HP DesignJet T730

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Dierent quantities of media in the Multi-sheet Tray. (A taller stack of sheets will reect a little more
light back to the sensor).
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Dierent media types, including o-white and glossy media.
The Multi-sheet Media Sensor may have problems in detecting certain media types:
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Transparent.
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Dark-colored paper.
Electronics
Both the encoder and motor-drive system are managed by the Printer Bundle Board located on the right-hand
side of the printer.
Scan Axis system: Carriage and Carriage impelling
This system moves the Carriage from left to right and right to left of the printer on top of the paper in a
controlled manner to perform printing, cutting, paper detection, and any other Carriage movements for
servicing and nal capping process.
The system comprises the Carriage sliding on the scan axis rod, on which rotates and whose position is
determined by a cam mounted on the Carriage, which slides touching the bottom surface of the anti-rotation
rail.
There are two trailing cables mounted one on top of the other, which connect the Carriage with the main
electronics control board. A scan-axis encoder strip is needed for the Carriage to determine its position, and a
Carriage Motor which impels the Carriage via a belt.
The trailing cable is held in position by a plastic holder, which clips onto the scan axis structure. A spring-
loaded loop ensures follow-up action of the cables with the Carriage movement. Two plastic cable sliders are
also placed to ensure minimum contact of the trailing cables with the scan axis structure. The plastic sliders
are greased to prevent ink spray (aerosol) deposits from accumulating on them, generating a sticky surface
which could retain the cables and then be damaged by Carriage movement.
The Encoder Strip Sensor is located inside the Carriage, once the Carriage is assembled the Encoder Strip
crosses the Carriage, passing by the detection area of the sensor inside the Carriage.
ENWW Subsystems 35