The Phaser 740 Color Printer - Tektronix Z740/N - Phaser 740 Color Laser Printer Service Manual

The Phaser 740 Color Printer

The Phaser 740 Color Printer combines a color laser, continuous-tone print engine
with an image processor supporting Adobe's PostScript Level 3 page description
language. The image processor features a bi-directional parallel interface and a
10baseT Ethernet port for host communication. Optional network adapter cards to
the image processor allow the printer to communicate on networks using LocalTalk,
Ethernet 100baseT or Token Ring protocols. The Ethernet network card supports
EtherTalk 100baseT, Novell and TCP/IP. With the Token Ring network card, the
printer supports Token Ring protocols. With 32 Mbytes of RAM installed, the printer
supports the color PCL5C printer language too.
The printer is available in four configurations:
The Phaser 740L is a monochrome version of the printer which can easily be
customer-upgraded to be a color printer. It prints at a resolution of 600 x
600. It is equipped with 16 Mbytes of RAM which can be supplemented
with an additional RAM DIMM. The printer contains 136 standard, built-in
fonts. The Phaser 740L is identical to the Phaser 740 except is set to only use
a black toner cartridge. It features a removable plate which blocks out the
locations of the color cartridges.
The Phaser 740 Base comes standard with 32 Mbytes of RAM which can be
supplemented with one or two additional 16-, 32-, 64- and 128-Mbyte RAM
DIMMs; maximum usable capacity is 80 Mbytes. The printer contains 136
standard, built-in fonts. The printer contains 136 standard, built-in fonts.
The Phaser 740 Base prints at a resolution of 600 x 600 dots-per-inch.
The Phaser 740 Plus includes 32 Mbytes of additional memory (64 Mbytes
total) and a SCSI interface board. The presence of the SCSI board (and the
extra memory) enables the printer to print at higher resolutions 1200 x 1200
(Premium mode) dots-per-inch and also support image pipelining for
greater throughput, a print collation mode, and a "check print before
proceeding with job" mode. The printer contains 136 standard, built-in
fonts.
The Phaser 740 Extended (a factory-only option) features a different ROM
SIMM than the other printers. It includes 128 Mbytes total memory, SCSI
port, 1200 x 1200 color printing, check print mode, print job collation
(requires hard drive), copystation support and print pipelining.
The color printers support a 5.3 page-per-minute, composite-black printing "Fast
Color" mode which prints at 600 x 600 dpi using three passes, cyan, magenta and
yellow, to produce an image instead of the usual four passes, cyan, magenta, yellow
and black. Each printer also features "Presentation" mode printing in which a paper
print is printed with the color settings of a transparency print. Presentation mode
produces the smoothest and brightest large-area fills. The printer prints in
monochrome at 16 prints-per-minute.
2 Phaser 740 Color Printer