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CHAPTER 5 TROUBLESHOOTING

5-6

COPYRIGHT © 1998 CANON INC. CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)

2. Top Pick-Up Mode

1) Shift bits 1, 4, and 5 of the DIP switch

(DSW1) on the DADF controller PCB to
ON.

ON

12345678

LED1

LED2

SW1

TP1

J10

J15

J1

CB1

J2

J14

J12

J11

J7

J6

J13

J5

J9

J8

J3

6

1

B12

B1

2

1

1

3

1

2

1

3

1
2

13

1

14

2

A1

A12

1

1

1

1

9

10

1

4

2

2

8

1

7

1

DSW1

SW2

SW3

Figure 5-118

2) Place an A3 or 279.4

x

432.8-mm

(11"

x

17") sheet of copy paper (64 g/m

2

)

on the original tray.

3) Press the push switch (SW3) on the DADF

controller PCB once.
• The copy paper will be picked up and

stopped on the copyboard glass.

SW1

TP1

J10

J15

J1

CB1

J2

J14

J12

J11

J7

J6

J13

J5

J9

J8

J3

B12

B1

2

1

1

3

1

2

1

3

1
2

13

1

14

2

A1

A12

1

1

1

1

9

10

1

4

2

2

8

1

7

1

DSW1

SW2

SW3

Figure 5-119

4) Open the DADF slowly, and measure the

copy paper stop position l

4

; then, close the

DADF.

Standard: = 11.6

±

1 mm

Copyboard glass

Copy paper

4

4

Figure 5-120

5) To adjust the original leading edge stop

position, use the push switches (SW1 and
SW2) on the DADF controller PCB.
Each press on the push switch will shift
the original stop position by 0.34 mm.
When the correct position is attained,
press the push switch (SW3) once. The
copy paper will be discharged and the
new setting will be stored.

SW1

TP1

J10

J15

J1

CB1

J2

J14

J12

J11

J7

J6

J13

J5

J9

J8

J3

B12

B1

2

1

1

3

1

2

1

3

1
2

13

1

14

2

A1

A12

1

1

1

1

9

10

1

4

2

2

8

1

7

1

DSW1

SW2

SW3

Figure 5-121

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Содержание FY8-13FW-000DADF-A1

Страница 1: ...COPYRIGHT 1998 CANON INC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON REVSION 0 DEC 1998 FY8 13FW 000 DADF A1 ...

Страница 2: ...NS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS AND MAY CONTAIN INFOR MATION NOT APPLICABLE TO CERTAIN AREAS COPYRIGHT 1998 CANON INC Printed in Japan Imprimé au Japon Use of this manual should be strictly su pervised to avoid disclosure of confidential information Prepared by OFFI...

Страница 3: ...l construction and how its parts may be disassembled assembled and adjusted Chapter 4 Maintenance and Servicing provides tables of periodically replaced parts and consumables durables and scheduled servicing charts Chapter 5 Troubleshooting provides tables of maintenance inspection standards adjustments and problem identification image fault malfunction Appendix contains a general timing chart and...

Страница 4: ...C OPERATION I BASIC CONSTRUCTION 2 1 A Outline of the Electrical Circuitry 2 1 B Communication with the Copier 2 2 C Inputs to the DADF Controller PCB 2 3 D Outputs to the DADF Controller PCB 2 5 II BASIC OPERATION 2 6 A Outline 2 6 B Operation 2 7 C Detecting Originals 2 12 D Picking Up Originals 2 17 E Reversal 2 25 F Reduced Page Composition 2 27 G Delivery 2 34 H Stamping Function 2 40 I Contr...

Страница 5: ... Belt Unit 3 12 C Feeding Roller Unit 3 12 D Registration Roller 3 14 E Delivery Resersing Roller 3 16 F Delivery Roller Unit bottom Pick up Mode 3 20 G Delviery Roller Unit top Pick up Mode 3 20 H Reversing Guide 3 22 I Stopper Plate Solenoid 3 24 J Positioning the Paper Retaining Plate Solenoid SL2 3 24 K Positioning the Paper Deflecting Solenoid SL3 3 26 L Stamp Solenoid 3 26 M Feeding Belt 3 2...

Страница 6: ...OF THE ELECTRI CAL PARTS 5 24 A Motors Solenoids and Sensors 5 24 B PCB 5 26 IV VARIABLE RESISTORS LIGHT EMITTING DIODES AND CHECK PINS BY PCB 5 27 A DADF Controller PCB 5 27 B Indicator PCB 5 29 C DIP Switch Functions 5 30 V SELF DIAGNOSIS 5 32 A DADF Self Diagnosis 5 32 A GENERAL TIMING CHART A 1 B NAMES AND ABBREVIATIONS OF SIGNALS A 4 C DADF A1 GENERAL CIRCUIT DIAGRAM A 5 D DADF CONTROLLER CIR...

Страница 7: ... IMPRIME AU JAPON CHAPTER 1 GENERAL DESCRIPTION I FEATURES 1 1 II SPECIFICATIONS 1 2 A DADF A1 1 2 III NAMES OF PARTS 1 4 A External View 1 4 B Cross Section 1 4 IV OPERATION 1 5 A Original Set Indicator 1 5 B Warnings and Actions 1 5 C Routine Maintenance by the User 1 6 ...

Страница 8: ...Pick up starts with the top page Bottom pick up Pick up starts with the bottom page 2 Stamp Marking The machine can mark originals with a stamp to indicate that they have been processed for fax transmission 3 Original Size Identification The machine can identify the size of an original in terms of its length feeding direction and width for communication to its host copier ...

Страница 9: ...32 mm 11 17 If small size 50 sheets 5 5 mm high max A5 B5 B5R A4 A4R STMT LTR LTRR If large size 25 sheets B4 A3 LGL 279 432 mm 11 17 If small size 50 sheets A5 B5 B5R A4 A4R STMT LTR LTRR If large size 25 sheets B4 A3 LGL 279 432 mm 11 17 Single sided double sided reduce image composition Length feeding direction and width Possible in conjunction with the host copier Possible Possible Possible IP...

Страница 10: ...lowing must not be used as originals A transparency or paper with an opacity of 80 or less A carbon backed sheet A sheet with paste ups or binding A sheet with a cut off hole or tear A sheet with a clip or glue A sheet with curling wrinkling or creasing Caution Do not feed the same original more than 30 times to protect against damage ...

Страница 11: ...ay 6 Sub tray 7 Body cover 8 Original delivery tray B Cross Section 1 2 3 4 5 6 7 8 9 10 16 15 14 13 12 11 Figure 1 302 1 Delivery reversing roller 2 Paper deflecting plate 3 Feeding roller 4 Separation belt 5 Separation flapper 6 Pre separation guide 7 Delivery pick up roller 8 Paper retaining plate 9 Pick up roller 10 Delivery roller 11 Feeding belt link roller 12 Retaining rolls 13 Feeding belt...

Страница 12: ...larger than 297 mm A4 A3 For details see 3 Side Guide Lock on p 3 3 3 Place the originals with the first page on top 4 As needed set the appropriate copying mode on the copier 5 Press the copier s Copy Start key B Warnings and Actions If the Original Set indicator flashes while an original is being fed suspect a jam and perform the following 1 Remove the originals from the original tray 2 Open the...

Страница 13: ...ry wipe it 2 Feeding Belt Wipe it with water or alcohol 3 Other Parts Clean all other parts of the DADF if soiled using a solution of mild detergent then dry wipe them to remove any residue 4 Feeding Belt and Feeding Roller Execute cleaning mode in the copier s user mode 5 Stamp If markings start to be fuzzy replace the stamp using tweezers Stamp Tweezers Figure 1 402 Caution Do not touch the stam...

Страница 14: ...DF Controller PCB 2 3 D Outputs to the DADF Controller PCB 2 5 II BASIC OPERATION 2 6 A Outline 2 6 B Operation 2 7 C Detecting Originals 2 12 D Picking Up Originals 2 17 E Reversal 2 25 F Reduced Page Composition 2 27 G Delivery 2 34 H Stamping Function 2 40 I Controlling the Pick Up Motor 2 43 J Controlling the Belt Motor 2 45 K Detecting Original Jams 2 47 L Improper Placement of Originals 2 50...

Страница 15: ...CB A microprocessor CPU is used on the DADF controller PCB and the microprocessor reads the input signals from the sensors and the copier and generates signals used to drive DC loads motors solenoids at such times as programmed in advance Sensor Variable resistor DADF controller PCB CPU Q1 ROM Q2 RAM Q4 Communication IC Q3 24V J2 1 J1 6 5V 5 VDC power supply Power supply circuit Copierk Motor Sole...

Страница 16: ...e copier are communicated to the machine in an IPC communication method Likewise the operation states of the machine are communicated to the copier in an IPC communication If an error occurs in the IPC communication the copier s self diagnosis function turns on to indicate E400 or E712 on its control panel Communication IC Communication IC CPU CPU RSOUT RSIN Copier DADF Figure 2 102 ...

Страница 17: ... 3 2 1 3 2 3 1 2 2 4 1 2 J3 NO COM NO Upper cover switch Original tray paper sensor Registration paper sensor Upper cover sensor Pick up roller sensor Delivery sensor 1 Pick up sensor DADF controller PCB When the RDF is open 0 When the upper cover is open 0 When an original blocks the sensor 1 When an original blocks the sensor 1 When the upper cover is open 0 The light blocking plate is at the se...

Страница 18: ... S13 S14 J219 J14 3 2 1 5V 5V 5V WIDTH RSS ECLK RCLK BCLK1 FCLK TURNS EJTS2 J8 3 2 1 J101 3 2 1 J218 1 2 3 J8 7 8 9 3 2 1 Display PCB DADF controller PCB When an original is detected 1 When the light blocking plate is at the sensor While the feeder motor is rotating alternates 1 and 0 While the feeder motor is rotating alternates 1 and 0 While the feeder motor is rotating alternates 1 and 0 When a...

Страница 19: ...s a marking on the original SL4 J220 1 2 J14 9 10 24V SMPSL Clutch When 0 the clutch CL1 turns on CL J13 1 2 24V CL Brake When 0 the brake BK1 turns on BK J6 1 2 24V BK Pick up motor See p 2 43 M1 J12 1 2 Feeder motor When 0 the feeder motor M2 turns on M2 J11 1 2 24V FMPWM Belt motor Delivery motor See p 2 45 M3 J7 1 2 When 0 the delivery motor M5 turns on M5 J14 8 7 24V EMPWM Re circulation moto...

Страница 20: ...signal Feeder belt brake drive signal Belt motor clock signal Clutch drive signal Feeder motor clock signal Feeder motor drive signal Reversal feeder paper detection signal Paper deflecting plate solenoid drive signal Delivery detection signal 1 Pick up registration signal Pick up paper detection signal Upper cover open closed detection signal 2 Original tray paper signal Pick up roller home posit...

Страница 21: ...5 Double sided original to double sided copy Using auto duplexing unit 6 Top pick up mode original feeding The machine feeds originals in any of the following five ways according to the instructions from the copier 1 Bottom Pick Up Mode The machine picks up the originals on the original tray from the bottom last page of the stack and places each on the copyboard glass After copying it moves the or...

Страница 22: ...ing the face 1st side and the back 2nd side of an original the machine automatically reverses the original Figure 2 203 Pick Up Operation Picks up an original for the 1st side Reverses the original from the 1st side to the 2nd side Scanner Copies the 2nd side Reverses the original from the 2nd side to the 1st side Copies the 1st side Delivers the original ...

Страница 23: ...ble 2 201 shows the sizes of originals that may be used in the machine Figure 2 204 A B configured A5 B5 A4 INCH configured STMT LTR Table 2 201 1st original 2nd original Picks up the 1st original Reverses the original from the 1st side to the 2nd side Picks up the 2nd original While reversing the 1st original picks up the 2nd original At this time the order of originals is switched Feeds the 2nd ...

Страница 24: ...ck Up Feeding The machine picks up the originals on the original tray from the top first page of the stack and places them on the copyboard glass Each time an original has been read the machine moves the original from the copyboard glass to the original delivery tray Figure 2 205 Placement Pick up Reading Delivery 1 Delivery 2 ...

Страница 25: ...uipped with a sorter this mode enables sorting of copies Originals are copied one after another until one set of copies have been made and this operation is repeated until as many sets as desired have been made Operation 1 Set originals on the original tray 2 Select sort mode on the copier 3 Enter a number of sets on the copier s keypad 4 Press the Copy Start key ...

Страница 26: ...ce Absence of an Original The presence absence of an original on the original tray is detected by the original tray paper sensor PS1 When an original is set on the original tray the light between the original tray paper sensor S1 and the prism is blocked causing the original tray paper sensor S1 to generate the original detection signal EMPS In response to the original detection signal EMPS the DA...

Страница 27: ...es of an original and the registration roller clock sensor detects the rotation of the registration roller while the original moves past the sensor The rotation of the registration roller is converted to the length of the original DADF controller PCB Registration paper sensor Registration roller Registration roller clock sensor Pick up detection signal Registration roller clock signal Figure 2 208...

Страница 28: ...s the original will be identified as being of a non default size Table 2 202 e Inch Model In vertical direction a deviation of 10 mm is ignored in horizontal direction a deviation of 5 mm is ignored outside the ranges the original will be identified as being of a non default size Table 2 203 For original length a deviation of 10 mm is ignored for original width a deviation of 5 mm is ignored outsi...

Страница 29: ...S14 RSS Figure 2 210 b Detecting the Trailing Edge of the Last Original A copier with a long paper path from the cassette to the drum is designed to pick up copy paper early to speed up copying work As such when the machine picks up the last original and places it on the copyboard glass the next paper is likely to be kept in wait To accommodate this the machine is designed to pick up originals to ...

Страница 30: ...als however the machine must find out whether there is an odd or even number of originals Holding the copier from making copies the DADF picks up and delivers the originals to find out how many there are Reference The machine can pick up the last page of originals first When making double sided copies of single sided originals it must decide whether the last page must be on the face or back of a s...

Страница 31: ...h characterized by its own method 1 Top pick up starting with the top of a stack of originals top separation 2 Bottom pick up starting with the bottom of originals bottom separation In bottom pick up mode the last page of the stack of originals on the original tray is picked up first on the other hand in top pick up mode the first page will be picked up first Top pick up mode Figure 2 213 Bottom p...

Страница 32: ...s up the rear and the front of the separation belt operating in connection with the switching arm move down to switch the construction of the pick up assembly for bottom pick up mode When the pick up motor starts to rotate counterclockwise the arm on the pick up roller shaft transmits its drive to the original guide and the switching arm In response the original guide moves downward On the other h...

Страница 33: ...en the separation belt and the feeding roller to prevent double feeding Caution The paper retaining plate is always brought down when picking up the first original For the second and subsequent originals the retaining plate is brought down only when pick up fails because of slips of the pick up roller or the like i e the pick up sensor S7 does not detect an original within 500 msec after the pick ...

Страница 34: ...4 Picking Up the 2nd Original When the original reaches a specific point on the copyboard glass the copier s scanner starts to move forward At the same time the second original is picked up if of small size Figure 2 220 Edged out by the registration roller Scanner Small size Large size A5 B5 B5R A4 A4R STMT LTR LTRR B4 A3 LGL 279mm 432mm 11 17 Table 2 205 Caution In case of small size originals th...

Страница 35: ...ing belt CCW rotation Pick up sensor Registration paper sensor Reversal sensor Delivery sensor 1 Pick up motor Feeder motor Belt motor Clutch Paper stopper plate solenoid Paper retaining plate solenoid Brake S7 S3 S8 S6 M1 M2 M3 CL SL1 SL2 BK Original set Copy Start key ON Original picked up Original fed Scanner started 2nd sheet picked up Fed Delivered Scanner started Arching CW CCW CW CCW CW CW ...

Страница 36: ... the stack of originals then the first page of the stack is picked up After pick up the original is fed between the separation belt and the feeding roller to prevent double feeding The direction of rotation of the separation belt and the feeding roller is the opposite of the direction in bottom pick up mode Separation belt Pick up sensor Feeding roller Paper stopper plate Paper retaining plate 1st...

Страница 37: ... glass Registration roller Feeding roller Feeding belt Figure 2 224 4 Picking Up the 2nd Original When the original reaches a specific position on the copyboard glass the copier s scanner starts to move forward At the same time the 2nd original is picked up if of small size In the case of a large size original the 2nd original is picked up after delivery of the first original Edged out by the regi...

Страница 38: ...eeding belt rotates clockwise The feeding belt rotates counterclockwise CW CCW Pick up sensor S7 S3 S7 M1 M2 M3 CL BK SL4 SL2 SL1 Registration paper sensor Delivery sensor 2 Pick up motor Feeder motor Belt motor Clutch Brake Stamp solenoid Paper retaining plate solenoid Stopper plate solenoid Copy Start key ON 1st original picked up fed Scanner started 2nd original picked up 2nd original fed Scann...

Страница 39: ...eding belt is rotated counterclockwise to reverse feed the original on the copyboard glass 3 Reversal Delivery Switching The paper deflecting solenoid SL3 is turned on to open the paper deflecting plate so that the original is moved back to the copyboard glass reversing the original When the second side of the original is set on the copyboard glass the scanner starts to move forward While the scan...

Страница 40: ...ing belt rotates CW CCW The feeding belt rotates CCW Pick up sensor S7 S3 S8 S6 M1 M2 M3 SL3 CL BK Registration paper sensor Reversal sensor Delivery sensor 1 Pick up motor Feeding motor Belt motor Paper deflecting plate solenoid Clutch Brake 1st side picked up 1st side copied 1st side reversed 2nd side copied Reversed fed 3rd side copied CCW CCW CCW CW CW Low speed Low speed ...

Страница 41: ... starting with the last original requiring reordering The machine takes advantage of its reversing mechanism to reorder originals 2 Bottom Pick Up Mode 1 Picking Up the 1st Original The 1st original is picked up and is placed on the copyboard glass For details see D 3 Pick Up in Bottom Pick Up Mode on p 2 19 1st original 4th original 3rd original 2nd original Figure 2 231 Delivery reversing roller...

Страница 42: ...roller Feeding belt Overlap Figure 2 236 4 Separating the 2nd Original Feeding the 1st Original The paper deflecting plate solenoid SL3 is turned on to open the paper deflecting plate The 2nd original is picked up and is stopped as the registration roller At the same time the feeding belt is rotated clockwise to move the 1st original to the delivery reversing roller 5 Feeding the 1st and 2nd Origi...

Страница 43: ...g belt Sheet to sheet distance Delivery reversing roller Feeding belt 1st original 2nd original Figure 2 239 After the sheet to sheet distance between two originals is adjusted to a specific value the clutch CL is turned on to eliminate the difference in speed between the delivery reversing roller and the feeding belt then the two originals are moved to the copyboard glass 8 Delivering the 1st Ori...

Страница 44: ...riginal 1st original 2nd Original 10 Feeding the 2nd Original The feeding belt is rotated clockwise slowly to move the 2nd original to the delivery reversing roller 11 Delivering the 2nd Original and Picking Up the 3rd Original The clutch CL is turned on to eliminate the difference in speed between the delivery reversing roller and the feeding roller the 2nd original is delivered and the 3rd origi...

Страница 45: ...The feeding belt rotates counterclockwise CW CCW CCW CCW CCW CCW CCW CCW CW CW CW CW CW Pick up sensor S7 S3 S8 S6 M1 M2 M3 CL BK SL3 Registration paper sensor Reversal sensor Delivery sensor 1 Pick up motor Feeder motor Belt motor Clutch Paper deflecting plate solenoid Brake 1st original picked up 1st original reversed 2nd 1st original fed Copied 1st 2nd original delivered 3rd original picked up ...

Страница 46: ...s For details of pick up operation see D 4 Top Pick UP on p 2 22 Figure 2 245 2nd original 1st original 2 Positioning the 1st Side Original Feeding the 2nd Side Original The 1st original is moved back to adjust the sheet to sheet distance Further two originals are moved simultaneously and stopped at specific positions Figure 2 246 Figure 2 247 3 Feeding the 1st Side and 2nd Side Originals Simultan...

Страница 47: ... Operations reduced page composition top pick up Figure 2 249 The pick up motor rotates in the direction opposite of copying mode The feeding belt rotates clockwise The feeding belt rotates counterclockwise CW CCW Pick up sensor S7 S3 M1 M2 M3 CL BK SL2 M5 Registration paper sensor Delivery sensor 2 Pick up motor Feeder motor Belt motor Clutch Brake Paper retaining solenoid Delivery motor Copy Sta...

Страница 48: ...riginals in either of the following two modes 1 Bottom pick up mode 2 Top pick up mode In the case of bottom pick up mode the machine delivers the original to the original tray in the case of top pick up mode it delivers the original to the original delivery tray Figure 2 250 Bottom Pick Up Mode Figure 2 251 Top Pick up Mode Original tray Original delivery tray ...

Страница 49: ...e 2 254 Feeding belt Scanner 2 Delivery Reversing Roller Delivery The original fed by the feeding belt is moved farther between the delivery reversing roller and the feeding roller In the case of a small size original two originals are picked up simultaneously Reference When the leading edge of an original is moved about 15 mm from the reversal sensor S8 the feeding belt starts to rotate countercl...

Страница 50: ... original Figure 2 255 Figure 2 256 b Sequence of Operations large size and mix size mode 2nd original pick up delivery Pick up sensor Arching S7 S3 S8 S6 M1 M2 M3 CL BK Registration paper sensor Reversal sensor Delivery sensor 1 Pick up motor Feeder motor Belt motor Clutch Brake 1st original deliveried 2nd original picked up 2nd original separated 2nd original copied 2nd original delivered CCW CW...

Страница 51: ... rotates counterclockwise Scanner forward 3rd original separated 2nd original copied 2nd original delivered 3rd original picked up Scanner moved forward 4th original separated 3rd original copied 3rd original delivered 4th original picked up CW CCW CW CW CCW CCW Figure 2 257 Figure 2 258 Low speed The feeding belt rotates clockwise The feeding belt rotates counterclockwise CW CCW CW CCW Pick up se...

Страница 52: ...riginal about 30 mm to maintain the sheet to sheet distance from the 2nd original Figure 2 259 Figure 2 260 Figure 2 261 1st original 2 Delivering the 1st Original Picking Up the 2nd Original The clutch CL is turned on to eliminate the difference in speed between the delivery reversing roller and the feeding belt the 1st original is moved for delivery and the 2nd original is picked up 3 Delivery t...

Страница 53: ...oved for 20 mm Low speed Low speed The pick up motor rotates in the direction opposite of copying mode The feeding belt rotates clockwise The feeding belt rotates counterclockwise CW CWW c Sequence of Operations small size pick up delivery w o stamp marking Figure 2 263 S7 S3 M1 M2 M3 CL BK SL4 SL2 M5 Scanner started 2nd original picked up 2nd original moved Scanner started 3rd original pick up 3r...

Страница 54: ...is selected A stamp marking is put on originals in response to a command from the copier the stamping solenoid SL4 is driven to place a spot about 3 mm in diameter on originals A marking is on the face of each original as follows Mode Single sided original mode Double sided original mode Reduced page compositionmode Position On each original On 1st side On each original Table 2 206 The stamp marki...

Страница 55: ...m the point at which the delivery sensor 2 S6 detects the leading edge When the original is stopped the DADF controller PCB generates the stamp solenoid drive signal SMPSL to drive the stamp solenoid SL4 causing the stamp face mounted to the tip of a plunger to hit against the original Stamping solenoid SL4 Stamp Fax original SMPSL Delivery sensor 2 S12 DADF controller PCB Figure 2 265 Reference A...

Страница 56: ...EV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON 3 Sequence of Operations Belt motor Delivery sensor 2 Stamping solenoid Delivery motor M3 S12 SL4 M5 Delivery feeding Stamping Delivery tray delivery Low speed Original length Feeding about 20mm approx equivalent Figure 2 266 ...

Страница 57: ...al SDIR and pick up motor rotation speed control signal SMPWM In response the drive circuit drives the pick up motor according to these three signals The control circuit is not equipped with a circuit used to provide the microprocessor Q1 with feed back indicating the state of pick up rotation As such the pick up motor rotation speed control signal SMPWM remains constant at all times and no correc...

Страница 58: ...able 2 207 Belt motor drive signal SMON 1 1 1 1 0 Belt motor rotation direction signal SDIR 1 1 0 0 1 0 Belt motor rotation speed control signal SMPWM Pulses 0 Pulses 0 1 0 Pick up roller operation The pick up roller rotates in copier mode pick up direction counterclockwise The pick upper roll rotates by inertia in copier mode pick up direction The pick up roll rotates in fax mode pick up directio...

Страница 59: ... motor rotation speed control signal BMPWM to the drive circuit When the belt motor starts to rotate the belt motor clock sensor S10 sends the belt motor clock signal BCLK1 to the microprocessor Q1 In response the microprocessor Q1 compares the belt motor clock signal BCLK1 against the rotation speed stored in memory to vary the belt motor rotation speed control signal PMPWM to make a match causin...

Страница 60: ...ng Belt The feeding belt rotates in pick up direction counterclockwise The feeding belt rotates by inertial in pick up direction counterclockwise The feeding belt rotates in copier mode delivery direction clockwise The feeding belt rotates by inertial in copier mode delivery direction clockwise The feeding belt stops Table 2 208 3 Protecting the Belt Motor from Overcurrent At times overcurrent can...

Страница 61: ...he form of a code Some copiers show such codes in service mode Jam type Original retraction Pick up delay Registration delay Sensor type S1 S7 01H 02H 03H S3 S7 S7 Description Code Pick up The sensor S7 does not detect the leading edge of an original 1500 msec after the pick up motor M1 has turned on and in addition the sensor S1 does not detect an original The sensor S7 does not detect the leadin...

Страница 62: ...er the sensor S8 has detected an original The sensor S3 does not detect the trailing edge of an original original size 180 mm after the sensor S8 has turned on At time of original delivery the sensor S6 does not detect an original 100 mm or 250 msec after the sensor S8 has detected the leading edge of an original The sensor S6 does not detect the trailing edge of an original 100 mm or 250 msec aft...

Страница 63: ...mproperly placed original jams are identified starting with the detection of a condition for the second and subsequent originals Deli very Delivery failure DADF open Upper cover open Re circulating lever idle rotation S3 S6 MS1 MS2 S4 S13 At time of delivery in bottom separation pick up mode the original fails to stop e g the original that has been picked up is longer than the original being deliv...

Страница 64: ...tion sensor Figure 2 270 An improperly placed original can cause a jam or damage to the original The machine makes a check to ensure that all originals are placed properly to prevent jams or damage The timing of a check is stored in the microprocessor on the DADF controller and detection is made in terms of the presence absence of paper over a specific sensor When the machine detects an improperly...

Страница 65: ...e original tray after jam removal is as follows see Note The re circulating lever does not fall under the original tray not enabling detection of the last original The re circulating lever fell under the original tray while an original is being processed The size of the original that is picked up is of a non default size Original copied Original placed on tray Stops operation immediately upon dete...

Страница 66: ...etting To reset remove all originals from the original tray and then place the originals once again Some copiers indicate an appropriate message Be sure to follow such a message when placing the originals In reduced page composition mode on the other hand remove the originals from the original tray and open the DADF once As many as10 originals are placed on the original tray The 8th original jams ...

Страница 67: ...the power to protect the circuit in response to overcurrent 24 VL is converted by the regulator into 5 V and is used by the logic system and sensors The fuse resistance R26 melts in response to overcurrent in the circuit thereby cutting off the power and protecting the circuit Figure 2 301 RF switch MS1 J2 3 COM J2 4 NO J3 1 COM J3 2 NO Upper cover switch MS2 Circuit breaker CB1 Fuse resistance R2...

Страница 68: ... 3 11 B Removing the Separation Belt Unit 3 12 C Feeding Roller Unit 3 12 D Registration Roller 3 14 E Delivery Resersing Roller 3 16 F Delivery Roller Unit bottom pick up mode 3 20 G Delviery Roller Unit top pick up mode 3 20 H Reversing Guide 3 22 I Stopper Plate Solenoid 3 24 J Positioning the Paper Retaining Plate Solenoid SL2 3 24 K Positioning the Paper Deflecting Solenoid SL3 3 26 L Stamp S...

Страница 69: ... inspecting and repairing the inside of the machine 1 Removing the DADF 1 Turn on off the copier 2 Disconnect the communication cable of the DADF from the copier 3 Open the DADF fully Figure 3 102 4 Go to the rear of the copier and lift the DADF upright to remove Figure 3 103 Reference The feet of the hinges of the machine are equipped with a locking mechanism designed to prevent slippage When det...

Страница 70: ...n mounting screws and detach the body cover 2 1 Figure 3 104 1 1 1 Figure 3 105 1 1 Figure 3 106 2 Remove the two mounting screws 2 and detach the original tray Caution The original tray is connected by means of a cable Take extra care not to damage the cable during work 3 2 Figure 3 107 3 While avoiding the original tray detach the body cover and the front cover ...

Страница 71: ...n When making copies be sure to adjust the side guide to the size of the original If the side guide is improperly positioned the original will tend to move askew B Switches The machine is equipped with two microswitches DADF switch MS1 and upper cover open closed switch MS2 so that the machine will not operate when it or its upper cover is open 1 Adjusting the DADF Switch MS1 1 Remove the body cov...

Страница 72: ...ed 3 Mounting the Original Width Detecting Volume 1 Loosen the two screws 2 and detach the side guide 1 2 1 Figure 3 111 2 Open the side guide at the rear 3 and the front 4 fully 4 3 Figure 3 112 3 Mount the gear 5 5 Figure 3 113 4 Turn the original width detecting volume 6 fully in the direction of the arrow then turn it in the opposite direction equivalent of half a tooth so that it is as indica...

Страница 73: ...unt the side guide lock removed in step 1 and execute adjustments of the original width detecting volume For adjustments see p 5 18 C Adjusting the DADF Height 1 Remove the copier s rear side plate Loosen the locking nut 1 and turn the height adjusting screw 2 so that the left right rear foot is 0 2 0 1 mm from the horizontal size plate of the copyboard glass 1 2 Figure 3 116 2 After making adjust...

Страница 74: ...or J12 2 from the DADF controller PBC 1 1 2 Figure 3 201 4 Remove the screw 3 and remove the cable guide 4 3 4 Figure 3 202 5 Disconnect the connector 5 of the upper cover sensor S4 6 Remove the two mounting screws 6 and detach the pick up motor unit 7 6 6 5 7 Figure 3 203 B Removing the Feeder Motor Unit 1 Remove the pick up motor unit 2 Remove the tie wrap as necessary 3 Disconnect the connector...

Страница 75: ... 3 4 4 Figure 3 205 5 Detach the two drive belts 5 and detach the feeder motor unit 6 5 6 Figure 3 206 C Belt Motor 1 Removing the Belt Motor 1 Remove the DADF from the copier 2 Remove the feeder motor unit 3 Remove the tie wrap as necessary 4 Disconnect the connectors J6 1 J7 3 and J13 3 of the DADF controller PCB 3 1 2 Figure 3 207 5 Disconnect the connector 4 of the belt motor clock sensor S10 ...

Страница 76: ...nd detach the belt motor unit 5 5 7 8 Figure 3 210 2 Making Adjustments 1 Secure the belt motor unit 2 in place with three screws so that the displacement is 3 1 mm when the timing belt is pushed under a force of 3 1 mm 1 3 2 50mm approx 200 20g 3 1 m m The spring gauge must be capable of measuring 600 g or so CK 0058 Figure 3 211 2 Pull the belt tensioner 4 with a force of 500 50 g and secure it ...

Страница 77: ... Removing the Clutch Unit 1 Remove the belt unit 1 2 Detach the drive belt 2 1 2 Figure 3 213 3 Remove the E ring 3 4 Displace the bush 4 and remove the clutch unit 5 4 3 5 Figure 3 214 Caution When mounting the clutch unit be sure that the slip stop 6 of the clutch engages with the stopper 7 of the mount 6 7 figure 3 215 ...

Страница 78: ...ery Motor 1 Remove the body cover 2 Disconnect the three connectors 1 1 Figure 3 216 3 Remove the two screws 2 and free the cable 4 from the cable retainer 3 then detach the delivery monitor unit 5 5 3 2 4 2 Figure 3 217 4 Disconnect the connector 6 and remove the two screws 7 then detach the delivery motor 8 7 8 6 Figure 3 218 ...

Страница 79: ...emove the two screws 1 and detach the original tray mount 2 1 2 1 Figure 3 301 3 Remove the screw 3 and detach the paper retaining solenoid 4 4 3 Figure 3 302 4 Remove the two screws 5 and detach the original inlet guide plate 6 5 6 5 Figure 3 303 5 Rotate the pick up roller 7 so that it is as shown in the figure then remove the screw 8 and detach the pick up roller 8 7 Figure 3 304 ...

Страница 80: ...5 3 Remove the two screws 2 and detach the separation belt unit 3 together with the fixing plate 4 3 2 4 2 Figure 3 306 C Feeding Roller Unit 1 Remove the body cover 2 Remove the original tray mount 3 Remove the original inlet guide plate 4 Remove the separation belt unit 5 Remove the four screws 5 and detach the separation guide plate 6 5 6 5 Figure 3 307 6 Remove the two screws 8 and detach the ...

Страница 81: ...11 and detach the idler gear 12 9 Remove the E ring 13 and detach the gear 14 and the timing belt 15 Take care not to drop the pin 12 14 13 11 15 Figure 3 310 10 Remove the E ring 16 and shift the arm 17 and the gear 18 in the direction of the arrow 16 17 18 Figure 3 311 11 Remove the E ring 19 and shift the bush 20 in the direction of the arrow then remove the feeding roller unit 21 21 19 20 Figu...

Страница 82: ... Remove the body cover 3 Remove the feeding roller unit 4 Remove the pick up motor unit 5 Remove the four screws 2 and detach the right hinge unit 1 2 2 1 2 Figure 3 313 6 Remove the E ring 3 and detach the bush 4 4 3 Figure 3 314 7 Remove the screw 5 and detach the solenoid mount 6 5 6 Figure 3 315 8 Remove the spring 7 and the screw 8 then detach the arm 9 7 9 8 Figure 3 316 ...

Страница 83: ...0 and the bush 11 then detach the link arm shaft 12 10 11 12 Figure 3 317 10 Remove the two screws 13 and remove the sensor mount 14 14 13 Figure 3 318 11 Remove the E ring 15 tension spring 16 bush 17 and two screws 18 16 17 18 15 18 Figure 3 319 12 Remove the grip ring 19 clock plate 20 sensor mount 21 and spring 22 22 21 20 19 Figure 3 320 ...

Страница 84: ...23 tension spring 24 bush 25 and two screws 26 then detach the registration roller 27 25 26 24 23 27 26 Figure 3 321 E Delivery Reversing Roller 1 Remove the DADF from the copier 2 Remove the body cover 3 Remove the registration roller 4 Remove the two E rings 1 gear 2 timing belt 3 and bush 4 Take care not to drop the pin 3 1 2 1 4 Figure 3 322 ...

Страница 85: ...MECHANICAL SYSTEM 5 Remove the gear 10 Take care not to drop the pin 5 Figure 3 323 Reference Remove the gear while unlocking it Figure 3 323 a 6 Remove the grip ring 6 and remove the bush 7 7 6 Figure 3 324 7 Remove the spring 8 and the screw 9 then detach the lower guide stopper 10 10 9 8 Figure 3 325 ...

Страница 86: ...TED IN JAPAN IMPRIME AU JAPON 8 Remove the spring 11 11 Figure 3 326 9 Remove the screw 13 and detach the sensor cover then disconnect the sensor connector 14 and remove the registration sensor 15 by lifting it 13 12 Figure 3 327 14 15 Figure 3 328 10 Remove the paper guide 16 16 Figure 3 329 ...

Страница 87: ... SYSTEM 11 Remove the two screws 17 at the front and the two screws 18 at the rear then detach the reversing plate 19 to the bottom 17 Figure 3 330 front 19 18 Figure 3 331 rear 12 Remove the four screws 20 and remove the front plate 21 21 20 Figure 3 332 13 Remove the delivery reversing roller 22 22 Figure 3 333 ...

Страница 88: ...he body cover 2 Remove the pick up motor 3 Remove the screw 1 1 2 1 Figure 3 334 4 Remove the E ring 2 2 Figure 3 335 5 Remove the screw 3 and remove the fixing pin 4 then detach the delivery roller unit 5 6 5 5 Figure 3 336 G Delivery Roller Unit top pick up mode 1 Remove the body cover 2 Remove the screw 1 and the spring 2 then disconnect the connector 3 8 7 Figure 3 337 ...

Страница 89: ...MPRIME AU JAPON 3 21 CHAPTER 3 MECHANICAL SYSTEM 3 Remove the two screws 4 and detach the timing belt 5 and the motor unit 6 4 5 6 4 Figure 3 338 4 Remove the screw at the front and the two screws 8 at the rear then detach the delivery roller unit 9 8 7 9 back figure 3 339 ...

Страница 90: ... IN JAPAN IMPRIME AU JAPON H Reversing Guide 1 Remove the body cover 2 Remove the gear 1 and the timing belt 2 1 2 Figure 3l 340 Reference Remove the gear while unlocking it Figure 3 341 3 Disengage the front side 3 and the rear side 4 of the reversing guide spring 3 Figure 3 342 4 Figure 3 343 ...

Страница 91: ...he screw 5 and detach the solenoid unit 6 6 5 Figure 3 344 5 Remove the reversing sensor jack 7 and the grounding cord 8 8 7 Figure 3 345 6 Remove the screw 9 screw 11 and fixing pin 12 then detach the reversing guide 13 Caution When mounting the fixing pin be sure that its position is as it was initially 13 12 11 10 9 Figure 3 346 ...

Страница 92: ...two screws and disconnect the connector 4 then remove the stopper plate solenoid 5 3 5 4 Figure 3 348 2 Making Adjustments 1 Secure the solenoid 1 in place where the stopper 3 rubber block butts against the rear edge of the stopper plate 2 when the plunger of the solenoid 1 is at the end of its stroke 1 2 3 Figure 3 349 J Positioning the Paper Retaining Plate Solenoid SL2 1 Prepare test strips Cut...

Страница 93: ... pick up roll for top pick up mode is in firm contact with the pick up roll 3 when the plunger 1 of the paper retaining solenoid is fully pushed 2 3 1 Figure 3 351 6 Push in s test strip prepared in step 1 between the delivery roller and the pick up roller while pushing the plunger of the paper retaining solenoid fully Check to make sure that the delivery roller rotates when the rear and the front...

Страница 94: ...1 and tighten it when the stroke of the solenoid 2 is 4 5 mm 1 2 4 5mm Figure 3 353 L Stamp Solenoid 1 Remove the delivery roller unit top pick up mode 2 Remove the screw 1 and spring 2 then detach the flapper plate 3 3 1 2 Figure 3 354 3 Remove the E ring 4 and the bush 5 5 4 Figure 3 355 4 Remove the two E rings 6 gear 7 and bush 8 the detach the delivery roller 9 Take care not to drop the pin 6...

Страница 95: ...he front and the two screws 11 at the rear then remove the paper guide plate 12 11 12 10 Figure 3 357 6 Remove the sensor flag 13 and disconnect the connector 14 13 14 Figure 3 358 7 Remove the three screws 15 and detach the delivery roll mount 16 15 16 Figure 3 359 8 Remove the delivery roll 17 and detach the stamp solenoid mount 18 18 17 Figure 3 360 ...

Страница 96: ...olenoid mount 18 then detach the stamp solenoid 19 18 20 19 Figure 3 361 M Feeding Belt 1 Remove the body cover 2 Remove the spring 1 at the front 1 Figure 3 262 3 Free the spring 2 from the hook 3 at the rear and engage it on the hook 4 designed to keep the spring temporarily 2 4 3 Figure 3 363 4 Remove the two screws 5 and detach the solenoid 6 5 6 Figure 3 364 ...

Страница 97: ...PRIME AU JAPON 3 29 CHAPTER 3 MECHANICAL SYSTEM 5 Remove the four screws 8 and detach the side plate 7 8 7 8 Figure 3 365 6 Remove the three screws 9 and detach the delivery unit linking plate 10 9 10 9 Figure 3 366 7 Pull off the feeding belt 11 to the front 11 Figure 3 367 ...

Страница 98: ... 402 3 Press the push switch SW3 to execute cleaning of the separation belt 4 When cleaning has ended press the push switch SW3 and shift all bits of the DIP switch to OFF 5 Mount the DADF controller cover B Sensors The machine s feeding path is equipped with two transmission type sensors original sensor S1 registration sensor S3 and three photointerrupers pick up sensor S7 delivery sensor S6 reve...

Страница 99: ...igure 3 404 2 Reflecting Face original sensor 1 Clean the reflecting face 2 of the original sensor while keeping the delivery roller 1 down 1 2 Figure 3 405 3 Registration Sensor S3 1 Remove the separation belt unit 2 Remove the four screws 2 and detach the separation guide plate 1 2 1 2 Figure 3 406 3 Remove the two screws 4 and detach the inside guide plate 4 3 4 Figure 3 407 ...

Страница 100: ...PON 4 Clean the registration sneers S3 4 mounted on the inside the plate 3 3 4 Figure 3 408 4 Registration Sensor LED3 1 Remove the screw 3 and detach the registration sensor LED3 cover 2 of the reversing roller unit 1 1 3 2 Figure 3 409 2 Clean the light emitting face of the registration sensor LED3 4 4 Figure 3 410 ...

Страница 101: ...of the arrow 1 2 Figure 3 411 3 Clean the side shaded of the separation flapper both front and rear coming into contact with paper with alcohol Be sure to keep the strokes in feeding direction Figure 3 412 D Separation Guide 1 Remove the separation belt unit See the instructions given for the separation belt unit 2 Remove the front separation flapper and the front separation flapper See the instru...

Страница 102: ...igure 3 503 V FEEDING The machine does not have parts requiring periodical lubrication Apply lubricant if you have replaced gears or the like Caution When applying lubricant take care that the timing belt and the cable is not soiled with lubricant Otherwise be sure to wipe the part clean A Pick Up Drive Assembly Apply lubricant to the following parts 1 Rear Pick up motor unit Apply here CK 0551 02...

Страница 103: ...COPYRIGHT 1998 CANON INC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON 3 35 CHAPTER 3 MECHANICAL SYSTEM ...

Страница 104: ...998 CANON INC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON CHAPTER 4 MAINTENANCE AND SERVICING I PERIODICALLY REPLACED PARTS 4 1 II CONSUMABLES AND DURABLES 4 1 III SCHEDULED SERVICING CHART 4 2 ...

Страница 105: ... future data As of Dec 1998 No 1 2 3 4 5 6 7 8 9 10 Parts name Feeding belt Pick up roller Separation belt for top pick up mode Separation belt for bottom pick up mode Feeding roller belt for top pick up mode Feeding roller belt for bottom pick up mode large Feeding roller belt for bottom pick up mode small Separation flapper rear Separation flapper front Stamp ink cartridge Parts No FC1 7815 000 ...

Страница 106: ...ation roller Registration paper sensor S3 Separation belt pick up assembly Separation flapper rear front Feeding roller pick up assembly Original tray paper sensor S1 Delivery roller for top separation mode Pick up roller pick up assembly Feeding belt Delivery roller for bottom pick up mode Stamp cartridge Copyboard glass retainer right Copyboard lass Pre separation guide Vertical size plate Inter...

Страница 107: ...B Electrical System 5 17 II TROUBLESHOOTING 5 20 A Troubleshooting Malfunctions 5 20 III ARRAIGMENT OF THE ELECTRI CAL PARTS 5 24 A Motors Solenoids and Sensors 5 24 B PCB 5 26 IV VARIABLE RESISTORS LIGHT EMITTING DIODES AND CHECK PINS BY PCB 5 27 A DADF Controller PCB 5 27 B Indicator PCB 5 29 C DIP Switch Functions 5 30 V SELF DIAGNOSIS 5 32 A DADF Self Diagnosis 5 32 ...

Страница 108: ...ure 5 101 2 After adjustment check to make sure that both left and right rubber feet at the front of the DADF are in contact with the copyboard glass Otherwise adjust the left and right supports once again 2 Adjusting the Original Stop Position Adjust the original stop position after adjusting the DADF height then perform correcting the skew adjusting the distance to the horizontal size plate and ...

Страница 109: ...ke sure that the difference between l1 and l2 shown in the figure is within 1 mm 2 1 1 1 2 150mm Horizontal size plate Copy paper Standard 0 1 mm may be anywhere on the copy paper l1 l2 0 1 mm Figure 5 105 6 If the difference is not as indicated loosen the nut at the rear of the right hinge unit and turn the adjusting screw to make adjustments Adjusting screw Figure 5 106 Right support Adjusting s...

Страница 110: ...yboard tray 3 Press the push switch SW3 on the DADF controller PCB once The copy paper will be picked up and stopper on the copyboard glass SW1 TP1 J10 J15 J1 CB1 J2 J14 J12 J11 J7 J6 J13 J5 J9 J8 J3 B12 B1 2 1 1 3 1 2 1 3 1 2 13 1 14 2 A1 A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 109 4 Open the DADF slowly and check to make sure that the distance l3 shown in the figure is as indicate...

Страница 111: ... 114 4 Open the DADF slowly and measure the stop position l4 then close the DADF slowly Standard 11 6 1 mm Copyboard glass 4 4 Copy paper Figure 5 115 Direction of shift 1 2 l3 Decreases Increases Table 5 102 6 After adjustment check to make sure that the positioning screw and the fixing screws are fully tightened c Adjusting the Original Leading Edge Stop Position Be sure to perform correcting th...

Страница 112: ...nd Shift in Position Table 5 103 Note Holding down the push switch will not make more than a single shift DADF Leading edge Rear edge Copy paper Copyboard glass Figure 5 117 EX Suppose that the copy paper stop position l4 is 10 mm from the end of the copyboard glass when the push switch SW3 on the DADF controller PCB has been pressed once to stop the copy paper on the copyboard glass and the DADF ...

Страница 113: ...pyboard glass SW1 TP1 J10 J15 J1 CB1 J2 J14 J12 J11 J7 J6 J13 J5 J9 J8 J3 B12 B1 2 1 1 3 1 2 1 3 1 2 13 1 14 2 A1 A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 119 4 Open the DADF slowly and measure the copy paper stop position l4 then close the DADF Standard 11 6 1 mm Copyboard glass Copy paper 4 4 Figure 5 120 5 To adjust the original leading edge stop position use the push switches SW1...

Страница 114: ...he DADF slowly without removing the copy paper To shift the copy paper stop position toward the rear by 1 6 mm 1 6 mm 0 34 adjustment pitch 4 70 the push switch SW1 should be pressed five times Press the push switch SW1 five times and press the push switch SW3 on the DADF controller PCB once so that the copy paper will be discharged and the new setting will be stored in memory Direction of shift R...

Страница 115: ...lect copy paper to suit the DADF configuration For the A B model select A4 For Inch model select LTR 3 Press the push switch SW3 on the DADF controller PCB once The copy paper will be picked up and stopped on the copyboard glass 4 Open the DADF slowly and measure the distance l5 between the two sheets of copy paper then close the DADF slowly Figure 5 124 5 To adjust the sheet to sheet distance use...

Страница 116: ...y paper To decrease the sheet to sheet distance by 4 mm 4 mm 0 34 adjustment pitch 12 12 the push switch SW2 should be pressed 12 times Press the push switch SW2 12 times and press the push switch SW3 on the DADF controller once to discharge the copy paper and store the new setting in memory 6 Perform removing the original skew adjusting the distance to the horizontal size plate adjusting the orig...

Страница 117: ...opy paper will be picked up and stopped on the copyboard glass 4 Open the DADF slowly and measure the distance l5 between the two sheets of copy paper Then close the DADF Figure 5 127 5 Use the push switches SW1 and SW2 on the DADF controller PCB to adjust the sheet to sheet distance 5 5 Copyboard glass Copy paper 2 Copy paper 1 Standard 0 3 mm Figure 5 128 A single press on each push switch will ...

Страница 118: ...ch SW3 on the DADF controller PCB is pressed once the copy paper will be discharged and the new setting will be stored 6 After correcting the original skew adjusting the horizontal size plate adjusting the original leading edge stop position and adjusting the reduced composition mode sheet to sheet distance turn off the copier and shift all bits of the DIP switch DSW1 to OFF Turn on the copier and...

Страница 119: ... belt or the feeding roller the pressure of the separation belt will have to be adjusted If the separation belt or the feeding roller must be replaced be sure to make the following adjustments Outline The separation belt may be in bottom pick up mode or top pick up mode The pressure is measured in terms of feeding power which varies when the adjusting screw is turned To adjust the feeding power fo...

Страница 120: ...paper A4 or LTR on the original tray and press the push switch SW3 on the DADF controller PCB for continuous pick up delivery operation ON 1 2 3 4 5 6 7 8 LED1 LED2 SW1 TP1 J10 J15 J1 CB1 J2 J14 J12 J11 J7 J6 J13 J5 J9 J8 J3 6 1 B12 B1 2 1 1 3 1 2 1 3 1 2 13 1 14 2 A1 A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 134 4 After 2 min press the push switch SW3 once again to end the operation ...

Страница 121: ... Decreases Increases Direction of rotation Clockwise Counterclockwise Points to Note When Taking Measurements 1 Be sure that the three separation belts are in contact with the test strip 2 Be sure that the test strip is pulled straight along the separation belt Figure 5 131 3 Be sure that measurements are taken when the rear end of the test strip and the rear end of the original tray are flush Fig...

Страница 122: ...DIP switch DSW1 on the DADF controller PCB to ON to select separation belt feeding roller cleaning mode top pick up ON 1 2 3 4 5 6 7 8 LED1 LED2 SW1 TP1 J10 J15 J1 CB1 J2 J14 J12 J11 J7 J6 J13 J5 J9 J8 J3 6 1 B12 B1 2 1 1 3 1 2 1 3 1 2 13 1 14 2 A1 A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 140 3 Press the push switch SW3 on the DADF controller PCB Put the test strip into the middle se...

Страница 123: ...42 Table 5 111 Feeding power g 270 20 300 20 Test strip 64 g m2 80 g m2 Feeding power g Decreases Increases Direction of rotation Clockwise Counterclockwise Table5 112 Adjusting Screw and Feeding Power 6 Be sure that LED1 and LED2 on the DADF controller PCB are on and the voltage of TP2 1 and TP2 2 is 1 1 0 1 V If the voltage of either TP2 1 or TP2 2 is not as indicated suspect displacement of the...

Страница 124: ...2 1 3 1 2 13 1 14 2 A1 A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 145 Major parts DADF controller PCB Original tray power sensor S1 Registration sensor S3 Original width detecting volume VR Description 1 Adjust the level of the original tray paper sensor S1 registration sensor S3 2 Adjust the original width detecting volume VR 3 Adjust the original stop position See A Mechanical 4 Adju...

Страница 125: ... press the push switch SW3 on the DADF controller PCB once again The two LEDs will turn off and the adjustment will end 4 Shift the bit on the DIP switch DSW1 on the DADF controller PCB back to position 3 Adjusting the Original Width Detecting Volume VR1 1 Obtain one sheet of A4 or LTR copy paper 2 Remove the cover of the DADF and set the bits of the DIP switch DSW1 on the DADF controller PCB as f...

Страница 126: ...A12 1 1 1 1 9 10 1 4 2 2 8 1 7 1 DSW1 SW2 SW3 Figure 5 149 5 After LED2 has turned on place the copy paper on the document tray in a different orientation A4R LTRR and adjust the side guides to the width of the copy paper Figure 5 150 6 Press the push switch SW3 on the DADF controller PCB When adjustment ends successfully LED1 and LED2 on the DADF controller PCB will turn on When adjustment ends i...

Страница 127: ... Check the wiring between the copier s DC controller PCB and the DADF controller PCB Check the wiring for power from the copier End Replace the copier s DC controller PCB Checks Turn off and then on the power switch Is the problem corrected Set the meter range to 200 VDC and connect the meter probes as indicated Is the voltage about 24 V Replace the DADF controller PCB Is the problem corrected Yes...

Страница 128: ...he Copy Start key is pressed Check the wiring from the belt motor M3 to the DADF controller PCB if normal replace the belt motor M3 Replace the DADF controller PCB 2 E401 Table 5 202 3 E402 Table 5 203 Pick up roller sensor S5 Parts Step Checks Yes No Action Set the meter range to 20 VDC and connect the probe to J5 1 and the probe to J5 2 on the DADF controller PCB Then turn the flag light blockin...

Страница 129: ...m the delivery motor M5 to the DADF controller PCB if normal replace the delivery motor M5 Replace the DADF controller PCB 4 E403 Table 5 204 5 E404 Table 5 205 Parts Step Checks Yes No Action 1 No 2 Yes No Feeding motor clock sensor S9 Set the meter range to 20 VDC and connect the probe to J9 A11 and the probe to J9 A10 on the DADF controller PCB Does the reading repeat 5 and 0 V when the clock d...

Страница 130: ... 7 J5 9 J9 B10 J9 B9 Go to step 2 Replace the DADF controller PCB Is the light receiving unit of each sensor soiled with paper lint or the like S1 S3 Clean the light receiving unit of the sensor and go to step 3 Original tray paper sensor S1 LED3 Connect the meter probes to the following connectors on the DADF controller PCB Is the reading about 0 6 to 1 1 V Check the wiring from LED3 to the DADF ...

Страница 131: ...NC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON III ARRAIGNMENT OF THE ELECTRICAL PARTS A Motors Solenoids and Sensors LED101 LED102 S10 S14 S1 S6 S5 S13 S7 S8 S3 MS2 M5 M1 M2 M3 M4 BK CL VR SL2 SL1 SL3 SL4 MS1 S11 S12 S9 S4 Figure 5 301 ...

Страница 132: ... Feeder motor Belt motor Re circulating motor Delivery motor Clutch Belt motor brake Stopper plate solenoid Paper retaining plate solenoid Paper delivery plate solenoid Stamp solenoid Original width detecting volume DADF open close switch Upper cover switch Original tray paper sensor Registration sensor Upper cover sensor Pick up roller sensor Delivery sensor 1 Pick up sensor Reversal sensor Feedi...

Страница 133: ...T 1998 CANON INC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON B PCB 1 2 Figure 5 302 Symbol Name Notation Description DADF controller PCB Indicator PCB Controls the DADF Indicates the presence of an original 1 2 Table 5 302 ...

Страница 134: ...e variable resistors and check pins not discussed herein They are for the factory and require special tools and must be adjusted to high accuracy A DADF Controller PCB Caution 1 Some LEDs emit dim light even when off because of leakage current This is a normal condition and must be kept in mind 2 VRs that may be used in the field VRs that must not be used in the field SW1 TP1 J10 J15 J1 CB1 J2 J14...

Страница 135: ...e that the output of each sensor is correct The light emitting unit and the light receiving unit of these sensors are not of a single entity Making Checks 1 Turn off the copier s power switch 2 Shift bit 4 of the DIP switch DSW on the DADF controller PCB to on ON 1 2 3 4 5 6 7 8 LED1 LED2 SW1 TP1 J10 J15 J1 CB1 J2 J14 J12 J11 J7 J6 J13 J5 J9 J8 J3 6 1 B12 B1 2 1 1 3 1 2 1 3 1 2 13 1 14 2 A1 A12 1 ...

Страница 136: ... IN JAPAN IMPRIME AU JAPON 5 29 CHAPTER 5 TROUBLESHOOTING B Indicator PCB LED 101LED 102 2 J102 1 J101 6 1 Figure 5 403 LED101 LED102 Indicates the presence of an original Indicates the presence of an original LED Description Table 5 403 LEDs on the Indicator PCB ...

Страница 137: ...the push switch SW3 on the DADF controller PCB will cause the machine to pick up two originals and stop them on the copyboard side by side Thereafter press the push switch SW1 SW2 as necessary to adjust the sheet to sheet distance At the end press the push switch SW3 to store the new setting Each press on the push switch SW3 on the DADF controller PCB will cause the machine to repeat pick up rever...

Страница 138: ...es is used Separation belt feeding roller cleaning A press on the push switch SW3 on the DADF controller PCB will cause the pick up motor to rotate to clean the separation belt and the feeding roller To stop press the push switch SW3 once again Original size horizontal direction detection Use it to store the position of the side guides of the original tray for A4 or LTR size originals bottom pick ...

Страница 139: ...The pick up motor M1 does not rotate The pick up roller sensor S5 is faulty A flag is mounted on the spindle of the pick up motor M1 and the rotation of the pick up motor is mounted in reference to the flag blocking the pick up roller sensor S5 This error is identified when the sensor does not turn on and off twice or more within 1 sec The belt motor M3 doe not rotate The belt motor sensor S10 is ...

Страница 140: ...COPYRIGHT 1998 CANON INC CANON DADF A1 REV 0 DEC 1998 PRINTED IN JAPAN IMPRIME AU JAPON 5 33 CHAPTER 5 TROUBLESHOOTING ...

Страница 141: ... PRINTED IN JAPAN IMPRIME AU JAPON APPENDIX A GENERAL TIMING CHART A 1 B NAMES AND ABBREVIATIONS OF SIGNALS A 4 C DADF A1 GENERAL CIRCUIT DIAGRAM A 5 D DADF CONTROLLER CIRCUIT DIAGRAM A 6 E DISPLAY BOARD A 13 F SPECIAL TOOLS A 14 G SOLVENTS AND OILS A 15 ...

Страница 142: ...etaining solenoid Paper detecting solenoid Brake RDF operation Copier operation Pick up 2nd original picked up 1st original copied scanner moved forward 1st original delivered 2nd original re picked up Scanner moved in reverse 1st original delivered 2nd original copied scanner moved forward 2nd original delivered Scanner moved in reverse Original set Copy Start key ON High speed Low speeed High sp...

Страница 143: ...tion sensor Pick up motor Feeder motor Belt motor Clutch Stopper plate solenoid Paper retaining solenoid Paper deflecting plate solenoid Brake RDF operation Pick up Reversal Reversal 1st original delivered 2nd original picked up Reversal Reversal Delivery Motor low speed rotation delivery direction rotation pick up direction rotation CW CCW CCW CW CCW CW CCW CW CCW CW CCW CW CW CCW Original set Co...

Страница 144: ...nsor 2 Re circulation sensor Pick up motor Feeder motor Belt motor Clutch Stopper plate solenoid Paper retaining solenoid Brake Delivery motor RDF operation 1st original picked up fed 2nd original picked up Scanner moved forward 1st 2nd original fed Scanner moved in reverse 1st 2nd original delivery fed Scanner move in reverse Scanner moved forward Copier operation Original set Copy Start key ON M...

Страница 145: ...nal FLPSL1 DEFLECTOR SOLENOID DRIVE Command WIDTH DOCUMENT SIZE DETECTION Signal ORGLED DOCUMENT SENC DRIVE Command DSIN EDITOR INPUT Signal DSOUT EDITOR OUTPUT Signal FMCLK FEED MOTOR CLOCK PULSE Signal FMPWM FEED MOTOR DRIVE Command RSS LAST DOCUMENT DETECTION Signal SPRS PAPER DETECTION Signal 1 EJTS1 PAPER DETECTION Signal 2 ENTS PAPER DETECTION Signal 3 EJTS2 PAPER DETECTION Signal 4 TURNS PA...

Страница 146: ...A1 A1 B5 B4 B3 B11 B1 B9 B6 B8 B7 B2 B1 B1 BR BL BR GY BL BR W BL BR PK BL BR SB BL Y BL Y BL BR W BL Y Y J9 J305 J304 J303 J209 J208 J207 3 1 2 3 1 2 1 2 3 1 2 3 1 2 3 1 2 3 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 1 3 2 3 1 2 1 3 2 3 1 2 1 3 2 3 1 2 1 2 2 1 4 3 2 1 1 2 3 4 2 1 2 1 S4 LED3 J205 J302 J212 J211 S3 S10 S9 S8 S7 S6 J210 SL3 1 2 2 1 J214 J204 3 1 2 3 1 2 1 2 3 1 2 3 4 5 6 3 1 2 4 5 6 3 1 2...

Страница 147: ...73 AN3 P72 AN2 P71 AN1 P70 AN0 Vref AVcc C1 11 12 13 5V 5V C17 R2 JP1 R1 5V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 64 63 62 61 60 59 58 57 56 55 54 53 52 51 0 1 2 3 4 5 6 7 2 3 4 5 6 7 3 2 1 6 5 4 7 1 0 5V C3 Q3 A7 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PO0 DQ2 DQ3 DQ4 DQ5...

Страница 148: ...3 4 1 2 1 2 3 4 5 6 7 8 9 J1 J1 J2 J2 J2 J2 J3 J3 J8 J8 J8 J8 J8 J8 J8 J8 J8 1 J15 STPSL D20 C30 24V R48 R49 R47 Q22 Q24 Q7 R51 BK CL R46 R43 C29 CP1 D4 D5 D6 5V R44 Q21 5V 24V Q23 Q7 CVRSW R44 24V R42 L1 5V R52 SOLTMOR R40 R41 Q14 Q20 D2 R35 R38 R37 R36 C28 Q15 OPSW 5V R27 CVRPSV Q16 Q17 5V C22 CB1 C24 ZD1 C26 ZD2 C23 24V C23 5V R28 R29 RSS 5V R30 R31 5V 5V C27 R32 ORGLED RSDRV WIDTH RSSENS Q18 D...

Страница 149: ...Q34 R64 1 2 13 12 9 10 5 4 Q8 Q8 Q8 Q8 2 1 13 12 9 10 5 4 3 11 8 6 3 11 8 6 Q6 10 11 BMPWM BDIR Q27 5V 24V D9 D10 R66 5V Q56 R67 R70 24V R134 Q38 R68 R71 Q43 Q40 Q42 Q41 Q44 Q6 Q6 2 1 4 3 Q9 Q9 Q9 Q9 BMON SMPWM SDIR SMON Q6 6 5 FMPWM R140 Q49 24V D15 Q46 D16 R76 R73 1 2 J7 J7 1 2 J12 J12 1 2 3 J11 J11 J11 BELT_MTR SPR_MTR FEED_MTR D DADF Controller Circuit Diagram 3 6 ...

Страница 150: ...APAN IMPRIME AU JAPON A 9 Q47 D22 R127 24V Q48 R141 D23 24V D11 Q36 R129 5V R113 5V R114 R115 CP10 5V R130 5V R131 R132 CP9 C40 J14 J14 8 7 J14 J14 9 10 EJCT MRT STAMP SL EMPWM SMPSL J14 J14 J14 4 6 5 EJTS2 ECLK J14 J14 J14 3 2 1 D DADF Controller Circuit Diagram 4 6 ...

Страница 151: ... 5V R19 R20 C48 R21 D27 R10 R10 24U 5V C36 R10 R10 5V R86 R88 R87 R89 R91 R92 R94 R95 R97 R98 R10 R90 R93 R96 R99 C33 C34 CP3 CP4 SPRS EJTS1 TURNS ENTLED SLSWCLK FLPSL1 DCTS RCLK EMPLED R82 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 J9 A1 A3 A2 A4 A6 A5 A7 A9 A8 A12 A11 A10 B5 B4 B3 B10 B9 B12 B11 B2 B1 Q25 24V D7 C53 J5 J5 J5 J5 J5 J5 J5 J5 J5 1 2 3 4 5 6 7 8 9 C37 Q52 5V R10 R10...

Страница 152: ...D Q10 C10 5V 14 7 VCC GND Q6 C6 5V 14 7 VCC GND Q9 C9 5V 14 7 VCC GND Q12 C14 5V 16 8 13 12 4 11 14 24U Q57 5V 5V 5V 5V 5V 5V D18 R117 R118 C38 R120 R121 Q54 D19 R122 R123 C39 R125 R126 Q55 R124 12 Q10 13 6 Q10 5 4 Q10 3 2 Q10 1 EDTCT RXD2 TXD2 RXD1 TXD1 J10 J10 J10 J10 J10 J10 J10 J10 J10 J10 J10 J10 J10 L2 7 8 5 6 1 2 3 4 3 5 4 1 2 10 Q10 11 HC14 D DADF Controller Circuit Diagram 6 6 ...

Страница 153: ...COPYRIGHT 1998 CANON INC CANON DADF A1 REV 0 NOV 1998 PRINTED IN JAPAN IMPRIME AU JAPON A 13 APPENDIX E DISPLAY BOARD R101 R102 R103 LED 101 LED 102 PI101 J101 J102 3 2 1 A K E C 4 5 6 1 2 ...

Страница 154: ...ls set The following applies A Each service person is expected to carry one B Each group of five service persons is expected to carry one C Each workshop is expected to keep one Uses For removing clip rings 4 to 9 mm For adjusting the tension on the timing belt separation belt 0 to 600 g No 1 2 Tool name Stop ring Pliers edge replacement Tension gauge Tool No CK 0246 CK 0058 Shape Rank B B ...

Страница 155: ...bring near fire Procure locally Tool No CK 0551 20 g Tool No TKN 0454 No 1 2 3 Name Alcohol Lubricant Cleaning tissue Uses Cleaning e g glass plastic rubber external covers Lubricating Cleaning e g feeding belt copyboard cover copyboard glass Composition Fluoride family carbon hydrogen alcohol surface activating agent water Silicone oil ...

Страница 156: ...ctsTechnical Support Dept 1 Office Imaging ProductsTechnical Support Div Office Imaging Products Quality Assurance Center CANON INC Printed in Japan REVISION0 DEC 1998 30809 5 7 Hakusan 7 chome Toride City Ibaraki Pref 302 8501 Japan ...

Страница 157: ...0996S9 9 1 PRINTED IN JAPAN IMPRIME AU JAPON This publication is printed on 70 reprocessed paper ...

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