February 2013
8-71
ColorQube® 9303 Family
Principles of Operation
Low Pressure Reservoir
The low pressure reservoir is a thermally conductive part with four chambers, each of which
has four outlets at the bottom for a total of sixteen outlets. Ink travels out at the bottom of the
chamber, and each outlet orifice also houses a disk valve. A wire mesh filter is placed inside of
each low pressure chamber to remove contaminants.
High Pressure Reservoir
The high pressure reservoir is a thermally conductive part with sixteen chambers, four per
color. Features in the dividing walls of the chamber act to stop the disk valve in its open posi-
tion. Upon actuation, pressurized air enters the opening at the top of the chamber, and ink is
forced against the disk valve, which causes it to close and directs the ink through an exit path
opposite the disk valve.
Normally Open Disk Valve
The normally open disk valve is 7 mm in diameter. The contact seat is an ‘O’ shaped flat
around the outlet orifice of the low pressure ink reservoir.
Figure 17
.
Figure 17 Check valves
Ink Reservoir Heater
Figure 18
. Sandwiched between the manifold plate and the high pressure reservoir, the reser-
voir heater maintains the set point temperature. The ink reservoir is brought to and maintained
at temperature by two rod type AC heaters which are thermally protected from overheat.
Figure 18 Ink reservoir heaters
Manifold Plate
The manifold plate routes ink from the 16 high pressure reservoir chamber outlets to the umbil-
icals. The manifold plate channels the ink into four rows, each row containing CYMK. Each
channel has an outlet, which passes through a small boss on the other side of the plate. This
boss acts as a seat for a normally-closed check valve.
Umbilical Connector Plate
The connector plate completes ink routing to the umbilicals. The start of each ink channel
houses a spring and provides a recess for the normally closed check valve. The outlet of each
channel is a through hole where the tube fitting will be pressed in.
Normally Closed Check Valves
The normally closed check valves press against the top of the boss on the manifold using a
spring that acts on the metal side. The pressure applied to the high pressure ink reservoir in
order to deliver ink will act to overcome the spring force and open the valve.
Ink Level Sense
Ink level detection,
Figure 19
is provided by one of two capacitive sensor assemblies. Each
assembly has two capacitive sensor probes that sit in the low pressure reservoir and monitor
ink level for two colors (1 probe in each ink reservoir). One set monitors the black and yellow
while the other set monitors magenta and cyan.
Summary of Contents for ColorQube 9303 Series
Page 1: ...Xerox ColorQube 9303 Family Service Manual 708P90290 February 2013...
Page 4: ...February 2013 ii ColorQube 9303 Family Introduction...
Page 18: ...February 2013 1 2 ColorQube 9303 Family Service Call Procedures...
Page 92: ...February 2013 2 68 ColorQube 9303 Family 05F Status Indicator RAPs...
Page 104: ...February 2013 2 80 ColorQube 9303 Family 12 701 00 65 Status Indicator RAPs...
Page 200: ...February 2013 2 176 ColorQube 9303 Family 12N 171 Status Indicator RAPs...
Page 292: ...February 2013 2 268 ColorQube 9303 Family 16D Status Indicator RAPs...
Page 320: ...February 2013 2 296 ColorQube 9303 Family 42 504 00 42 505 00 Status Indicator RAPs...
Page 500: ...February 2013 2 476 ColorQube 9303 Family 94B Status Indicator RAPs...
Page 648: ...February 2013 3 2 ColorQube 9303 Family Image Quality...
Page 653: ...February 2013 3 7 ColorQube 9303 Family IQ 1 Image Quality Figure 1 IQ defects 1...
Page 654: ...February 2013 3 8 ColorQube 9303 Family IQ 1 Image Quality Figure 2 IQ defects 2...
Page 655: ...February 2013 3 9 ColorQube 9303 Family IQ 1 Image Quality Figure 3 IQ defects 3...
Page 656: ...February 2013 3 10 ColorQube 9303 Family IQ 1 Image Quality Figure 4 IQ defects 4...
Page 657: ...February 2013 3 11 ColorQube 9303 Family IQ 1 Image Quality Figure 5 IQ defects 5...
Page 658: ...February 2013 3 12 ColorQube 9303 Family IQ 1 Image Quality Figure 6 IQ defects 6...
Page 660: ...February 2013 3 14 ColorQube 9303 Family IQ 1 Image Quality Figure 9 IQ defects 9...
Page 661: ...February 2013 3 15 ColorQube 9303 Family IQ 1 Image Quality Figure 10 IQ defects 10...
Page 662: ...February 2013 3 16 ColorQube 9303 Family IQ 1 Image Quality Figure 11 IQ defects 11...
Page 663: ...February 2013 3 17 ColorQube 9303 Family IQ 1 Image Quality Figure 12 IQ defects 12...
Page 664: ...February 2013 3 18 ColorQube 9303 Family IQ 1 Image Quality Figure 13 IQ defects 13...
Page 728: ...February 2013 3 82 ColorQube 9303 Family IQ 29 IQ 30 Image Quality...
Page 736: ...February 2013 3 90 ColorQube 9303 Family TP 15 Image Quality Figure 2 Media path test pages...
Page 758: ...February 2013 3 112 ColorQube 9303 Family IQS 7 IQS 8 Image Quality...
Page 778: ...February 2013 4 20 ColorQube 9303 Family REP 1 9 Repairs Adjustments...
Page 794: ...February 2013 4 36 ColorQube 9303 Family REP 3 10 Repairs Adjustments...
Page 1144: ...February 2013 4 386 ColorQube 9303 Family REP 94 1 Repairs Adjustments...
Page 1176: ...February 2013 4 418 ColorQube 9303 Family ADJ 62 3 ADJ 62 4 Repairs Adjustments...
Page 1182: ...February 2013 4 424 ColorQube 9303 Family ADJ 75 3 Repairs Adjustments...
Page 1184: ...February 2013 4 426 ColorQube 9303 Family ADJ 82 1 Repairs Adjustments...
Page 1186: ...February 2013 4 428 ColorQube 9303 Family ADJ 91 1 Repairs Adjustments...
Page 1552: ...February 2013 6 260 ColorQube 9303 Family dC140 General Procedures Information...
Page 1576: ...February 2013 6 284 ColorQube 9303 Family dC640 General Procedures Information...
Page 1578: ...February 2013 6 286 ColorQube 9303 Family dC708 dC715 General Procedures Information...
Page 1600: ...February 2013 7 2 ColorQube 9303 Family Wiring Data...
Page 1696: ...February 2013 8 2 ColorQube 9303 Family Principles of Operation...
Page 1808: ...February 2013 8 114 ColorQube 9303 Family Principles of Operation...
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