SERVICE
HANDBOOK
REVISION 0
FY8-23AV-000
JAN.1998
COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
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CONTENTS
D. Notes on Cartridge.......................1-2
Cartridges ...............................1-3
.....................................................1-5
A. Mechanical...................................2-1
1. Image Leading Edge Non-Image
Width (position of white paint on
2. Image Leading Edge Margin
(point of detection for registration)
................................................2-1
B. Electrical ......................................2-2
1. Adjusting the Intensity (VR604)
................................................2-2
(VR602, VR603) .....................2-4
A. Making Initial Checks...................3-1
1. Site Environment ....................3-1
2. Checking the Documents........3-1
3. Checking the Copyboard Cover
and Copyboard Glass for Dirt
3. The copy is too light (extremely
light overall). ...........................3-7
4. The copy has uneven density
(darker at front).......................3-8
5. The copy has uneven density
(lighter at front). ......................3-8
6. The copy is foggy (overall)......3-8
7. The copy is foggy (paper feed
direction).................................3-9
8. The copy has dark lines (paper
9. The copy has dark lines (paper
feed direction, thin). ................3-9
10. The copy has white spots (paper
feed direction).........................3-9
11. The copy has white lines (paper
feed direction).........................3-9
12. The copy has white spots (cross
feed direction).......................3-10
13. The back of the copy is soiled.
..............................................3-10
and Scratches.........................3-2
4. Checking the Lens Array for Dirt
5. Checking the Transfer Charging
Roller ......................................3-2
6. Checking the Feeding Assembly
................................................3-2
7. Checking the Copy Paper.......3-2
8. Checking the Durables ...........3-2
9. Others.....................................3-4
C. Troubleshooting by Image Fault
.....................................................3-7
1. The copy is too light (halftone
2. The copy is too light (dark areas
as well)....................................3-7
i
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14. The copy has faulty fixing......3-11
15. The copy has faulty leading
edge registration (blank area
much too wide)......................3-11
edge registration (blank area too
wide)......................................3-11
17. The copy has faulty leading
edge registration (no blank area)
..............................................3-11
18. The copy has a blurred image.
..............................................3-12
19. The copy is foggy (cross feed
direction)...............................3-12
(focus)...................................3-12
21. The copy is blank..................3-13
22. The copy is solid black..........3-13
A. Troubleshooting Malfunctions......4-1
9. The main motor fails to rotate.
................................................4-5
10. The copyboard fails to move.
................................................4-5
1.
(self diagnosis;PC400/FC200)
......................................4-1
2. E0 ...........................................4-1
3. E2 ...........................................4-2
5. E9 ...........................................4-3
6. AC power is absent.................4-3
7. Pick-up fails. ...........................4-4
8. The scanning lamp fails to go
ON. .........................................4-4
11.
(paper feeding normally) ....4-6
13. The fixing heater fails to operate
................................................4-6
A. Copy Paper Jams ........................5-1
1. Pick-Up Assembly...................5-2
3. Fixing/Delivery Assembly
B. Feeding Faults .............................5-4
1. Double Feeding ......................5-4
2. Wrinkles ..................................5-4
................................................5-3
.....................................................6-3
E. Variable Resistors (VR) and Check
Pins by PCB.................................6-5
PCB ........................................6-5
2. Control Panel PCB..................6-6
ii
COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
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B. Signals/Abbreviations List ............A-3
2. Abbreviations..........................A-4
iii
COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
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iv
COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
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CHAPTER 1 MAINTENANCE AND INSPECTION
1
CHAPTER 1 MAINTENANCE AND INSPECTION
A. Periodically Replaced Parts
The machine does not have parts which must be replaced on a periodical basis.
B. Durables
The machine does not have parts which are classified as durables.
C. Periodical Servicing
The machine does not have parts that require periodical servicing.
1-1
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CHAPTER 1 MAINTENANCE AND INSPECTION
D. Notes on Cartridge
The cartridge is affected by the environment, regardless of whether it is sealed or
unsealed and installed in the machine or otherwise. Although the properties of the
cartridge change over time independent of how many copies have been made, the
degree of care taken for the cartridge affects how long it may remain stable.
1. Storing Sealed Cartridges
When storing the cartridge in a warehouse or workshop, make sure the place is
controlled to the specifications shown in Table 1-1D.
a. Avoid direct rays of the sun.
b. Avoid areas subjected to appreciable vibration.
c. Do not drop or subject it to impact.
Normal
(9/10 of period)
0° to 35°C/
32° to 95°F
Severe (1/10 High 35° to 40°C/
of period)
95° to 104°F
Low -20° to 0°C/
-4° to 32°F
Temperature fluctuations
(within about 3 min)
40° ➝ 15°C/
104° ➝ 59°F
-20°C ➝ 25°C/
-4°F ➝ 77°F
Normal
35 to 85%RH
(9/10 of period)
Severe (1/10 High 85 to 95%RH
of period)
Low 10 to 35%RH
Atmospheric pressure
460 to 760 mmHg
(0.1 to 1 atm)
Table 1-1D Temperature/Humidity Specifications
Temperature
Humidity
-20° to 40°C/-4° to 104°F
90% or less
Table 1-2D Transportation
1-2
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CHAPTER 1 MAINTENANCE AND INSPECTION
2. Storing and Handling Unsealed Cartridges
The photosensitive medium is an organic photoconductor (OPC), which is extremely
susceptible to light. Since the cartridge also contains toner, you must be extra careful
when storing or handling the cartridge. Make sure the user is aware of this fact and will
handle the cartridge with care.
a. Storing Unsealed Cartridges
1) Avoid areas subjected to strong rays of the sun. Do not keep it in a car even in a
protective box; the inside may become extremely hot.
2) Avoid areas of high or low temperature/ humidity and areas where these elements
tend to change rapidly (for example, near air conditioners or heaters).
3) Avoid areas where dust, ammonium gas, or gases from organic solvents tend to
accumulate.
4) Keep the cartridge in a place 40°C or less.
b. Handling the Cartridge
1) Before inserting the cartridge in the copier or if the toner starts to run short, hold the
cartridge horizontally as shown in Figure 1-1, and rotate it in both directions about
90° to even out the toner inside it. Do not shake the cartridge or hold it in a different
way; otherwise, toner may leak out the cartridge.
Figure 1-1D
1-3
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CHAPTER 1 MAINTENANCE AND INSPECTION
2) Do not place the cartridge upright or upside down; do not shake it.
Figure 1-2D
3) Do not force open the shutter for the photosensitive drum cover found at the bottom
of the cartridge; do not touch the surface of the photosensitive drum.
If the surface of the photosensitive drum has become soiled, wipe it using a flannel
cloth coated with toner. Do not dry wipe it or use solvent.
4) Do not disassemble the cartridge.
5) Do not subject the cartridge to vibration or impact; in particular, do not force down
the photosensitive drum from above the shutter for the drum cover.
6) Keep the cartridge out of reach of children.
7) The photosensitive drum is susceptible to light and, therefore, equipped with a light-
blocking shutter; nevertheless, exposure to light for a long time can affect the drum,
resulting in copies with white spots or vertical lines. Leave the copier alone for
some time for possible recovery; to avoid residual memory, which results in white
spots or vertical lines, however, keep the following in mind.
Caution:
Work quickly when removing jams or replacing cartridges.
When the cartridge must be removed for work, be sure to put the cartridge in its
storage box or cover it; do not leave it without protective measures once it is
outside the copier.
Reference:
The drum would recover to more or less its normal condition if left alone for five
minutes in a dark place after exposure to an intensity of 1500 lux (about 5 minutes
under general lighting). However, you must try to avoid any exposure. (The rays
of the sun have intensities ranging between about 10000 and 30000 lux.)
1-4
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E. Image Adjustment Basic Procedure
<Pre-Checks>
<Optimum Density Adjustment>
Clean the parts.
Scanning system, pick-up/feeding
system, and delivery assembly.
Is gray
scale No. 9 barely noted?
(See Note 2.)
YES
YES
YES
End.
Is the
setting of the density
correction switch at the
middle?
NO
NO
Is the
YES
Set the switch to the
middle.
problem corrected by
the density correction
switch?
NO
Is
optimum
density obtained by
adjusting the intensity of
light?
Select non-AE, and set the density control dial/lever
to 5.5; then, make two to three copies of the Test
Chart (NB-3, NA-2, NA-3); see Note 1.
End.
(See
NO
Check the following:
Notes:
1. Density of gray scale No. 9; see Note 2.
2. Difference in density between front and rear; see
Note 3.
3. Density of gray scale No. 1; see Note 3.
4. Fogging in white area; see Note 3.
1. If a mono color cartridge is used, set the
density control dial to 4.5.
Check the following:
1. Cartridge.
2. Scanning lamp unit.
3. DC controller/DC power supply PCB
(see “Troubleshooting by Image
Fault”).
2. If NB3 is used, refer to gray scale No. 10.
3. The machine is not equipped with an
adjustment function for each type of image
fault; see “Troubleshooting by Image Fault.”
4. For instructions on how to adjust the
intensity of light, see p. 2-2.
1-5
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F. Points to Note
Copyboard
Parts
Optical assembly
Parts
Tools/Solve
alcohol
Remarks
Tools/Solve
Remarks
Copyboard
cover
Lens array
Cotton wad Do not use the wire
cleaner meant for
conventional
Copyboard
glass
alcohol
alcohol
machines.
Scanning lamp Blower
brush
White
reflecting strip
Dirt can soil the
leading edge
margin, causing
jams.
Electrical
Parts
Tools/Solve
Remarks
Cleaning
Intensity/AE
sensor
Blower
brush
Cartridge, Transfer charging roller
Parts Tools/Solve
Remarks
Photosensitive Toner
drum
As a rule, do not
clean.
Do not use solvents.
Do not touch the
drum. Avoid light.
Drum cover
shutter
Well-wrung Be sure to clean the
moist cloth shutter; particles of
toner can cause
soiled copies.
Transfer
Lint-free
Cleaning
charging roller paper
Do not use water or
solvent. Take care
not to touch the
roller or leave oil.
Fixing assembly
Parts
Tools/Solve
Solvent
Remarks
Inlet guide
Pick-up roller assembly
Parts
Tools/Solve
Remarks
Pick-up roller
Well-wrung Cleaning
moist cloth;
or, alcohol
Registration assembly
Parts
Tools/Solve
Well-wrung Cleaning
moist cloth
Remarks
Registration
roller
1-6
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
CHAPTER 2 STANDARDS AND ADJUSTMENTS
A. Mechanical
2
1. Image Leading Edge Non-Image Width (position of white paint on back of
glass)
The leading edge non-image width must be 2.0 ±1.0 mm when the Test Sheet is
copied.
2.0 ± 1.0 [mm]
Figure 2-1A
The leading edge non-image width is determined by the position of the white paint
found behind the copyboard glass.
Size index
Copyboard glass
2mm
White paint
Figure 2-2A
2. Image Leading Edge Margin (point of detection for registration)
The leading edge margin must be 0.2 to 5.0 mm when the Test Sheet is copied.
To adjust, move the position of the registration cam.
0.2 to 5.0 [mm]
Figure 2-3A
2-1
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
B. Electrical
Notes:
If you have replaced the scanning lamp unit, intensity sensor, AE sensor, or control
panel PCB, you must adjust the three variable resistors on the control panel PCB
(one, if PC400/FC200); you must, however, adjust them in the order of VR604,
VR602, and VR603 (from intensity to AE).
1. Adjusting the Intensity (VR604)
a. After Replacing the Control Panel PCB Only
1) Disconnect the power plug, and detach the faulty control panel PCB.
2) Set the meter to the ‘200 k ’ range, and measure C between the terminal of VR604
and the terminal of R614 on the detached control panel PCB; see Figure 2-1B.
3) Likewise, measure C between the terminal of VR604 and the terminal of R614 on
the new control PCB; then, turn VR604 so that the reading is the same as the
measurement taken in step 2).
4) In the case of the PC420/430/FC220, adjust VR602 (A between terminals of VR602
and JP607) and VR603 (Between terminals of VR603 and JP621); see Figure 2-1B.
5) Attach the new control panel PCB to the copier.
B (VR603)
A (VR602)
C (VR604) Control panel PCB
C (R614)
B (JP621)
A (JP607)
Figure 2-1B (PC420/430/FC220)
2-2
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
C (VR604)
Control panel PCB
C (R614)
Figure 2-2B (PC400/FC200)
b. After Replacing the Scanning Lamp Unit, Intensity Sensor, or AE Sensor
(Before Adjustment)
• If the scanning lamp has blackened, replace it.
• Clean the scanning system (lens array, lamp reflector, lamp).
1) Set the cartridge to the copier.
2) De-select AE, and set the copy density control lever/dial to the center.
3) Set the density correction switch (SW606) to the center (PC420/430/FC220).
4) Set the Test Sheet (NA3/NB3/NA2), and make a copy.
5) Check if the copy is free of fogging, and gray scale No. 9 (No. 10, if NB3) is
somewhat visible.
• If too dark,
Turn VR604 on the control panel PCB clockwise slightly to increase the intensity.
• If too light,
Turn VR604 counterclockwise slightly to decrease the intensity.
6) Repeat steps 4) and 5) until the density is optimum.
Notes:
After adjusting the intensity, be sure to adjust the AE mechanism
(PC420/430/FC220).
2-3
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
2. Adjusting the AE Mechanism (VR602, VR603)
(Before Adjustment)
• Obtain a newspaper whose text consists of fine print; do not use a section with
photos or large characters.
• Make sure you have adjusted light intensity.
1) Switch the copier OFF.
2) Detach the control panel cover.
3) Turn VR602 and VR603 on the control panel PCB fully clockwise.
4) Place a newspaper over the AE light-receiving section of the copyboard, and close
the copyboard cover.
AE light-receiving section
Figure 2-3B
5) Short the three jumper wires (JP604, JP605, JP607) on the control panel PCB at the
same time using a screwdriver.
Caution:
Take adequate care not to short wires other than those specified.
2-4
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
JP607
JP605
JP604
Control panel PCB
Screwdriver
Figure 2-4B
6) While keeping the condition in step 5), switch the copier ON.
• ‘0’ is displayed, the scanning lamp goes ON, and the main motor starts to rotate.
7) Stop shorting the jumper wires.
8) Set the digital multimeter to the 20V DC range, and turn VR602 (AE offset
adjustment) until the voltage between the anode side of the diode (D606; +) and
JP607 (GND) is 4.0 ±0.1 V.
Notes:
You must use a Digital Multimeter when making adjustments in steps 8) and 10).
JP607
VR602 VR603
D606 (anode side)
Control panel PCB
Figure 2-5B
2-5
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CHAPTER 2 STANDARDS AND ADJUSTMENTS
9) Place about five sheets of blank copy paper.
10) Turn VR603 (AE gain adjustment) until the voltage between the anode side of the
diode (D606; it) and JP607 (GND) is 1.8 ±0.1 V; see Figure 2-5B.
11) Switch the copier OFF.
Notes:
Make sure that the jumping wires are no longer shorted.
12) Switch the copier ON once again.
13) Set the density correction switch (SW606) to the center (of the three settings).
14) Make sure that the AE indicator is ON.
15) Set the newspaper used in step 4) on the copyboard once again; this time, move the
newspaper to a different area.
16) Make a copy, and make sure that it is not foggy and has adequate text density.
• If foggy,
Turn VR602 clockwise slightly.
• If text density is low,
Turn VR602 counterclockwise slightly.
17) Repeat steps 15) and 16) until the density is optimum.
2-6
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CHAPTER 3 IMAGE TROUBLESHOOTING
CHAPTER 3 IMAGE TROUBLESHOOTING
A. Making Initial Checks
1. Site Environment
a. The voltage of the power source must be within the specifications.
b. Avoid areas subjected to dust or high temperature/humidity (near water faucets,
water boilers, humidifiers) and areas near open fires.
c. Avoid areas subjected to ammonium gas.
d. Avoid direct rays of the sun; otherwise, provide curtains.
e. Make sure the site is well ventilated.
f. Make sure the floor is level.
3
Check the site to see if it meets the above requirements.
2. Checking the Documents
You must first check to see if a particular problem may not be due to the document
used.
a. The copy density reading should be 5.5 ±1.5 (black)/4.5 ±1.5 (color).
b. Some backgrounds, i.e., yellow shades, tend to produce copies with poor
contrast.
c. Diazo copies or translucent documents tend to produce copies that may be
mistaken for foggy copies.
d. Documents prepared in light pencil tend to produce copies that may be mistaken
for light copies.
3-1
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CHAPTER 3 IMAGE TROUBLESHOOTING
3. Checking the Copyboard Cover and Copyboard Glass for Dirt and Scratches
If dirt is found, clean it using mild detergent or alcohol; if scratches are found,
replace it.
4. Checking the Lens Array for Dirt
Check the lens array for dirt. If found, clean it using a cotton wad.
5. Checking the Transfer Charging Roller
Check the transfer charging roller for scratches or other abnormalities.
6. Checking the Feeding Assembly
Check the feeding assembly for dirt. If dirt is found, clean it with a moist cloth.
7. Checking the Copy Paper
a. Check to see if paper of a type recommended by Canon is used.
b. Check to make sure that the paper is not moist. Try paper fresh out of package.
8. Checking the Durables
Checking the Cartridge
White spots or vertical white lines tend to appear when the cartridge starts to run
short of toner; see Figure 10-301A.
Figure 3-1A
3-2
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CHAPTER 3 IMAGE TROUBLESHOOTING
Go over the following when this is noted.
1) Take out the cartridge from the copier, and rotate it several times.
Figure 3-2A
2) Set the cartridge back into the copier, and make copies.
a. If the copies are normal,
• The user may use the cartridge for some time more; however, advise the user to
procure a replacement cartridge.
b. If the copies fail to return to normal,
• Replace the cartridge as described in “Replacing the Cartridge.”
3-3
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CHAPTER 3 IMAGE TROUBLESHOOTING
9. Others
In winter, moving a machine from a cold storage room to a warm site can cause
condensation inside the machine, leading to various problems.
a. Condensation on the scanning system (glass, lens array, reflecting plate) causes
dark images.
b. When too cold, the photosensitive drum assumes a high electrical resistance,
resulting in poor contrast.
c. Condensation in the pick-up/feeding assembly can cause faulty paper transport.
d. Condensation in the lower roller of the manual pick-up mechanism decreases
friction, leading to pick-up failure.
e. Condensation on the copyboard hinders its smooth movement.
When condensation is noted, dry wipe the parts.
The same holds true of the cartridge. After having moved the cartridge from a cold
to warm room, leave it alone for about one to two hours before unpacking it.
3-4
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CHAPTER 3 IMAGE TROUBLESHOOTING
3-5
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CHAPTER 3 IMAGE TROUBLESHOOTING
B. Samples of Image Faults
not available
3-6
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CHAPTER 3 IMAGE TROUBLESHOOTING
C. Troubleshooting by Image Fault
1. The copy is too light (halftone areas only).
2. The copy is too light (dark areas as well).
3. The copy is too light (extremely light overall).
Cause
Step
1
Checks
YES/NO
YES End.
Remedies
Lens, Reflecting plate,
Intensity sensor
Clean the lens, reflecting plate,
and intensity sensor.
Is the problem corrected?
2
Press the Copy Start key, and
switch the copier OFF in the
middle of operation; then, open
the top cover.
NO
Go to step 5.
Is the toner image on the pho-
tosensitive drum more or less
normal before transfer?
Be sure to check quickly to
protect the drum against light.
Transfer charging
roller
3
4
Is the transfer charging roller
normal?
NO
1. Re-attach the charging
roller.
2. Replace the charging
roller.
Copy paper
Try paper fresh out of package.
Is the copy density higher?
YES
1. The paper may be
moist; advise the user
on the correct method
of storage.
2. Advise the user that the
use of non-recom-
mended paper may not
bring about the best
results.
Cartridge
5
Replace the cartridge.
Is the problem corrected?
YES
NO
End.
DC controller/DC
power supply PCB
Replace the DC controller/
DC power supply PCB.
3-7
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CHAPTER 3 IMAGE TROUBLESHOOTING
4. The copy has uneven density (darker at front).
5. The copy has uneven density (lighter at front).
Cause
Step
1
Checks
YES/NO
YES End.
Remedies
Scanner
Clean the scanning lamp,
reflecting plate, and lens.
Is the problem corrected?
Cartridge, Scanning
lamp
2
Press the Copy Start key, and
switch the copier OFF in the
middle of operation; then, open
the top cover.
Does the toner image on the
photosensitive drum before
transfer have uneven density?
YES
NO
1. Replace the cartridge.
2. Replace the scanning
lamp unit.
Transfer charging roller
Check the transfer charg-
ing roller.
6. The copy is foggy (overall).
Cause
Step
1
Checks
YES/NO
YES
Remedies
End.
Scanner
Clean the scanning lamp,
reflecting plate, and lens.
Is the problem corrected?
Scanning lamp,
Developing bias
2
Is continuity present between
photosensitive drum PCB and
grounding spring?
YES
NO
1. Check if the scanning
lamp goes ON normally.
2. Check the developing
bias.
Grounding spring
Check to make sure if the
grounding spring is prop-
erly attached in front of the
cartridge.
3-8
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CHAPTER 3 IMAGE TROUBLESHOOTING
7. The copy is foggy (paper feed direction).
8. The copy has dark lines (paper feed direction, relatively narrow).
9. The copy has dark lines (paper feed direction, thin).
Cause
Step
1
Checks
YES/NO
YES
Remedies
Scanner
Clean the scanning lamp,
reflecting plate, and lens.
Is the problem corrected?
End.
Cartridge
2
Take out the cartridge, and put it
back in.
Is the problem corrected?
YES
NO
End.
Replace the cartridge.
10. The copy has white spots (paper feed direction).
11. The copy has white lines (paper feed direction).
Cause
Step
1
Checks
YES/NO
NO
Remedies
Fixing assembly
Press the Copy Start key, and
switch the copier OFF in the
middle of operation; then, open
the top cover.
Check the fixing assembly.
Does the copy image have white
spots or white lines before
fixing?
Cartridge
2
3
Rotate the cartridge several
times.
Is the problem corrected?
YES
YES
NO
Advise the user that the
cartridge is running short
of toner.
Transfer charging roller
Cartridge
Is there foreign matter or
scratches on the transfer
charging roller?
Remove the foreign
matter, or replace the
transfer charging roller.
Replace the cartridge.
3-9
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CHAPTER 3 IMAGE TROUBLESHOOTING
12. The copy has white spots (cross feed direction).
Cause
Copy paper
Step
1
Checks
YES/NO
NO
Remedies
Is the copy paper of a type rec-
ommended by Canon?
Try recommended paper;
if the results are good,
advise the user to use
recommended paper.
2
3
Try copy paper fresh out of
package.
Is the problem corrected?
YES
The copy paper may be
moist; advise the user to
store it wrapped.
Is the problem noted at the same
position on all copies?
YES
NO
Check the copyboard rail
for foreign matter.
Copyboard rail
Check the scanning lamp
for flickering, and check
the presence/absence of a
developing bias.
Scanning lamp,
Developing bias
13. The back of the copy is soiled.
Cause
Step
1
Checks
YES/NO
NO
Remedies
Press the Copy Start key, and
switch the copier OFF while the
copy paper is moving through
the feeding assembly.
Go to step 3.
Is the back of the copy soiled?
Transfer charging
assembly
2
Is the transfer charging assem-
bly soiled?
YES
1. Clean the transfer
charging assembly.
2. Clean the registration
roller.
3. Clean the pick-up guide
plate.
4. Check the cartridge for
leakage of toner.
Feeding assembly
Delivery roller
3
Is the feeding assembly soiled?
YES
NO
Clean the feeding
assembly.
Clean the delivery roller.
3-10
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CHAPTER 3 IMAGE TROUBLESHOOTING
14. The copy has faulty fixing.
Cause
Copy paper
Step
1
Checks
YES/NO
NO
Remedies
Is the copy paper of a type rec-
ommended by Canon?
Try paper of a recom-
mended type; if the
results are good, advise
the user to use recom-
mended paper.
Fixing film
2
3
Is the faulty fixing vertical and in
the form of lines?
YES
YES
NO
Check the fixing film and
pressure roller for
scratches. If scratches
are found, replace the
fixing unit or roller.
DC controller/DC
power supply PCB
Is the heater turned ON for
control after copy operation is
started?
The control temperature
for the fixing heater may
be low; check the ther-
mistor and DC controller/
DC power supply PCB.
Fixing heater
See “The fixing heater fails
to operate.”
15. The copy has faulty leading edge registration (blank area much too wide).
16. The copy has faulty leading edge registration (blank area too wide).
17. The copy has faulty leading edge registration (no blank area).
Cause
Step
1
Checks
YES/NO
YES
Remedies
Registration cam
Move the registration cam on the
copyboard left and right.
Is there any change to the reg-
istration?
Adjust the position of the
registration cam.
Solenoid (SL1),
DC controller/DC
power supply PCB
2
3
Is the solenoid for registration
(SL1) operating normally?
NO
1. Check the solenoid
(SL1).
2. Check the DC con-
troller/DC power supply
PCB.
Pick-up roller
Copy paper
Is the copy paper of a type
recommended by Canon?
YES
NO
Check the pick-up roller.
Try copy paper of a type
recommended by Canon;
if the results are good,
advise the user to use
recommended paper.
3-11
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CHAPTER 3 IMAGE TROUBLESHOOTING
18. The copy has a blurred image.
Cause
Step
1
Checks
YES/NO
NO
Remedies
Copyboard rail
Is the movement of the copy-
board rail smooth?
Replace the copyboard
rail.
Copyboard drive
assembly
2
Is the movement of the copy-
board normal?
NO
Check the copyboard drive
assembly; if a fault is
found, replace the part.
Main motor assembly
Feeding assembly
3
4
Is the main motor assembly
normal?
NO
Replace the main motor
assembly.
Does the copy paper stop or
jump near the transfer assem-
bly?
YES
Remove the foreign matter
or burrs from the feeding
system.
Cartridge
NO
Replace the cartridge.
19. The copy is foggy (cross feed direction).
Cause
Step
1
Checks
YES/NO
YES
Remedies
Scanning lamp
Does the scanning lamp flicker?
Replace the scanning
lamp unit.
Cartridge
2
Replace the cartridge.
Is the problem corrected?
YES
NO
End.
High-voltage
transformer
Check the high-voltage
transformer (DC controller/
DC power supply PCB).
20. The copy has poor sharpness (focus).
Cause
Step
1
Checks
YES/NO
YES
Remedies
Does the copy have an image
which is too light at the same
time?
Correct the light image
first.
Document
2
Is there a gap between the
document and the copyboard
glass?
YES
• Check the copyboard
glass to make sure it is
not warped.
• Advise the user how to
place documents cor-
rectly.
Lens
3
4
Is the lens off contact?
YES
Push the lens into place
while taking great care not
to scratch it.
Scanner
Clean the scanning lamp,
reflecting plate, and lens.
Is the problem corrected?
YES
NO
End.
Cartridge
Replace the cartridge.
3-12
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CHAPTER 3 IMAGE TROUBLESHOOTING
21. The copy is blank.
Cause
Cartridge
Step
Checks
YES/NO
NO
Remedies
1
Is the cartridge set in the copier?
Set the cartridge in the
copier.
2
3
Does the cartridge have toner?
NO
NO
Replace the cartridge.
Remove the seal.
Has the seal been removed from
the cartridge?
4
Set the cartridge in the copier,
and close the copier.
Does the drum cover shutter
open without fail?
NO
Make adjustments so that
the shutter opens
smoothly.
5
6
Is the drum drive gear rotating
normally?
NO
Check the drum drive
assembly.
Drum drive assembly
High-voltage
transformer
Are the primary charging
terminal at the front left of the
cartridge and the high-voltage
terminal at the bottom of the
copier in firm contact?
YES
Check the high-voltage
transformer (DC controller/
DC power supply PCB).
Terminals for primary
charging,
Cartridge
NO
1. Check the contact for
electrical continuity.
2. Try replacing the
cartridge.
22. The copy is solid black.
Cause
Step
1
Checks
YES/NO
YES
Remedies
Is the scanning lamp ON during
copying operation?
Check if the cartridge is
set properly.
NO
See “The scanning lamp
fails to go ON.”
3-13
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CHAPTER 3 IMAGE TROUBLESHOOTING
3-14
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
A. Troubleshooting Malfunctions
1.
(self diagnosis; PC400/FC200)
Cause
Step
1
Checks
YES/NO
YES
Remedies
See ‘E00’.
Switch the copier ON.
Does the Jam indicator remain
On for about 0.5 sec, and does
the copier go OFF automatically
thereafter?
NO
See the discussions on
‘E2’, ‘E6’, and ‘E9’.
2. E0
4
Cause
Step
1
Checks
YES/NO
NO
Remedies
Thermistor (TH1)
Set the meter to the ‘12VDC’
range, and wait until the fixing
heater is sufficiently cool.
Measure the voltage between
J603-1 (+) and J603-2 (-).
Is it about 3.2 V or more?
Check the wiring from the
DC controller/DC power
supply PCB to the ther-
mistor (TH1); if normal,
replace the fixing assem-
bly.
2
3
Does the fixing heater operate
normally?
NO
YES
NO
See “The fixing heater fails
to operate.”
DC controller/DC
power supply PCB
Switch the copier ON, and make
a copy.
Measure the voltage between
J603-1 and J603-2 once again.
Is the voltage lower than that
measured in step 1?
Replace the DC controller/
DC power supply PCB.
Fixing assembly
Check the wiring from the
DC controller/DC power
supply PCB to the ther-
mistor (TH1); if normal,
replace the fixing assem-
bly.
4-1
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
3. E2
Cause
Step
1
Checks
YES/NO
YES
Remedies
Copyboard
Does the copying operation start
with the copyboard at the left or
right?
Check the operation with
the copyboard moved to
the center; advise the user
that this is not the copier’s
problem
2
3
Does the copyboard move in
reverse? In addition, does it
move in reverse far too slowly?
NO
See “The copyboard fails
to move.”
DC controller/DC
power supply PCB
Does the copyboard move in
reverse after copying operation
has started and move forward
after it has reached the copy-
board start position?
YES
NO
Replace the DC con-
troller/DC power supply
PCB.
Copyboard drive
assembly,
Copyboard glass
assembly
1. Check the copyboard
position sensor (Q902).
2. Try replacing the copy-
board drive assembly.
3. Check the start position
cam and reversal cam
in the copyboard glass
assembly.
4. E6
Cause
Step
1
Checks
YES/NO
YES
Remedies
End.
Replace the control panel PCB.
Is the problem corrected?
Control panel PCB
DC controller/DC
power supply PCB
NO
Check the harness from
the control panel PCB to
the DC controller/DC
power supply PCB; if
normal, replace/DC power
supply PCB.
4-2
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
5. E9
Cause
Step
1
Checks
YES/NO
YES End.
Remedies
DC controller/
DC power supply PCB
Replace the DC controller/DC
power supply PCB.
Is the problem corrected?
Power supply
NO
Advise the user that the
frequency of the power
supply is faulty.
6. AC power is absent.
Cause
Power plug
Step
1
Checks
YES/NO
NO
Remedies
Is the power plug connected to
the copier and the power outlet?
Connect the power plug.
2
Is ‘E’ code (PC420/430/FC220)
or ‘JAM’ (PC400/FC200)
indicated for about 0.5 sec after
the power switch is turned ON
and does the power turn OFF
thereafter?
YES
See ‘E0’.
Top cover,
Delivery assembly
cover
3
4
Are the top cover and delivery
assembly cover closed properly?
NO
NO
Close the top cover and
delivery assembly cover.
Power supply voltage
Is the rated voltage present at
the power outlet?
Advise the user that the
problem is not of the
copier.
Door switch
5
6
Is the door switch (SW1,SW2)
normal?
NO
Replace the door switch.
DC controller/
DC power supply PCB
Is the rated power supply voltage
present between J103 and J104
on the DC controller/DC power
supply PCB? (Set the meter to
the 300V AC range).
YES
Replace the DC controller/
DC power supply PCB.
Fixing assembly
7
Replace the fixing assembly.
Is the problem corrected?
(fixing heater error temperature
detection circuit ON)
YES
NO
End.
Replace the DC controller/
DC power supply PCB.
4-3
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
7. Pick-up fails.
Cause
Step
1
Checks
YES/NO
YES
Remedies
Move the copyboard to the left
until it stops, and open the top
cover. Does the pick-up roller
rotate when the door switch is
turned ON and the Copy Start
key is pressed at the correct
pick-up timing?
See “Pick-Up Assembly” in
“Troubleshooting Feeding
Faults.”
Main motor (M1)
2
3
Is the main motor rotating?
NO
See “The main motor fails
to rotate.”
Pick-up sensor (Q131)
Does the copier operate nor-
mally when the pick-up sensor
(Q131) is blocked with paper?
YES
Check the sensor lever.
Pick-up solenoid (SL1;
PC420/430/FC220),
Registration solenoid
(SL1; PC400/FC200)
4
Set the meter to the ‘30VDC’
range. Does the voltage
between J201-6 (+) and J201-7
(-) on the DC controller/DC
power supply PCB change to
about 24 V at pick-up timing?
YES
NO
Check the spring clutch in
the registration assembly
and pick-up assembly; if
normal, replace the
solenoid.
DC controller/
DC power supply PCB
Check the wiring from the
solenoid to the DC con-
troller/DC power supply
PCB; if normal, replace
the DC controller/DC
power supply PCB.
8. The scanning lamp fails to go ON.
Cause
Step
1
Checks
YES/NO
NO
Remedies
Scanning lamp
(LA1-LA8)
Is the scanning lamp unit
attached correctly?
Re-attach the lamp unit.
Scanning lamp
(LA1-LA8)
2
3
Is the scanning lamp black?
YES
YES
NO
Replace the scanning
lamp unit.
DC controller/DC
power supply PCB
Is the connector of the scanning
lamp connected firmly?
Replace the DC controller/
DC power supply PCB.
Connector
Re-connect the connector.
4-4
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
9. The main motor fails to rotate.
Cause
Step
1
Checks
YES/NO
YES
Remedies
Main motor (M1)
Set the meter to the ‘30VDC’
range. Does the voltage
between J903-1 (+) and J903-2
change from about 0 V to about
20 V according to the operation
of the main motor?
Replace the main motor.
DC controller/DC
power supply PCB
NO
Check the wiring from the
motor to the DC controller/
DC power supply PCB; if
normal, replace the DC
controller/DC power
supply PCB.
10. The copyboard fails to move.
Cause
Step
1
Checks
YES/NO
NO
Remedies
Main motor (M1)
Is the main motor rotating?
See “The main motor fails
to rotate.”
Copyboard,
Copyboard drive
assembly
2
3
Push the copyboard by hand.
Does it move smoothly?
NO
Check the copyboard and
copyboard drive assembly.
DC controller/DC
power supply PCB
Set the meter to the ‘200Ω’
range. Disconnect J902 from
the copyboard drive solenoid,
and measure the resistance
between terminals of SL2.
Is it about 120Ω?
YES
Check the wiring from the
solenoid to the DC con-
troller/DC power supply
PCB; if normal, replace
the DC controller/DC
power supply PCB.
Copyboard drive
solenoid (SL2)
NO
Check the solenoid (SL2).
4-5
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CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
11.
(paper feeding normally)
Cause
Step
1
Checks
YES/NO
YES
Remedies
Copy paper
Sensor lever
Are there pieces of copy paper in
the delivery assembly or pick-up
assembly?
Remove the pieces of
paper.
2
3
Is the movement of the delivery
sensor and pick-up sensor levers
smooth?
NO
Correct the movement.
End.
Delivery sensor PCB
(Q801)
Replace the delivery sensor
PCB. Does the copier operate
normally?
YES
NO
DC controller/DC
power supply PCB
Check the wiring from the
control panel PCB to the
DC controller/DC power
supply PCB; if normal,
replace the DC
controller/DC power
supply PCB.
12.
(at time of jam)
Cause
Step
1
Checks
YES/NO
YES
Remedies
End.
Control panel PCB
Replace the control panel PCB.
Does the indicator go ON?
DC controller/DC
power supply PCB
NO
Replace the DC controller/
DC power supply PCB.
13. The fixing heater fails to operate.
Cause
Heater (H1),
Step
1
Checks
YES/NO
NO
Remedies
Is continuity present between
terminals of the heater?
Replace the fixing
assembly.
Thermal fuse (FU2)
Thermistor
(TH1, TH2)
2
3
Is the resistance between the
following terminals on the control
panel PCB 0Ω or about 1.3 MΩ?
YES
Replace the fixing
assembly.
TH1 J603-1 ↔ J603-2
Fixing assembly
Replace the fixing assembly.
Is the problem corrected?
YES
NO
End.
DC controller/DC
power supply PCB
Replace the DC controller/
DC power supply PCB.
4-6
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CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS
CHAPTER 5 TROUBLESHOOTING PAPER FEED
PROBLEMS
A. Copy Paper Jams
Jams can be classified according to location within the copier:
q Pick-up assembly
w Separation/feeding assembly
e Fixing/delivery assembly
The discussions that follow are organized with reference to these assemblies.
5
3
2
1
Figure 5-1A
5-1
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CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS
1. Pick-Up Assembly
Cause
Copy paper
Step
1
Checks
YES/NO
YES
Remedies
Try copy paper of a type
recommended by Canon.
Is the problem corrected?
Advise the user to use
recommended paper.
2
Is the copy paper curled or wavy,
or otherwise deformed?
YES
Replace the copy paper;
advise the user on the
correct method of storage.
Pick-up sensor lever
3
4
Is the movement of the pick-up
sensor lever smooth?
NO
NO
Adjust the movement of
the pick-up sensor lever.
Spring (pick-up guide
plate;PC420/430/
FC220)
Check the movement of the pick-
up guide plate found under the
pick-up roller. Is its movement
smooth?
Check the position of the
spring of the pick-up guide
plate.
Pick-up roller
5
Is the pick-up roller deformed or
worn?
YES
NO
Replace the pick-up roller.
Spring (for pick-up
control),
1. Check the spring.
2. Check the spring clutch.
Spring clutch
(PC420/430/FC220)
2. Separation/Feeding Assembly
Cause
Copy paper
Step
1
Checks
YES/NO
YES
Remedies
Try paper of a type recom-
mended by Canon.
Advise the user to use
recommended paper.
Is the problem corrected?
2
Is the copy paper curled or wavy,
or otherwise deformed?
YES
Replace the copy paper;
advise the user on the
correct method of storage.
Feeding assembly
Static eliminator
Registration roller
3
4
5
Is foreign matter found in the
feeding assembly?
YES
YES
YES
Remove the foreign
matter.
Is the static eliminator soiled with
toner?
Clean the static eliminator.
Is the registration roller worn,
deformed, or soiled?
If dirt is found, clean it
using alcohol; if worn or
deformed, replace it.
Spring (for registration
control),
Spring clutch
NO
1. Check the spring.
2. Check the spring clutch
in the registration
assembly.
(registration assembly)
5-2
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CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS
3. Fixing/Delivery Assembly
Cause
Step
1
Checks
YES/NO
NO
Remedies
Separation/Feeding
assembly
Are the copy image and the
document matched correctly?
Check the separation/
feeding assembly.
Fixing assembly inlet
guide
2
3
4
Is the inlet guide soiled with
foreign matter or toner?
Clean it.
YES
NO
Delivery sensor lever
Does the delivery sensor lever
move smoothly?
Correct it so that the lever
moves smoothly.
Delivery roller
assembly
Is the delivery sensor (Q801)
PCB normal?
Check the delivery roller
assembly.
YES
NO
Delivery sensor PCB
Replace the delivery
sensor PCB.
5-3
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CHAPTER 5 TROUBLESHOOTING PAPER FEED PROBLEMS
B. Feeding Faults
1. Double Feeding
Cause
Copy paper
Step
1
Checks
YES/NO
YES
Remedies
Try copy paper of a type
recommended by Canon.
Advise the user to use
recommended paper.
Separation pad
2
Check the movement of the pick-
up guide plate.
Is the movement smooth?
YES
NO
Check the condition of the
separation pad.
Spring (pick-up guide
plate;
Check the position of
spring.
PC420/430/FC220)
2. Wrinkles
Cause
Step
1
Checks
YES/NO
YES
Remedies
Pick-up assembly,
Registration roller
Switch the copier OFF while the
copy paper is moving through
the feeding assembly.
Check the pick-up assem-
bly. Check the registration
roller.
Is the paper wrinkled at the
time? Or, is it moving askew?
Copy paper
2
Try paper fresh out of package.
Is the problem corrected?
YES
The paper may be moist;
advise the user on the
correct method of storage.
Also, advise the user to
remove curling before
feeding paper for a second
time when making two-
sided/overlay copies.
3
4
Try copy paper of a type
recommended by Canon.
YES
Advise the user to use
recommended paper.
Is the inlet guide soiled with
foreign matter or toner?
YES
NO
Clean it using solvent.
Inlet guide
Check the fixing assembly.
Fixing assembly
5-4
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF
ELECTRICAL PARTS
A. Sensors and Solenoids
SL1
Q902
PD602
PD601
SL2
Q901
Q131
Q801
6
Figure 6-1A
Symbol
Name
Notation
Description
Photointerrupter
Q131
Q801
Q901
Q902
PD601
PD602
SL1
Pick-up assembly paper sensor
Delivery assembly paper sensor
Motor rotation sensor
Copyboard position sensor
Intensity sensor
AE sensor
Pick-up/registration solenoid
Copyboard drive solenoid
Photodiode
Solenoid
SL2
6-1
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
B. Switches
SW1
SW604
SW606
SW2
Figure 6-1B
Symbol
Name
Notation
Description
Top cover switch
Switch
Switch
SW1
SW2
Delivery assembly door switch
SW604
SW606
Power switch
Density 3-setting switch
6-2
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
C. Lamp, Heater, Motor, and Others
M1
FU2
TH1
H1
Figure 6-1C
Symbol
M
Name
Notation
H1
Description
Heater
Motor
Fixing heater
M1
Main motor
Thermistor
TH1
FU2
Fixing heater temperature detection
Fixing heater overheating detection
Thermal fuse
6-3
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
D. Printed Circuit Board (PCB)
6
3
5
2
1
4
Figure 6-1D
Ref.
Name
Description
1
DC controller/DC power supply PCB
Controls sequence, supplies DC power, controls
scanning lamp ON
2
3
4
5
6
Control panel PCB
Scanning lamp PCB
Delivery sensor PCB
Motor rotation sensor PCB
Copyboard position sensor PCB
Controls/displays copying operation
Scanning lamp (LA1-LA8)
Detects delivery
Detects main motor rotation
Detects copyboard position
6-4
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
E. Variable Resistors (VR) and Check Pins by PCB
Of the variable resistors (VR) and check pins used in the copier, those used in the
field are discussed herein.
Do not touch those VRs and check pins not discussed herein; they are for factory
use only and require special tools and high precision for adjustment.
Note:
1. VRs that may be used
in the field. .............................
2. VRs that must not be
used in the field. ....................
1. DC Controller/DC Power Supply PCB
J101
J5
J102
(T107)
J103
J104
J108
1
2
VR103
VR102
J6
J8
J7
VR101
Note: The pin No. in parentheses refers to the PC400/FC200.
Figure 6-1E
6-5
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CHAPTER 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
2. Control Panel PCB
a. PC420/430/FC220
VR602 VR603 VR604
J611
7
1
J601
21
22
1
2
Figure 6-2E
b. PC400/FC200
VR604
J611
7
1
J601
17
18
1
2
Figure 6-3E
VR
Description
VR602 Use it to adjust the AE offset (use it only after replacing the scanning lamp unit, intensity
sensor, AE sensor, or control panel PCB).
VR603 Use it to adjust the AE gain (use it only after replacing the scanning lamp unit, intensity
sensor, AE sensor, or control panel PCB).
VR604 Use it to adjust the light intensity (use it only after replacing the scanning lamp unit, intensity
sensor, AE sensor, or control panel PCB).
Table 6-1E
6-6
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CHAPTER 7 SELF DIAGNOSIS
CHAPTER 7 SELF DIAGNOSIS
The copier’s microprocessor on the DC controller/DC power supply PCB is
equipped with a self diagnostic mechanism that checks the condition of the machine;
when the mechanism detects an error, it indicates an error code on the copy count
display.
(The PC400/FC200 does not have a copy count display; it indicates an error
condition by flashing the Jam indicator.)
‘E6’ is represented by alternating
Code
Cause
Description
• Thermistor (TH1; faulty)
• Fixing heater (H1; faulty)
• The temperature of the fixing heater is
215°C or more.
• DC controller/DC power supply (faulty)
• The temperature of the fixing heater
does not reach 80°C within 2.5 sec after
copying operation has started.
(Note)
• The temperature of the fixing heater
lowers below 135°C after has reached
150°C.
• The temperature of the fixing heater
does not reach 150°C within 7.5 sec
after copying operation has started.
• The maximum supply power is detected
for about 5 sec after the temperature of
the fixing heater has reached 150°C.
Note:
If an error associated with ‘E0’ is detected, ‘E’ is displayed (PC420/430/FC220)
or the Jam indicator (PC400/FC200) remains ON for about 0.5 sec; thereafter,
the power goes out.
7
7-1
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CHAPTER 7 SELF DIAGNOSIS
Code
Cause
Description
• Copyboard drive assembly
(faulty operation)
• Copyboard drive solenoid
(SL2; faulty)
• Copyboard position sensor PCB
(Q902; faulty)
• DC controller/DC power supply PCB
(faulty)
• The copyboard position sensor (Q902)
goes ON when copying operation starts.
• The copyboard position sensor (Q902)
is ON 0.8 sec after copying operation
has started.
• The copyboard position sensor (Q902)
does not go ON within 5.5 sec after
copying operation has started.
• The copyboard does not reach the start
position within a specific period of time,
or it moves past the start position.
• The copyboard position sensor (Q902)
is ON 1.5 sec after the copyboard has
started moving forward from the start
position.
• The copyboard position sensor (Q902)
does not go ON 10.4 sec after the copy-
board has started moving forward from
the start position.
• The copyboard position sensor (Q902)
does not go ON 1.2 sec or 4.7 sec after
the copyboard has started moving in
reverse from the reversal position.
• Control panel PCB (faulty)
• DC controller/DC power supply PCB
(faulty)
• The scanning lamp has remained for 2
sec continuously at such times as not
prescribed.
• Power supply frequency (error)
• The power supply frequency is higher
than specified.
Note:
1. The copier does not use code ‘E1’, ‘E3’, ‘E4’, or ‘E5’.
2. After self diagnosis has gone ON, the copier may be reset by switching it
OFF and then ON.
In the case of ‘E0’, however, the power is automatically turned OFF. To
reset, disconnect the power plug once, open the upper cover, or wait about 5
minutes without any operation; during the period, the microprocessor
remains powered and retains ‘E0’.
This consideration is to prevent the user from resetting the machine easily
when the thermistor may have blown; otherwise, the fixing heater would
become overheated, damaging parts near it.
3. Activation of self diagnosis forces the fixing heater (H1) and main motor (M1)
OFF.
7-2
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APPENDIX
A. General Timing Chart
PC400/FC200 General Timing Chart
(A4, 2 copies)
1 sec
Power switch
ON
Copy paper inserted
INTR
Copy paper inserted
LSTR
STOP
STBY
Sequence
Copyboard
STBY
COPY
CBRV
CBRV
STOP
CBFW
CBFW
CBRV
1 Main motor (M1)
Document position sensor
(Q902)
2
Copyboard drive solenoid
(SL2)
3
4 Scanning lamp (LA1-LA8)
5 Fixing heater (H1)
6 Primary AC bias
-240V
-625V
7 Primary DC bias
8 Developing AC bias
9 Developing DC bias
10 Transfer
-400V
*
-130 to -550V
**
*
*
11 Pick-up sensor (Q131)
12 Registration solenoid (SL1)
13 Delivery sensor (Q801)
* Cleaning mode.
** Measurement mode.
A-1
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PC420/430/FC220 General Timing Chart
(A4, 2 copies)
1 sec
Power switch
ON
Copy paper inserted
INTR
STBY
COPY
CBRV
LSTR
STOP
STBY
Sequence
Copyboard
CBRV
STOP
CBFW
CBFW
CBRV
1
2
Main motor (M1)
Document position sensor
(Q902)
Copyboard drive solenoid
(SL2)
3
4
Scanning lamp (LA1-LA8)
Fixing heater (H1)
Primary AC bias
5
6
-240V
-625V
7
Primary DC bias
8
Developing AC bias
Developing DC bias
Transfer
-400V
*
-120 to -560V
9
**
*
*
10
11
12
13
Pick-up sensor (Q131)
Pick-up solenoid (SL1)
Delivery sensor (Q801)
* Cleaning mode.
** Measurement mode.
A-2
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APPENDIX
B. Signals/Abbreviations List
What follows below is a list of signals and abbreviations used in the chapters of the
manual and circuit diagrams.
The abbreviations within parentheses represent analog signals, which cannot be
expressed in terms of ‘1’ or ‘0’.
1. Signals
ACBTP
[AE]
AC BIAS TIMING PULSE COMMAND
AE SIGNAL
CBSD
COPYBOARD DRIVE SOLENOID DRIVE COMMAND
DC BIAS CONTROL COMMAND
TRANSFER DC BIAS CONTROL COMMAND
OSCILLATION SIGNAL 0
DCBPWM
DCTPWM
DGT0
DGT1
OSCILLATION SIGNAL 1
DGT2
OSCILLATION SIGNAL 2
HTRD
FIXING HEATER DRIVE COMMAND
PRIMARY AC BIAS ON COMMAND
PRIMARY DC BIAS ON COMMAND
PRIMARY DC BIAS HIGH OUTPUT COMMAND
TRANSFER DC BIAS ON COMMAND
RETURN SIGNAL 0
RETURN SIGNAL 1
LAMP DRIVE COMMAND
LAMP INTENSITY DETECTION SIGNAL
MAIN MOTOR CLOCK PULSE SIGNAL
MAIN MOTOR DRIVE COMMAND
POWER OFF COMMAND
POWER SWITCH ON SIGNAL
PICK-UP ROLLER SOLENOID DRIVE COMMAND
RELAY DRIVE COMMAND
REGISTRATION SOLENOID DRIVE COMMAND
THERMISTOR SIGNAL 1
HVPAC
HVPDC
HVPHO
HVTDC
KEYR0
KEYR1
LAPWM
[LID]
MMCLK
MMD
PWOFF
PWSON
PUSD
RELAYED
RGSD
[TH1]
TREV
VPEAK
ZXDP
TRANSFER REVERSE DC BIAS ON COMMAND
VOLTAGE PEAK DETECT SIGNAL
ZERO CROSS DETECTION SIGNAL
A-3
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APPENDIX
2. Abbreviations
INTR
INITIAL ROTATION
LSTR
CBFW
CBRV
STBY
LAST ROTATION
COPYBOARD FORWARD
COPYBOARD REVERSE
STANDBY
A-4
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C. General Circuit Diagram
PC400/FC200 GENERAL CIRCUIT DIAGRAM
9
8
7
6
5
4
3
2
1
Delivery sensor
Fixing heater
temperature sensor
Q801
I
Intensity sensor
TH1
PD601
J801
NC
3
2
1
H
G
N.C N.C
J621F
J603F
J603P
J621P
Control panel PCB
1
1
J601
J908P J909P
J908F J909F
1
3
2
3
J906
J906PP
J906F
1
1
F
E
D
2
1
SW1
SW2
J108
JP350 J101 J102
J202
BK
W
BK
W
HOT
RETURN
DC controller/DC power supply PCB
100V
Door switch
Delivery door switch
J201
J5
J6
J7
J8
HOT
RETURN
J1
120/230V
1
2
1
2
C
B
A
J902F
J906PP
J902
J901F
J901PP
J901
1
2
3
1
2
1
2
3
Color Code
J905F
J903F
J904F
BK Black
BL Blue
BR Brown
GY Gray
GN Green
OR Orange
PK Pink
R5
J905
J903
J904
1
2
1
2
M
Q902
Q901
M1
Main motor
SL2
SL1
Registration
solenoid
Motor rotation
detection
Copyboard
position
detection
R
Red
SB Sky Blue
V
W
Y
Violet
White
Yellow
Copyboard
drive solenoid
YG Yellow Green
A-5
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PC420/430/FC220 GENERAL CIRCUIT DIAGRAM
9
8
7
6
5
4
3
2
1
Fixing heater
temperature sensor
Delivery sensor
Q801
I
AE sensor
Intensity sensor
PD602
TH1
PD601
J801
NC
3
2
1
H
J603F
J603P
J621F
J621P
G
F
Control panel PCB
J601
J908P J909P
J908F J909F
1
3
2
3
J906
J906PP
J906F
2
1
E
SW1
SW2
J108
JP350 J101 J102
J202
BK
W
BK
W
HOT
RETURN
DC controller/DC power supply PCB
100V
Door switch
Delivery door switch
J201
J5
J6
J7
J8
D
C
B
HOT
RETURN
J1
120/230V
1
2
1
2
J902F
J906PP
J902
J901F
J901PP
J901
Color Code
1
2
3
1
2
1
2
3
J905F
J903F
J904F
BK Black
BL Blue
BR Brown
GY Gray
GN Green
OR Orange
PK Pink
R5
J905
J903
J904
1
2
1
2
M
Q902
Q901
M1
SL2
SL1
Main motor
R
Red
Copyboard
position
detection
Motor rotation
detection
SB Sky Blue
V
W
Y
Pick-up
solenoid
Violet
White
Yellow
Copyboard
drive solenoid
YG Yellow Green
A
A-6
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APPENDIX
D. Special Tools Table
What follows below is a table of special tools used for servicing the machine in
addition to the standard tools set.
No.
1
Tool name
Digital
Tool Number
CK-0552
Shape
Category*
B
Remarks
For adjusting the AE
mechanism.
multimeter
*The tools are categorized as follows:
A:
B:
C:
tools that must be carried by each service person.
tools that must be carried by a group of about five service persons.
tools that must be kept by each workshop.
A-7
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APPENDIX
E. Solvents/Oils Table
No.
1
Name
Alcohol
Uses
Composition
Remarks
Cleaning:
e.g., glass, plastic, Alcohol
Hydrocarbon (fluorine family)
• Do not bring near fire.
• Procure locally.
rubber parts;
external covers
Surface active agent
• Isopropyl alcohol may be
substituted.
2
3
Solvent
Cleaning:
e.g., metal;
oil or toner dirt
Hydrocarbon
(fluorine/chlorine family)
Alcohol
• Do not bring near fire.
• Procure locally.
Heat-resisting Lubricating:
Lithium soap
• CK-0427 (500 g/can)
grease
drive assemblies
(mineral oil family)
Molybdenum bisulfate
4
5
Lubricating oil
Lubricating oil
Mineral oil (paraffin family)
Mineral oil (paraffin family)
• CK-0451 (100 cc)
• CK-0524 (100 cc)
A-8
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APPENDIX
F. Specifications
Item
Body
PC400/FC200
Portable (w/ grips)
PC420/430/FC220
Copyboard
Moving
Light source
Lens
Tungsten lamp of fuse type
Lens array
Photosensitive medium
Copying
OPC (24 dia.)
Indirect electrostatic
Roller (direct charging)
Slit (moving copyboard)
Manual
Charging
Exposure
Copy density adjustment
Development
Pick-up
Automatic (AE) or Manual
Multifeeder
Dry
Manual tray
Separation
Curvature + Static eliminator
Blade
Cleaning
Fixing
Plane heater
Document type
Maximum document size
Reproduction ratio
Wait time
Sheet, Book, 3-D object (2 kg/4.4 lb max.)
LTR/A4; LGL*
1:1 (±1.2%)
0 sec. (approx.; at 20°C/68°F)
22 sec. (LTR)
First copy
Continuous copying
Copying speed
Not available
1 to 9 copies or F
4 copies/min. (approx.; A4R/LTR- 4 copies/min. (A4R/LTR-R or
R or smaller)
smaller)
3 copies/min.(LGL)
Copy size
A4/LTR; LGL* max.; postcard min.
Copy paper type
52 to 128 g/m2, Tracing paper, Colored paper, OHP film, Postcard
(vertical), Labels, Wrapping paper (63 g/m2)
• Same edge orientation.
• Copying on each side no more
than twice.
• Paper of 64 to 128 g/m2.
Two-sided copying
• Paper of 64 to 128 g/m2.
• Copying on each side no more
than three times.
Overlay copying
Multifeeder tray
5 mm deep (about 50 sheets of
A4, 80 g/m2)
Copy tray
9 copies (approx.; A4/LTR, 80 g/m2)
Non-image width
2 mm (leading edge)
A4: 0 mm (left/right)
LTR/LGL: 2 mm (left/right)
Auto power-off
*PC430 only.
Available (5 min, approx.)
A-9
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APPENDIX
Item
PC400/FC200
7.5° to 32.5°C/45.5° to 90.5°F
5% to 85%
PC420/430/FC220
Serial numbers
Temperature
Humidity
Operating
environment
Atmospheric pressure 810.6 hPa to 1013.3 hPa (0.8 to 1 atm)
Serial numbers
ZTG ✕✕✕✕✕ (PC400:WHITE)
ZTH ✕✕✕✕✕ (PC400:GRAY)
NVD
✕✕✕✕✕
120V, 60Hz
(FC220:WHITE)
ZTJ
✕✕✕✕✕
Power
supply
(PC420:WHITE)
230V, 50Hz
RTL/PTQ
RTM/PTR
✕✕✕✕✕
(FC200:WHITE)
UTP/UTQ
✕✕✕✕✕ (FC220:WHITE)
PTS ✕✕✕✕✕ (FC220:WHITE)
PTT ✕✕✕✕✕ (FC220:WHITE)
Maximum
Standby
0.7 kW or less
Power
consumption
0.1 W (approx.; 5 min; reference only)
0.2 kWh (reference only)
71 dB
Continuous
Copying
Sound power level
by ISO
Noise
Standby
Ozone
0.01 ppm or less (average over 8 hr)
14.1 in./359 mm
Width
Depth
Height
15.7 in./402 mm
Dimensions
4.1 in./108 mm
Weight (including cartridge) 16.6 lb/7.4 kg (approx.)
Copy paper
Cartridge
Keep wrapped to protect against humidity.
Consumables
See CHAPTER 1.
A-10
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Prepared by
OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1
OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION
CANON INC.
Printed in Japan
REVISION 0 (JAN. 1998) [23715]
5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan
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This publication is printed on
70% reprocessed paper.
PRINTED IN JAPAN (IMPRIME AU JAPON)
0198M2.01-1
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