Canon DADF-H1 Service Manual

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Enlarged version

DADF-H1

REVISION 0

FY8-13HA-000

MAR.2001

2001

CANON DADF-H1 REV . 0 MAR. 2001 PRINTED IN U.S.A.

Table of Contents

Troubleshooting

Summary of Contents for Canon DADF-H1

Page 2 Application This manual has been issued by Canon Inc. for qualified persons to learn technical theory, installation, maintenance, and repair of products. This manual covers all localities where the products are sold. For this reason, there may be information in this manual that does not apply to your locality.
Page 3 Provides a description of a service mode. Provides a description of the nature of an error indication. Refers to the Copier Basics Series for a better understanding of the contents. COPYRIGHT © 2001 CANON INC. 2001 2001 2001 2001 CANON DADF-H1 REV.0 MAR. 2001...
Page 4 INTRODUCTION 2 Outline of the Manual This Service Manual contains basic facts and figures needed to service the DADF-H1 in the field, and it consists of the following chapters: Chapter 1 General Description: features, specifications, methods of operation Chapter 2 Outline of Operation:...
Page 6: Table Of Contents
Feed motor (M1) control ... 2-35 ferent systems -> Single-sided 3 Jams ..........2-36 print) ........2-13 4 Power Supply ........2-39 2.3 Document Set Detection ..2-15 COPYRIGHT © 2001 CANON INC. 2001 2001 2001 2001 CANON DADF-H1 REV.0 MAR. 2001...
Page 7 ......... 3-30 3.2.3 Removing the delivery reversal 4.4.4 Removing the locking roller, upper ....... 3-17 solenoid ......3-31 3.2.4 Removing read roller 2 ..3-18 COPYRIGHT © 2001 CANON INC. 2001 2001 2001 2001 CANON DADF-H1 REV.0 MAR. 2001...
Page 8 5.3 Jams ......... 5-29 2.1.1 E420 lit ......5-19 5.4 Errors ........5-30 2.1.2 E421 lit ......5-19 5.5 Host I/O Displays ....5-31 2.1.3 E422 lit ......5-19 COPYRIGHT © 2001 CANON INC. 2001 2001 2001 2001 CANON DADF-H1 REV.0 MAR. 2001...
Page 9 Back Next ........A-2 8 Special Tools List ......A-13 2 Signal Name/Designation List ... A-3 9 Solvent/Grease List ......A-13 3 General Block Diagram ..... A-5 COPYRIGHT © 2001 CANON INC. 2001 2001 2001 2001 CANON DADF-H1 REV.0 MAR. 2001...
Page 11: Features
The ADF supports mixed loading of documents of two different sizes. * Mixed loading of documents of different sizes adhering to the AB and inch system is not permitted. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 12: Specifications
• Mixes of document sizes adhering to different systems available for loading AB system A3/B4 A4/B5 B4/A4R B5/A5 Book document Handled (documents up to 50 mm / 1.97 in in thickness only) T01-201-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 13 XDExxxxx Operating environment Temperature range Conforming to the host. Humidity range Conforming to the host. T01-201-02 Specifications and other information are subject to change without notice. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 14: Names Of Parts
CHAPTER 1 GENERAL DESCRIPTION 3 Names of Parts 3.1 Exterior View F01-301-01 Feeder cover Document pickup tray Rear cover Front cover Slide guide Document delivery station COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 15: Cross-Sectional View
Read roller 2 roller Separation pad [11] Read roller 2 Separation plate [12] Platen roller Pickup roller [13] Read roller 1 roller Document pickup tray [14] Read roller 1 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 16 1) Remove the entire document from the document tray. 2) Opening the feeder cover, remove any jammed document. 3) Set the document in the ADF again after aligning it, from the first sheet afterwards. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 22: Basic Configuration
ADF Controller PCB Motor (IC1) Sensor EEPROM (IC5) +24V Solenoid DC5V (IC2) Document power Set LED (IC4) Communication Power Supply PCB Host Machine F02-101-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 23 J309 Cover COVERS Set to 1 when the cover opens open/close sensor J310 Document Set to 1 when paper is present EMPS set sensor PI10 F02-102-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 24 2-30 M2B* +24V For more details, Feed M1A* see 2-35 motor M1B* +24V J201 Document Set LED -4 LED LED turns on when 0 F02-103-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 25: Basic Operations
This machine is a flow-scanning document feeder that uses two motors to drive document pickup and feeding. Name (Symbol) Function Pickup motor (M2) Separates and feeds documents. Feed motor (M1) Feeds documents. T02-201-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 27: Operations
The small and large document sizes are as follows: Small sizes: B6, A5R, A5, A4, B5, LTR, STMT Large sizes: A4R, B5R, A3,B4,LTRR, LGL, 279.4 X 431.8mm (11" X 17") T02-202-02 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 28: Forwarding Pickup/Delivery (Single-Sided Document -> Single-Sided Print)
CHAPTER 2 OUTLINE OF OPERATION 2.2.2 Forwarding pickup/delivery (Single-sided document -> Single-sided print) The flow of document handling is schematically shown below. Document Delivery Pickup Looping Scanning standby Scanning F02-202-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 29: Forwarding Pickup/Reversal Delivery (Double-Sided Document -> Double-Sided Print)
(Double-sided document -> Double-sided print) The flow of document handling is schematically shown below. Document Feed Pickup Reversal Looping Scanning standby Looping Scanning Scanning standby To next page F02-202-02a COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 31 -> Double-sided print) The flow of document handling is schematically shown below. Document Reversal Pickup Looping Looping Feed Feed Idle feed Idle feed To next page F02-202-03a 2-10 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 32 CHAPTER 2 OUTLINE OF OPERATION Re-pickup from Feed reversal station Reversal Looping Scanning standby Looping Scanning standby Face scanning To next page F02-202-03b 2-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 34: Idle Feed/Reversal Pickup
The flow of document handling is schematically shown below. Document Pickup Looping Idle feed Feed Feed Feed Re-pickup from reversal station Reversal To next page F02-202-04a 2-13 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 36: Document Set Detection
Final document size Detecting the length of a document in Read sensor (PI7) detection the feed path in the feed direction • Feed direction T02-203-01 2-15 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 37 (VR1) tion feed distance between read sensor (PI7) ON and OFF Document width detection is also used to identify A5R and A4. T02-203-02 2-16 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 38: Detecting The Presence Or Absence Of A Document In The Document Pickup Tray
(PI10) to generate a document detection signal (EMPS) for transmission to the ADF controller PCB, which turns on the Document Set LED on receiving the EMPS signal. F02-203-01 ADF controller PCB Detection lever Document PI10 2-17 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 39: Detecting Whether The Document Being Fed Is The Last Document Or Not
(PI5) to generate a last document detection signal (ENDS), notifying the host that the paper being picked up is the last document in the document tray. ADF controller PCB Detection lever Document F02-203-01b 2-18 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 40: Initial Document Size Detection (Feed Direction)
10 msec intervals. T02-203-03 summarizes the relationships among each document length sensor signal, the document width, and the results of document size detection. ADF controller PCB Document Detection lever Detection lever F02-203-02 2-19 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 41: Initial Document Size Detection (Width Direction)
1 on the A4/LT identification on detecting a document width that is 197mm or more but less than 214mm. ADF controller PCB Slide guide (rear) A4R/LTRR identification sensor Gear Document width detection variable resistor Slide guide (front) F02-203-03 2-20 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 43 White/A and making (A/B system use) Single-grooved side Double-grooved side Black/L and making (Inch system use) LTRR LTRR LTRR T02-203-04 Slide guide positioning top (black) F02-203-04 2-22 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 44: Final Document Size Detection
The length of the feed distance is detected by counting the clock pulses generated by the feed motor (M2) between the two instants of read sensor (PI7) ON and read sensor (PI7)OFF. ADF controller PCB Document Detection lever F02-203-05 2-23 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 45 [Mixed loading of documents of different sizes adhering to the inch system] Standard size Document width w (mm) Document length (mm) STMT 1 < 248 LTRR 1 < 318 1 < 394 11" x 17" T02-203-06 2-24 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 46 (PI3) is w <288 197 mm or more but 11" x 17" 11" x 17" les t han214 mm of document width. 11" x 17" T02-203-07 2-25 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 47: Document Pickup/Separation
The pickup motor (M2) reverses, pressing the paper against the registration roller halted by the idling one-way clutch to form a loop, thereby preventing the document from skew- ing. Looping 1 Registration roller F02-204-02 2-26 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 48 The scanned image is stored in the host’s memory. Platen roller Document illuminating lamp Scanning glass F02-204-04 2-27 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 49: Pickup Station And Stopper
Pickup roller Stopper arm Gear Stopper arm Paper Feed roller Separation pad Separation plate F02-204-05 2-28 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 50: Pickup Timing Chart
Read sensor (PI7) Pickup clutch sensor (PI8) Looping Scanning standby Pickup motor (M2) Reversing Forwarding Feed motor (M1) Image start signal : Motor reversing F02-204-06 2-29 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 51: Pickup Motor (M2)Control
Driving pulse A KMOT_A* Driving pulse A (opposite phase) KMOT_B Driving pulse B KMOT_B* Driving pulse B (opposite phase) KMOT_V-REF Reference current value setting T02-204-01 2-30 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 53: Operating Sequences
(PI8) Looping Scanning standby Pickup motor (M2) Reversal standby Looping Reversing Forwarding Feed motor (M1) Locking solenoid (SL1) Image start signal : Motor reversing F02-205-04 2-32 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 54: Document Feed/Delivery
The document is delivered to the document delivery station by the delivery reversal roller rotating through the driving (forwarding) of the feed motor (M1). Delivery reversal roller F02-206-02 2-33 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 55: Operating Sequence
Pickup clutch sensor (PI8) Looping Scanning standby Pickup motor (M2) Reversing Forwarding Feed motor (M1) Locking solenoid (SL1) Image start signal : Motor reversing F02-206-03 2-34 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 56: Feed Motor (M1) Control
Driving pulse A RMOT_A* Driving pulse A (opposite phase) RMOT_B Driving pulse B RMOT_B* Driving pulse B (opposite phase) RMOT_V-REF Reference current value setting T02-206-01 2-35 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 57: Jams
Table T02-301-01 and later ‘1’ indicates a jam in the machine F02-301-01 LED indications on the ADF controller PCB LED2 LED4 LED3 LED1 DSW1 PSW1 F02-301-02 2-36 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 58 (PI8) after the paper reversal sensor has been fed for a predetermined period of time upon detection by the read sensor (PI7). T02-301-01 2-37 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 59 Pickup failure PI10 A pickup signal was received for 2 sec- 1 2 3 4 onds without a document in the docu- ment pickup tray. T02-301-02 2-38 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 60: Power Supply
24VR is converted to 5V by IC4 before it is made available for driving the sensors and the ADF controller PCB. Motor 24VP Solenoid Host Machine 24VR Sensor DC Regulator F02-401-01 2-39 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 63: Basic Arrangement
1.1.1 Removing the ADF 1) Turn off the power to the host. 2) Disconnect communication cable [1] for this ADF from the host. F03-101-02 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 64: Detaching The
3) Remove two stepped screws [1] and [2]. 4) Slide the ADF rearwards and then lift it off. F03-101-03 1.1.2 Detaching the front cover 1) Opening feeder cover [1], remove screw [2]. F03-101-04 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 65: Detaching The Rear Cover
2) Remove two screws [3] to detach front cover [4] as illustrated. F03-101-05 1.1.3 Detaching the rear cover 1) Opening the feeder cover, then the document pickup tray, remove screw [1]. F03-101-06 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 66: Detaching The Feeder Cover
[2] to detach feeder cover [3]. F03-101-08 1.1.5 Removing the feed roller guide 1) Open the ADF. 2) Remove two screws [1] to release feed roller guide [2]. F03-101-09 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 67: Drive Mechanism
4) Detach tension spring [3] by using tweezers or a similar tool and remove stepped screw [4] to release pickup mo- tor [5]with the adjustment plate. F03-201-02 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 68: Mounting The Pickup Motor
F03-201-03 3) After securing the adjustment plate with two mounting screws [3], attach con- nector [4] to it. F03-201-04 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 69: Feed Motor
3) Detach tension spring [3]. F03-201-06 4) Remove two screws [4] and stepped [7] [4] screw [5] to release feed motor [6] to- gether with adjustment plate [7]. F03-201-07 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 70: Mounting The Feed Motor
2) With feed motor [5] pressed against the left end, attach timing belt [6] to the pulley. F03-201-09 3) Secure the adjustment plate with two mounting screws [7]. F03-201-10 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 71: Disassembling The Drive Mechanism
[3], slide the harness guide slightly to left and then lift it. F03-201-11 4) Remove four screws [4] and screw [5] to release the left hinge assembly. F03-201-12 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 72 7) Detach three E-rings [11] to release two pulley [12], one-way clutch [13], and [15] timing belts [14], [15]. [12] [11] [12] [11] [14] [13] F03-201-15 3-10 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 73 [22] and press the arm in the counterclockwise direc- tion to attach the timing belt. When the timing belt has been attached, remember to clamp screw [21]. [18] F03-201-17 3-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 74: Feed System
3.1.2 Removing the pickup roller/separation roller 1) Remove the pickup roller. 2) Detach plastic E-ring [1] and stop lever [2] and pull out pickup roller support plate [3]. F03-301-03 3-12 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 75: Mounting The Pickup Roller Assembly
E-rings [5] and two bushing [6]. 3) Replace the feeder cover inner cover in original position and secures it with four screws. F03-301-06 3-13 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 76: Releasing The Registration Roller, Upper
2) Remove four screws [1] to detach inner cover [2] from the feeder cover. F03-301-07 3) With shaft [3] pulled out in the illus- trated direction, release registration roller, upper [4]. F03-301-08 3-14 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 77: Feed System
2) Remove two screws [1] to release sepa- ration plate [2] and separation pad [3]. F03-302-01 3) Slide separation pad [3] out of position as illustrated. F03-302-02 3-15 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 78: Removing The Feed Station
[2] and connector [3]. F03gv-302-03 4) Remove screw [4] to pull out bushing [5] and then release document pickup tray [6]. F03-302-04 3-16 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 79: Removing The Delivery Reversal 4.4.4 Roller, Upper
[1] and bushing [2]. F03-302-06 3) Detach plastic E-ring [3] to release bushing [4]. 4) Remove reversal delivery roller, upper [5] and separation guide [6]. F03-302-07 3-17 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 80: Removing Read Roller 2
[6], widen its claw. 5) Lifting read roller 2[8] along the clear- ance in the shaft hole as illustrated, slide it out of position. F03-302-10 3-18 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 81: Removing The Platen Roller
Mark the notched part of platen guide L before removal to have this mark aligned with the notch at reassembly to save the adjust- ment effort. F03-302-12 3-19 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 82: Removing Read Roller 1
3) Detach plastic E-ring [1] to release pul- ley [2], timing belt [3], and bushing [4]. F03-302-15 4) Detach plastic E-ring [5] to release pul- ley [6] and bearing [7]. F03-302-16 3-20 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 83: Removing The Registration Roller, Lower
[2]. F03-302-18 4) Remove E-ring [3], plastic E-ring [4], and bushing [5] , three screws [6] to re- lease metallic frame [7]. F03-302-19 3-21 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 84 CHAPTER 3 MECHANICAL SYSTEMS 5) Detach plastic E-ring [8] and bushing [9] to release registration roller, lower [10]. [10] F03-302-20 3-22 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 85: Adjusting Platen Guide L
[2] and platen guide L [3] by about 2 mm, tighten two screws [1] with platen guide L [3] pressed against the gauge. F03-302-22 3-23 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 86: Removing The Delivery Reversal Roller, Lower
F03-302-23 4) Pull out bushing [3] by pulling its claw and release reversal delivery roller, lower [4]. F03-302-24 3-24 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 88: Replacing The Separation Guide Sheet
3) Attach new separation guide sheet [2] as shown at right. Press the new separation guide sheet pressed against the stopper both vertically and horizontally to attach. F03-302-26 3-26 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 89: Electrical
2) Remove the reversal delivery roller, up- per, read roller 2, and read roller 1. 3) Remove two screws [1] to release sen- sor assembly [2]. F03-402-01 3-27 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 90: Removing Sensors
4.3.1 Removing the document width detection variable resistor 1) Detach the front cover. 2) Raise the document pickup tray. 3) Remove three screws [1] to detach cover [2]. F03-403-01 3-28 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 91: Installing The Document Width Detection Variable Resistor
1) Widen side guide [1] fully. 2) Turn gear [2] fully counterclockwise as viewed from the gear to locate it where arrow marks [3] meet. F03-403-03 3-29 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 92: Other Sensors And Solenoids
1) Detach the rear cover. 2) Remove screw [1]. 3) Remove document set sensor [2] to- gether with the bracket and then remove connector [3]. F03-404-03 3-30 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 93: Removing The Locking Solenoid
[3]. F03-404-04 When installing the locking so- lenoid, have plunger [5] as- sembled into link [6] before mounting locking solenoid [4] on the bracket. F03-404-05 3-31 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 95: Parts Requiring Periodic Replacement
Feed roller guide FF6-1273 80,000 sheets (Dust-collecting tape) T04-201-01 These values are estimates and are subject to change to reflect empirical in- formation as it becomes available. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 96: Periodic Service List
Feed frame (including sheet) Platen guide L Platen guide R Reversal flapper Document delivery station Feed roller guide (Dust-collecting tape) Registration roller sheet 120,000 sheets DADF height T04-301-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 97 A layout of the parts requiring periodic servicing is shown below. [17] [18] [3] [13][12] [14] [11] [15] [10] F04-301-01 [16] [22] [25] [23] [24] [21] [20] F04-301-02 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 98: Cleaning
4.2.2 Blank plate (crimp plate) 1) Wipe blank plate [2] with a cloth satu- rated with water, then wrung tight or with alcohol, then wipe dry. F04-402-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 100: Document Pickup Tray
1) Open the feeder cover. 2) Clean separation pad [1] and separation plate [2] with a lens cleaning wiper or similar material saturated with alcohol. F04-403-04 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 101 [2] with the knob, clean them with a lens cleaning wiper or similar material saturated with alcohol. 4) When the cleaning is completed, reat- tach the front cover. F04-403-06 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 102 1) Open the feeder cover and the separa- tion guide. F04-403-07 2) Clean the paper passage areas on the reversal flapper with a lens cleaning wiper or similar material saturated with alcohol. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 103 5.1 Replacing the Feed Roller Guide (Dust-collecting type) 1) Open the ADF. 2) Remove two screws [1] to detach feed roller guide [2]. F04-501-01 3) Mount the new feed roller guide. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 104 To be reprinted from the Installation In- structions F04-502-01 Be sure to push the stamp into firm position, because an el- evated stamp is prone to jams. 4-10 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 105 * If the front is not in contact, tighten the adjusting screw. * If the rear is not in contact, loosen the adjusting screw. F04-601-02 4-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 107: Specifications And Adjustments
1) Check to see if the pickup side docu- ment table stopper comes into contact with document scanning glass [2] both on its front and back when the DADF is closed. F05-101-01 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 108 If elevated on the front -> Tighten the adjustment screw. If elevated in the rear -> Loosen the adjustment screw. F05-101-02 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 109: Squareness Adjustment
Paper produced in Step 2 Make this squareness check on Feed a line of the leading part of direction scanning. Another sheet Paper produced in Step 2 F05-101-04 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 110: Scanning Position Adjustment
3) Starting from the service mode screen, touch the following screens in this or- der: COPIER > FUNCTION > INSTALL > STRD-POS COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 111 COPIER > ADJUST > AD-XY > STRT- The default adjustment value is 30. 4) Find out the optimal value by trying various possible values to verify the re- sultant images. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 112: Horizontal Registration Adjustment
A £ _ 1mm B £ _ 1mm Test chart Paper produced in Step 2 Feed direction Test chart F05-101-07 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 113 • The image is shifted backward. -> Reduce the value 5) Print the test chart again to make sure that the image falls within tolerances of the specifications. COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 114 A>1mm : Move variable resistor assembly [6] for- ward. B>1mm : Move variable resistor assembly [6] back- ward. F05-101-09 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 115 Step 2) comply with the following toler- ances: A £ _ 1mm B £ _ 1mm Paper produced in Step 2 Test chart Feed direction Paper produced in Step 2 F05-101-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 116 -> Increase the value (for faster docu- ment scanning) 4) Print the test chart again to make sure that the image falls within tolerances of the specifications. 5-10 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 117 (at 0.2 sec- indicates 6 (at 0.2 second intervals). ond intervals) * If the setting is positive (+), all LEDs will flash twice quickly in 3. F05-101-13 5-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 119: Trailing Registration Adjustment
Step 2) comply with the following toler- ances: A £ _ 1mm B £ _ 1mm Paper produced in Step 2 Test chart Feed direction Paper produced in Step 2 F05-101-16 5-13 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 120 • The image appears shifted to right -> Reduce the value. 5) Print the test chart once again to see if the resultant image conforms to the specifications. 5-14 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 121 (at 0.2 sec- (at 0.2 second intervals). ond intervals) * If the setting is positive (+), all LEDs will flash twice quickly in 3. F05-101-18 5-15 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 123: Making Adjustments Following Replacement Of Key Parts
Perform 1 for the AB system, 2 for the inch system, or either 1 or 2 for the AB/ DSW1 PSW1 inch system. 1. AB system 2. INCH system F05-102-01 5-17 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 125: Troubleshooting
2.1.4 Black streaks appearing in a printed image in the sub scanning direc- tion Foreign matter on the scanning glass 1) Clean according to the suggested cleaning items. (See P.4-4.) 5-19 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 126: Electrical Parts Layout
End-of-document sensor Registration roller paper sensor Read sensor Delivery reversal sensor Cover open/closed sensor PI10 Document set sensor Document Set LED Document presence/absence indicator T05-301-01 5-20 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 127: Motors, Clutches, Solenoids, Pcb, Etc
Solenoid Locking solenoid Stamp solenoid ADF controller PCB PCB1 ADF control Junction PCB PCB2 Document pickup tray sensor relaying Variable resistor Document width detection T05-302-01 5-21 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 128: Leds, Check Pins, And Switches By Pcb
These LEDs should not be recognized as signifying faults. 4.1.1 Component layout J10 J11 LED2 LED4 LED1 LED3 DSW1 PSW1 F05-401-01 5-22 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 129: Dip Switch Function List
Tray width detection variable resistor adjust- ment (inch system)(See P.5-17.) Scale adjustment (first side)(See P.5-11.) Scale adjustment (second side)(See P.5-11.) Trailing registration adjustment (See P.5-13.) Registration cleaning (See P.4-5.) 5-23 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 130 Press the push switch (PSW1) to let the ADF run continuously. Run the ADF without pa- per loaded, since a timing has not been de- tected. Forwarding (70=>140=>280=>0) Reversing (70=>140=>280=>0) T05-401-02 5-24 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 131 PSW1 is pressed. Locking solenoid (ON/OFF) Stamp solenoid (ON/ OFF) Locking solenoid (continuous) Stamp solenoid (con- tinuous) T05-401-03 5-25 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 134: Self-Testing
When errors occur, the corresponding error codes are displayed on the host screen. Jam codes; see table T02-301-01 and later ‘1’ indicates a jam in the machine F05-501-01 5-28 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 136: Errors
ADF stood by. • Communication between the ADF and the host has been interrupted for 0.5 second or longer while the ADF was running. 5-30 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 137: Host I/O Displays
A4R/LTR identification sensor A4R/LTR J5-3 H: A4R Bit 5 Push switch SKHHPK Bit 6 Feed motor Vref RMOT_V-REF Bit 7 Pickup motor Vref KMOT_V-REF T05-505-01 5-31 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 138 DIP SW1 AD-P01 Document width detection variable resistor (analog) (analog port) AD-P02 Feed motor current value (analog port) AD-P03 Pickup motor current value (analog port) T05-505-02 5-32 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 140: General Timing Charts
Registration roller paper sensor (PI6) Read sensor (PI7) Delivery reversal sensor (PI8) Pickup motor (M2) Reversing Forwarding Feed motor (M1) Locking solenoid (SL1) : Motor reversing COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 141: Scanning A Double-Sided A4 Document, Face First, Back Next
Registration roller paper sensor (PI6) Read sensor (PI7) Delivery reversal sensor (PI8) Pickup motor (M2) Reversing Feed motor (M1) Forwarding Locking solenoid (SL1) : Motor reversing COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 142: Signal Name/Designation List
Pickup Motor Drive signal M2B* Pickup Motor Drive signal READS Read Document Detection signal REGS Registration Roller Paper Detection signal STAMP_SL Stamp Solenoid Drive signal Document Width Detection signal COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 144: General Block Diagram
Feeder cover sensor roller paper sensor reversal identification length length document set sensor open/closed detection variable sensor sensor sensor sensor 1 sensor 2 sensor sensor resistor COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 145 [A503] E2PROM_D RxD1//IRQ4/P85 P61/FTIA/CIN1//KIN3/VSVNC0 [A503] READS E2PROM_D1 [A503] SCL1/SCK1//IRQ5/P86 P60/FTIA/CIN0//KIN3/HFBACK1/TMIN /RESET /IPC /RESET [A502] TXD1 [A502] RXD1 /IPC OSC1 VOUT MANUA +5R +5V CP11 JNT1 ETH1 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 146: Adf Controller Block Diagram
[A501]LONG1S LENG1S CP15 CP19 [A501]LONG2S SGND LENG2S TXD1 [A501] CP16 [A501]SENDS ENDS +24VR CP17 [A501]VR +24VR VOUT [A501]/RESET [A501]MD1 SGND CP38 SGND +24VR [A501]S_TXD CP39 [A501]S_RXD COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 147 REFB GNDB [A501] RMOT_B IN_B [A501] RMOT_B OUT_B CP23 SGND [A501] EJTS EJTS +24V CP10 PGND +24V [A501] E2PROM [A501] E2PROM [A501] E2PROM [A501] E2PROM TEST COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 148 [A501] KMOT_A +24R OUT_A +24V R CP33 OUTB SYNCB REFB [A501] GNDB [A501]KMOT_/B IN_B [A501] KMOT_B OUT_B CP29 SGND [A501] EMPS EMPS CP30 SGND [A501]COVERS COVERS COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 150: Document Set Display Block Diagram
LENG1S J102 LENG1S J101 R103 J102 A4R/LTR J102 SGNG J101 SGND J102 LENG2S J101 R104 J102 J102 SGND J102 ENDS J102 R105 J102 SGND J102 A-11 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 151: Jam Code List
ADF open jam 0008 User ADF open jam 0009 ADF cover open jam 000A User ADF cover open jam 000B Initial stack jam 000C Pickup failure A-12 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 152: Special Tools List
- Substitute: IPA (Isopropyl alcohol) plastic materials, Water rubber, exterior covers Lubricant Driving and sliding Silicone oil - PERMALB 82 parts - Tool No. CK-0551 (20g) A-13 COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-H1 REV.0 MAR. 2001...
Page 154 Office Imaging Products Technical Support Division Office Imaging Products Quality Assurance Center CANON INC. Printed in U.S.A. REVISION 0 (MAR. 2001) (25089) 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan COPYRIGHT © 2001 CANON INC. CANON DADF-H1 REV. 0 MAR. 2001 PRINTED IN U.S.A.
Page 155 This publication is printed on 100% reprocessed paper. PRINTED IN U.S.A.

Canon DADF-H1 Service Manual

Chapter 1 General Description

Chapter 2 Outline of Operation

Chapter 3 Mechanical Systems

Chapter 4 Maintenance and Inspection

Chapter 5 Troubleshooting

APPENDIX General Timing Charts

Quick Links

Troubleshooting

Related Manuals for Canon DADF-H1

Summary of Contents for Canon DADF-H1

Table of Contents