Xerox Phaser 840, Service Manual

Page: 20 / 287

1 - 4 Phaser 840/850/860/8200 Color Printer - Service Manual
Phaser 850 Printer Overview
The Phaser 850 Color Printer is an Adobe PostScript Level 3 (Version 3010) color,
solid-ink printer. It also supports color PCL 5c at 600 x 600 dots-per-inch resolution. The
Phaser 850 printer prints at a number of resolutions: A 13.9 page-per-minute (ppm) Fast
Color Mode, a standard 7.9 ppm mode, an Enhanced mode of 450 x 818 dpi (with dot-size
switching) at 4 ppm and a High-Resolution/Photo mode of 600 x 1200 dpi at 2.2 ppm.
The printer also includes a 6.3 ppm Fast Transparency Mode and a 3.4 ppm Standard
Transparency Mode.
Standard Phaser 850N.
The Standard Phaser 850 printer features 136 built-in fonts,
and is equipped with 32 Mbytes of RAM. It can be upgraded to configurations of 64, 128,
192, and 256 Mbytes of RAM using combinations of two 32-, and 64-, and 128-Mbyte
RAM DIMMs.
The Phaser 850DP.
The Phaser 850DP printer option upgrades the printer to
64 Mbytes of RAM and includes additional features like 2-sided printing, job pipelining
and First Page Preview mode.
The Phaser 850DPF.
This is a freecolorprinters.com program printer which includes a
High-Capacity paper tray and 3 years of on-site service.
The Phaser 850DX.
The extended features DX option has all the features of the
Phaser 850DP printer, but includes additional RAM to bring the printer to 128 Mbytes of
RAM. It also includes a High-Capacity Paper Tray and an internal IDE hard drive.
Like the Phaser 840 printer, all printers support four available paper trays. They also
support the optional 500-sheet High-Capacity Paper Tray Assembly. The printer can also
print seven sizes of hand-fed envelopes.
A 200-MHz PowerPC processor oversees print engine operations and PostScript image
processing. The printer features a 10/100BaseT Ethernet port (with support for EtherTalk,
Novell NetWare/NDS, TCP/IP, DHCP and Windows Peer-to-Peer). A USB high-speed
serial port is also provided. A rear panel slot allows customers to install a Token Ring
card supporting TokenTalk, Novell NetWare/NDS and TCP/IP. When inserted, this card
also disables the standard 10/100BaseT port. LocalTalk and 10Base2 are not supported by
the Phaser 850 printer. A second rear panel slot accommodates an internal IDE hard drive
for print job collation, job accounting, font storage and PDF direct printing.
An integral bi-directional parallel port (IEEE 1284C with ECP mode) supports printing
and also allows connecting a parallel interface scanner for optical copying support.
Like the Phaser 840 printer, the Phaser 850 printer supports Job Accounting.