HP Designjet T1100- and T610-series Printers:
Productivity
Productivity and Image Quality.............................................................................................................. 2
In-printer Processing Architecture ........................................................................................................... 2
Image Processing Pipeline: T610-series .................................................................................................. 3
Image Processing Pipeline: T1100-series ................................................................................................ 4
Scalable Printing Technology and HP 72 Printheads ................................................................................ 6
For more information............................................................................................................................ 7
HP Designjet T1100- and T610-series printers provide outstanding productivity and image quality with
powerful in-printer, hardware-based image processing that minimizes workstation computational load
and network traffic to deliver dependable printing results.
Productivity and Image Quality
On plain paper, HP Designjet T1100- and T610-series printers can produce a single A1/D-size color
line drawing in 35 seconds (Economode) and up to 52 prints per hour.
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HP Designjet T1100- and T610-series printers deliver significantly higher image quality and at higher
productivity compared to the HP Designjet 800- and 1000-series. This is clearly seen in the
Productivity-Image Quality charts
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in Figure 1, where faster mechanical printing times are shown from
left to right.
Figure 1. Relative Image Quality and Print Time: HP Designjet 800-, 1000-, and T1100-series printers
On plain paper, image quality in Fast mode on HP Designjet T1100- and T610-series printers was
ranked above all print modes on the 800- and 1000-series. Not only do HP Designjet T1100- and
T610-series printers have higher productivity than 800- and 1000-series Designjets, but they deliver
improved print quality as well. This is possible with a new writing system that has higher media
advance accuracy, better drop placement accuracy, and smaller drop volumes.
HP Designjet T1100- and T610-series printers produce very fine, sharp black lines
length accuracy
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. With the capability for color emulation of HP Designjet 500-, 800-, and 1000-
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with 0.1% line
series printers, HP Designjet T1100- and T610-series printers offer color consistency when printing
from popular applications like AutoCAD™ along with significantly higher levels of productivity and
quality.
In-printer Processing Architecture
HP Designjet T1100- and T610-series printers use an ASIC5 to perform fast, hardware-based color
processing, pixel scaling, and halftoning in the printer. The ASIC is a fully-custom design with
architecture and firmware developed by HP. It can process up to 50 million pixels per second and
can transfer up to 50 GB of data per second over its two 32-bit data busses.
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Mechanical printing times, 24-inch and 42-inch T1100, T1100ps, and T610 printers.
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For each printer and print mode, an internal HP print quality jury ranked prints in terms of relative image quality.
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On matte film, line widths of 45.4um horizontal and 67um vertical can be obtained.
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±0.1% of the specified vector length or ±0.2 mm (whichever is greater) at 23°C (73°F), 50-60% relative humidity, on E/A0-size roll feed HP
Matte Film in Best or Normal mode.
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ASIC stands for Application-Specific Integrated Circuit
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How the workstation, network, and printer process large and multiple graphics pages has a
significant impact not only on overall printing speed but also on output quality and the productivity of
users and workgroups. Conversion of a page into a bitmap image can be done either in the user’s
workstation or in the printer.
• When print jobs are processed in the workstation, large bitmap image files are produced that must
be sent over the network to the printer.
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In this case, the workstation and printer must be
synchronized, because delays in sending data (due to workstation or network load) can cause the
printer to stop and wait for data. This produces visible bands on the print because the ink dries
differently when the print carriage stops and waits compared to continuous printing. This effect is
called “wait-state banding”. When processing large and complex pages, and when sending
multiple bitmap image files over the network, dependable printing performance and print quality
can be compromised by workstation load and heavy network traffic.
• When print jobs are processed in the printer, the workstation sends only compact spool files
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to the
printer. This data is converted to a bitmap image in the printer so that the large volume of bitmap
data is kept within the printer’s internal high-bandwidth image processing architecture. Situations
where the printer must stop and wait for incoming data are effectively eliminated, and workstation
and network loading are significantly reduced benefiting both individual users and network clients.
By processing images in the printer, HP Designjet T1100- and T610-series printers provide
dependable printing performance and productivity benefits to single users and workgroups.
Furthermore, real image quality benefits are realized because graphical elements, such as text and
lines, are recognized by HP’s embedded language processors.
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This allows HP Designjet printers to
optimize bitmap image generation to produce crisp, clearly-readable text and sharp lines especially
when printed against colored or neutral backgrounds.
Image Processing Pipeline: T610-series
The image processing pipeline of HP Designjet T610-series printers is optimized for single-user
environments. Figure 2 shows the data paths from the printer’s I/O manager
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through to pixel
instructions sent to the printheads. Internally, 24 bits per pixel (bpp) sRGB and device-dependent
RGB paths are supported along with a 32 bpp path for device-dependent CMYK. Processes are
color-coded in the figure to show whether they are performed in software (SW) or hardware (HW).
Figure 2. Image Processing Pipeline: HP Designjet T610-series Printers
Image processing in HP Designjet T610-series printers begins with interpreting the byte stream of
graphics data from the I/O manager. This is done by a Parser
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From HP internal tests on a suite of A1 pages, the average size of bitmap image data files sent over the network was 206MB.
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Spool files of HP-GL/2, RTL, PCL, and PostScript data are typically 10 to 100-times smaller than the bitmap image files they produce. Based on
internal HP tests on a suite of A1 pages, the average size of spool files sent over the network was 6MB compared to 206MB of bitmap image
data for the same pages.
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HP-GL/2, RTL, and PCL3GUI processing is supported. HP Designjet T1100ps-series printers support PDF, JPEG, and TIFF formats and also
feature embedded PostScript.
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The IO Manager handles data streams from the printer’s physical interfaces such as USB, Integrated LAN, and JetDirect EIO cards.
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