Canon PC720 Support and Manuals
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Most Recent Canon PC720 Questions
Canon Pc720 Grinds And Won't Feed Paper.
My Canon PC720 grinds and won't feed paper. When I open it, there appears to be a small neopene belt...
My Canon PC720 grinds and won't feed paper. When I open it, there appears to be a small neopene belt...
(Posted by randpotter 2 years ago)
Need A List Of 'error Signs. Do Not Know The One Flashing On My Pc720. It
Error sign looks like a figure 8 with a squiggle. And it is red.
Error sign looks like a figure 8 with a squiggle. And it is red.
(Posted by bettyschafer2 4 years ago)
Paper Drawer Is Stuck Closed. How Do I Open It?
I had opened the unit to replace cartridge. Now with or without the old cartridge, the drawer seems ...
I had opened the unit to replace cartridge. Now with or without the old cartridge, the drawer seems ...
(Posted by jcr416 6 years ago)
Canon Pc720 Copier. Paper Jam.
I found a small fat little spring not attached to anything. Please let me know how and were to attac...
I found a small fat little spring not attached to anything. Please let me know how and were to attac...
(Posted by skoziel563 9 years ago)
Cannon Pc 720 Copier
i have an old pc720 copier not used very often when i turn it on (E2) appeares in the led can you te...
i have an old pc720 copier not used very often when i turn it on (E2) appeares in the led can you te...
(Posted by ebwin1 10 years ago)
Canon PC720 Videos
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Popular Canon PC720 Manual Pages
Service Manual - Page 3
... available for troubleshooting problems in this manual, Service Handbook, and Service Information Bulletins, for the following chapters: In CHAPTER 1, "GENERAL DESCRIPTION," a brief discussion of the copier's features, specifications, and an explanation of this Service Manual contains a set of appendixes consisting of replacement parts and consumables.
Multifeeding (manual)
-
Copying...
Service Manual - Page 9
....
5. Separate top unit. • The copier's top unit may simply replace the cartridge and perform simple cleaning work . ...manual).
6. CANON PC7201740/7501770 REV.0 AUG.1994 PRINTED IN JAPAN fMPRIME AU JAPAN)
1 - 1
FEATURES
1. Cassette accommodating various types of paper and 2-way pick-up. • The universal cassette (about 250 sheets) accommodates paper of existing machines...
Service Manual - Page 19
...-off the power.
1.1 Using Transparencies (PC720/740) 1) Shift the delivery guide plate on the singlefeeder. • You must not set more than one is finished before the next...want using the Paper Select key. 7) Set the copy count you may set the ratio between 70% and 141% in 1% increments. configuration 5) Place a single transparency on the copy
tray upright. CANON PC72017407501770 REV.0...
Service Manual - Page 26
... parts:
1. rection switch. If the dirt cannot be soiled or copy paper tends to jam frequently, advise the user to...and dry wipe it with a cloth moistened with a moist cloth; CANON PC720/7408EORT0 REVS AUG. 1994 PRINTED IN JAPAN tIMPRIME AU JAPONI
O
G....in density adjustment mode (AE or manual), you may switch among three copy density settings using the Density Correction switch. 1) ...
Service Manual - Page 31
COPYING PROCESS MI
I. Image exposure)
(7. Transfer 5. CANON PC7201740R50M0 REV.O AUG.1994 PRINTEDIN JAPAN OMPRIME AU JAPONI
2 - 1 Outline
The copier uses a direct charging/transfer system with each component block arranged as shown in...
A. Fixing
4. Separation
Registration
: Flow of copy paper
(Cassette/manual feed)
: Rotation of photosensitive drum
Figure 2-102
COPYRIGHT © t994...
Service Manual - Page 33
...copier uses its primary charging roller to maintain primary potential.
Reference: A direct charging system provides such advantages as low application voltage and generates little, if any, ozone.
COPYING PROCESS OM
C.
CANON PC720... neutralize the charges in preparation for pre-exposure. COPYRIGHT © 1994 CANON INC.
Figure 2-106
In this step, the optical image of conducting ...
Service Manual - Page 36
... prevent such a problem, the copier applies a positive voltage to the separation static eliminator to the paper while the copy paper moves through the fixing film and the pressure roller.
The temperature of the fixing heater and serves to make sure that melting toner will not stick to a specific temperature.
2 - 6
COPYRIGHT © 1994 CANON INC.
CANON PC720,740/750i770...
Service Manual - Page 42
...; Pre-registration roller paper
detection • Delivery paper detection • Film displacement detection • Cartridge color detection • Cassette detection • Singlefeeder pick-up
detection (PC720/740)
Q101
CPU... instructions of the program stored in advance and generates signals used to drive such loads as motors, solenoids, and lamps.
Electrical Circuitry
The copier's...
Service Manual - Page 56
... on the DC
controller PCB receives such instructions as copying modes and reproduction ratios from the control panel circuit;
the motor driver circuit is used to control the rated current according to the setting.
(Q101)
DC controller PCB
Voltage on...the speed of drive pulses (SC-A through the motor drive circuit. CANON PC7207401150IT10REV.0 AUG.1994 PRINTEDINJAPAN(mput AU JAPAN)
Service Manual - Page 63
... AC bias current constant.
b. CANON PC720/740/750/770 REV.O AUG.1994 PRINTED IN JAPAN omput AU JAPON)
3 - 23 The microprocessor on the composite power supply PCB drives the main transformer (T101) while sending the AC bias on the composite power supply PCB.
c. d.
Controlling the DC Bias to a Specific Voltage The DC bias...
Service Manual - Page 76
... to the copy tray.
Name
Remarks
PS3 Delivery paper sensor
Q751 Pre-registration roller paper sensor
PS7 Singlefeeder paper sensor PC720/740
DC controller PCB...copier is then moved to the transfer, separation, feeding, and fixing assemblies before it matches the leading edge of a single-cassette path or a multifeeder path. MOPERATIONS AND TIMING
IV.
PICK-UP/FEEDING SYSTEM
A. CANON...
Service Manual - Page 91
...CANON INC. Checking for Overheating at the same time, indicates an error code (E00 through `E003' is indicated on the control panel, the copier will respond to a press on the control panel. er. Once changed, the distance between sheets of paper is indicated in areas where paper...
5. CANON PC720/740/7501770 REV.() AUG. 1994 PRINTED IN JAPAN piPoit AU JAPAN)
3 - 51 In multifeeder manual mode...
Service Manual - Page 92
The fixing film displacement correction mechanism consists of the following four parts:
• tension roller • swing arm • tension ... and an error code (E0 and 07 alternately flashed) is equipped with a correction mechanism.
CANON PC720114050/770 REV.O AUG.1994 PRINTEDIN JAPAN omplut AU JAPON) OPERATIONS AND TIMING K,
7. To correct such displacement, the copier is indicated on...
Service Manual - Page 101
... +24 VU for exchange of these codes (E000, E001, E002, E003) occurs, charges are turned on error codes (E000, E001, E002, E003), the copier uses the capacitor (C123) located within the DC controller circuit. When any of data with a microprocessor for the DC controller PCB. COPYRIGHT © 1994 CANON INC. Caution:
The back-up data...
Service Manual - Page 111
... (TH2) temperature fails to reach 65°C in particular); CANON PC720/7401750I770 REVD AUG.1994 PRINTED IN JAPAN (imPRimt AU JAPON)
3 - 71 SELF DIAGNOSIS
The copier's DC controller PCB is equipped with `E000', `E001', 'E002', or 'E003' has occurred.
H
Fixing heater (overheating)
EC
Problems associated with a microprocessor that checks the state of `E001', `E0...
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