Introduction
Introduction
The following rules apply throughout this Service Manual:
The following rules apply throughout this Service Manual:
1. Each chapter contains sections explaining the
1. Each chapter contains sections explaining the purpose of specific functions and the relationship between elec-
purpose of specific functions and the relationship between elec-
trical and mechanical systems with reference to the
trical and mechanical systems with reference to the timing of operation.
timing of operation.
In
In the
the diagrams,
diagrams,
represents
represents the
the path
path of
of mechanical
mechanical drive;
drive; where
where a
a signal
signal name
name accompanies
accompanies the
the
ssy
ym
mb
bo
oll,
, tth
he a
e arrrro
ow
w
iin
nd
diiccaattees
s tth
he d
e diirreeccttiio
on
n o
of
f tth
he
e eelleeccttrriic s
c siig
gn
naall..
The expression "turn on the power" means flipping on the power switch, closing the front door, and closing
The expression "turn on the power" means flipping on the power switch, closing the front door, and closing
the delivery unit door, which results in supplying the
the delivery unit door, which results in supplying the machine with power.
machine with power.
2. In the digital circuits, '1'is used to
2. In the digital circuits, '1'is used to indicate that the voltage
indicate that the voltage level of a given
level of a given signal is "High", while '0' is used
signal is "High", while '0' is used
to indicate "Low".(The voltage value, however, differs from c
to indicate "Low".(The voltage value, however, differs from c ircuit to circuit.) In addition, the
ircuit to circuit.) In addition, the asterisk (*) as
asterisk (*) as
in "DRMD*" indicates that the DRMD signal goes on when '0'.
in "DRMD*" indicates that the DRMD signal goes on when '0'.
In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field.
In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field.
Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained
Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained
in terms of from sensors to the input of the
in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB
DC controller PCB and from the output of the DC controller PCB
to the loads.
to the loads.
The descriptions in this Service Manual are subject to change
The descriptions in this Service Manual are subject to change without notice for product improvement or other
without notice for product improvement or other
purposes, and major changes
purposes, and major changes will be communicated in the form
will be communicated in the form of Service Information bulletins.
of Service Information bulletins.
All service persons are expected to have a good understanding of the contents of this Service Manual and all
All service persons are expected to have a good understanding of the contents of this Service Manual and all
relevant Service Information bulletins and be able
relevant Service Information bulletins and be able to identify and isolate faults in the
to identify and isolate faults in the machine."
machine."
Summary of Contents for imageRUNNER 1023
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Page 33: ...Chapter Chapter 4 4 ORIGINAL E ORIGINAL EX XPOSURE SYSTEM POSURE SYSTEM ...
Page 43: ...Chapter Chapter 6 6 IMAGE FORMATION IMAGE FORMATION ...
Page 57: ...Chapter 9 EXTERNALS CONTROLS ...
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Page 108: ...SERVICE MANUAL Cassette Feeding Module N1 ...
Page 117: ...Chapter 4 MAINTENANCE ...
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