Printer Architecture - Pitney Bowes DA80F Service Manual

3 • Theory
3.2 Printer
Architecture
3-2
The printer system is made up of several sub-systems (see also Figure 3-1):
• Universal Power Supply - The universal power supply has auto sensing/
switching for input voltage and intelligent shutdown capability. It ensures
proper parking of the cartridges in the maintenance station and proper
shutdown of the software. (It is the same supply used in the midrange
DM series mailing machines.)
• System Controller - The system controller is comprised of the overall op-
erating system in the firmware that controls the behavior of the system
and coordinates activities between the other sections.
• User Interface - The user interface is the LCD display, the buttons, and
the software to drive it within the firmware.
• Feeder and Transport Motion Control - The feeder and transport motion
control is responsible for feeding and positioning the envelope beneath
the printer for printing. All material motion is controlled by the transport
motor and firmware.
• Head Management - The head management controls the proper operation
of the print cartridges.
• Communications - The communications hardware and firmware are re-
sponsible for the interface to the host PC through which print streams are
received and passed to the system controller for parsing and rendering.
Power
Universal Power
Supply
Communications
USB Ethernet
Busy/Error
Figure 3-1 Printer System Functional Architecture
DA80F/DA95F AddressRight™ Printers Service Manual (SV61962 Rev. A)
Operator
Display
Input
Text
User Interface
System Feeder
Controller and
Transport
Motion Control
Head
Management
LED