Xerox ColorQube 9303 Series, Service Manual, Page: 1399 / 1812

February 2013
6-107 ColorQube® 9303 Family
GP 40
General Procedures/Information
DCS Digital Command Signal
DDF Device Description File
Delta TRC Measures the relative intensity between heads at area coverages less
than 100%. If needed, will adjust the image density for improvement.
Densiometer Measures simple density. Photoelectric device, simply measures and
computes how much of a known amount of light is reflected from - or
transmitted through an object. Works on reflectance
Device Profile Determines what colours a device is capable of producing - also known
as profiling or characterization. Only accurate if device is working as
designed.
DHCP Dynamic Host Config Protocol (similar to BootP)
DIMM Dual In Line Memory Module
Discovery Base operating system
Dithers Non solid image area (half ones on B/W)
DLM Dynamically Loadable Module
DM Drum Module - Drum is anodized Aluminium and is expected to last
approximately 3 million prints (life of product?) requires a breaking of 15
minutes at new install.
DMO-E Developing Markets Operations East (was part of RX)
DMO-W Developing Markets Operations West (was part of ACO)
DMU Drum Maintenance Unit, also known as the Cleaning Unit (CU)
DOS Disk Operating Systems
Dosing Amount of ink which was sent from the ink reservoir to print heads -=
measured in grams.
Dot Spread or Dot
Gain A measure of the final size of a single ink pixel on media after the trans-
fixing process. (Dots may ‘grow’ depending on paper etc.)
DIS Digital Identification Signal
DMA Direct Memory Access
DMO Developing Markets Operations
DOF Direction Of Feed, paper width sensors
DPI Dots per inch
DRAM Dynamic Random Access Memory
Drooling Small amounts of ink ‘oozing’ out of the Print Head, this may eventually
lead to clogged jets and may stain the face plate. If it only happen when
the same SWFA is purging the other head - then 1 PH purges should be
avoided.
Drop Mass The mass of an individual drop of ink that has been ejected by the print
head. Measured during Print Head ‘normalising’ process. Not field mea-
surable since it requires lab grade scales in zero wind conditions. Drop
mass goes down as a PH ages so compensations / calibration is neces-
sary.
Drop Mass Param-
eters Measures the sensitivity of drop mass and drop position to voltage, in
preparation for running “Drop mass reset”
Drum Ghosting Looks somewhat like ink stains.
Table 1 Terms, Acronyms and Abbreviations
Term Description
DSR Data Set Ready
DSP, DSP2 Digital Signal Processing
DST Daylight Saving Time
DT Dial Tone
DTC Digital Transmit Command
DTMF Dual Tone Multiple Frequency
DU Density Units
DUI Dumb UI - all processing located offline to the UI
Duplex Dropout Loss of pixels on side 2 - generally due to 1st side oiling of media issues
Dust Off Routine to return machine to pre-install state
EAA Electron Auditron Administrator
EBS Electronic Billing Service
EC European Community
ECM (1) Electronics Control Module. (2) Error Correction Mode.
ECAT External Customer Acceptance Test
EHS Environmental Health and Safety
ELOG Electronic Log
Embedded Fax A fax system included in a system device
Embossing Outlines of the first printed side seen on the second printed side of a
duplex image. The outlines are at the edge of ink restrictions. The
embossing artifact is highly image dependant.
EME Electromagnetic Emission
Engine Block The Drum/Transfix/Drive motor unit together is called the engine block.
EOL End Of Line
EOM End Of Message
EOP End Of Procedure
EOR End Of Retransmission
EPA Environmental Protection Agency
EPC Electronic Page Collation (memory dedicated to temporary retention of
images captured from the scanner and network controller)
EPROM Erasable / Programmable Read Only Memory
EP-SV Electronic Partnership Supervisor (kit)
ERR End Retransmission Response
ERU Engineer Replaceable Unit
ESD Electrostatic Discharge
ESG European Solutions Group
ESP Encoded Skew and Process - refers to RalPH functions of skew and reg-
ister throughout media.
ESS Electronic Sub-System. For this machine use NC
ETP Electronic Test Pattern
EU European Union
EUR Europe
Fault Tolerant Limp mode
Table 1 Terms, Acronyms and Abbreviations
Term Description