Canon PC940 Support Question
Canon PC940 Support Question
Find answers below for this question about Canon PC940.Need a Canon PC940 manual? We have 1 online manual for this item!
Question posted by matt01095 on November 26th, 2021
Streaks
How do I get rid of black streaks. Making it lighter isn't the answermatt
Current Answers
Answer #1: Posted by Technoprince123 on November 26th, 2021 11:06 PM
Technoprince123
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February 8th, 2021 Points: 1,198,170
Member since:
February 8th, 2021 Points: 1,198,170
Please response if this answer is acceptable and solw your problem thanks
Answer #2: Posted by SonuKumar on November 27th, 2021 7:40 AM
SonuKumar
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May 9th, 2021 Points: 16,588,890
Member since:
May 9th, 2021 Points: 16,588,890
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
Regards,
Sonu
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Related Canon PC940 Manual Pages
Service Manual - Page 1
... F13-8441
F13-8461
PC921 F13-8432
TYA00001-
TVH00001- TVC00001-
FY8-13GA-000
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
PC940 F13-8436
PC941 F13-8437
PC950 F13-8231 F13-8241
PC960 F13-8434
PC980 F13-8232
PC981 F13-8233
TVD00001- AUG. 1999
COPYRIGHT © 1999...
Service Manual - Page 2
... INC. 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan
COPYRIGHT © 1999 CANON INC. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
Service Manual - Page 5
... Universal 500 sheets 500 sheets
The notation "√" indicates that the item in the following table. Model
PC860 PC880 PC890 PC920 PC920 PC920 PC920 PC921 PC940 PC941 PC950 PC950 PC950 PC960 PC980 PC981
Type code
TYA TZA UAA PUD PUE PUH TVB TVC TVD TVE PUF PUG TVF TVG TVH TVJ...
Service Manual - Page 7
... IN JAPAN (IMPRIME AU JAPON)
v NAMES OF PARTS 1-10 A. Functional Construction ........2-1 B. Controlling the Main Motor (M1 2-5
E. IMAGE FORMATION 1-20 A. Cross Section 1-13
IV. FEATURES 1-1 II. Copier 1-2 B. USING THE MACHINE 1-15 A. Inputs to and Outputs from the DC Controller 2-7
CHAPTER 3 EXPOSURE SYSTEM
I.
Service Manual - Page 10
... Check Pins by PCB .......... 11-84
VII. ADF CONTROLLER CIRCUIT
DIAGRAM A-15 F. SENSOR CIRCUIT DIAGRAM A-30
J.
MAINTENANCE AND INSPECTION 11-3 A. TROUBLESHOOTING IMAGE FAULTS 11-48 A. Making Initial Checks ....... 11-48 B. ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 11-79 A. Points to Note for Servicing 11-4
II. Troubleshooting Image Faults 11-53
IV...
Service Manual - Page 11
Copier 1-2 B. IMAGE FORMATION 1-20 A. Outline 1-20
COPYRIGHT © 1999 CANON INC.
USING THE MACHINE 1-15 A. SPECIFICATIONS 1-2
A. Control Panel 1-15
V. NAMES OF PARTS 1-10 A. FEATURES 1-1 II. ADF 1-8 ...
Service Manual - Page 13
...cleaning work immediately after power-on the average, 0.02 ppm or less at maximum (1/100 to make jam removal easy.
8. ADF Type • Continuous copying is 0 sec (at all times...with the use of ozone: 0.01 ppm or less on .
4. COPYRIGHT © 1999 CANON INC. Personal Copier with a Zoom Function and a Fixed Copyboard • You can choose either a default enlargement/reduction ratio or ...
Service Manual - Page 14
... (copyboard)
Table 1-202
1-2
COPYRIGHT © 1999 CANON INC. CHAPTER 1 GENERAL DESCRIPTION
II.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SPECIFICATIONS
A. Copier
1.
Service Manual - Page 29
... Cover
Clean the cover with a moist cloth (with water or mild detergent solution);
Caution: • You cannot start feeder cleaning mode while the machine is making copies or if an error
exists. • The auto power-off mechanism does not operate while feeder cleaning mode is being
executed. CANON PC800s/900s...
Service Manual - Page 66
CHAPTER 3 EXPOSURE SYSTEM
2. Outline of the Scanner Drive Cable
Wind 1.5 times. (black cable) Wind 7.5 times. (silver-colored cable)
Figure 3-306
3-16
COPYRIGHT © 1999 CANON INC.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Service Manual - Page 74
..., hook it on the top hook of the No. 2/3 mirror mount, and lead it 1.5 times. Routing the Forwarding Cable
[4]
1) Fit the longer end forwarding cable [3]
(black) [2] on the pulley [8] of the cable
drive pulley [1], and wind it between the No. 1 mirror mount [7] and the scanning lamp [9].
[8]
[7]
[9]
[5]
3-24
Figure 3-323
COPYRIGHT ©...
Service Manual - Page 85
... INC. CHAPTER 3 EXPOSURE SYSTEM
[2] [1]
2) While keeping the condition in step 1), turn off the power. • The lens will move to the Direct position.
3) Check to make sure that the lever will not come into contact when the cam gear rotates). 2. Routing the Lens Cable 1) After routing the lens cable, keep the...
Service Manual - Page 90
... JAPAN (IMPRIME AU JAPON) Points to Note When Mounting the Fuse When mounting the thermal fuse, be sure
that the fuse is oriented as shown. Make sure that the thermal fuse is in contact with
the reflecting plate.
(front)
Reflecting plate
Thermal fuse
Figure 3-352
3-40
COPYRIGHT © 1999 CANON INC...
Service Manual - Page 104
... ON signal (serial signal) generated by the deterioration of the transfer bias to correct
the changes in the environment. Reference: While the transfer charging roller makes a single rotation, the microprocessor (Q900) checks the transfer current detection signal four times, and determines the level of the transfer roller or the changes in...
Service Manual - Page 112
...AE Adjustment (VR102, VR103) If you have replaced the scanning lamp or the AE sensor PCB, make adjustments as follows:
Operating Procedure Before Starting the Work
• Obtain a newspaper showing more or ... large headings.)
• Obtain five sheets of white sheets of paper. • Check to make sure that the intensity of the scanning lamp has been adjusted when you have
replaced the scanning...
Service Manual - Page 114
Lighter Darker
SW101 Figure 4-120
4-20
COPYRIGHT © 1999 CANON INC.
VR103
Figure 4-119
9) Repeat steps 5) through 8) so that the values of both VR102 and VR103 are too light, go back to step 5) and make adjustments once again.
10) Make a copy, and check to make sure that the reading of its place, place five blank...
Service Manual - Page 115
... detecting shaft. Controlling the Side Blanking Mechanism
1. Operations To blank out the non-image area in Direct and Reduce mode B: Position of excess toner when making reduced copies.
2.
Service Manual - Page 117
...expose images. Light-Blocking Shutter When the cartridge is provided to protect the photosensitive drum from the machine, light makes its way through the opening used
to open the
shutter unless absolutely necessary. CANON PC800s/900s REV.0 AUG.... photosensitive drum can develop photo memory,
which can cause white spots or black bands on copies. b.
CHAPTER 4 IMAGE FORMATION SYSTEM
A.
Service Manual - Page 244
...
Unpacking and Installation
Step 1
2
Work
Checks and remarks
Take out the copier and the attachments from the shipping box, and check to make sure that none is missing:
• Cassette • Copy tray &#...AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) A.
If the machine has been brought in copiers, can cause blank copies. UNPACKING AND INSTALLATION
When a piece of metal is known as "...
Service Manual - Page 270
STANDARDS AND ADJUSTMENTS
A. Leading Edge Non-Image Width
Make adjustments so that the width is copied in Direct. CANON PC800s/900s...Direction of VR105 Clockwise
Counterclockwise
Leading edge non-image width Decreases Increases
Table 11-201
COPYRIGHT © 1999 CANON INC. Copier a.
Caution: If you have performed this adjustment, be sure to adjust the image leading edge margin.
2.0 ±...
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