Canon NP6317 How to use

COPYRIGHT © 1999 CANON INC. CANON NP6317 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
REVISION 0
FY8-23B5-000
APR. 1999

COPYRIGHT © 1999 CANON INC. CANON NP6317 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
IMPORTANT
THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN,TO SERVE AS A SOURCE
OF REFERENCE FOR WORK INTHE FIELD.
SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY
FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER
PRINTED MATTER.
ANYQUESTIONSREGARDING INFORMATIONCONTAINEDHEREINSHOULDBE DIRECTED
TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN INFOR-
MATION NOT APPLICABLE TO CERTAIN AREAS.
COPYRIGHT © 1999 CANON INC.
Printed in Japan
Imprimé au Japon
Use of this manual should be strictly su-
pervised to avoid disclosure of confidential
information.
Prepared by
OFFICE IMAGING PRODUCTSTECHNICAL SUPPORT DIVISION
OFFICE IMAGING PRODUCTS QUALITY ASSURANCE CENTER
CANON INC.
5-1, Hakusan 7-chome,Toride-shi, Ibaraki 302-8501 Japan

i
CONTENTS
CHAPTER 1 MAINTENANCE AND INSPECTION
A. PERIODICALLY REPLACED
PARTS..........................................1-1
B. DURABLE PARTS........................1-2
C. BASIC PROCEDURE FOR
PERIODIC SERVICING...............1-3
D. PERIODIC SERVICING
SCHEDULE .................................1-4
E. BASIC IMAGE ADJUSTMENT
PROCEDURE ..............................1-5
F. POINTS TO CHECK FOR
PERIODIC MAINTENANCE ........1-6
CHAPTER 2 STANDARDS AND ADJUSTMENT
A. MECHANICAL .............................2-1 B. ELECTRICAL............................ 2-15
A. SENSORS, FUSES AND
LAMPS.........................................3-1
B. CLUTCHES, SOLENOIDS, FANS,
MOTORS AND HEATERS ...........3-2
CHAPTER 4 IMAGE TROUBLESHOOTING
C. SWITCHES, CIRCUIT BREAKERS,
COUNTERS, ETC........................3-3
D. PCBS. ..........................................3-4
A. INITIAL CHECK ...........................4-1
B. SAMPLES OF IMAGE FAULTS ...4-4
CHAPTER 5 OPERATION TROUBLESHOOTING
1
2
3
4
5
6
7
8
CHAPTER 3 FUNCTION AND ARRANGEMENT OF THE
ELECTRICAL PARTS
C. TROUBLESHOOTING OF IMAGE
FAULTS ........................................4-5
A TROUBLESHOOTING OF
MALFUNCTION ...........................5-1

ii
CHAPTER 6 TROUBLESHOOTING FEEDING PROBLEMS
CHAPTER 7 SERVICE MODE
CHAPTER 8 SELF DIAGNOSIS
APPENDIX
A. PAPER JAMS...............................6-1 B. INCORRECT PAPER FEED
OPERATION ................................6-5
A. Outline..........................................7-1
B. Using the Service Mode...............7-1 C. Guide to Service Mode ................7-2
A. GENERAL TIMING CHART ........ A-1
B. LIST OF SIGNALS/
ABBREVIATIONS ....................... A-3
C. GENERAL CURCUIT
DIAGRAM ................................... A-5
D. SOLVENTS AND OILS LIST....... A-7
E. SPECIFICATIONS ...................... A-8

CHAPTER 1 MAINTENANCE AND INSPECTION
1-1
CHAPTER 1 MAINTENANCE AND INSPECTION
A. PERIODICALLY REPLACED PARTS
To maintain the copier at its peak performance, the parts listed in the following chart must be
replaced periodically. Although the deterioration of a part may not be visible, it can seriously
hamper the performance of the copier if not replaced on schedule.
Parts should be replaced during the regular service visit that is closest to the end of the service
life of the part. as of March 1999
Table 1-1
Note:
The above values are estimates and are subject to change depending on future data.
1
Repacement
60,000
60,000
60,000
60,000
300,000
No.
1
2
3
4
5
Description
Ozone filter
Optical fan filter
Static charge eliminator
Transfer corona wire
Developing cylinder
spacer roller
Part No.
FF2-5595-00P
FA0-0339-00P
FF1-9438-070
FY3-0040-000
FS2-6019-000
Remarks
Or 1year
Quantity
1
1
1
AR
2

CHAPTER 1 MAINTENANCE AND INSPECTION
1-2
B. DURABLE PARTS
The values shown in the table below indicate the expected average life (number of copies) of
parts which may require replacement at least once during the warranty period due to deterioration
or damage but which can be simply replaced to restore the performance of the copier.
as of March 1999
Table 1-2
Note:
The above values are estimates and are subject to change depending on future data.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Remarks
Must be re-
placed at the
same time
Service life
(number of
copies)
30,000
100,000
100,000
100,000
100,000
200,000
200,000
200,000
200,000
200,000
90,000
90,000
100,000
100,000
Quantity
1
1
1
2
2
1
1
1
5
5
1
1
1
1
Part No.
FA5-1952-000
FC2-9799-00P
FH7-3114-000
FC2-9750-00P
FS1-1240-000
FG2-3009-00P
FC2-8962-00P
FC2-9774-00P
FB1-0301-000
FA2-9037-000
FB1-8581-000
FF3-3698-00P
FF3-2855-00P
FB3-4494-00P
Description
Oil-applying roller (fixing
assembly)
Scanner drive cable
Scanning lamp (scanner)
Paper pick-up roller
(pick-up assembly)
Upper fixing roller
bearing (fixing assembly)
Pre-exposure lamp
Upper fixing roller (fixing
assembly)
Lower fixing roller
(fixing assembly)
Upper separation claw
(fixing assembly)
Lower separation claw
(fixing assembly)
Multi feeder roller
Pad (multi feeder)
Thermistor assembly
Heat sink roller

CHAPTER 1 MAINTENANCE AND INSPECTION
1-3
C. BASIC PROCEDURE FOR PERIODIC SERVICING
Note:
i. Perform periodic servicing after every 15,000 copies, as a general rule.
ii. Before making a service call, check the service log and take along any replacement parts
that are likely to be needed:
Table 1-3
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Remarks
Standard: 2.0 ±1.5 mm
(DIRECT)
Standard: 10.0 ±2.0 mm
(DIRECT), front side
Dry wipe using lint-free paper;
then clean using alcohol.
Alcohol
Check
Condition of copier
Number of miscopies
a.Image density
b.Dirty background
c.Clarity of letters
d.Leading edge blank area
e.Left and right margins
f. Fixing, synchronizing, and
soiling of back
g.Unusual noise
h.Operation of counter
Procedure
Note the operator's comments.
Record the counter reading.
Make DIRECT and two-page
overlay test copies.
Clean the corona assemblies.
Clean separation feeder assem-
blies.
Clean fixing and delivery
assemblies.
• Paper guide plate
• Separation claws (upper and
lower)
Perform the periodic servicing
appropriate to the number of
copies. (See p. 6-4.)
Clean the copyboard cover and
the copyboard glass.
Check the amount of waste
toner.
Make test copies.
Make sample copies.
Select sample copies to keep for
the users record.
Clean up around the copier.
Record the final counter value.
Fill in the service sheet and
check out with the person in
charge.

CHAPTER 1 MAINTENANCE AND INSPECTION
1-4
D. PERIODIC SERVICING SCHEDULE
Note:
Do not use solvents or oils other than those specified.
: Clean : Replace : Lubricate : Adjust : Check
* Items to be cleaned every 15,000 copies or every 6 months, whichever comes first.
Table 1-4
Unit
External
Scanner drive
assembly
Feeder
Optical path
Corona assemblies
Developing assembly
Fixing assembly
Drum unit
Remarks
Clean with alcohol.
Replace yearly.
Clean with alcohol then
apply high vis cosity
lubricating oil (TKN-
0451).
Damp cloth
Clean with a blower
brush. If very dirty, clean
with alcohol.
Clean mirror 6 with the
mirror cleaning tool.
Dry wipe using lint-free
paper; then clean using
alcohol.
Damp cloth
Clean with alcohol.
Clean with cleaning oil.
Clean with MEK.
Every
30,000
copies
Every *
15,000
copies
Description
Copyboard glass
Ozone filter
Scanner rails
Transfer guide
Feeder belt
Feeder frame
Scanning lamp reflector
Scanning lamp side
reflector
Mirror 1 to 6
Lens
Dustproofing glass
Primary corona assembly
Primary corona wire
Transfer corona assem-
bly
Transfer corona wire
Static charge eliminator
Spacer rollers (front and
rear)
Upper fixing roller
Lower fixing roller
Paper guide plate
Separation claws
(upper and lower)
Lower face of drum unit
Periodic servicing

1-5
E. BASIC IMAGE ADJUSTMENT PROCEDURE
Figure 1-1
Pre-check Adjusting side-to side
density Adjusting the density
Clean the corona wires.
Make the following copies
(using test sheet NA-2 or
NB-3)
Copy density 5: 2 copies
Copy density 1: 1 copy
Check the following :
1. Differences in density
between the near and
far sides of the copies.
2. Density of gray scale
No. 10.
3. Fogging in blank areas.
Adjust Service mode ( ).
(See p. 2-1.)
Return copy density
to 5.
Replace the grid plate and
grid mounting panel.
Check for stains on the
scanning lamp, reflector
plate, and mirror; clean
them if necessary.
Is the top
margin of the copy
at copy density 1 within
the standard? Make one copy.
YES
NO
Replace the drum unit. Make one copy.
Mount the drum unit
and make one copy.
Is there a
difference in density
in the image area of a
reduced copy?
NO
NO
Is there a
difference in density
on the near and far sides
of the copies?
Is the
distance bet-
ween the primary
corona grid and the photo-
sensitive drum
correct?
NO
YES
YES
(Note 1)
YES
Turn the copy density knob
clockwise. (Note 2)
(The image will become
lighter.)
Turn the copy density knob
counterclockwise. (Note 3)
(The image will become
darker.)
Is the
density of gray
scale No. 10 too dark?
(See Note 3.)
YES
Is the
density of gray
scale No. 10 correct?
(See Note 3.)
NO
NO (See Note 4.)
YES End.
Image adjustment should be per-
formed using the following settings:
1. Manual (non AE) exposure
2. Density cursor setting : 5
3. DIRECT reproduction ratio
Adjust the image by the following
procedure when the photosen-
sitive drum has been replaced.
Make this adjustment with the
upper front panel and front door
installed.
Note 1 : The distance between the grid and
photosensitive drum is determined by
the spacer mounted on the grid.
Check for deterioration or damage to
the spacer.
This changes the developing bias, but
not the intensity of the scanning
lamp.
Note 2 :
No. 10 on the gray scale of a copy
should reproduce the density of No. 8
on the gray scale of the test sheet,
and no fogging in the background
should be visible.
Note 3 :
Turning the copy density knob clock-
wise too far past the proper position
will result in fogging in blank areas.
Note 4 :

1-6
F. POINTS TO CHECK FOR PERIODIC MAINTENANCE
Figure 1-2
Reflectors
Copyboard/Scanner
Mirrors 1, 2 and
3
Location
Copyboard glass
Blower brush
Blower brush or
alcohol and
lint-free paper
Tool/Cleaner
Alcohol
Cleaning
Clean with a
blower brush.
If dirt cannot be
removed with a
blower brush,
clean with
alcohol.
Action/Remarks
Cleaning
Upper fixing
roller, lower
fixing roller
Location
Separation claws
Paper guide plate
Heat sink roller Cleaning oil
(TKN-0464)
Cleaning oil
(TKN-0464)
Tool/Cleaner
MEK
Cleaning
Action/Remarks
Cleaning
MEK Cleaning
Cleaning
Fixing assembly and Paper pick-up assembly
Feeder belt
Feeder assembly
Location
Transter guide
Tool/Cleaner
Damp cloth
Action/Remarks
Cleaning
Separation and transfer assemblies
Primary corona
grid
Location
Developing
rollers
Primary corona
assembly
Transfer corona
assembly
Static charge
ellminator
Tool/Cleaner
Alcohol
Alcohol and lint-
free paper
Blower brush
Blower brush
Action/Remarks
Cleaning
Wipe with a dry
cloth; then, clean
with lint-free
paper moistened
with alcohol.
Cleaning
Corona assemblies
Location
Lens
Dust-proofing
glass
Mirror 4/5
carriage
Mirror 6
Tool/Cleaner
Blower brush or
alcohol and
lint-free paper
Mirror
creaning tool
Action/Remarks
Clean with a
blower brush.
If dirt cannot be
removed with a
blower brush,
clean with
alcohol.
Cleaning
Optical path