Canon PC720 Support Question
Canon PC720 Support Question
Find answers below for this question about Canon PC720.Need a Canon PC720 manual? We have 1 online manual for this item!
Question posted by bettyschafer2 on April 7th, 2020
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.
Current Answers
Answer #1: Posted by freginold on April 7th, 2020 7:36 PM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
Canon PC720 error codes are listed here:
https://printcopy.info/index.php?mod=erc&brand=Canon&model=PC720
https://printcopy.info/index.php?mod=erc&brand=Canon&model=PC720
Related Canon PC720 Manual Pages
Service Manual - Page 3
...copier's electrical and mechanical systems are related to each other for quick response to the user's needs.
a Service Information Bulletin will be issued as a handy reference for servicing the machine in the field. All service persons are given. The PC720...This Service Manual contains the basic facts and figures about the plain paper copier PC720/740/750/770, and is compiled to serve as...
Service Manual - Page 19
...the
auto power-off the power.
1.1 Using Transparencies (PC720/740) 1) Shift the delivery guide plate on the ... INC. If paper jams, the JAM indicator will flash and copying operation stops; open the top unit. ... mechanism becomes activated if the copier is opened for each transparency delivered...PRINTED IN JAPAN (IMPRIME AU JAPON)
1 - 11 Figure 1-403
2) Place an original on the copyboard, and...
Service Manual - Page 23
...check if
there is copy paper. Figure 1-410
4) Pull out any . Remove the paper if found.
3) Shift the open/close lever to indicate the presence of copies. CANON PC720/T401759/770 REV.O AUG.1994 PRINTEDIN ...set copy
paper.
Removing Jams
The Jam indicator flashes to open the body. D.
If there is paper in the cassette, go off, and
the copier will make the remaining number of a jam ...
Service Manual - Page 33
... an AC bias is charged to the roller in the light area.
CANON PC720/740/150M0 REV.O AUG.1994 PRINTED IN JAPAN pmplatt AU JAPON)
2 - 3 Figure 2-106
In this step, the optical image of the photosensitive drum uniform, eliminating the need for the formation of the photosensitive drum is applied to a uniform negative...
Service Manual - Page 36
...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.
CANON PC720... to the film-this design eliminates the need for warm-up time.
The fixing heater...paper
O
Fixing heater
Thermistor Fixing film
Toner
Static eliminator
Figure 2-112
Copy paper is separated from the photosensitive drum...
Service Manual - Page 63
c.
CANON PC720/740/750/770 REV.O AUG.1994 ... constant value by the oscillation/amplitude control circuit. Switching the DC Bias Voltage Level The copier switches the level of voltage taken.
The microprocessor on the composite power supply PCB drives ...bias
P e-heatn -400V
-625V -400V
Figure 3-307
COPYRIGHT O 1994 CANON INC. d. Operation a. MWAIOPERATIONS AND TIMINGKM
2. b.
Service Manual - Page 68
...SCRV 1STR STBY
Main motor (M1) Cleaning bias Reference bias (ATVC) Transfer bias
sec (approx.) U
Figure 3-314
3 - 28
COPYRIGHT © 1994 CANON INC. b. ration of the transfer roller can change the ... (ATVC) Changes in the transfer efficiency, the copier corrects the level of each time the Copy Start key is a negative voltage.
CANON PC720/74000770 REV.O AUG.1994 PRINTED IN JAPAN pmpFeat ...
Service Manual - Page 78
... turns on, the pawl moves away from the control ring, thereby allowing the drive of the copier's pick-up roller is rotating.
this way, the drive is switched by the spring clutch, control...up and sent as far as the pick-up roller consists
of the two at a time.
2.
The PC720/740's pick-up solenoid turns on the photosensitive drum.
3 - 38
COPYRIGHT © 1994 CANON INC.
...
Service Manual - Page 91
...error signal (HTNG). The data for the color developing assembly, the distance between sheets of paper is turned
on the DC controller
PCB monitors the voltage of the control panel, disabling the Copy Start key.
CANON PC720...Should the temperature at the
end of the fixing heater:
a. Protection Mechanisms The copier is indicated in turn itself off the relay (RL601) to the fixing heater....
Service Manual - Page 92
....
If the fixing film becomes displaced toward the front, the copier lowers the front of the range within which displacement is indicated on . When the sensor (PS4) turns on, the fixing film is stopped and an error code (E0 and 07 alternately flashed) is corrected, the fixing film displacement sensor (PS4) turns on...
Service Manual - Page 95
...sec, and indicates the Add Paper message. Absence of time, the copier identifies a jam, stops the main motor in advance. CANON PC72OIT40R50ITTO ...copier identifies a pick-up clutch solenoid (SL1) Jam check Registration sensor (Q751) Main motor (M1)
2.1sec
4 normal
Figure 3-421 (normal)
COPYRIGHT © 1994 CANON INC. Copy Start key
ON
V
STBY
INTR
SCFW {
Pick-up delay jam and flashes...
Service Manual - Page 97
... period of time after
paper has been picked up, the copier identifies a pick-up delay jam, stops copying operation, and flashes the Jam message.
CANON P0720174011501770 REV.0 AUG.1994 PRINTED IN...Copy Start key has been pressed, the copier identifies a pick-up clutch solenoid (SL1) Jam check Registration sensor (Q751) Main motor
2.1 sec
Jam sec
Figure 3-424
b.
Copy paper inserted
STBY
...
Service Manual - Page 98
...time because of
a feeding problem, the copier identifies a delivery delay jam, stops copying operation, and flashes the Jam message.
CANON PC720/740R501770REV.OAUG.1994 PRINTEDIN JAPANDMPRIMEAUJAPON) Copy ...3.4 sec 4 Jam s1e.5c
Figure 3-427
5. SCFW
SCRV
SCFW
SCRV
SCFW
Jam check Delivery sensor (PS4) Main motor (WI)
4.3 sec
I. 4.3 sec II 4 Normal I
Figure 3-428
Jam sec
3 - 58...
Service Manual - Page 101
...PCB is turned on .
Caution:
The back-up data on the condition that an error associated with an auxiliary power supply to back up capacitor (C123) keeps charges for ... after the power switch is on to supply high voltage. CANON PC720/14017501770 REVD AUG. 1994 PRINTED IN JAPAN ompRat AU JAPON)
3 - 61 The copier's power supply is equipped with a microprocessor for the DC controller...
Service Manual - Page 103
... the Control Value (low voltage) If the composite power supply PCB finds
that the difference between the setting for about 4 sec;
Detecting Errors by opening the copier's top unit, correcting the load, and turning on the control panel.
1.
COPYRIGHT © 1994 CANON INC. CANON PC72074011501170 REY.0 AUG.1994 PRINTED IN JAPAN (await...
Service Manual - Page 111
...flashed alternately. COPYRIGHT © 1994 CANON INC. faulty) • Thermal fuse (FU1;
CANON PC720.../7401750I770 REVD AUG.1994 PRINTED IN JAPAN (imPRimt AU JAPON)
3 - 71 OPERATIONS AND TIMINGIMII
VIII.
faulty)
U.LILOLI • Fixing heater (H1; SELF DIAGNOSIS
The copier's DC controller PCB is equipped with `E000', `E001', 'E002', or 'E003' has occurred. when it identifies an error...
Service Manual - Page 113
CANON PC720/7401750770 REV.O AUG.1994 PRINTED IN JAPAN (IlAPRIME AU JAPON)
3 - 73
I nr13
• DC controller PCB (faulty...faulty)
(keys on for 5 sec during standby.
• The scanning lamp remains off for 5 sec during copying.
• An error is detected in the communication between the DC controller PCB and the composite power supply PCB.
• The intervals in the zero-cross...
Service Manual - Page 142
...
while rotating it.
2. Installing the Scanning Lamp Install the scanning lamp so that the
light-emitting portion (transparent glass) is on both ends of the copier. CANON PC7201740R501170REV.OAUG.1994 PRINTEDIN JAPANpink AUJAPON) Illuminating Assembly
1. Light-emitting portion
0
0 Figure 4-401
Figure 4-402 (front view)
4 - 26
COPYRIGHT 4 1994 CANONINC.
=MECHANICAL SYSTEM
IV.
Service Manual - Page 156
Checks/remarks
11
Push the icon on the copier's top
f
unit to close.
12 Connect the power cord to the power cord connector.
--------1
...
9 Place the cartridge on the power switch. CANON PC720/740501170 REV.0 AUG. 1994 PRINTED IN JAPAN (IMPRIME AU JAPON)
the copy count/ratio indicator indicates 'P', and the Add Paper message flashes. • Press the Copy Count/Zoom Set key and...
Service Manual - Page 197
SPECIAL TOOLS
You will need the following special tool(s) in addition to the standard tools set when servicing the machine. COPYRIGHT O 1994 CANONINC.
No. CANON PC720,740/750770 REV.O AUG.1994 PRINTED IN JAPAN omPRimt AU JAPON)
A - 29 Tool
Tool No.
1 Mirror positioning FY9-3009-020 tool (pair for front and ...
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