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D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-003
PRINTER SYSTEM - COMPONENT LOCATIONS
PRINTER SYSTEM - COMPONENT LOCATIONS
EFFECTIVITY
SHZ ALL 31-33-00
Page 5
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-003
General
The printer interfaces with these line replaceable units (LRUs):
* ACARS management unit (MU) - sends reports to the printer
on an ARINC 429 data bus. The MU sends the reports
automatically or when it gets a command.
* Flight data recorder system - FDAU sends reports to the
printer on an ARINC 429 data bus. The FDAU sends the
reports when it gets a command.
The printer sends status and handshake to the FDAU and the
ACARS MU on ARINC 429 data buses.
PRINTER SYSTEM - INTERFACES
EFFECTIVITY
SHZ ALL 31-33-00
Page 6
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-004
PRINTER SYSTEM - INTERFACES
PRINTER SYSTEM - INTERFACES
EFFECTIVITY
SHZ ALL 31-33-00
Page 7
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-004
Purpose
The printer gives a paper copy of reports.
Features
The printer has 12 ARINC 429 data bus inputs and 1 status/
control output ARINC 429 data bus. The printer uses white
thermal sensitive paper.
Controls and Indicators
These are the printer controls:
* SLEW switch (green) - moves the paper
* RESET switch (green) - turns off the message light
* TEST switch (green) - starts the built-in test.
These are the printer indicators:
* MSG light (blue) - comes on when you get a report
* PAPER light (yellow) - comes on when there is no paper in
the printer
* FAIL light (yellow) - comes on if the self test finds a failure
* PAPER FULL-EMPTY indicator - shows the quantity of paper
remaining in the printer.
Turn the latch counterclockwise to open the front panel door.
This gives you access to the paper roll.
PRINTER SYSTEM - PRINTER
EFFECTIVITY
SHZ ALL 31-33-00
Page 8
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-005
PRINTER SYSTEM - PRINTER
PRINTER SYSTEM - PRINTER
EFFECTIVITY
SHZ ALL 31-33-00
Page 9
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-005
General
The printer prints reports when it gets a command. It monitors
all printer operations and the printer paper supply.
Power
The printer gets 115v ac from transfer bus 1.
Operation
The printer accepts up to 12 inputs from various LRUs. The
inputs are ARINC 429 data buses.
The input data goes from the ARINC 429 receiver to the
microprocessor and the printer data buffer. The microprocessor
controls the data buffer and the motor driver and prints the data
using the thermal print head.
The microprocessor sends printer status and handshake data to
all connected LRUs on an ARINC 429 data bus.
The paper indicator shows the amount of paper on the paper
roll and tells the microprocessor if the paper roll is empty. The
microprocessor also monitors the door switch. The
microprocessor stops all print operations if the door is open
or if the printer is out of paper.
The microprocessor controls the lights on the front of the printer
and turns the printer lights on or off for printer operation.
BITE
The microprocessor monitors printer operation and does BITE
tests.
PRINTER SYSTEM - PRINTER FUNCTIONAL DESCRIPTION
EFFECTIVITY
SHZ ALL 31-33-00
Page 10
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-006
PRINTER SYSTEM - PRINTER FUNCTIONAL DESCRIPTION
PRINTER SYSTEM - PRINTER FUNCTIONAL DESCRIPTION
EFFECTIVITY
SHZ ALL 31-33-00
Page 11
D633A101-SHZ1 Jun 10/2003
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
31-33-00-006
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