
b. Y-axis encoder
defective, or not seated
properly
c. Drum maintenance
clutch
d. PostScript fault
e. Front panel error
f. Power supply problem
a. Check for Y-axis motion
blockage
b. Reseat or replace
encoder
c. Replace the drum
maintenance clutch
d. Try again, cycle power,
or NVRAM reset
e. Replace front panel
assembly
f. Replace power supply
g.
22,703.05 Y-axis stall
1. More than one sheet of
paper in duplex path a. Multiple pick a. Try again
2. Media all wrinkled up a. Short-grained media a. Run stiffer long-grained
media
22,705.07 Time-out on exit sensor
1. Exit tray nearly full a. Media was pulled from
exit into duplex while
printing, exit flag can't
move properly
a. Empty exit tray
Error code
Additional clues Probable cause Action