Maint
04-0020
4.2
Diagnostic Order for Parts Replacement
Device failure
Parts replacement
Item
num
ber
Item
Phot
o-rel
at
ed (
feeder
fai
lur
e)
Ultr
as
oni
c s
ens
or
(mul
ti-feed det
ec
tion f
ailur
e)
Sc
an
-rel
at
ed (
Image f
ailur
e)
Sc
an
-rel
at
ed (
Cleanl
ines
s w
ar
ning)
Impr
int
fai
lur
e (
ink
car
tridge)
Sens
or
(P
Cx
x)
Phot
o I
nt
erru
pte
r (F
/L) (L
/L) (R
/R
)
Co
ver
S
wi
tch
（
I/L
）
Ultr
as
oni
c S
ens
or
as
sembl
y (
trans
mi
tter
/rec
eiv
er
)
CIS
U
nit as
sembl
y (
Front
/Bac
k) *
4
Impr
int
H
ead as
sembl
y (
front
impr
int
er
)
IJP
as
sembl
y (
rear
impr
int
er
)
Mai
n P
CB
as
sembl
y (
CP
S878 P
CB
)
DR
V P
CB
as
sembl
y (
CP
S880 P
CB
)
Rel
ay
P
CB
as
sembl
y (
CP
S881 P
CB
)
CP
S774 P
CB
as
sembl
y (
Panel
P
CB
)
PS
as
sembl
y (
pow
er
uni
t)
Mot
or
/bel
t-rel
at
ed
US
B c
abl
e
Pic
k R
oller
/ S
epar
at
or
R
oller
Rev
er
ser
R
oller
Ink
car
tridge (
rear
impr
int
er
)
Per
iodi
c Ins
pec
tion
Ref
er
enc
e
*
2
*
3
1
Stand-alone operation
5
1.1
Local test
5.2
2
Miscellaneous Tool
6
2.1
Skew accuracy measurement
6.2
2.2
Block accuracy measurement
6.3
2.3
Display of calibration information
6.4
2.4
Information display of Photo /
SW / Ultrasonic sensor
1
3
1
3
2 2 2 2
2
PNL
SW
6.5
2.5
Mechanical operation
6.6
2.6
Auto Calibration
5
6.7.1
2.7
Calibration of white level
3
6.7.2
2.8
Calibration of feeding speed
3
6.7.3
2.9
Measurement of USB data
transfer rate
2
6.8
3
Diagnosis
7
3.1
Logging Information Print
1
7.2
3.2
Work Information Display
2
4
1 1 1
7.3
3.3
Download
3
*1
2
*1
7.4
3.4
Option Settings
5 3
7.5
3.6
Load / Store Device
Unique Information
[1]Store
1
7.6
[2]Load
4
4
Waveform Diagnosis
1
3
1
3
4
* *
7.7
5
Scanner Utility
10.1
Image Sensor Test
10.1.1
Imprint Test
1
4
2
4
10.1.2
Sheet Counter Settings
3 3
10.1.3
Imprint Settings
*
3
10.1.4
6
Periodic Inspection and
Maintenance Items
3
6.1
Cleaning
2 2 2 2 2 * * * * * * *
* * *
2
3.3
6.2
Adjustment
* * * * 3
*
2
3
9
6.3
Replacement
1 1 1 1 1 1 1 2 1 1 1 1 1 1
1 2 2 2
*
8
Perform diagnosis steps in the order of the numbers shown in the table (do items with * as required).
: Focus on, for example, an SSB(Error Code) with many entries in the logging display and check and clean accordingly.
After all inspection items are complete, clear the log.
*1: If the maintenance part has an instruction to do so.
*2: Follow the instruction in
4.3 Replacing Main PCB assembly (CPS878) (1)
.
*3: Follow the instruction in
4.3 Replacing Main PCB assembly (CPS878) (2), (3), and (4)
.
*4: When you replace the CIS Unit assembly, clear the scanner lamp lighting time count to [00000000] st Step 2. When you do so, do not
get confused between the front and back sides.
