Technical information
7x-l
OPERATIONS AND
TIMING
KZZ3
of the
copier
as necessary and, if it finds
an
error, it
indicates
an
error
code
on
the copy counter
on
the
control panel.
The copier’s microprocessor
is
equipped with a
mechanism to check its condition (sensors,
in
par-
See
thetable belowfordescriptionsof
each
ofthe
error
codes;
for
EOOO,
‘E’
and ‘000’ are flashed
alternately.
titular). The microprocessor
monitors
the operation
Error code
Cause
Description
-
Thermistor
(THl:
poor
contact
or The output of TH1 fails to
reach
lOO%/
r
n
m
b7
open circuit)
212°F within 1
min
after power-on.
‘-
’
”
”
-
Heater (Hl
;
open circuit)
’
-aa-
-
Thermoswitch
(TSl;
faulty)
-
SSR (faulty)
-
DC controller PCB (faulty)
r
bm7
t
-
Thermistor (THI;
shon
circuit)
The output of TH1 exceeds
220°C/4280F.
b=
b,(
)A
(
:
%cr%%~r
PCB (faulty)
-
SSR (faulty)
-
DC controller PCB (faulty)
-
Fixing heater (open circuit)
-
SSR
ON
is
detected while HTRD
is
OFF
immediately after power-on (about 3
sec).
-
SSR
ON
is
detected continuously for 3
sec
or more while HTRD
is
OFF.
1’
b7
7n
-
Counter (CNTl
;
open circuit)
-
Normal if the check
signa1
is
‘0’
immedi-
,=
b,(
=0-t
-
DC controller PCB (faulty)
ately beforethe countergoes
ON,
when
the COPY START key
is
pressed, or at
power-on.
-
Scanner motor (M2; faulty)
-
The scanner initial operation
is
no!
over
-
DC controtler PCB (fautty)
within 15
sec
at power-on.
-
Scanner home position sensor
-
The
AE
reverse operation
is
not over
(04; faulty)
within 15
sec.
*
The reverse operation
is
not over within
10
sec
after exposure.
All
keys
on
the control panel
will
be locked
without error
code
indication.
-
Lens
home position sensor
*
The
lens
is
not set to the
DIRECT
posi-
(Ql;
faulty)
tion within 20
sec
after
initial
rotation
is
-
Lens
motor (M3; faulty)
started.
-
Lens
wire (faulty)
-
The
lens
is
not set lo the specified
-
DC controller PCB (faulty)
reproduction ratio position within 20
sec
-
Blank shutter home position
sen-
after the COPY START key
is
pressed.
sor (Q2; faulty)
*
The blankshutter home position sensor
-
Blank shutter drive wire (faulty)
(Q2)
does
not
detect
the blank shutter
within 20 sec after the commencement
of
initial
rotationoraftertheCOPY
SART
key has been pressed.
*
Lamp regulator (faulty)
The zero
cross
signa1
(ZXDP) has
fluctu-
-
DC controller (faulty)
ated.
COPYAICHT
G
1992
CANON
ING.
CANON
NPZl20/2020
RN.2 OEC.
1952
PRINTEO
IN JAPAN
IIMPAIME
AU
JAPONI d
3-57