4-52 Phaser 8400/8500/8550/8560 Color Printer Service Manual
General Troubleshooting
Mechanical Initialization 8400 (1/2)
Start the Thermals
13,xxx
Unbind Media
Path Motor and
Home the MPT
31,000
Home the Y-Axis
5001, 5004
Wait for the Head
to read
OK_TO_WIPE
Temperatures
13.xxx
Home XA
6000
Move XA to
HEAD TILT
POSITION
6000
Start Mechanical
Recovery
Set FIRMWARE states:
CapState = UNKNOWN
Head Tilt State = UNKNOWN
DmfixState = UNKNOWN
YaState = HOMELESS
Xa State = HOMELESS
Is the head tilt
Cam engaged
(head tilted?)
Home the CAP/wiper
without disengaging the
Head Tilt Cam
8005, 8007, 8008, 8009
YES
NO
Values in the NVRAM are used to
determine if printhead and wiper have
contact or if the head was parked on
last power down. If printhead and wiper
are in contact, the printhead warms
first before moving. If the printhead
was parked, the printhead is warm
before moving to the print position.
The dashed line traces what happens
if the printhead was parked on last
power down.
The RED numbers indicate errors that
may be displayed at that point in the
mech init process.
Mechanical Recovery
POWER ON
s8500-029
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