Stratasys uPrint, Service Manual, Page: 300 / 383

uPrint/uPrint SE Service Manual 6-33
What happens during Power Up / Boot
55.
Power Switch turned to ON
Chamber lights (dim mode), display backlight
and fans turn on. Material bay drive homes.
Performs Power On Self Test
(POST). POST looks at voltages,
checksums and memory, etc.
Performs basic hardware setup
such as checks for number of
material bays and loads gantry
parameters, etc.
Once printer software is loaded
to RAM the controller runs the
POST test again.
Controller receives updated
parameters from SBC.
Power enabled to the XYZ
motors, via the XP command.
• Chamber lights on (full power)
• Load globals
• Door locks
• Performs “Calibrate” (home)
sequence:
1. Moves Z stage down to Z EOT
sensor
2. Moves head to X home (BOT) sen-
sor
3. Moves head to Y home (BOT) sen-
sor
4. Moves head to Y EOT sensor
5. Unlocks door
• Reads Carriers
Head and chamber heaters
begin to heat up, via the th, tr
and tx commands
BIOS starts and loads the OS
(operating system) from the
hard drive to the SBC RAM.
OS boots - performs check
disk (chkdsk) and loads Linux
OS from hard drive to RAM.
Loads printer software
from hard drive to RAM.
SBC send second reset (in)
command to controller.
Loads parameters to
controller (Coldfire chip)
(e.g. extrusion
parameters).
SBC enables power to XYZ
motors
“Calibrate” (home) by
issuing move commands
to the controller
Commands head and chamber
to heat to “Idle” temperature
(sets temperatures)
After chkdsk is complete,
“Copyright” screen will
be displayed.
“Starting Up”
“Initializing” is
displayed.
“Starting Up”
“Calibrating”
is displayed
“Idle” is
displayed
Controller
SBC
See M - 3
See M - 5