Xerox ColorQube 9303 Series, Руководство по обслуживанию

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February 2013
8-17 ColorQube® 9303 Family
Principles of Operation
Circuit Board Descriptions
Refer to Section 7 of the service manual for wiring diagrams for the boards listed below.
IME Controller Board
The IME controller generates and sends control information to the printhead driver, drum
driver, media path driver, marking unit driver boards, and the wave amplifiers. It also receives
and processes image data and control signals sent from the system controller board specific
connector information including specific signal names, quantities, supply voltages being sent
across the interfaces, and pinouts are contained in Section 7.
Single Board Controller
The single board controller consists of two sections:
• Copy and process controller
• Network controller.
The copy and process control circuitry comprises a dedicated processor, complete with hard
disk drive, whose main function is to provide overall control, (inter-device communications),
and to handle the flow of data to and from the following modules and devices:
• Scanner
• DADH
• Control panel
• IME
• Foreign device interface
• Power supply and distribution
This is the equivalent of a combination of the main controller PWB and the SIP, (Scanned
Image Processor), in previous machines.
The network controller provides control of the communications data entering and leaving the
machine via the following:
• Ethernet 10/100/1000 port, using a standard, RJ-45 connection,
• USB 2.0 ports, using standard, 4-pin connections,
• Serial port, using a standard, DB-9 connection.
Media Path Driver Board
The Media Path Driver board (MPD) contains circuitry that performs the following functions:
• Drives various motors and contains associated circuitry,
• Drives various solenoids and contains associated circuitry,
• Reads various sensors, thermistors etc.
• Communications link interface for IMD, PFP, OCT, LCSS, HVF, 3TM, and SBC.
Marking Unit Heater Board
The marking unit heater board controls the four AC printhead heaters, AC heaters for the ink
reservoir, and the ink umbilical heaters.
Ink Entry Board
Located on the ink loader, the ink entry board connects the Ink Loader and its functions to the
IME Controller Board through the media path driver board.
The ink entry board receives analog input from the ink thermistors and the ink entry, ink stick
low, and ink SKU sensors. This board also drives the ink SKU motor, ink drive motor, and pro-
cesses input from the ink drive motor encoder. The thermistor data is input to four A/D convert-
ers. Sensor data from the ink stick level sensors, ink drive motor encoder, and the digitized
thermistor data is transmitted from the ink entry board to the media path driver board through a
serial interface. Ink drive motor control data is received from the media path driver board.
Drum Driver Board
The drum driver board is located behind the marking engine on the right, inboard side of the
IME. The circuit board's primary function is to provide the interface for the drum drive motor,
power supply, drive the transfix motors, digitize video from the IOD and registration / preheater
scan bars. Other functions include driving the stripper solenoid, fans, cleaning unit, and moni-
toring several sensors.
Thermal Cutout Board
Fuses on the thermal cutout board protect the drum from overheating.
Figure 1 , illustrates the location of the thermal cutout board mounted on the registration / pre-
heat assembly.
Figure 1 Thermal cutout board
Fan Enable A 3.3V high-level signal enables the power supply fan. A low
level signal disables the fan.
Table 5 Power supply information
Signal Name Description