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Phaser 840/850/860/8200 Color Printer - Service Manual
Left I/O board
A new left I/O board.
Right I/O board
New board to support the new
front panel.
Y-axis drum
encoder assembly
A new Y-axis drum encoder is used,
which does not use a separate drum
home sensor.
Lower stripper
blade holder and
stripper blade
The lower stripper fingers of the
have been replaced with a
replaceable stripper blade, called a
rapid release guide, and a guide
holder which is backward compatible
to the Phaser 840.
Color change.
Rollers and
clutches
Phaser 850 roller shafts are
re-tooled for clutches with C-clips
instead of the Phaser 840 printer’s
snap-fit feature. The parts are
reversed compatible only if the shaft,
clutch and e-ring combination
replace the Phaser 840 parts. The
bushings for the Phaser 850’s
duplex roller are installed with
C-clips from the inside of the
chassis.
A new Drum Maintenance clutch is
used in the Phaser 850 printer to
dramatically improve reliability.
Round pick roller to improve
reliablility.
The pick roller now uses the
same clutch as the upper feed
roller and the cap/wip/purge
drive.
New Drum Maintenace Cam to
support new Drum Maintenance
alogrithms.
Preheater
A new paper preheater designed to
accommodate the travel of the paper
preheater entry flags is used in the
Phaser 850 printer.
The preheater
is reverse compatible into the
Phaser 840 printer.
Inks
Ink is
NOT
interchangeable
between models.
The Phaser 850 printer uses new
inks using a different formulation.
New ColorStix
®
II formulation
specific to the Phaser 860.
Legal Tray w/Bail
New feature for the Phaser 860
only.
High-Capacity
Paper Tray
Assembly
Reliability improvements. These
improvements are also being
made on the Phaser 840 and
850.
Front Panel Display
Improved design for ease of
navigation.
Service diagnostics are
accessible through the Front
Panel, for more information refer
to "Front Panel Shortcuts", on
page 4-119.
Reduced ESD susceptibility.
Table 1-7 Summary of differences between Phaser 840/850/860
Phaser 840 Part
Description
840 to 850 Difference
850 to 860 Difference
Summary of Contents for Phaser 840
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