Canon PC920 Support Question
Canon PC920 Support Question
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Question posted by vhoffman on November 30th, 2015
Grinding Noise While Printing Copies On The Canon Pc 920 Copier.
Our office copier is several years old but has always worked great. However, in the last few days when copies are being made the photocopier is making a grinding sound while copying. Can you give me some suggestions on what's going on with it? Thank You.
Current Answers
Related Canon PC920 Manual Pages
Service Manual - Page 2
... DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD. Printed in Japan Imprimé au Japon
Use of this manual should be strictly supervised to avoid disclosure of confidential information. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF...
Service Manual - Page 3
... are operated, and shows how they may be disassembled/assembled and adjusted.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
i
It also explains the timing at ... circuit diagrams.
COPYRIGHT © 1999 CANON INC. It also shows how the unit may be disassembled/assembled and adjusted. Chapter 2 Basic Operation explains how copies are operated, and shows how they...
Service Manual - Page 5
...a good understanding of the difference from model to model before referring to this manual.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
iii • This service manual covers the models ... table. Copying speed (cpm) at Direct
12 12 12 10 10 10 10 10 13 13 12 12 13 10 13 13
COPYRIGHT © 1999 CANON INC. Model
PC860 PC880 PC890 PC920 PC920 PC920 PC920 PC921 PC940...
Service Manual - Page 7
... Drive System 3-3 D. EXPOSURE SYSTEM 3-9
A. Scanner Drive Assembly .... 3-13 B. Copier 1-2 B. ADF 1-8 III. Outline 1-20
CHAPTER 2 BASIC OPERATION
I . Outline of Operations 2-3
D. Outline 3-1 B. Scanner Drive System ..........3-4
II. DISASSEMBLY/ASSEMBLY ..... 3-12 A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
v Control Panel 1-15
V. BASIC...
Service Manual - Page 9
... Delivery 8-12 G. SELECTING A SITE 9-1 II. STORING AND HANDLING
THE CARTRIDGE 10-2
A. Copyboard Glass 7-16 D. Placing Copy Paper 9-9 III. SCHEDULED SERVICING ....... 10-1 IV. External Covers 7-8 B. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
vii Protecting the Power Supply Circuit 7-6
III. Detecting an Original 8-6 E. CHAPTER 7 EXTERNALS...
Service Manual - Page 10
...PRINTED IN JAPAN (IMPRIME AU JAPON) Image Adjustment Basic Procedure 11-3 B. ADF 11-30 C. Troubleshooting Malfunctions 11-61
V. ADF CONTROLLER CIRCUIT
DIAGRAM A-15 F. SENSOR CIRCUIT DIAGRAM A-30
J. NOISE FILTER CIRCUIT DIAGRAM A-31
K. SOLVENTS/OILS A-36
viii
COPYRIGHT © 1999 CANON...N. SPECIAL TOOLS A-35 O. Making Initial Checks ....... 11-48 ...G. Copy Paper Jam ...
Service Manual - Page 11
... THE USER 1-17
VI.
CHAPTER 1 GENERAL DESCRIPTION
This chapter provides specifications of the machine, instructions on how to operate the machine, and an outline of copying process. NAMES OF PARTS 1-10 A. Outline 1-20
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Service Manual - Page 13
...8226; Continuous copying is 0 sec (at maximum (1/100 to make jam removal easy.
8. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-1 CHAPTER 1 GENERAL DESCRIPTION
I. Personal Copier with the use...COPYRIGHT © 1999 CANON INC.
The user may be as large as A4 (LGL) or as small as he/she performs simple replacement/cleaning work immediately after power-on...
Service Manual - Page 14
...medium
2.
Copier
1. CHAPTER 1 GENERAL DESCRIPTION
II. Mechanisms Item
Reproduction Charging Exposure Copy density ...pc.) Single-feeder (single-feeder type) Multifeeder (multifeeder type) Curvature separation + static eliminator Flat heater Blade Center reference (copyboard)
Table 1-202
1-2
COPYRIGHT © 1999 CANON INC. SPECIFICATIONS
A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED...
Service Manual - Page 15
...ratio Zoom Wait time First copy time Continuous copying Copy size Copy paper type
Cassette
Multifeeder tray Copy tray Non-image width Auto power-off
COPYRIGHT © 1999 CANON INC. A4R/ B5R),...; A4/LGL to 80 g/m2; CHAPTER 1 GENERAL DESCRIPTION
3. fixed)*6
Table 1-203
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
1-3 A4R/ B5R), eco paper (80 g/m2;
...
Service Manual - Page 17
...PRINTED IN JAPAN (IMPRIME AU JAPON)
1-5 Toner: Avoid direct sunlight, and store at 40°C/104°F, 85%
or less. Table 1-204
*1. 250-sheet cassette type *2. 500-sheet cassette type
COPYRIGHT © 1999 CANON INC. reference only) Copying: 0.4kWh (approx.; reference only)
Standby: -(sound power level by ISO) Copying: (sound...
Maximum power consumption Noise Ozone
TVBxxxxx TVCxxxxx ...
Service Manual - Page 208
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Outline of feeding originals to the ADF in advance. The CPU on the ADF controller
PCB. The copying modes selected on the copier are controlled by the CPU on the ADF controller PCB reads the signals from the sensors and the copier and
generates...
Service Manual - Page 244
... from the shipping box, and check to make sure that none is known as "condensation" and, in step 9.
9-2
COPYRIGHT © 1999 CANON INC. Shipping attachment [1]
You will be storing the shipping attachment [1] inside the machine in copiers, can cause blank copies. This phenomenon is missing:
• Cassette • Copy tray • Power cord • ADF...
Service Manual - Page 250
... that come with the machine and stick it. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) rect.
• Check to make sure that the three grooves in the copy tray are all in English. CHAPTER 9 INSTALLATION
Step
Work
20 Attach the copy tray.
Caution: This step applies to the ADF type only...
Service Manual - Page 270
... width Decreases Increases
Table 11-201
COPYRIGHT © 1999 CANON INC. STANDARDS AND ADJUSTMENTS
A.
Leading Edge Non-Image Width
Make adjustments so that the width is copied in Direct. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-5 CHAPTER 11 TROUBLESHOOTING
II. Mechanical
1.
Copier a. Caution: If you have performed this adjustment, be...
Service Manual - Page 323
...cartridge. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Or, is moving? Is abnormal noise heard from the scanner motor? Replace the cartridge.
19 The copy has horizontal... NO
Action 1. Is the problem found at different positions? Scanning system Feeding system
3 Make a reduced copy, and compare it against one made in reverse." Then, apply lubricant. (CK-0551)...
Service Manual - Page 347
... PCB (front) [9] Blanking PCB (rear)
Description Removes noise from the power supply. Provides copying insurrections/indications. Detects the density of operations.
Controls sequence of originals. Makes an electrical connection between the machine top and bottom. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) PCBs
[9]
[3] [4]
[1]
[7]
[8] [5]
[2] [6]
Figure...
Service Manual - Page 352
...all times.
• During a copying run, the +24 V power ...• The composite power supply PCB is
faulty. • Data communication between the
copier and the ADF (faulty).
• The DC controller PCB is faulty. •... excess of the main motor deviates
(indicated by ±20%.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-87 CHAPTER 11 TROUBLESHOOTING
Code...
Service Manual - Page 357
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 2. ADF TYPE
Sequence
Power switch
Copy Start key
ON Original set ON
STBY
INTR
ORGST
SCFW
SCRV
ORGST
SCFW
(A4, 2 copies, DIRECT, ...SL5)
Vertical path roller 8 paper sensor (PS4)
9
Registration clutch solenoid (SL2)
10 Copier
Pre-registration roller paper sensor (Q751)
11 Scanning lamp (LA1)
12 Primary AC bias...
Service Manual - Page 360
...CANON PC800s/900s REV.0 AUG. 1999 PRINTED...
J4
Fixing film
Varistor 1
1 2 J303
Power switch
A-5 GENERAL CIRCUIT DIAGRAM
MAIN MOTOR DRIVER PCB
1.
Copier
J901
1 2 3 4
Main motor M1
M
BP701
BP705
PR
+24VU GND MMD MLOCK
[120V]
H...COPYRIGHT © 1999 CANON INC. [220/240V]
H N
Line filter
J502
J501
FT2
FT4
LF1
2
2
FT1
FT3
1
1
J1 DS1
Door switch
NF1
NOISE FILTER PCB
Thermal ...
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