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 fvilanova on November 21st, 2015
Exposure Lamp
Hi ... Do you have a Canon PC940 exposure lamp for sale? The part number is fh7-3381-000. Do you know where I can buy one? Thank you for your help.
Requests for more information
Request from kellywoodrum on October 18th, 2021 2:49 PM
Did you ever find the FH7-3381-000 halogen bulb?
Did you ever find the FH7-3381-000 halogen bulb?
Current Answers
Answer #1: Posted by TechSupport101 on November 21st, 2015 6:15 AM
TechSupport101
Member since:
May 24th, 2013 Points: 12,171,305
Member since:
May 24th, 2013 Points: 12,171,305
Related Canon PC940 Manual Pages
Service Manual - Page 1
TVB00001PUD00001PUE00001PUH00001-
TVH00001-
AUG. 1999
COPYRIGHT © 1999 CANON INC.
TVC00001-
TVG00001- TVE00001-
PC940 F13-8436
PC941 F13-8437
PC950 F13-8231 F13-8241
PC960 F13-8434
PC980 F13-8232
PC981 F13-8233
TVD00001-
TVF00001PUF00001PUG00001-
TVJ00001-
FY8-13GA-000
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) UAA00001-
REVISION 0
PC860...
Service Manual - Page 7
Copier 1-2 B. Cross Section 1-13
IV. IMAGE FORMATION 1-20 A. Outline of Operations 2-3
D. Inputs to and Outputs from the DC Controller 2-7
CHAPTER 3 EXPOSURE SYSTEM
I . ...3-3 D. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
v FEATURES 1-1 II. Control Panel 1-15
V. ADF 1-8 III. EXPOSURE SYSTEM 3-9
A. Controlling the Scanning Lamp 3-9
III...
Service Manual - Page 10
... MALFUNCTIONS 11-61
A. Troubleshooting Malfunctions 11-61
V. ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 11-79 A. Lamp, Heater, Motor, Etc. 11-81 D. BLANK EXPOSURE (rear) CIRCUIT DIAGRAM A-34
N. SOLVENTS/OILS A-36
viii
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) SIGNALS AND
ABBREVIATIONS A-3 C. NOISE...
Service Manual - Page 14
... medium
2.
Mechanisms Item
Reproduction Charging Exposure Copy density adjustment Development Pickup
Separation Fixing Cleaning Original orientation
Desk top
Descriptions
Fixed
Halogen lamp (80 V/110 W for 120V-...copyboard)
Table 1-202
1-2
COPYRIGHT © 1999 CANON INC. SPECIFICATIONS
A. Copier
1. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) CHAPTER...
Service Manual - Page 49
Outline 3-1 B. Scanner Drive System ..........3-4
II. Controlling the Scanning Lamp 3-9
III.
Lens Drive Assembly ......... 3-31 C. Varying the Reproduction Ratio 3-2 C. EXPOSURE SYSTEM 3-9
A. Exposure System 3-37
COPYRIGHT © 1999 CANON INC. DISASSEMBLY/ASSEMBLY ..... 3-12 A. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) I. Lens Drive ...
Service Manual - Page 51
...of the scanning lamp to cut power to overheating of the exposure system. Figure 3-101
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-1 Item Lamp Scanning Scanner position...Scanner/lens drive motor (M2) Scanner thermistor (TH2)
By a fuse (blows in response to the lamp) • Thermal fuse (FU1; blows at 128°C)
Table 3-101
Copyboard glass Enlarge Reduce
...
Service Manual - Page 53
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-3 When the lens solenoid
(SL3) ... home position sensor (PS2)
Lens unit
Lens shift detecting shaft for side blanking lamp
DC controller PCB
Figure 3-103
COPYRIGHT © 1999 CANON INC. CHAPTER 3 EXPOSURE SYSTEM
C. In this time, the blanking lamp also moves in the direction of reduction ( ) by the work of the ...
Service Manual - Page 55
...sensor (Q751)
Scanner
I II
I
Scanning lamp(LA1)
Forward Reverse
I : Scanner home ...CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-5
if it is 130% or more, the scanner is moved forward as if for LTR (279 mm). Table 3-102 3. The forward movement distance of the scanner varies according to the falling edge of reference for A4 (297 mm); CHAPTER 3 EXPOSURE...
Service Manual - Page 56
... overheating of the scanner is moved to 6 cpm. Figure 3-106
3-6
COPYRIGHT © 1999 CANON INC.
Reference: While the copying speed is controlled to 6 cpm, the speed of the reverse... solenoid (SL1).
Controlling the Copying Speed The machine uses a halogen lamp for scanning, and the heat of the copyboard fast.
CHAPTER 3 EXPOSURE SYSTEM
4. At the end of copying, if the reading of the...
Service Manual - Page 59
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-9 EXPOSURE SYSTEM
A. tions: • Turning on/off the scanning lamp. • Controlling the intensity of the scanning lamp. • Monitoring the state (on/off) of the scanning lamp.
(Q101)
Intensity adjustment (Q900) signal
Serial communication
PWM_1KHz
Lamp activation signal
LAMP_ON
9
+
4- control
circuit
7
...
Service Manual - Page 60
CHAPTER 3 EXPOSURE SYSTEM
2. When LAMP_ON is '0',
The phase control circuit turns on /off . The arcing circuit turns on . The scanning lamp turns off . CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) The scanning lamp turns on . According to the scanner lamp active voltage signal, the microprocessor (Q900) on the composite power supply...
Service Manual - Page 61
... PCB sends the intensity adjust-
COPYRIGHT © 1999 CANON INC.
The composite power supply PCB sends the lamp activation signal to the scanning lamp active voltage signal. However, the intensity remains a specific value for the 220/240 V model) in
serial by way of actual voltage. CHAPTER 3 EXPOSURE SYSTEM
b.
Related Error Code
E220 • The...
Service Manual - Page 74
...
drive pulley [1], and wind it 1.5 times.
Then, secure the shorter end [3] as shown, and hook it between the No. 1 mirror mount [7] and the scanning lamp [9].
[8]
[7]
[9]
[5]
3-24
Figure 3-323
COPYRIGHT © 1999 CANON INC. CHAPTER 3 EXPOSURE SYSTEM
c. Face without a marking [2]
2) Lead the longer end [5] along the cable drive pulley [1] as shown
with adhesive tape...
Service Manual - Page 75
Figure 3-325
[12] [3] [9]
COPYRIGHT © 1999 CANON INC.
[7]
Figure 3-326
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-25 4) Hook the end of the longer end [5] on the hole [10] on the pulley [12] of the No. 2/3 mirror mount as shown; CHAPTER 3 EXPOSURE SYSTEM [10]
5) Free the shorter end [3], and...
Service Manual - Page 87
... the Scanning Lamp 1) Disconnect the power plug. 2) Remove the copyboard glass.
(See Chapter 7.III.C.1.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-37 Exposure System
1.
Figure 3-347
[4] [5]
[3] [2]
Figure 3-348
COPYRIGHT © 1999 CANON INC. then, remove the screw [4], and detach the reflecting plate [5]. CHAPTER 3 EXPOSURE SYSTEM [1]
4) Free...
Service Manual - Page 88
.../900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) Do not start the work if the scanning
lamp is
soiled, dry wipe it.
[6] [7]
Figure 3-349
3-38
COPYRIGHT © 1999 CANON INC. CHAPTER 3 EXPOSURE SYSTEM
5) While pushing the electrode mount [6] found at the rear of the machine in the direction of the scanning...
Service Manual - Page 89
... sure to Note When Mounting the Lamp When mounting the scanning lamp, be sure that the logo mark (or the name of the lamp is toward the front.
CHAPTER 3 EXPOSURE SYSTEM
Logo mark
(front) Scanning lamp
(mirror mount moving in reverse)
45 (approx.)
Figure 3-350
COPYRIGHT © 1999 CANON INC. 2. Further, be
sure that the protrusion...
Service Manual - Page 121
Figure 4-204
[5]
[4]
Caution: When mounting the blanking exposure unit, check to make sure that the blanking exposure unit PCBs are at the extreme ends and that the lens is positioned at the farthest left (141% position).
[3]
Figure 4-205
Lamp PCBs
Figure 4-206
COPYRIGHT © 1999 CANON INC.
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN...
Service Manual - Page 358
... signal RELAY DRIVE signal PRE-REGISTRATION ROLLER PAPER DETECTION signal SIDE BLANK EXPOSURE LAMP ON signal SCANNER MOTOR PULSE signal A SCANNER MOTOR PULSE signal B SCANNER...INITIAL ROTATION
LSTR
LAST ROTATION
SCFW
SCANNER FORWARD
SCRV
SCANNER REVERSE
STBY
STANDBY
COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
A-3 SIGNALS AND ...
Service Manual - Page 360
...fuse 1 FU1
Scanning lamp LA1
J17
FT6
FT5
Fixing heater H1 J16
1 2
J15
J2
FU2 Thermal fuse 2
J434
11 22
C. GENERAL CIRCUIT DIAGRAM
MAIN MOTOR DRIVER PCB
1.
Copier
J901
1 2 3 ...CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
J751 3 2 1
Q751 Pre-registration roller
paper sensor
SENSOR PCB
M
12
12
J601
J602
M2 Scanner/lens drive motor
SIDE BLANK EXPOSURE...
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