How To Use This Manual; Reference Symbology - Xerox DocuPrint C55 Service Manual

HOW TO USE THIS MANUAL

Section 1, Service Call Procedures will direct
you to each section of the manual necessary
to perform a service call.
You will begin with Initial Actions which
suggest how to collect problem symptoms and
evidence to be used in the next section, the
System Checks Section.
Details in the System Checks are designed to
assist you in classifying, repairing and verifying
the repair of the problem. From here, you may
be directed to any of the other six sections of
the service manual depending
symptoms observed and the results of
suggested tests. After a repair has been
verified (or during a repair activity) instructions
are included to direct you into Every Call
Activities.

REFERENCE SYMBOLOGY

Reference Symbology provides supportive
data for Repairs, Adjustments, and the RAPs.
The symbols that refer to this supportive data
are shown in the paragraphs that follow.
Note:
This symbol is used to refer to notes,
1
usually found on the same page.
Parts Lists
PL 2.4 (example)
In the example above, the parts list reference
and the exploded view drawing would be found
in Section 5 on sub-section 2.4.
DocuPrint C55/C55mp/[NC60]
Descriptions of
symbols are included
troubleshooting when
diagrams.
Switches/Relays
Safety interlock switch, circuit open.
Safety interlock switch, circuit closed.
on the
Switch/relay with momentary contacts
shown normally open.
Switch/relay with momentary contacts
shown normally closed.
Magnetically actuated Switch.
Miscellaneous Symbols
A flag that identifies a wire that has
2
been referred to in the text.
[ 8-2 ] Indicates a Diagnostic Code used to
check a particular component.
Identifies a test point, test hole or test
stake on a PWB.
A
Auditron/Key Counter connection.
commonly used graphic
in order to aid
using the circuit
2/99
iii
This symbol, used with a number,
indicates that the actual number may
be equal to or very near the value of
the designated number.
Triac, used to switch AC power.
Light Emitting Diode (LED).
Led/Phototransistor Sensor.
MOT
Motor.
Thermistor Bead, used to sense
temperature.
A Driver which is used to switch on
DC Components.
GND
A/D
Analog to Digital Converter.
RL
Relay
Solenoid
INTRODUCTION