Canon iR5570, iR6570 paper deck-v1 Service Manual
Service Manual
Paper Deck
Paper Deck-V1
Feb 21 2005
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.
Corrections
This manual may contain technical inaccuracies or typographical errors due to improvements or changes in products.
When changes occur in applicable products or in the contents of this manual, Canon will release technical information
as the need arises. In the event of major changes in the contents of this manual over a long or short period, Canon will
issue a new edition of this manual.
The following paragraph does not apply to any countries where such provisions are inconsistent with local law.
Trademarks
The product names and company names used in this manual are the registered trademarks of the individual companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied,
reproduced or translated into another language, in whole or in part, without the written consent of Canon Inc.
COPYRIGHT © 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
Symbols Used
This documentation uses the following symbols to indicate special information:
Symbol Description
Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning.
Indicates an item requiring care to avoid electric shocks.
Indicates an item requiring care to avoid combustion (fire).
Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Introduction
Memo
REF.
Indicates an item requiring disconnection of the power plug from the electric outlet.
Indicates an item intended to provide notes assisting the understanding of the topic in question.
Indicates an item of reference assisting the understanding of the topic in question.
Provides a description of a service mode.
Provides a description of the nature of an error indication.
Introduction
The following rules apply throughout this Service Manual:
1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical
and mechanical systems with reference to the timing of operation.
In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol ,
the arrow indicates the direction of the electric signal.
The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the
delivery unit door, which results in supplying the machine with power.
2. In the digital circuits, '1'is used to indicate that the voltage level of a given signal is "High", while '0' is used to
indicate "Low".(The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in
"DRMD*" indicates that the DRMD signal goes on when '0'.
In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the
operations of the microprocessors used in the machines are not discussed: they are explained in terms of from
sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads.
The descriptions in this Service Manual are subject to change without notice for product improvement or other
purposes, and major changes will be communicated in the form of Service Information bulletins.
All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant
Service Information bulletins and be able to identify and isolate faults in the machine."
Contents
Contents
Chapter 1 Specifications
1.1 Product Specifications....................................................................................................................................... 1- 1
1.1.1Specifications .............................................................................................................................................. 1- 1
1.2 Names of Parts................................................................................................................................................... 1- 2
1.2.1Names of Parts............................................................................................................................................. 1- 2
Chapter 2 Functions
2.1 Basic Construction ............................................................................................................................................ 2- 1
2.1.1Inputs to the Side Paper Deck (1/2)............................................................................................................. 2- 1
2.1.2Inputs to the Side Paper Deck (2/2)............................................................................................................. 2- 2
2.1.3Outputs from the Side Paper Deck (1/1) ..................................................................................................... 2- 3
2.2 Basic Operation ................................................................................................................................................. 2- 4
2.2.1Outline ......................................................................................................................................................... 2- 4
2.2.2Pickup Operation ......................................................................................................................................... 2- 4
2.2.3Controlling the Deck Main Motor (M101).................................................................................................. 2- 6
2.2.4Controlling the Deck Lifter Motor (M102) ................................................................................................. 2- 6
2.3 Paper Detection ................................................................................................................................................. 2- 9
2.3.1Detecting the Presence/Absence of Paper ................................................................................................... 2- 9
2.3.2Changing the Deck Paper Size .................................................................................................................... 2- 9
2.3.3Detecting the Level of Paper ..................................................................................................................... 2- 10
2.4 Deck Lifter ...................................................................................................................................................... 2- 11
2.4.1Detecting the Presence/Absence of Paper ................................................................................................. 2- 11
2.4.2Indicating the Level of Paper on the Deck Front Cover............................................................................ 2- 12
2.5 Opening /Closing the Compartment................................................................................................................ 2- 14
2.5.1Opening/Closing the Compartment........................................................................................................... 2- 14
2.6 Detecting Jams ................................................................................................................................................ 2- 16
2.6.1Outline ....................................................................................................................................................... 2- 16
2.7 Power Supply .................................................................................................................................................. 2- 18
2.7.1Outline ....................................................................................................................................................... 2- 18
2.7.2Protection Function ................................................................................................................................... 2- 18
Chapter 3 Parts Replacement Procedure
3.1 Removing from the Host Machine .................................................................................................................... 3- 1
3.1.1 Compartment............................................................................................................................................... 3- 1
3.1.1.1 Removing the Compartment................................................................................................................ 3- 1
3.1.2 Paper Deck .................................................................................................................................................. 3- 2
3.1.2.1 Detaching from the Host Machine ...................................................................................................... 3- 2
3.1.2.2 Opening the Compartment .................................................................................................................. 3- 2
3.1.2.3 Removing the Right Cover.................................................................................................................. 3- 2
3.1.2.4 Detaching the Deck from the Host Machine ....................................................................................... 3- 2
3.2 External Covers ................................................................................................................................................. 3- 4
Contents
3.2.1 Front Cover .................................................................................................................................................3- 4
3.2.1.1 Opening the Compartment...................................................................................................................3- 4
3.2.1.2 Removing the Front Cover ..................................................................................................................3- 4
3.2.1.3 Points to Note When Mounting the Front Cover.................................................................................3- 4
3.2.2 Rear Cover...................................................................................................................................................3- 5
3.2.2.1 Removing the Rear Cover....................................................................................................................3- 5
3.2.3 Right Cover .................................................................................................................................................3- 5
3.2.3.1 Opening the Compartment...................................................................................................................3- 5
3.2.3.2 Removing the Right Cover ..................................................................................................................3- 5
3.2.4 Upper Cover ................................................................................................................................................3- 6
3.2.4.1 Removing the Rear Cover....................................................................................................................3- 6
3.2.4.2 Opening the Compartment...................................................................................................................3- 6
3.2.4.3 Removing the Front Upper Cover .......................................................................................................3- 6
3.2.4.4 Removing the Upper Cover .................................................................................................................3- 6
3.3 Drive System .....................................................................................................................................................3- 7
3.3.1 Deck Pickup Clutch.....................................................................................................................................3- 7
3.3.1.1 Removing the Rear Cover....................................................................................................................3- 7
3.3.1.2 Opening the Compartment...................................................................................................................3- 7
3.3.1.3 Removing the Front Upper Cover .......................................................................................................3- 7
3.3.1.4 Removing the Upper Cover .................................................................................................................3- 7
3.3.1.5 Removing the Deck Pickup Unit .........................................................................................................3- 7
3.3.1.6 Removing the Pickup Clutch ...............................................................................................................3- 8
3.3.2 Deck Main Motor ........................................................................................................................................3- 8
3.3.2.1 Removing the Rear Cover....................................................................................................................3- 8
3.3.2.2 Removing the Deck Main Motor (M101)............................................................................................3- 8
3.3.3 Deck Lifter Motor .......................................................................................................................................3- 9
3.3.3.1 Opening the Compartment...................................................................................................................3- 9
3.3.3.2 Positioning the Deck Lifter..................................................................................................................3- 9
3.3.3.3 Removing the Compartment................................................................................................................3- 9
3.3.3.4 Removing the Deck Lifter Motor (M102) .........................................................................................3- 11
3.3.4 Lifter Cable (Front) ...................................................................................................................................3- 11
3.3.4.1 Opening the Compartment.................................................................................................................3- 11
3.3.4.2 Removing the Lifter Cable (deck front) ............................................................................................3- 11
3.3.4.3 Stringing the Lifter Cable ..................................................................................................................3- 13
3.3.5 Lifter Cable ...............................................................................................................................................3- 13
3.3.5.1 Opening the Compartment.................................................................................................................3- 13
3.3.5.2 Removing the Compartment..............................................................................................................3- 13
3.3.5.3 Removing the Lifter Cable (deck rear)..............................................................................................3- 14
3.3.5.4 Stringing the Lifter Cable ..................................................................................................................3- 15
3.4 Document Feeding System ..............................................................................................................................3- 17
3.4.1 Deck Pickup Unit ......................................................................................................................................3- 17
3.4.1.1 Removing the Rear Cover..................................................................................................................3- 17
3.4.1.2 Opening the Compartment.................................................................................................................3- 17
3.4.1.3 Removing the Front Upper Cover .....................................................................................................3- 17
3.4.1.4 Removing the Upper Cover ...............................................................................................................3- 17
3.4.1.5 Removing the Deck Pickup Unit .......................................................................................................3- 18
3.4.2 Deck Pickup Roller ...................................................................................................................................3- 18
3.4.2.1 Removing the Rear Cover..................................................................................................................3- 18
3.4.2.2 Opening the Compartment.................................................................................................................3- 18
Contents
3.4.2.3 Removing the Front Upper Cover ..................................................................................................... 3- 19
3.4.2.4 Removing the Upper Cover............................................................................................................... 3- 19
3.4.2.5 Removing the Deck Pickup Unit....................................................................................................... 3- 19
3.4.2.6 Removing the Deck Pickup Roller.................................................................................................... 3- 19
3.4.2.7 Points to Note When Mounting the Deck Pikcup Roller .................................................................. 3- 20
3.4.3 Deck Pickup/Feed Roller .......................................................................................................................... 3- 20
3.4.3.1 Removing the Rear Cover ................................................................................................................. 3- 20
3.4.3.2 Opening the Compartment ................................................................................................................ 3- 21
3.4.3.3 Removing the Front Upper Cover ..................................................................................................... 3- 21
3.4.3.4 Removing the Upper Cover............................................................................................................... 3- 21
3.4.3.5 Removing the Deck Pickup Unit....................................................................................................... 3- 21
3.4.3.6 Removing the Deck Pickup/Feed Roller ........................................................................................... 3- 22
3.4.3.7 Points to Note When Mounting the Deck Pickup/Feed Roller.......................................................... 3- 22
3.4.4 Deck Separation Roller ............................................................................................................................. 3- 22
3.4.4.1 Removing the Deck Separation Roller.............................................................................................. 3- 22
3.5 Electrical System............................................................................................................................................. 3- 24
3.5.1 Deck Driver PCB ...................................................................................................................................... 3- 24
3.5.1.1 Removing the Rear Cover ................................................................................................................. 3- 24
3.5.1.2 Removing the Deck Driver PCB ....................................................................................................... 3- 24
3.5.2 Open Switch PCB ..................................................................................................................................... 3- 24
3.5.2.1 Opening the Compartment ................................................................................................................ 3- 24
3.5.2.2 Removing the Front Upper Cover ..................................................................................................... 3- 24
3.5.2.3 Removing the Open Switch PCB ...................................................................................................... 3- 24
Chapter 4 Maintenance
4.1 Maintenance and Inspection.............................................................................................................................. 4- 1
4.1.1 Periodically Replaced Parts ........................................................................................................................ 4- 1
4.1.1.1 Periodically Replaced Parts................................................................................................................. 4- 1
4.1.2 Durables ...................................................................................................................................................... 4- 1
4.1.2.1 Durables............................................................................................................................................... 4- 1
4.1.3 Periodical Servicing .................................................................................................................................... 4- 2
4.1.3.1 Periodical Servicing............................................................................................................................. 4- 2
4.2 Adjustment ........................................................................................................................................................ 4- 4
4.2.1 Basic Adjustment ........................................................................................................................................ 4- 4
4.2.1.1 Adjusting the Registration................................................................................................................... 4- 4
4.2.1.2 Adjusting the Pressure of the Deck Separation Roller ........................................................................ 4- 4
4.2.1.3 Adjusting the Position of the Roll ....................................................................................................... 4- 4
4.2.1.4 Swithcing the Paper Size of the Deck ................................................................................................. 4- 5
4.2.2 Adjustment at Time of Parts Replacement ................................................................................................. 4- 5
4.2.2.1 Adjusting the Position of the Deck Pickup Roller Releasing Solenoid (SL101) ................................ 4- 5
4.2.2.2 Stringing the Lifter Cable.................................................................................................................... 4- 5
4.2.2.3 Points to Note When Mounting the Deck Pikcup Roller .................................................................... 4- 6
4.2.2.4 Points to Note When Mounting the Deck Pickup/Feed Roller............................................................ 4- 6
4.2.2.5 Points to Note When Mounting the Front Cover................................................................................. 4- 7
4.3 Outline of Electrical Components ..................................................................................................................... 4- 8
4.3.1Sensor, Motor, Clutch, Solenoid, PCB, Others ........................................................................................... 4- 8
Contents
Chapter 5 Error Code
5.1 Overview............................................................................................................................................................5- 1
5.1.1Error Code ...................................................................................................................................................5- 1
Chapter 1 Specifications
Contents
Contents
1.1 Product Specifications........................................................................................................................................ 1-1
1.1.1 Specifications .............................................................................................................................................. 1-1
1.2 Names of Parts.................................................................................................................................................... 1-2
1.2.1 Names of Parts............................................................................................................................................. 1-2
1.1 Product Specifications
Chapter 1
1.1.1 Specifications
Item Specifications
Pickup Clawless (retard)
Paper accommodation Side tray
Copy paper type Plain paper (64 to 90 g/m2), thick paper (91 to 200g/
Reproduction size A4, B5, LTR
Paper stack Height: 385 mm (approximate height of stack; about
Paper size switch By size guide plate (in steps), in service mode
Dimensions 323 (W) x 583 (D) x 574 (H) mm/ 12.7 (W) x 23.0 (D)
0009-2042
T-1-1
m2), colored paper, recycled paper, eco paper
3,500 sheets of 80 g/m2)
(OPTION)
x 22.6 (H) in
Weight 46 kg (approx.)/101.4 lb (approx.)
Power supply DC from host machine
Operating
environment
The specifications are subject to change for product improvement.
Same as host machine
1-1
Chapter 1
1.2 Names of Parts
1.2.1 Names of Parts
External Covers
[1] Deck release grip
[2] Upper front cover
[3] Compartment open/close switch
[4] Front cover
[5] Right cover
[6] Upper cover
[7] Rear cover
[1]
[2]
0009-2043
[7]
[6]
[3]
[4]
[5]
F-1-1
1-2
Chapter 2 Functions
Contents
Contents
2.1 Basic Construction ............................................................................................................................................. 2-1
2.1.1 Inputs to the Side Paper Deck (1/2)............................................................................................................. 2-1
2.1.2 Inputs to the Side Paper Deck (2/2)............................................................................................................. 2-2
2.1.3 Outputs from the Side Paper Deck (1/1) ..................................................................................................... 2-3
2.2 Basic Operation .................................................................................................................................................. 2-4
2.2.1 Outline ......................................................................................................................................................... 2-4
2.2.2 Pickup Operation......................................................................................................................................... 2-4
2.2.3 Controlling the Deck Main Motor (M101).................................................................................................. 2-6
2.2.4 Controlling the Deck Lifter Motor (M102)................................................................................................. 2-6
2.3 Paper Detection .................................................................................................................................................. 2-9
2.3.1 Detecting the Presence/Absence of Paper ................................................................................................... 2-9
2.3.2 Changing the Deck Paper Size .................................................................................................................... 2-9
2.3.3 Detecting the Level of Paper ..................................................................................................................... 2-10
2.4 Deck Lifter ....................................................................................................................................................... 2-11
2.4.1 Detecting the Presence/Absence of Paper ................................................................................................. 2-11
2.4.2 Indicating the Level of Paper on the Deck Front Cover............................................................................ 2-12
2.5 Opening /Closing the Compartment................................................................................................................. 2-14
2.5.1 Opening/Closing the Compartment ........................................................................................................... 2-14
2.6 Detecting Jams ................................................................................................................................................. 2-16
2.6.1 Outline ....................................................................................................................................................... 2-16
2.7 Power Supply ................................................................................................................................................... 2-18
2.7.1 Outline ....................................................................................................................................................... 2-18
2.7.2 Protection Function ................................................................................................................................... 2-18
2.1 Basic Construction
Chapter 2
2.1.1 Inputs to the Side Paper Deck (1/2)
Deck feed sensor
Deck paper sensor
Deck lifter upper
limit sensor
Deck lifter position
sensor
Deck set sensor
Deck pickup sensor
Deck paper supply
position sensor
Deck paper level
sensor
Deck open sensor
PS101
PS102
PS103
PS104
PS105
PS106
PS107
PS108
PS109
J10-1
J5-1
J6-1
J7-1
J24-1
J12-1
J18-1
J19-1
J25-1
J8-5
-2
-4
-3
-3
J4-4
-2
-3
-3
-2
J4-7
-6
-2
-5
-3
J4-10
-2
-9
-3
-8
-2
-3
J8-10
-2
-9
-3
-8
J17-3
-2
-2
-3
-1
J17-6
-5
-2
-4
-3
-2
-3
J05-5
J04-7
J04-10
J04-13
J09-5
J05-10
J08-3
J08-6
J09-8
Side deck driver PCB
+5V
-4
DECK_FEED_DTC
-3
+5V
-6
PAPER_DTC
-5
+5V
-9
UPPER_LIM
-8
+5V
-12
DECK_UP_DTC
-11
+5V
-4
DECK_MOUNT_DTC
-3
+5V
-9
DECK_PULL_DTC
-8
+5V
-2
PAPER_TOP_DTC
-1
+5V
-5
PAPER_VOLUME
-4
+5V
-7
DECK_OPEN_DTC
-6
When PS 101 detects paper, '1'
(When the light-blocking sensor is
at PS101.)
When paper is absent in the
deck, '0'.
(When the light-blocking sensor
is not at PS102.)
When the deck lifter is at the
upper limit, '1'.
(When the light-blocking sensor is
at PS103.)
When the lifter is at the pickup
position, '1'.
(When the light-blocking sensor is
at PS104.)
When the deck is set in the copier,
'1'.
(When the light-blocking sensor is at
PS105.)
When PS106 detects paper, '1'.
(When the light-blocking sensor is
at PS106.)
When the deck lifter is at the paper
supply position, '1'.
(When the light-blocking sensor is at
PS107.)
When PS108 detects the
absence of paper (level
decreasing to half), '1'.
(When the light-blocking sensor is
at PS108.)
When the compartment is set in the
deck, '1'.
(When the light-blocking sensor is at
PS109.)
0009-2044
F-2-1
2-1
Chapter 2
2.1.2 Inputs to the Side Paper Deck (2/2)
Deck open
switch
Deck open
indicator
Deck open
detecting switch
Deck lifter lower
limit detecting
Power supply
SW100
LED100
Open switch PCB
SW101
NO
SW102
J21-1
NO
-2
+24V
0VU
J18
J3-1
J20-1
-3
-2
-3
-4
J26-2
J26-3
J17-8
J2-1
-7
J04-4
-2
-3
-4
J10-3
J08-8
J02-3
J03
Side deck driver PCB
DECK_OPEN_SW
-3
+5VR
-2
-1
LED_ON
DECK_OPEN_DTC_SW
-1
DECK_LOW_LIM
-7
-2
When SW100 is pushed to
open the deck, '0'.
When the deck is open/closed, '0'.
(The LED100 turns on or flashes
while the deck lifter motor is
rotating.)
When the deck is open, '0'.
(When SW101 is not pushed.)
When the deck lifter is at the lower
limit, '1'.
(When SW102 is not pushed.)
0009-2045
Copier
F-2-2
2-2
Chapter 2
2.1.3 Outputs from the Side Paper Deck (1/1)
Side deck driver PCB
J01-1
B
-2
B-COM
-3
Deck main
motor
Deck lifter
motor
Deck pickup
clutch
M101
M102
CL102
J22-1
J13-2
J17-9
-2
-1
-10
J8-11
-12
-4
-5
-6
J08-9
-10
J05-11
-12
B*
A
A-COM
A*
24VU
FEED_CL_ON
0009-2046
When '0', CL102 turns on.
Deck pickup
roller releasing
solenoid
Deck open
solenoid
SL101
SL102
J9-2
J23-2
J8-1
-1
-1
-2
24VU
J05-1
-2
PICK_UP_SL
24VU
J09-1
-2
DECK_OPEN_SL
When '0', SL101 turns on.
When '0', SL102 turns on.
F-2-3
2-3
Chapter 2
2.2 Basic Operation
2.2.1 Outline
The side paper deck (hereafter, "deck") is capable of accommodating as many as 3500 sheets of paper at a time (A4/
LTR/B5; 80 g/m2), ready to pick up and feed paper in response to control signals from its host machine's DC
controller.
The lifter of the deck is driven by the deck lifter motor (M102), and the pickup operation is executed using the drive
from the deck main motor (M101).
2.2.2 Pickup Operation
The paper placed in the deck is held up by the lifter at a specific point of paper pickup.
When the Start key is pressed and the deck pickup clutch (CL102) goes on, the pickup roller starts to rotate by the
drive of the deck main motor (M101), thus picking up paper. At this time, the pickup/feed roller and the separation
roller make sure that no more that a single sheet of paper is moved ahead. Thereafter, when the deck pickup sensor
(PS106) detects the paper, the deck pickup roller release solenoid (SL101) goes on so that the pickup roller leaves
the surface of the stack of paper.
The paper is then moved to the host machine's registration roller, where it is arched to remove any skew.
The registration roller serves to control the paper so that its leading edge will match the image on the photosensitive
drum.
0009-2047
0009-2048
2-4
Side deck driver PCB
Deck feed paper detection
signal (DECK_FEED_DTC)
Deck pickup detection signal
(DECK_PULL_DTC)
PS101
PS106
DC controller PCB
Deck pickup clutch drive signal
(FEED_CL_ON)
CL102
(copier)
Deck main motor drive signal
Deck pickup roller releasing
solenoid drive signal (PICK_UP_SL)
M101
Copy Start key
Deck main motor
(M101)
Deck pickup clutch
(CL102)
Deck pickup roller releasing
solenoid (SL101)
Deck pickup sensor
(PS106)
Deck feed sensor
(PS101)
ON
INTR
F-2-4
F-2-5
SCAN
PRINT
LSTR
SL101
STBY
Chapter 2
2.2.3 Controlling the Deck Main Motor (M101)
0009-2049
1. Controlling the Deck Main Motor (M101)
The deck main motor is controlled by the host machine's DC controller. The following diagram shows the circuit
used to drive the deck main motor, and the circuit has the following functions:
[1] turns on/off the deck main motor
[2] changes the speed of rotation of the deck main motor
a. Turning On/Off the Motor
The deck main motor is turned on or off by controlling the output of the pulse signals (A, A*, B, B*) from the host
machine.
b. Changing the Speed of Rotation of the Motor
The deck is designed to automatically change the speed of pickup so as to support future host machines. The pickup
speed is changed in response to external clock signals (M-CLK) that are sent by the host machine's DC controller to
the side deck drive PCB in keeping with the speed of motor rotation.
Side deck driver PCB
+24V
A
*
DC controller
PCB
Motor rotation
control circuit
A
B
B
*
M101
Deck main motor
F-2-6
2.2.4 Controlling the Deck Lifter Motor (M102)
0009-2050
2. Controlling the Deck Lifter Motor (M102)
The deck lifter motor control circuit is found as part of the side deck driver PCB. The following is a block diagram
of the circuit:
The combination circuit shown in the diagram consists of various logic circuits, and the deck lifter motor is rotated
in normal or reverse direction using combinations of the deck lifter drive signal (DECK_LIFT_ON) and the deck
lifer DOWN/UP signal (DECK_DW/UP) from the host machine's DC controller and the output signals of various
sensors.
If, for some reason, the deck lifter position sensor (PS104) does not detect the lifter within a specific period of time
in the presence of the deck lifter DOWN/UP signal, the machine will indicate an alarm code ('05'; may be checked
2-6
Chapter 2
in service mode COPIER>DISPLAY>ALARM1>BODY).
[1] Conditions Used to Move Up the Lifter
- the deck is joined with its host machine, i.e., the deck set signal (DSCK_MOUNT) is '1'.
- the deck (compartment) is closed, i.e., the deck open detection signal (DECK_OPEN_DTC) is '1'.
- the deck (compartment) is closed, i.e., the deck open detecting switch is 'on'.
- the deck lifter upper limit signal (UPPER_LIM) is '0' and, in addition, the deck lifter position detecting signal
(DECK_UP_DTC) is '0'.
- the deck lifer motor drive signal (DECK_LIFT_ON) is '0'.
- the deck lifter DOWN/UP signal (DECK_DW/UP) is '0'.
In the presence of these conditions, the lifter starts to move up.
[2] Conditions Used to Move Down the Lifter
- the deck (compartment) is open, i.e., the deck open detection signal (DECK_OPEN_DTC) is '0'.
- the deck lower limit detection signal (DECK_LOW_LIM) is '0' and, in addition, the deck lifter position detection
signal (DECK_UP_DTC) is '0'.
- the deck lifter motor drive signal (DECK_LIFT_ON) is '0'.
- the deck lifter DOWN/UP signal (DECK_DW/UP) is '1'.
In the presence of these conditions, the lifter starts to move down.
2-7
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