Canon GP405, Gp-335 Schematics

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Page 1

SERVICE HANDBOOK

REVISION 0

JAN. 1999

FY8-23AZ-000

Page 2

IMPORTANT

THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN, AND IS FOR REFERENCE USE ONLY. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.

ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

5-1, Hakusan 7-chome, Toride-shi Ibaraki, 302-8501 Japan

Page 3

CHAPTER 1 MAINTENANCE AND INSPECTION

A. Scheduled Servicing Table........................1-1

1. Copier ..................................................1-1

2. Paper Deck..........................................1-2

B. Periodically Replaced Parts.......................1-3

C. Consumables and Durables ...................... 1-3

1. Copier ..................................................1-3

2. Side Paper Deck..................................1-4

D. Image Basic Adjustment Procedure..........1-5

E. Points of Scheduled Servicing................... 1-6

CHAPTER 2 STANDARDS AND ADJUSTMENTS

A. Image Adjustment...................................... 2-1

B. Exposure System ......................................2-6

C. Image Formation System ..........................2-9

D. Pick-Up/Feeding System.........................2-11

E. Fixing System ..........................................2-16

F. Electrical System .....................................2-18

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF

ELECTRICAL PARTS

A. Clutches and Solenoids.............................3-2

B. Motors........................................................3-4

C. Fan.............................................................3-6

D. Sensors......................................................3-8

E. Switches and Counters............................3-10

F. PCBs........................................................3-12

G. Side Paper Deck...................................... 3-14

1. Sensors and Switches.......................3-14

2. Motors, Solenoids, and PCBs ...........3-16

H. Variable Resisters, Light-Emitting Diodes,

and Check Pins by PCB ..........................3-18

1. Image Processor PCBs

(main controller).................................3-19

2. DC Controller PCB (DC driver)..........3-21

3. Composite Power Supply CPB .........3-23

4. Deck Driver (side paper deck)...........3-24

I. Upgrading ................................................3-25

1. Removing the DIMM.......................... 3-26

2. Mounting the DIMM ...........................3-27

3. Downloading...................................... 3-28

Page 4

CHAPTER 4 SERVICE MODE

A. Outline .......................................................4-1

1. Starting Service Mode and Making

Selections ............................................ 4-1

2. Ending Service Mode .......................... 4-2

3. Backing Up the RAM ...........................4-2

4. Basic Operation ................................... 4-4

B. DISPLAY Control Display Mode................4-7

C. I/O Operation Check Mode ...................... 4-22

1. DC-CON ............................................4-23

2. IP .......................................................4-30

CHAPTER 5 SELF DIAGNOSIS

A. Copier ........................................................ 5-3

B. DADF .......................................................5-10

C. Cassette Feeding Unit-R1/S1 .................. 5-11

D. Multi Output Tray-D1 ...............................5-11

E. Finisher-C1 .............................................. 5-12

3. FEEDER ............................................ 4-31

4. SORTER (Finisher C1, Saddle

Finisher C2, Finisher E1)................... 4-34

D. ADJUST Adjustment Mode...................... 4-45

E. FUNCTION Operation Check Mode........4-53

F. OPTION Settings Mode ........................... 4-65

G. PG test Print ............................................4-73

H. COUNTER Mode ..................................... 4-78

I. FEEDER ..................................................4-81

J. SORTER (finisher, saddle stitcher) .........4-85

F. Saddle Finisher-C2 ..................................5-14

G. Finisher-E1 ..............................................5-18

H. Paper Deck-B1 ........................................5-20

I. SCSI Interface Board-D1.........................5-21

APPENDIX

A. General Timing Chart ............................... A-1

B. Signal name/abbreviation list.................... A-3

C. General Circuit Diagram ........................... A-7

D. General Circuit Diagram Paper Deck ..... A-13

E. Specifications .......................................... A-15

1. Copier ............................................... A-15

2. Paper Deck....................................... A-21

Page 5

CHAPTER 1 MAINTENANCE AND INSPECTION

A. Scheduled Servicing Table

Caution:

Do not use solvents/oils not indicated here.

1. Copier

: Clean : Replace : Lubricate : Adjust : Inspect

Unit

Scanner drive assembly

Optical assembly

Developing assembly

Feeding assembly

Fixing assembly

Part

Scanner rail

No. 1 through No. 3 mirrors

Dust-proofing glass Lens Reflecting plate Original size sensor Developing assembly

roll Transfer guide

Feeding belt Feeding assembly base Fixing assembly

inlet guide Upper separation claw

Lower separation claw

Installation

every

60,000

every

120,000

every

240,000

Remarks

Use lubricant.

Note

During a visit. Clean as necessary.

Note: For cleaning intervals, use the hardware counter reading as a reference.

1-1

Page 6

CHAPTER 1 MAINTENANCE AND INSPECTION

2. Paper Deck

: Clean : Replace : Lubricate : Adjust : Inspect

Unit

Pick-up assembly

Pick-up roller Pick-up/feeding

roller Separation roller Feeding roller, roll

Part

Installation

Maintenance intervals

every

250,000

every

500,000

every

750,000

every

1,000,000

Remarks

1-2

Page 7

CHAPTER 1 MAINTENANCE AND INSPECTION

B. Periodically Replaced Parts

The machine does not have parts that need to be replaced on a periodical basis.

C. Consumables and Durables

1. Copier

Some parts of the machine may require replacement once or more over the period of warranty

because of wear or damage. Replace them as necessary.

As of Dec. 1998

No.

Pick-up roller

Feeding roller

Separation roller

Pick-up roller (multifeeder)

Separation pad (multifeeder)

Transfer roller

Separation static eliminator

Scanning lamp

Pre-exposure lamp

Developing cylinder

Upper fixing roller

Lower fixing roller

Upper fixing separation claw

Lower fixing separation claw

Fixing cleaning belt

Heat insulating bush

Fixing heater (main)

Fixing heater (sub)

Thermistor

Internal delivery roller

Internal delivery sensor

Parts name

Parts No. FF5-4552-020 FF5-4552-020 FF5-4634-020 FB1-8581-000 FC1-9022-030 FF5-6980-000 FF5-7246-000 FH7-3314-000 FG5-6297-000 FG6-0626-000 FB5-0289-000 FB4-2867-000 FB1-7075-000 FA2-9037-000 FA3-8908-000 FB1-6823-000 FH7-4570-000 FH7-4573-000 FG6-3881-000 FB4-2901-000 FH7-7394-000

Q'ty

2 2 2 1 1 1 1 1 1 1 1 1 5 2 1 2 1 1 1 1 1

Life (copies)

120,000 120,000 120,000 240,000 240,000 240,000 240,000 240,000 240,000 480,000 240,000 240,000 240,000 240,000 160,000 240,000 360,000 360,000 240,000 240,000 500,000

Remarks Actual copies made. Actual copies made. Actual copies made. Actual copies made. Actual copies made.

1-3

Page 8

CHAPTER 1 MAINTENANCE AND INSPECTION

2. Side Paper Deck

As of Dec. 1998

No.

1 2 3

Parts name Side paper deck pick-up roller Side paper deck feeding roller Side paper deck separation roller

Parts No. FB4-2033-000 FB4-2034-000 FB2-7777-000

Q'ty

2 2 1

Life (copies)

250,000 250,000 250,000

Remarks Actual copies made. Actual copies made. Actual copies made.

1-4

Page 9

D. Image Basic Adjustment Procedure

Clean the primary charging roller /transfer charging roller. ¥ To clean the primary/transfer charging roller, use ’roller clean’ under ’adjustment/clean’ in user mode.

Clean the separation static eliminator.

Is the

setting of ’density

correction’ under ’adjust/clean’

in user mode the medium

value?

YES

It the

setting of

’ADJUST’ in service

mode the value indicated on the

label attached to the

front door?

Set it to the medium value.

Enter the value

indicated on the label.

Are there vertical lines (white, black)?

YES

Clean the separation static eliminator, dust-proofing glass, mirrors (No. 1, No. 2, No. 3), standard white plate, and lens.

Are the vertical lines gone?

YES

Service Mode ADJUST>DENS>DENS-ADJ

Set DENS-ADJ to 5.

Service Mode FUNCTION>CCD>CCD-ADJ

Execute auto correction.

Open the copyboard cover or the feeder, and make 2 solid black copies.

Service Mode Density Auto Adjustment 5 items under FUNCTION>DENS.

WHITE-ME, PD-DENS, PD-ME, DZ-DENS, DZ-ME

YES

Make 2 to 3 copies in non-AE at copy density 5.

Is the white background foggy?

End.

YES

Is the fogging in the white

background gone?

Service Mode ADJUST/DENS/DENS-ADJ

Set DENS-ADJ lower than 5.

1-5

Page 10

E. Points of Scheduled Servicing

Copyboard/Scanner

Item

Copyboard glass Original size sensor Scanning lamp Reflecting plate

No.1 through No.3 mirrors

Standard white plate Scanner rail

Tool/solvent

Alcohol Blower brush Lint-free paper Blower brush

Alcohol Alcohol, Lubricant

Work/remarks

Clean. Clean. Dry-wipe.

As necessary, dry-wipe with lint-free paper.

Clean

Clean, and lubricate.

Optical Assembly

Item

Lens Dust-proofing glass

Developing Assembly

Item

Developing roll

Tool/solvent

Blower brush Blower brush

Tool/solvent

Alcohol Clean.

Work/remarks

Clean. Clean.

Fixing/Delivery Assembly

Item

Separation Inlet guide

Tool/solvent

Solvent Solvent

Work/remarks

Clean. Clean.

Transfer/Feeding/Pick-Up Assembly

Item

Transfer guide Static eliminator Feeding assembly base/Feeding belt Pick-up/feeding/ separator roller

Tool/solvent

Moist cloth* Special brush Moist cloth*

Alcohol

*Take care not to leave droplets of water. Do not turn on the power before it is completely dry.

Work/remarks

Clean. Clean. Clean.

Clean.

1-6

Page 11

CHAPTER 2 STANDARDS AND ADJUSTMENTS

A. Image Adjustment

Adjust the image margin, and then the

non-image width.

Adjusting the Image Leading Edge

Margin and the Non-Image Width a. Change the following settings in service

mode so that they are as indicated on the service label.

• ADJUST>ADJ-XY>ADJ-X, ADJ-Y

• ADJUST>FEED-ADJ>REGIST

b. Adjusting the Image Margin

1) Put A4 or A3 paper in the cassette, and select the cassette.

2) Select '6' in service mode (TEST>PG> TYPE), and generate a solid black copy.

3) Make adjustments so that the margin is

2.5 ±1.5 mm. <Main Scanning Direction> Use the horizontal registration mount. (See A-2.) <Sub Scanning Direction> Use service mode (ADJUST>FEEDADJ>REGIST; see A-1).

c. Adjusting the Non-Image Width

1) Select the cassette used for adjusting the image margin, and make a copy of the NA-3 Chart.

2) Make adjustments so that the leading edge and left/right non-image widths are 2.5 mm. <Main Scanning Direction> ADJUST>ADJ-XY>ADJ-Y <Sub Scanning Direction> ADJUST>ADJ-XY>ADJ-X

Caution:

Be sure that the NA-3 is placed on the copyboard glass correctly.

2-1

Page 12

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Image Leading Edge Margin (REGIST; registration roller

activation timing)

Standard: 2.5 ±1.5 mm For steps see the previous page. n COPIER>ADJUST>FEED-ADJ>

REGIST

2.5 ± 1.5mm

Figure 2-1

• To increase the leading edge margin, increase the setting of REGIST (thereby delaying the activation of the registration roller).

• To decrease the leading edge margin, decrease the setting of REGIST.

n After adjusting the image leading edge

margin, be sure to make adjustments under ADJUST>ADJ-XY>ADJ-X. (See the descriptions for service mode.)

Adjusting the Left/Right

Registration (front)

a. Pick-Up from the Cassette

Check to see if the margin on the image

front is 2.5 ±1.5 mm for each cassette.

( ) ( + )

2.5 1.5mm

0 2

4 6

8 10

Figure 2-2

If it is not as indicated, perform the following:

1) Slide out the cassette in question.

2) Remove the two screws [1], and detach the horizontal registration mount.

2-2

[1]

Horizontal registration mount

Figure 2-3

Page 13

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2.5mm ±2.0

Decrease ADJ-REFE. (A decrease of 23 causes a change of 1 mm.)

Increase ADJ-REFE. (An increase of 23 causes a change of 1 mm.)

3) Loosen the hex screw, and move the horizontal registration plate to the front/ rear to make adjustments.

(front) (rear)

Hex screw diameter

Horizontal registration plate

Hex screw

Left/Right Registration for the 2nd Side of a Double-Sided/Overlay

Copy (rear/front direction)

Check to see if the image on the 2nd side

of a double-sided/overlay copy is as indicated.

• Standard: 2.5 mm ±2.0 mm

Figure 2-6

b. Pick-Up from the Multifeeder

4mm

Figure 2-4

Caution:

When making adjustments, match the inside of the L angle of the horizontal registration plate with the appropriate graduation of the scale.

Figure 2-5

Loosen the screw, and move the tray so that it is 2.5 ±1.5 mm in Direct mode.

If it is not as indicated, make adjustments

using the following in service mode:

COPIER>ADJUST>FEED-ADJ >ADJ-REFE

2-3

Page 14

CHAPTER 2 STANDARDS AND ADJUSTMENTS

4 Left/Right Registration (side paper deck)

1) Make a copy of the Test Sheet, and check to see if the left/right registration is 0 ±1.5 mm.

2) If it is not as indicated, slide out the compartment, and turn the two screws to adjust the position of the latch plate of the deck open solenoid. (At this time, refer to the scale on the latch plate.)

Latch plate

Scale

Screws

Figure 2-7 (rear left of the compartment)

2-4

Page 15

CHAPTER 2 STANDARDS AND ADJUSTMENTS

5 AE Adjustment

The machine's AE (auto density adjustment) based on "priority on speed," and its method and

concept are as follows:

1. Adjusting Priority on Speed AE Mode

ADJUST>AE>AE-TBL (1 through 9; 3 at time of shipment) Adjust the density correction curve (text) for priority on speed AE mode.

• A higher setting makes text lighter.

• A lower setting makes text darker.

Copy density

White

Black

Higher setting

Black

Lower setting

Original density

White

Figure 2-8

2-5

Page 16

CHAPTER 2 STANDARDS AND ADJUSTMENTS

B. Exposure System

1 Routing the Scanner Drive Cable

Route the cable from [1] through [9]; then, go to the next item, "Adjusting the Mirror Position."

Loosen the set screws to free the pulley.

Set screws

[7]

[9]

[2]

Fit the mirror positioning tool

[5]

Put the steel ball into the hole in the pulley. Wind the cable 3.5 times inwardly and

4.5 times outwardly; then, fit the pulley clip.

Steel ball

[8]

Pulley clip

[1]

[4]

2-6

38Å`39mm

[6]

[2][3]

Figure 2-9

Page 17

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2 Adjusting the Mirror Position

(optical length between No. 1 mirror and No. 2/No. 3 mirror)

Caution:

Use the mirror position tool FY9-3009-040. Be sure to relocate the pins before use.

[C]

[B]

[C][B]

[A]

[2]

[1]

FY9-3009-040 Before Repositioning the Pins

[3]

Figure 2-10

[3]

[2]

[1]

After repositioning the Pins

2-7

Page 18

CHAPTER 2 STANDARDS AND ADJUSTMENTS

1) Loosen the screws on the metal fixings used to secure the cable.

2) Fit the mirror positioning tools (after repositioning its pins) to the No. 1 mirror mount and the No. 2 mirror mount.

Rear tab

Front tab

Figure 2-11

3) Tighten the screws on the metal fixings.

4) Detach the mirror positioning tools.

2-8

Metal fixing

Figure 2-12

Page 19

CHAPTER 2 STANDARDS AND ADJUSTMENTS

3 Mounting the Scanning Lamp

Keep the following in mind when

mounting the scanning lamp:

1. Orient it so that the side (terminal) with the manufacturer's name is toward the rear.

2. Orient it so that its transparent side is toward the reflecting plate.

3. Do not touch the transparent side.

Transparent side

Reflecting plate

Figure 2-13

C. Image Formation System

1 When Replacing the Drum Unit

• Record the date and the counter reading on the label, and attach it to the front cover of the new drum unit.

date date Datum

counter compteur Zähler

• Clean the fixing separation claw (upper, lower).

notes note Notiz

Make the following adjustments when

replacing the scanning lamp:

1) Shading correction 2

FUNCTION>CCD>MAN-ADJ

2) Auto density correction

FUNCTION>DENS>WHITE-ME

PD-DENS PD-ME DZ-DENS DZ-ME

For details, see the description for

FUCNTION in service mode (VIII. of Chapter

14).

2-9

Page 20

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Positioning the Developing

Assembly Magnetic Seal

Mount the magnetic seal by butting it

against the opening as shown.

Check to make sure that the magnetic seal

is in firm contact with the housing.

Magnetic seal

Opening (butted)

Figure 2-14

Mounting the Developing

Assembly Blade

The blade is adjusted to a high accuracy when it is mounted to the blade mount. Avoid detaching it from its mount.

• If you must replace the blade on its own,

be sure to adjust the position of the blade

so that the gap between the blade and the

developing cylinder is 0.21 ±0.03 mm

when measured with a gap gauge (CK-

0057-000).

Blade

0.21± 0.03mm

Magnetic seal

(rear) (front)

Figure 2-15

Developing cylinder

Figure 2-16

The surface of the developing cylinder can easily be damaged. Be sure to slide the gap gauge along its both ends.

2-10

Page 21

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Adjusting the Positioning the Primary Charging Roller Cleaning

Solenoid

Make adjustments so that the length of the primary charging roller solenoid (SL1) indicated in the figure is 4.0 ±0.2 mm.

4.0 ± 0.2mm

Figure 2-17

D. Pick-Up/Feeding System

Adjusting the Positioning the

Multifeeder paper Guide Cam

Make adjustments so that the paper guide plate cam is as shown when the solenoid plate is in contact with the claw of the control ring.

Control ring

Screw w/ hex hole

Claw

Solenoid plate

Paper guide plate

Gear 1

Gear 2

Figure 2-18

2-11

Page 22

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Attaching the Timing Belt in

the Multifeeder

1) Butt the side guide plate of the multifeeder against the end (A; open condition).

2) Move the slide volume to the center (direction B), and fit the timing belt on the pulley.

Timing belt

Pulley

Rack plate

Slide volume

Pulley

Mounting the Multifeeder Pick-

Up Roller

Mount the multifeeder pick-up roller [1] so that the side with a cross [2] on its collar is toward the rear.

[2]

[1]

Figure 2-20

Figure 2-19

2-12

Page 23

Mounting the Delivery Assembly Paper Deflecting

Plate Solenoid (SL2)

1) Remove the delivery assembly.

2) Place the delivery assembly upright on a flat desk.

3) Push in the steel core of the paper deflecting plate 1 solenoid (SL2) until it stops.

4) Loosen the adjusting screw, and make adjustments so that the gap between the steel core E-ring of the solenoid and the solenoid frame is about 0.2 mm.

5) Mount the delivery assembly.

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Paper deflecting plate

1 solenoid (SL2)

Figure 2-21

0.2mm

2-13

Page 24

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Orienting the Multifeeder Pick-Up Roller

(side paper deck)

Mount the multifeeder pick-up roller by reversing the steps used to remove it with the

following in mind:

• The pick-up roller used at the front and the one used at the rear are not interchangeable.

• The collar of the pick-up roller used at the front is silver in color. When mounting the deck pick-up roller [1] for the front, orient it so that the marking [2] on the

collar (silver) is toward the front, and the marking [3] on the side of the roller is toward the rear.

[3]

(direction of rotation)

[1]

Collar (silver)

[2]

(front)

Figure 2-22 Pick-Up Roller for the Front

• The collar of the pick-up roller used at the rear is gold in color. When mounting the deck-pick-up roller [4] for the rear, orient it so that the marking [5] on the

side and the marking [6] on the collar (gold) are toward the rear.

[5]

(direction of rotation)

[6]

2-14

[4]

Collar (gold)

(rear)

Figure 2-23 Pick-Up Roller for the Rear

Page 25

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Orienting the Side Paper Deck

Feeding Roller

Mount the feeding roller [1] to the side paper deck pick-up assembly so that the belt pulley [2] is toward the front.

When attaching the pick-up/feeding roller rubber to the pick-up/feeding roller shaft, be sure that the marking [3] is toward the rear.

[5]

[3]

[4]

[2]

[1]

(front)

Positioning the Side Paper Deck Pick-Up Roller Releasing

Solenoid

Take note of the position of the two fixing screws of the deck pick-up roller releasing solenoid with reference to the scale on the support plate before removing the solenoid. Or, mark the position of the solenoid on the support plate with a scriber.

When mounting the solenoid on its own, be sure to secure it back to its initial position.

[2]

Figure 2-24

[1]

Figure 2-25

2-15

Page 26

CHAPTER 2 STANDARDS AND ADJUSTMENTS

E. Fixing System

When Mounting the Fixing

Heater

1) Do not touch the heater surface.

2) Orient it so that the side with the longer heater wire is toward the front.

3) Mount the main heater (700 W) to the right and the sub heater (600 W) to the left when viewing the fixing assembly from the front.

4) Connect the right faston of the heater to the main heater and the upper faston to the sub heater when viewing it from the rear. (The fastons are found at the rear.)

Sub heater

(Delivery side)

Main heater

(pick-up side)

Adjusting the Lower Fixing

Roller Pressure (nip)

If you have replaced the upper fixing roller or the lower fixing roller, or if fixing faults occur, make the following adjustments:

If you are taking measurements while the fixing roller is cold, leave the machine alone for 15 min after it ends its wait period and make 20 copies before taking measurements: <Taking Measurements>

1) Make an A4 solid black copy, and make a

copy of it. Set the output in the

multifeeder.

2) Select NIP-CHK in service mode

(FUNCTION>FIXING), and press the

OK key.

3) The paper will be picked up and is stopped

between the fixing rollers temporarily;

then, it will automatically be discharged in

about 20 sec.

4) Measure the width of the area where toner

is shiny (Figure 2-27).

Upper fixing roller

Figure 2-26

Positioning the Fixing

Assembly Paper Guide

Caution:

If you removed the inlet guide plate, you would need to adjust the position of the inlet guide. To avoid the work, do not loosen the mounting screw (paintlocked) on the inlet guide mount; otherwise, be sure to set it to its initial position by referring to the scale on the fixing assembly.

(Feeding direction)

Center of the copy

Figure 2-27

Caution:

a and c are points 10 mm from both edges of the copy paper.

Point

a-c

* Measured when the upper/lower roller is

adequately heated.

Measurements*

5.5 ±0.3 mm

0.5 mm or less

2-16

Table 2-1

Page 27

5) If not as indicated, turn the pressure adjusting screw 1 found at the rear and the front of the fixing assembly to make adjustments.

[1]

Figure 2-28

When Replacing the Lower

Fixing Roller

CHAPTER 2 STANDARDS AND ADJUSTMENTS

When replacing the lower fixing roller or

the bearing of the lower roller shaft, be sure to apply heat-resisting grease (MO-138S) to the shaft to prevent adhesion of the shaft and the bearing.

2-17

Page 28

CHAPTER 2 STANDARDS AND ADJUSTMENTS

F. Electrical System

1 Replacing the Major Part

Parts

Image processor PCB

[A]

Composite power supply PCB

Laser scanner unit

Laser unit CCD unit Scanning lamp DC controller

PCB Standard white

plate Control panel LCD

Multifeeder size detecting volume

Fixing assembly Fixing cleaning

belt

Description/Service mode

n Before Replacement

Generate stored data of ADJUST, OPTION, and COUNTER.

n After Replacement

1) Execute RAM clear (image processor PCB).

2) Enter data under AJDUST and OPTION.

3) Execute shading auto correction 2.

4) Execute density correction.

4-1) Execute standard white plate

density read. 4-2) Execute density auto correction. 4-3) Execute DZ density auto

correction. n After Replacement

1) Enter the values indicated on the

label attached to the composite power supply PCB in service mode.

2) Execute shading auto correction 1.

3) Execute auto density correction.

1) Execute shading auto correction 1.

2) Execute auto density correction.

1) Execute shading auto correction 2.

2) Execute auto density correction.

Adjust the coordinate position of the analog touch panel.

Store the paper width basic value for the multifeeder.

Nip (as indicated?) Execute cleaning belt clear.

FUNCTION>MISC-P>P-PRINT

FUNCTION>CLEAR>IP YAKUNUKE FUNCTION>CCD>MAN-ADJ

FUNCTION>DENS>WHITE-ME FUNCTION>DENS>PD-DENS

FUNCTION>DENS>DZ-DENS FUNCTION>DENS>DZ-ME

FUNCTION>CCD>CCD-ADJ Same as [A] above.

FUNCTION>CCD>CCD>ADJ Same as [A] above.

FUNCTION>CCD>MAN-ADJ Same as {A] above.

FUNCTION>PANEL>TOUCHKEY

FUNCTION>CST>MF-A4R, A6R, A4

FUNCTION>FIXING>NIP-CHK COUNTER>MISC>FIX-WEB

2-18

Page 29

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2 Shading Auto Correction

• Shading auto correction may be either of two types (CCD-ADJ, MAN-AJD). Select the appropriate mode.

• In shading auto correction, various data measurements are taken and stored in the RAM on the image processor PCB for use as the target value for shading correction performed before scanning operation. The following are service mode item related to shading auto correction; see the appropriate service mode item for details:

ADJUST

FUNCTION

ADJ-XY CCD

CCD

ADJ-S PPR W-PLT CCD-ADJ MAN-ADJ

standard white plate read position standard white paper density data standard white plate density data shading auto correction 1 (for normal image adjustment) shading auto correction 2 (for PCB, lamp replacement)

n Using CCD-ADJ

• Start service mode.

1) Press the asterisk key.

2) Press '2' and '8' on the keypad at the same time.

3) Press the asterisk key.

4) On the screen, select <COPIER>, <FUNCTION>, and <CCD> in sequence.

5) Select <CCD-ADJ>, and press the OK key. (You need not place standard white paper.)

n Using MAN-ADJ

1) Remove the rear cover, and check the position of VR200 on the DC controller PCB.

2) Place the standard white paper on the copyboard glass.

3) Start service mode. (See steps 1) through 4) under "Using CCD-ADJ.")

4) Select <MAN-ADJ>, and press the OK key.

5) When VO is indicated and the beep is sounded, press the OK key. If the beep is not heard, turn VR200 on the DC controller PCB; when the beep is sounded, press the OK key. Adjustments are needed if LED201 turns on.

6) Check to see if END is indicated.

DC controller PCB

Figure 2-29

LED201

VR200

2-19

Page 30

CHAPTER 2 STANDARDS AND ADJUSTMENTS

3 Copy Density Auto Correction

n Execute copy density auto correction for the following:

The copy image is not proper (image fault). The laser unit has been replaced. The image processor has been replaced. The composite power supply PCB has been replaced.

n When executing copy density auto correction, be sure to execute the following three types (five

items) as a set. Be sure to execute shading correction before executing density correction.

• Standard white paper density read FUNCTION>DENS>WHITE-ME

• PD density auto correction FUNCTION>DENS>PD-DENS (text, text/photo mode) FUNCTION>DENS>PD-ME

• DZ density auto correction FUNCTION>DENS>DZ-DENS (photo mode) FUNCTION>DENS>DZ-ME

n The following blocks are subjected to correction processing:

Laser characteristic correction

Developing bias correction n Executing the Mode a. Executing Shading Correction

1) Start service mode.

2) Select COPIER>FUNCTION>CCD in sequence; then, select <CCD-ADJ>.

3) Press the OK key. (You need not place standard white paper.)

4) End service mode; then, make two solid black copies while holding the feeder or the copyboard

glass open. Check to make sure that white lines did not occur.

2-20

Page 31

CHAPTER 2 STANDARDS AND ADJUSTMENTS

b. Executing WHITE-ME

1) Place five sheets of standard white paper, and close the feeder or the copyboard cover.

• Be sure that the paper is A4 or larger and placed vertically.

2) Start service mode, and select COPIER>FUNCTION-DNS>WHITE-ME.

3) Press the Copy Start key.

• The scanner moves forward and reads the white paper.

White paper

Figure 2-30

c. Executing PD-DENS

1) Select COPIER>FUNCTION>DENS>PD-DENS, and press the OK key.

• A 15-graduation patter will be generated. (The patches are black.)

d. Executing PD-ME

1) Remove the white paper from the copyboard, and place the PD-DENS output on the copyboard.

• Place the printed side down (for reading the pattern).

• Place the white side as the leading edge and the black side toward the center.

• Be sure to place originals against the marking V on the copyboard glass.

In practice, place it so that the printed side is down.

PD-DENS output

Figure 2-31

2-21

Page 32

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2) Select <PD-ME> under <PD-DENSE>; then, press the OK key.

• The scanner makes 13 scans.

3) After reading operation, PD auto density correction ends when OK is indicated to the right of

<PD-ME>. If NG, check the following:

• Is the original placed correctly?

• Is the original the PD-DENS output? (The patches are black.) After checking the above, execute PD-DENS once again. If still NG, go to the next page.

d. Executing DZ-DENS

1) Select COPIER>FUNCTION>DENS>DZ-DENS; then, press the OK key.

• A 15-gradation pattern will be generated. (The patches are white.)

e. Executing DZ-ME

1) Remove the PD-DENS output (black patches), and place the DZ-DENS output (white patches) on the copyboard glass.

In practice, place the printed side down.

DZ-DENS output

Figure 2-32

2) Select <DZ-ME> under DZ-DENS, and press the OK key.

• The scanner makes 13 scans.

3) After read operation, PD auto density correction ends when OK is indicated to the right of <DZ-ME>. If NG, check the following:

• Is the read original placed correctly?

• Is the read original the DZ-DESN output? (The patches are white.) After checking the above, execute DZ-DENS once again. If still NG, go to the next page.

2-22

Page 33

CHAPTER 2 STANDARDS AND ADJUSTMENTS

n If PD-ME/DZ-ME Is NG

1. Clean the scanner.

2. Isolate the problem.

Execute toner stirring COPIER>FUNCTION>INSTALL>TONER-S Execute drum resistance measurement COPIER>FUNCTION>DPC>D-GAMMA A this time, take notes of the measurement of D-GAMMA.

3. Execute copy density correction once again. If the result is still NG, perform the following according to the measurement of D-GAMMA. If 2.3 or higher, replace the drum cartridge. If 0.1 or lower, replace the developing assembly.

2-23

Page 34

CHAPTER 2 STANDARDS AND ADJUSTMENTS

4 Storing the Multifeeder Paper Width Basic Value

Execute this mode if you have replaced the multifeeder paper width detecting volume. Be sure to try A4R, A6R, and A4 in the order indicated.

n Execution

1) Replace the paper width detecting VR.

2) Start service mode. asterisk key -> '2' and '8' at the same time -> asterisk key

3) Select COPIER>FUNCTION>CST, and highlight <A4R>.

Display

< CST >

MF-A4R MF-A6R MF-A4

I/O

Adjust

Function

< 1/1 > < READY >

Option Test

+/-

Counter

Figure 2-33

4) Place A4R paper in the multifeeder, and adjust the side guide to the paper width.

5) Press the OK key.

6) Repeat steps 3) through 5) for A6R and A4 as in A4R.

7) Press the Reset key to end service mode; then, turn off and then on the main power switch.

2-24

VR output ➞

A4R

A6R

(105mm)

Paper width ➞

Figure 2-34

A4R

(210mm)A4(297mm)

Page 35

CHAPTER 2 STANDARDS AND ADJUSTMENTS

5 Checking the Photointerrupters

The photointerrupters may be checked in either of the following two methods: a. Using a meter. b. Using service mode (I/O mode).

a. Using a Meter

You cannot insert the meter probe directly into the connectors of the machine's PCBs, as they are designed specially to enable smooth connection. Obtain a probe extension tool (FY9-3038-000/ FY9-3039-000).

1) Set the digital multimeter range to 12 VDC.

2) Connect the meter probe to GND (0 VDC) of the DC controller PCB.

3) Make a check as indicated. (Use the probe extension and the clip as necessary.)

[ Connection 1 ]

Pinch the pin.

FY9-2003-000

Meter

[ Connection 2 ]

Pinch the pin

Probe extension

(FY9-3038)

FY9-2004-000

Probe extension

Clip

7537

DIGITAL

MULTIMETER

YOKOGAWA

D•H

Å|

Å{

REL/%

POWER

MIN/MAX

DATA-H

RANGE

AVG

SELECT

/Å`/Hz

ÉA

10A

Å}

Åé

É∂

/Å`/ADP/KÅé

+ Å`

LoHz/rpm

OPEN

Å`V

TERMINAL

SHUTTER

TRUE RMS

kHz

0.1% V

mA•ÉA

COM

FUSED

V•

FUSED

É∂

•

1000V MAX

Meter

7537

DIGITAL MULTIMETER

YOKOGAWA

D•H

Å|

Å{

REL/%

POWER

MIN/MAX

DATA-H

RANGE

AVG

SELECT

/Å`/Hz

ÉA

10A

Å}

Åé

É∂

/Å`/ADP/KÅé

+ Å`

LoHz/rpm

OPEN

Å`V

TERMINAL

SHUTTER

TRUE RMS

kHz

0.1% V

mA•ÉA

COM

FUSED

V•

FUSED

É∂

•

1000V MAX

Figure 2-35

b. Using Service Mode

1) Start service mode.

2) Press COPIER>I/O, and select DC-CON.

The bit number notations in the tables that follow represent the following:

ex.P001 00000000

bit7 bit0

2-25

Page 36

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Notation name

Meter probe Service mode Check (Normal if

described.)

Display reading Meter reading (approx.)

Notation name

Meter probe Service mode Check (Normal if

described.)

Display reading Meter reading (approx.)

PS1

Scanner home position sensor (PS1S)

J112-B5

While in standby, move the scanner from the home position.

When the scanner is at the home position,

5 V

Registration paper sensor (PS4S)

While in standby, open the right door, and insert paper.

When paper is not inserted,

5 V

When the copyboard cover is closed,

0 V

PS4

J108-B11 P004-bit3

When paper is inserted,

0 V

PS2

Copyboard cover open/ closed sensor (PS2S)

J108-B2

P003-bit13

While in standby, open and close the copyboard cover.

When the scanner is not at the home position,

5 V

Internal delay sensor (PS6S)

While in standby, open the delivery assembly, and move the flag of PS6.

When the flag is blocking the sensor (paper absent),

5 V

When the cupboard cover is opened,

0 V

PS6

J106-2

P004-bit8

When the flag is not blocking the sensor (paper present),

0 V

PS3

Multifeeder paper sensor (PS3S)

J108-B17 P005-bit1

While in standby, place paper on the multifeeder tray.

When paper is placed,

5 V

External delivery sensor (PS7S)

While in standby, open the delivery assembly, and move the flag of PS7.

When the flag is not blocking the sensor (paper present),

5 V

When paper is not placed,

0 V

PS7

J107-2

P004-bit5

When the flag is blocking the sensor (paper absent),

0 V

2-26

Page 37

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Notation name

Meter probe Service mode Check (Normal if

described.)

Display reading Meter reading (approx.)

Notation name

Meter probe Service mode Check (Normal if

described.)

PS8

Duplexing assembly inlet paper sensor (PS8S)

J114-B2

P004-bit5

While in standby, open the delivery assembly, and move the flag of PS8.

When the flag is blocking the sensor (paper absent),

5 V

Vertical path sensor (PS11)

While in standby, move up the lever of PS11.

When the flag is not blocking the sensor (paper present),

0 V

PS11

J108-B8

P004-bit2

PS9

Re-pick up sensor (PS9S)

J114-B5

P004-bit10

While in standby, open the duplexing unit, and move the flag of PS9.

When the flag is blocking the sensor (paper absent),

5 V

Right cover open/ closed detecting sensor (PS12S)

While in standby, open the right door.

When the flag is not blocking the sensor (paper present),

0 V

PS12

J108-B14

P003-bit13

PS10

Horizontal registration paper sensor (PS10S)

J102-A8

P004-bit11

While in standby, open the right door; then, insert paper into the repick up assembly, and slide it to the rear.

When the paper is slid to the rear,

5 V

Left cover open/closed sensor (PS13S)

While in standby, open the left door.

When the paper is not slid to the rear,

0 V

PS13

J114-5

P003-bit11

Display reading Meter reading (approx.)

When the lever is moved up (paper present),

5 V

When the lever is moved back (paper absent),

0 V

When the right door is closed,

5 V

When the right door is open,

0 V

When the left door is closed,

5 V

When the left door is open,

0 V

2-27

Page 38

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Notation name

Meter probe Service mode Check (Normal if

described.)

Display reading Meter reading (approx.)

Notation name

Meter probe Service mode Check (Normal if

described.)

PS14

Front cover open/ closed sensor (PS14S)

J102-A11 P003-bit4

While in standby, open the front cover.

When the front cover is open,

5 V

Fixing assembly outlet sensor (PS40S)

While in standby, push the lever on the fixing assembly outlet assembly.

When the lever is pushed,

When the front cover is closed,

0 V

PS40

J114-A2

P004-bit9

When the lever is not pushed,

PS18

Cassette 1 pick-up sensor (PS18S)

J108-A17 P004-bit0

While in standby, slide out the cassette, and insert paper between the pick-up rollers.

When paper is inserted,

5 V

When paper is not inserted,

0 V

PS19

Cassette 1 pick-up sensor (PS19S)

J108-A18 P004-bit1

While in standby, slide out the cassette, and insert paper between pick-up rollers.

When paper is inserted,

5 V

When paper is not inserted,

0 V

Display reading Meter reading (approx.)

2-28

5 V

0 V

Page 39

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

CHAPTER 3

ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

3-1

Page 40

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

A. Clutches and Solenoids

SL2

SL6

SL4

CL4

SL1

CL2

SL3

CL1

CL3

SL5

3-2

Figure 3-1

Page 41

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Clutches and Solenoids

Symbol Part

Clutch

C L

Solenoid

S L

Notation

CL1 CL2

CL3 CL4

SL1 SL2 SL3

SL4 SL5 SL6

Function

Drives the registration roller. Drives the multifeeder pick-up mechanism. Drives the vertical path roller. Drives the developing cylinder.

Moves down the pick-up roller. Drives the delivery flapper. Releases the multifeeder holding plate. Cleans the primary charging roller. Drives the fixing cleaning belt. Drives the fixing assembly inlet guide.

3-3

Page 42

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

B. Motors

M10

3-4

Figure 3-2

Page 43

Motor

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Symbol Part

Motor

Notation

M1 M2 M3 M4 M5 M6 M7 M8 M9

M10

Function

Main motor Fixing motor Scanner motor Laser scanner motor Pick-up motor Lower feeder motor Reversal delivery motor Delivery motor Horizontal registration sensor shift motor Duplexing reversal motor

3-5

Page 44

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

FM10

FM11

FM8

FM7

FM17

FM18

C. Fan

FM13

FM12

FM3

FM4

FM9

FM2

FM1

FM5

FM16

FM15

FM14

FM6

Figure 3-3

3-6

Page 45

Fans

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Symbol Part

fan

* Rotates at half speed during standby.

Notation

FM1 FM2* FM3* FM4* FM5* FM6* FM7* FM8*

FM9 FM10

FM11

FM12* FM13*

FM14 FM15 FM16

FM17* FM18*

Function

Feeding fan Fixing heat discharging fan 1 Fixing heat discharge fan 2 Laser drive cooling fan Laser scanner motor cooling fan 1 Laser scanner motor cooling fan 2 Cleaner cooling fan System cooling fan Reversal guide cooling fan Low-voltage power supply cooling fan 1 Low-voltage power supply cooling fan 2 Reader cooling fan 1 Leader cooling fan 2 Drum cartridge cooling fan 1 Drum cartridge cooling fan 2 Drum cartridge cooling fan 3 DC controller PCB cooling fan Scanner motor cooling fan

3-7

Page 46

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

D. Sensors

PS2

PS14

PS4

SD4

PS1

SD3

PS11

PS18

PS3

PS12

PS13

PS7

PS8

PS6

PS40

SD1

PS9

SD2

PS19

PS10

TS1

3-8

Figure 3-4

Page 47

Sensors

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Symbol Name

Photointerrupter

Piezoelectric oscillating element

Notation

PS1 PS2

PS3 PS4 PS6

PS7 PS8

PS9

PS10 PS11

PS12 PS13 PS14 PS18 PS19 PS40

TS1

Remarks

Scanner home position detection Copyboard cover open/closed detection Multifeeder paper detection Pre-registration paper detection Internal delivery assembly paper detection External delivery assembly paper detection Re-pick up assembly paper detection Re-pick up assembly paper detection Horizontal registration paper detection Vertical path paper detection Right door open/closed detection Left door open/closed detection Waste toner detection Cassette 1 retry paper detection Cassette 2 retry paper detection Fixing assembly outlet paper detection

Toner level detection

Reflecting type sensor

SD1 SD2 SD3 SD4

Original size sensor 1 Original size sensor 2 Original size sensor 3 Original size sensor 4

3-9

Page 48

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

E. Switches and Counters

SW1

SW3

SW2

FL1

TH2

TH1

RL1

SSR1

CB1

THSW1

VZ1

LCD1

CNT1

3-10

Figure 3-5

Page 49

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Switches, Counters, Heaters, Varistors, and Fuses

Part

Switch

Counter Varistor SSR Scanning lamp (fluorescent

lamp) Heater

Thermistor

Thermal switch Circuit breaker

Notation

SW1 SW2 SW3

CNT1

VZ1

SSR1

FL1

H1 H2

TH1 TH2

THSW

CB1

Name

Main power supply switch Front door switch Cassette heater switch

Total copy counter 1 Pre-registration guide varistor Solid state relay Scanning lamp

Fixing main heater Fixing sub heater

Fixing heater main thermistor Fixing heater sub thermistor (end)

Fixing heater thermal switch Circuit breaker

3-11

Page 50

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

F. PCBs

3-12

Figure 3-6

Page 51

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Switches, Counters, Heaters, Varistors, and Fuses

Part

1 2

3 4 5 6 7 8

9 10 11 12 13 14 15

16 17 18 19 20

21 22 23

Notation

Composite power supply PCB DC controller PCB

Image processor PCB Accessories power supply Pick-up unit PCB Low-voltage power supply PCB Noise filter Control panel key PCB Control panel CPU PCB Inverter PCB Downloading PCB Function key PCB Upper cassette size detection PCB Lower cassette size detection PCB Multifeeder paper width detection PCB Laser driver PCB Laser scanner driver PCB Analog processor PCB BD PCB Pre-exposure lamp PCB

Environment sensor PCB Intensity sensor PCB Battery PCB (accessory)

Name

HVT, lamp regulator, DC power supply DC load control (DC driver) Image processing (main controller) DADF, side paper deck Pick-up assembly sensor DC power supply AC power supply noise removal

LCD (back light) power supply

Upper cassette size detection Lower cassette size detection Multifeeder paper width detection

Laser dive Laser scanner motor drive CCD drive, analog image processing Laser beam detection Photosensitive drum residual charge removal Machine internal humidity detection Scanning lamp intensity detection Fax image memory retention

3-13

Page 52

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

G. Side Paper Deck

1. Sensors and Switches

PS104

PS102

PS109

SW102

PS107

SW101

PS108

PS106

PS105

SW100

PS103

PS101

3-14

Figure 3-7a (side paper deck)

Page 53

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Symbol Part

Photointerrupter

Switch Microswitch

Table 3-1a (side paper deck)

Notation

PS102 PS103 PS104 PS105 PS106 PS107 PS108 PS110

SW100 SW102 SW103

Function

Deck lifter upper limit detection Deck paper supply position detection Deck set detection Deck pick-up guide open detection Deck vertical path paper detection Deck pick-up paper detection Deck paper detection Deck lifter position detection

Deck open switch Deck open detecting switch Deck lifter upper limit detecting switch

3-15

Page 54

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

2. Motors, Solenoids, and PCBs

SL101

CL101

CL102

SL102

M102

[1]

M101

[2]

3-16

Figure 3-7b (paper deck)

Page 55

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

Symbol Part

Motor

Clutch

C L

Solenoid

S L

PCB

Table 3-1b (paper deck)

Notation

M101 M102

CL101 CL102

SL101 SL102

[1] [2]

Function

Deck main motor Deck lifter motor

Deck vertical path clutch Deck pick-up clutch

Deck pick-up roller releasing solenoid Deck open solenoid

Side deck driver PCB Open switch PCB

3-17

Page 56

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

H. Variable Resisters, Light-

Emitting Diodes, and Check Pins by PCB

Of the variable resistors (VR), lightemitting diodes (LED), and check pins used in the machine, those needed in the field are discussed.

Caution:

1. Some LEDs emit dim light when they are 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. :

Caution:

Those VRs and check pins not listed in the tables are for factory use only, requiring special tools and high accuracy. Do not touch them in the field.

3-18

Page 57

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

1. Image Processor PCBs (main controller)

J715 J716

J714

J713

J723

J724

J712

J722 J721

SW702

OFF

J720

J717

J702

J703

J701

J704

J705

J706

SW701

J711

J710

J709

J718

J707

J708

Figure 3-8

J721: Flash ROM slot for the IP-CPU (IP, DIMM); use the bottom slot for a 4-MB DIMM,

and the top slot for a 1-MB DIMM. J722: Flash ROM slot for the DC-CPU (DCC DIMM); 1-MB, DIMM K723, J724: Slot for expansion memory (32 MB each); however, be sure to use J723 first (as when

installing only one DIMM). J720: Not used.

3-19

Page 58

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

n SW701 States

SW1 SW2 SW3 SW4 SW5 SW6

AB OFF OFF OFF OFF OFF OFF

Inch

OFF

AB/Inch

ON ON

OFF

ON OFF OFF

OFF

ON ON ON

OFF

n Size Configuration

Use service mode to set the appropriate size (COPIER>OPTION>BODY>MODEL-SZ).

MODEL-SZ setting

Inch

AB/Inch

0 1 2 3

The setting will affect the following items:

• Pattern for default enlargement/reduction.

• Size detection by the feeder. (If the setting under FEEDER>OPTION>SIZE-SW in service mode is '1', AB/Inch detection will be made regardless of the country of installation.

n Arrangement of the Original Sensor

The arrangement of original sensors may be changed. If the feeder is used, these switch settings need not be changed, since detection will be by the feeder. For sensor arrangement, see "Identifying the Size of Originals" in Chapter 3. Use SW5 and SW6.

Inch

OFF

Inch OFF OFF

3-20

Page 59

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

2. DC Controller PCB (DC driver)

J101

J114

J113 J112

J111

J110

J109

LED201

J116

J118

J115

J117

J119

J102

LED200

J103J104

VR200

J105

J106

J108

J107

Figure 3-9

LED200: Check it to find out the state of the composite power supply PCB is indicated by

flashing at different intervals. For details, see Table 13-601.

VR200: Turn it to adjust the lamp intensity used when shading auto correction

(FUNCTION>CCD>MAN-ADJ) is executed in service mode. The result is good if LED201 turns on. Its adjustment range is equal to 3 rotations. If LED201 does not turn on after a single rotation, try rotating it in the opposite direction.

LED201: Check it to find out whether VR200 is correctly adjusted (it should turn on).

3-21

Page 60

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

States and LED Flashing Intervals

Flashing intervals

u Flashes at 0.5-sec intervals

0.5 sec

ON OFF

0.5 sec

u OFF for 4 sec; then, flashes twice

at 0.5-sec intervals

0.5 sec

OFF

4 sec

Twice

u OFF for 4 sec; then, flashes 5 times

at 0.5-sec intervals.

0.5 sec

OFF

4 sec

3 times

u OFF for 4 sec; then, flashes 3times

at 0.5-sec intervals.

0.5 sec

OFF

4 sec

5 times

u OFF for 4 sec; then, flashes 4 times

at 0.5-sec intervals.

0.5 sec

OFF

4 sec

4 times

u OFF for 4 sec; then, flashes 6 times

at 0.5-sec intervals.

0.5 sec

OFF

4 sec

6 times

State

Normal

Over-current/over-

voltage detected

Error in

communication

with the DC

controller PCB

Low-voltage

control error* in

standby

Low-voltage

control error*

during copying

DC controller PCB

check sum

Error detection

Description

The composite power supply PCB is operating normally.

An over-current/over-voltage condition has been detected in the +24-VU or +24-VR output. An over-current condition has been detected because of wire trapping or the like. n The control panel indicates 'E803'.

An error has occurred in communication between the DC controller PCB and the composite power supply PCB, not updating the communication data for 8 sec or more. Note that this error may not flash/turn on LED100 on the DC controller PCB.

• The output of the main transformer stops.

• The control panel indicates 'E191'.

In standby, the difference between the +24-VR setting and the actual control value is larger than indicated.

• The output of the main transformer stops.

• Error data is sent to the DC controller PCB.

• The control panel indicates 'E803'.

During copying, the difference between the +24-VR setting and the actual control value is larger than indicated.

• +24 VR is set to standby voltage (+18 VR).

• Error data is sent to the DC controller PCB.

• The control panel indicates 'E803'.

The CPU on the DC controller PCB has detected a check sum of communication data twice or more continuously.

• The output of the main transformer stops.

• The control panel indicates 'E191'.

* The same error can occur owing to activation error in the fluorescent lamp (because of deterioration

over time). If the LED flashes in threes or fours, check to see if the glass around the filament on both sides of the lamp is not black.

3-22

Page 61

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

3. Composite Power Supply CPB

J204

J206

J208

J220

J205

J209

J203

J201

J210

Figure 3-10

Label: Enter the values indicated on the label in service mode when replacing the composite

power supply CPB.

OFST-DC AGS-GAIN AGS-OFST OFST1-AC FL-OFST

xx xxx xxx xxx xxx

Table 3-2 Label on the Composite Power Supply PCB

3-23

Page 62

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

4. Deck Driver (side paper deck)

13 6

J103

J104

J107

J105

J106

Figure 3-11

J101

J102

1 8

J108

J109

3-24

Page 63

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

I. Upgrading

The machine may be upgraded in either of the following two ways:

• By replacing the DIMM on the image processor PCB.

• By updating the DIMM contents through downloading from a computer.

1. Replacing the DIMM

The DIMM (flash ROM) used in the machine comes in two types; both types are mounted on

the image processor PCB. Figure 3-12 shows a view in which the IP small cover has been removed:

• DIMM for the IP-CPU 4 MB: bottom of 2-layer slot 1 MB: top of 2-layer slot

• DC-CPU DIMM (1 MB)

DIMMs lot for

Image processor PCB

DC-CPU

IP cover

Figure 3-12

DIMM slot for IP-CPU

3-25

Page 64

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

1. Removing the DIMM

1) Turn off the main power switch, and disconnect the power cord.

2) Remove the copyboard glass; then, remove the screw, and detach the small cover from the IP cover.

Small cover

M4 × 4bis

3) Open the slot claw, and pull off the DIMM as if to lift it.

IP,DIMM(1MByte)

Push

Figure 3-13

Figure 3-14

3-26

Page 65

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

2. Mounting the DIMM

1) Check the DIMM slot on the IP PCB. The wrong slot can cause malfunction; pay attention. (Figure 3-12)

2) Insert the DIMM into the slot at an angle. At this time, check to be sure that the DIMM is fully inserted into the slot.

3) Shift down the DIMM until the claw of the slot clicks into position. At this time, do not force in the DIMM; such can damage the DIMM.

IP, DIMM (1 MB)

Cut-off

4) Mount the IP small cover (M4x4 screw, 1 pc.); then, mount the copyboard cover. Connect the power cord, and turn on the main power supply.

Figure 3-15

3-27

Page 66

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

3. Downloading

1. Before Starting the Work Obtain the following:

• PC to which the downloading tool (service tool) has been installed.

• Bi-Centronics cable (with an IEEE 1284 Standard-compliant marking)

2. Downloading

a. Connection

• Check to make sure that the communication memory lamp is off.

1) Turn off the machine's main power switch; then, disconnect the power plug, and disconnect the modular cable (telephone).

2) Open the front door, and open the connector cover for downloading.

3) Connect the machine to the PC with a biCentronics cable.

• Make sure that the PC is off.

• Connect the 25-pin connector of the cable to the PC, and 36-pin connector to the machine.

4) Slide the switch to LOAD.

Downloading switch

COPY

LOAD

Bi-Centronics interface connector

Figure 3-17

5) Turn on the PC, and start the downloading tool.

Connector cover for downloading

Figure 3-16

Downloading switch

COPY LOAD

Connector cover opened

3-28

Page 67

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

6) Connect the machine's power plug to the power outlet, and turn on the main power switch.

b. Downloading

1) Select 'To Main Menu' in response to the start-up message of the downloading tool.

End

To Main Menu

2) Select 'Next' under the Download/Upload.

Manage Data

Download/Upload

Click the model and PCB for downloading. IP: DIMM for the IP-CPU DC-CON: DIMM for the DC-CPU

4) Start upgrading the flash ROM following the instructions on the PC screen.

5) When downloading is done, operate as follows to turn off the PC: OK → To Main Menu → End Tool → End

To Main Menu

End

End Tool

3-29

Page 68

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS

c. After Downloading

1) Turn off the machine's main power switch, and disconnect the power plug.

2) Disconnect the bi-Centronics cable from the PC and the machine.

3) Slide the download switch to COPY.

Downloading switch

COPY

LOAD

Figure 3-18

4) Close the connector cover, and close the front door.

5) If the machine is equipped with fax functions, connect the modular cable.

6) Turn on the main power switch.

7) Start service mode, and check the ROM version. COPIER> DISPLAY>VERSION

3-30

Page 69

CHAPTER 4 SERVICE MODE

A. Outline

The machine's service mode is divided into the following seven:

CHAPTER 4 SERVICE MODE

Cause

1 2 3 4 5 6 7

Step DISPLAY I/O DISPLAY ADJUST FUNCTION OPTION TEST COUNTER

Display Mode I/O Display Mode Adjustment Mode Function Mode Setting Mode PG Test Mode Counter Mode

Check

Table 4-1

1. Starting Service Mode and Making Selections

1) Press the asterisk key '

Display

Adjust

Function

OptionTest

Counter

I/O

<1/1> <READY>

<LAMP>

<(yyyyy) {aaaaa~ bbbbb}

xxxxx

FL-OFST

A press on

xxxxx: value before change

an item highlights

yyyyy: input value

the notation.

aaaaa-bbbbb: value input range

FL-OFST

' on the control panel.

+/-

2) Press '2' and '8' on the keypad at the same time.

3) Press the asterisk key '

' on the control panel.

• The display changes to the screen shown in Figure 13-801, indicating the connected accessories (FEEDER, SORTER, FAX).

COPIER FEEDER

SORTER

FAX

COPIER Copier service mode FEEDER DADF service mode SORTER Finisher service mode FAX Fax service mode

Figure 4-1

4-1

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CHAPTER 4 SERVICE MODE

2. Ending Service Mode

Press the Reset key once to return to the Service Mode Initial screen (Figure 4-1). Press the Reset key twice to end service mode and return to the User screen (standard).

3. Backing Up the RAM

The RAM data may be backed up in either of the following two ways: Service Label: The label is found on the left side of the back of the front cover (Figure 4-2).

Each machine is adjusted at the factory, and the adjustment values are recorded in the label.

List Print: The command generates a back-up output of ADJUST, OPTION, and

COUNTER. COPIER>FUNCTION>MISC-P>P-PRINT

• When Replacing the Image Processor PCB Enter the values indicated in the list print obtained before replacement.

• When Replacing the Composite Power Supply PCB Enter the values indicated on the label attached to the composite power supply.

4-2

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CHAPTER 4 SERVICE MODE

COPIER/ADJUST Service Date LAPM FL-OFST

FL-DUTY

FL-PDUTY AE AE-TBL ADJ-XY ADJ-X

ADJ-Y

ADJ-S

CCD PPR

W-PLT

LASER

DEVELOP DE-DC

DENS

HV-PRI P-DC

Boby No.

PVE-OFST

LA-OFF

DE-NO-DC

DE-OFST

DENS-ADJ

P-NO-DC

P-AC

P-NO-AC

Factory

Date.

COPIER/ADJUST

Service Date HV-PRI

HV-TR TR-N1

FEED-ADJ REGIST

CST-ADJ MF-A4R

AGS-GAIN AGS-OFST OFST1-DC OFST1-AC OFST2-AC P-AC2 P-AC3

TR-N2 TR-OFST TR-SPP

LOOP-CST LOOP-MF ADJ-REFE RVS-FD1 RVS-FD2 RVS-DUP

MF-A6R MF-A4

Factory

FB4-3277

1 2

Figure 4-2 Service Label

OFST-DC AGS-GAIN AGS-OFST OFST1-AC FL-OFST

xx xxx xxx xxx xxx

Figure 4-3 Label on the Composite Power Supply PCB

4-3

Page 72

CHAPTER 4 SERVICE MODE

4. Basic Operation

The screen design consists of three layers: Level 1, Level 2, and Level 3 screens.

a. Initial Screen

COPIER FEEDER

SORTER

FAX

Initial items However, FEEDER, SORTER,

and FAX appear only when they are installed.

Figure 4-4

• An initial item is selected when the highlighted notation is pressed.

b. Level 1/Level 2 Screen

Display

VERSION USER ACC-STS ANALOG CST-STS JAM ERR ALARM-1

HV-STS

I/O

Adjust

Function

Option Test

Level 1 item

Level 2 item

Counter

Figure 4-5

• To select a Level 1 item, press an item at the top of the screen.

• To select a Level 2 item, press a highlighted item.

4-4

Page 73

c. Level 3 Screen

FL-OFST

<LAMP>

<1/1> <READY>

xxxxx

< (yyyyy) {aaaaa ~ bbbbb}

A press on an item highlights the notation.

xxxxx: value before change yyyyy: input value aaaaa-bbbbb: value input range

+/-

Display

Adjust

Function

Option Test

Counter

I/O

Level 1 items

Level 2 item

CHAPTER 4 SERVICE MODE

Number of pages ; e.g., 1/3

Display

DC-CON IP PANEL ANAPRO POWER

I/O

To previous page

Adjust

Function

< 1/3 > < READY >

Status READY JAM Paper jam SERVICE Service operation WAITING Initial rotation, etc. DOORDoor open COPYING Copying ERROR Service error

Reverse + and -

To next page

Figure 4-6

Option Test

Ready for servicing/copying

+/-

Counter

To store

Figure 4-7

• A level 3 item may be selected by pressing it, and the selection is indicated by highlighting the item.

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CHAPTER 4 SERVICE MODE

d. Selecting a Screen

User screen

( )(2,8)( )

Level 1/2 screen

Reset key

Initial screen

Select an item

Select a Level 1 item at the top; then, select a Level 2 item.

Level 3 screen Level 3 screen

To previous /next screen

Reset key

From Level 1/2 screen

To previous /next screen

Level 3 screen

To previous /next screen

e. Guide to Keys

1. Keypad Use it to enter a numeral (0 through 9).

2. User Mode Key Use it to start user mode.

3. Reset Key Use it to end service mode.

4. Stop Key Use it to stop ongoing operation.

5. Clear Key Use it to initialize settings in service mode or software counter readings.

6. Copy Start Key Use it to make copies without ending service mode after making adjustments.

7. Previous Page Key Use it to return to the previous page.

8. Next Page Key Use it to move to the next page.

9. +/- Key USe it to switch between + and -.

10. OK Key Use it to store an input value.

Figure 4-8

4-6

Page 75

B. DISPLAY Control Display Mode

Figure 4-9 shows the DISPLAY mode Level 2 screen and its items.

CHAPTER 4 SERVICE MODE

Display

VERSION USER ACC-STS ANALOG CST-STS JAM ERR

HV-STS

I/O

Adjust

ALARM-1

Function

Option Test

Figure 4-9 DISPLAY Level 2 Screen

Counter

4-7

Page 76

CHAPTER 4 SERVICE MODE

Level 1 DISPLAY

Level 2 VERSION

USER

ACC-STS

ANALOG

CST-STS

JAM ERR HV-STS

ALARM1

Level 3 DC-CON

IP PANEL POWER FEEDER SORTER PS-PCL LIPS SCSI SDL-STCH LANGUAGE COUNTER FEEDER SORTER DECK CARD PCB RAM TEMP HUM ABS-HUM DR-TEMP

FIX-C

WIDTH-C1

WIDTH-C2

WIDTH-C3

WIDTH-C4

WIDTH-C5

WIDTH-C6

WIDTH-MF

WIDTH-DK

PRIMARY BIAS TR-V DF SORTER

DISPLAY Items Outline Indicates the DIMM version of the DC controller PCB.

Indicates the DIMM version of the image processor PCB. Indicates the ROM version of the control panel controller PCB. Indicates the ROM version of the composite power supply PCB. Indicates the ROM version of the feeder controller PCB. Indicates the ROM version of the sorter controller PCB. Indicates the version of the ROM of the PS-PCL board. Indicates the ROM version of the LIPS board. Indicates the version of the ROM on the SCSI Board. Indicates the version of the ROM of the saddle. Indicates the ROM version of the LIPS board. Indicates the selected language. Indicates the counter control type for the copy counter. Indicates the connection of a feeder. Indicates the connection of the sorter. Indicates the connection of the paper deck. Indicates the connection of the control card. Indicates the connection of various boards (accessories*). Indicates the total size of the RAM recognized by the machine. Indicates the machine internal temperature (environment sensor). Indicates the machine internal humidity (environment sensor). Indicates the absolute humidity. Indicates the drum ambient temperature (drum ambient

temperature sensor). Indicates the temperature of the upper fixing roller (main

thermistor). Indicates the width of the paper in the cassette 1 and the output of

the paper size sensor. Indicates the width of the paper in the cassette 2 and the output of

the paper size sensor. Indicates the width of the paper in the cassette 3 and the output of

the paper size sensor. Indicates the width of the paper in the cassette 4 and the output of

the paper size sensor. Indicates the width of the paper in the cassette 5 and the output of

the paper size sensor. Indicates the width of the paper in the cassette 6 and the output of

the paper size sensor. Indicates the width of paper in the multifeeder and the output of

the paper size sensor. Indicates the width of paper in the deck and the output of the

paper size sensor. Indicates the jam history. Indicates the error history. Indicates the current value (A) of the primary charging roller. Indicates the developing bias DC value (V). Indicates the ATVAC value. Indicates the most recent alarm of the feeder. Indicates the most recent alarm of the sorter.

* Varies depending on the country.

4-8

Page 77

CHAPTER 4 SERVICE MODE

<VERSION> DISPLAY Indicates the ROM version of the machine and the accessories PCBs.

Level 3 DC-CON IP PANEL

POWER

FEEDER SORTER SDL-STCH

LIPS

DIMM version f the DC controller PCB DIMM version of the image processor PCB ROM version of the control panel controller

PCB ROM version of the composite power supply

PCB ROM version of the feeder controller PCB ROM version of the sorter controller PCB ROM version of the saddle stitcher controller

PCB ROM version of the LIPS board

Description

<USR> Indicates the items related to the User screen and the user.

Level 3 LANGUAGE

COUTER

Notation: <LANGUAGE AA.BB.CC.DD> Indicates the selected language. AA: country code (not used in the machine) BB: language code CC: site code (See Table 14-803-1.) DD: Paper configuration code (Table 14-802)

Notation: <COUNTER EE> Indicates the type of copy counter count control. EE: Counter code detail (Table 13-803)

Remarks

Notation: xx, yy xx: version number yy: R&D control number

RemarksDescription

Paper Configuration Code: DD

Code

00 01 02 03

Configuration AB Inch A AB/Inch

Table 4-2

Site Code: CC

Code

00 01

Model Common model Canon model

Table 4-3-1

Type Code: EE

Code

00 01 10 11

Total Total Copy total All sizes

Counter 1

Counter 2

Pint total

Table 4-3

Counter 3

Fax print Fax print

4-9

Page 78

CHAPTER 4 SERVICE MODE

<ACC-STS> DISPLAY Indicates accessory connection.

Level 3 FEEDER SORTER

DECK

CARD

PCB

RAM

Description Feeder connection Sorter connection

Paper deck connection (if the paper deck is required or not)

Control card connection (if a control card is required)

Accessory board connection Indicates the number of the board recognized by the copier.

Indicates the size of the RAM recognized by the machine. If standard, 32 MB; with 1 addition, 64 MB; with 2 additions, 96 MB. Note: that any first addition must be installed

to J723.

Remarks

0: not connected. 1: connected.

0: disable operation.

The cable of the paper deck is connected to the copier, but the deck is not recognized by the copier.

1: enable operation.

The paper deck is fully recognized by the copier; or, no paper deck is installed to the copier as an accessory.

0: disable operation. (The control

card function is effective, but no card is set.)

1: enable operation. (A control

card is set; or, the control card function is not effective.)

1: Network board 2: not used. 3: Standard board 3: Standard memory (always 1) 4: Printer 5: SCSI board 6: G3FAX board 7: G3FAX (expansion) board

<ANALOG> Indicates the analog sensor readings.

Level 3 TEMP HUM ABS-HUM

DR-TEMP FIX-C

Machine internal temperature (environment sensor) Machine relative humidity (environment sensor) Machine absolute humidity (environment sensor)

Indicates in terms of g of water in 100 m3 of air. Photosensitive drum ambient temperature Upper fixing roller temperature (°C)

Indicates the temperature detected by the main thermistor (TH1). Normally, controlled to 195°C.

Description

4-10

Remarks °C % RH g

°C °C

Page 79

<CST-STS> Indicates the use of cassettes and multifeeder.

CHAPTER 4 SERVICE MODE

Level 3

WIDTH-C1

WIDTH-C2

WIDTH-C3

WIDTH-C4

WIDTH-C5

WIDTH-C6

WIDTH-MF

WIDTH-DK

Description

Indicates the width (mm) of paper in the cassette 1 and paper size.

Indicates the width (mm) of paper in the multifeeder and paper size.

Indicates the width (mm) of paper in the deck and paper size.

Remarks

Indicates paper widths in whole numbers, omitting decimal places.

4-11

Page 80

CHAPTER 4 SERVICE MODE

<JAM> Indicates jam data.

Level 3 AA BBBB CCCC DDDD E

FFff

G HHHHHH IIIII

Display

< JAM >

AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII AA BBBB CCCC DDDD E FFFF G HHHHHH IIIII

I/O

Adjust

Function < 1/7 > < READY >

Option Test

+/-

Figure 4-10

Description Order of jam (larger, the less recent) Day of occurrence Time of occurrence Time of recovery Location: 0 for copier, 1 for feeder, 2 for

sorter. Jam code

First 2 digits (FF): type of jam (Table 4-4) Last 2 digits (ff): sensor detecting the jam (Table 4-5)

Pick-up position (Table 4-5-1) Pick-up holder software counter reading Paper size

Counter

Remarks 1 to 50 (50 max.) Moth, day; 2 digits each 24-hour notation 24-hour notation

4-12

Page 81

CHAPTER 4 SERVICE MODE

Jam Type

Code 01xx 02xx 03xx 04xx 10xx 11xx 12xx

See Table 4-5-2.

Delay jam Stationary jam Timing jam Protection jam Residual jam at power-on Do open during copying Double feeding

Table 4-4

G. Pick-Up Position

Code

1 2 3 4 5 6 7 8 9

Cassette 1 Cassette 2 Cassette 3 Cassette 4 Cassette 5 Cassette 6 Paper deck Multifeeder Duplexing assembly

Type

Source

Sensor

Code

xx01 xx02 xx03 xx04 xx05 xx06 xx07 xx08 xx09

xx0A

xx0B

xx31 xx32 xx33 xx34 xx35 xx36 xx37

xx38

xx39

xx3A

xx61 xx62

Sensor Pre-registration sensor Vertical path 1 sensor Vertical path 2 sensor Cassette 1 pick-up sensor Cassette 2 pick-up sensor Cassette 3 pick-up sensor Cassette 4 pick-up sensor Cassette 5 pick-up sensor Cassette 6 pick-up sensor Deck pick-up sensor Pre-registration paper sensor for

multifeeder Internal delivery sensor Bin 1 delivery sensor Bin 2 delivery sensor Bin 3 delivery sensor Bin 3 inlet sensor Fixing assembly outlet sensor Bin 1 delivery sensor via reversal

delivery Bin 2 delivery sensor via reversal

delivery Bin 3 delivery sensor via reversal

delivery Bin 3 inlet sensor via reversal

delivery Duplexing assembly inlet sensor Re-pick, up sensor

Logic Jams

9004

9005

9006

Table 4-5-1

Description

The communication between the IP-CPU and the DC-CPU is faulty.

The communication between the finisher and the image processor PCB is faulty.

An excess volume of paper is placed in the Finisher-E1 at the start of copying or printing.

Table 4-5-2

Table 4-5

Correction

Remove the paper. Open and close the front cover.

Remove the paper from the delivery tray.

4-13

Page 82

CHAPTER 4 SERVICE MODE

n Jam Detection by the DADF DISPLAY

S14

S1 ...... Original tray paper sensor

S3 ...... Registration paper sensor

S4 ...... Upper cover sensor

S6 ...... Delivery sensor 1

S7 ...... Pick-up sensor

S8 ...... Reverse sensor

Figure 4-10-1

MS1

MS2

S12

S12 .... Delivery sensor 2

S14 .... Recirculating sensor

MS1 .. RF switch MS2 .. Upper cover switch

Jam type

Original out

Pick-up delay

Pick-up

Registration delay

Sensor

S1, S7

S3, S7

Description

After the pick-up motor M1 has turned on, the sensor S7 does not detect the leading edge of an original and, in addition, the sensor S1 does not detect an original.

After the pick-up motor M1 has turned on, the sensor S7 does not detect the leading edge of an original in 1500 msec.

After the sensor S7 has detected the leading edge of an original, the sensor S3 does not detect the leading edge of an original in 350 msec.

Table 4-5-2

Code 0001

0002

0003

4-14

Page 83

CHAPTER 4 SERVICE MODE

DISPLAY

Jam type

Double feeding

Original

Pick-up

leading edge retreat

Reversal delay 1

Reversal stationary

Reversal delay 2

Reversal

Reversal initial paper

Reversal pickup delay

Reversal pickup stationary

Delivery delay

Delivery stationary

DADF open Upper cover

open Original

re-circulating

Delivery

Jam original

Residual original

Re-circulating bar idle swing (2nd original and later)

Sensor

MS1 MS2

S4 S1

S6, S3 S8, S7

S14

Description

When the 1st original is set on the copyboard glass, the sensor S3 detects an original.

When starting original pick-up, the sensor S3 does not detect the leading edge of an original.

When reversing or delivering an original, the sensor S8 does not detect the leading edge of an original 140 mm or 225 msec after the belt motor M3 has started to rotate clockwise.

When reversing or delivering an original, the sensor S8 does not detect the leading edge of an original after a reversal delay has been checked.

When delivering or picking up an original, the original (to be delivered) is moved back to the copyboard glass together with the original being picked up, causing the sensor S8 to fail to detect the preceding original 50 mm after the belt motor starts to rotate counterclockwise.

When reversing an original, the sensor S8 detects an original.

When reversing an original, the sensor S3 does not detect the leading edge of the reversed original in 100 mm or 300 msec after the sensor S8 has detected the original.

After the sensor S8 has turned on and a feed length of 'original size + 180 mm', the sensor S3 does not detect the trailing edge of the reversed original.

When delivering an original, the sensor S6 does not detect an original in 100 mm or 250 msec after the sensor S8 has detected the leading edge of an original.

After a check for reversal stationary, the sensor S6 does not detect the trailing edge of an original in 100 mm or 250 msec.

The DADF is opened while it is in operation. The upper cover is opened while the DADF is in

operation. The sensor S1 does not detect the original delivered to the

original tray. At the start of original pick-up, the sensor S6, S3, or S8

(or S7 if the paper stopper is up) detects an original. When picking up the 1st original, an original is detected

on the copyboard glass. For the 2nd and subsequent originals, the re-circulating

lever rotated without coming into contact with an original.

Code 0006

0008

0011

0012

0013

0020

0032

0023

0041

0042

0081 0082

0083

0084

0088

0089

Table 4-5-3

4-15

Page 84

CHAPTER 4 SERVICE MODE

DISPLAY

Jam type

Delivery failure

DADF open

Upper cover open

Re-circulating lever idle swing

Sensor

S3, S6

MS1

MS2, S4

S13

Description

When delivering an original in lower separation pick-up mode, the original on the pick-up side is not stopped (e.g., the original being picked up is longer than the original being delivered).

The DADF is opened while the copier is at reset because of the absence of copy paper.

The upper cover is opened while the copier is at rest because of the absence of copy paper.

The re-circulating lever moved off existing originals during original pick-up.

Code 008A

0091

0092

0093

4-16

Page 85

<ERR> Indicates error codes/alarm codes.

CHAPTER 4 SERVICE MODE

Level 3 AA BBBB CCCC DDDD EEEE FFFF

Display

AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G AA BBBB CCCC DDDD EEEE FFFF G

I/O

< ERR >

Adjust

Function < 1/3 > < READY >

Option Test

+/-

Figure 4-11

Description Error number (larger, less recent) Date of occurrence Time of occurrence Time of recovery Error code (Exxx) Detail code

E01, E004, E805 has detail code. Location: 0 for copier, 2 for feeder, 2 for

sorter/finisher.

Counter

Remarks 1 to 20 (20 max.) Month, day 24-hour notation 24-hour notation

For descriptions of each error code, see Chapter 5.

4-17

Page 86

CHAPTER 4 SERVICE MODE

<ALARM1> Indicates the most recent alarms for the sorter and the feeder.

Level 3

SORTER

RemarksDescription

Indicates the most recent alarm for the feeder. I no alarm, indicates '00'. For the DADF alarms, see the following pages.

Indicates the most recent alarm for the finisher/saddle finisher. SORTER: aa bb cc dd aa: stapler alarm for the finisher bb: stapler alarm of the saddle finisher cc: stack alarm dd: tray alarm

4-18

Page 87

CHAPTER 4 SERVICE MODE

n DADF Alarms DISPLAY

Re-circulating lever

S14

Paper stopper

S1 ...... Original tray paper sensor

S3 ...... Registration paper sensor

Figure 4-11-1

S7 ...... Pick-up sensor

S14 .... Re-circulating sensor

4-19

Page 88

CHAPTER 4 SERVICE MODE

Original

placement

Re-circulating lever idle swing

Pick-up fault

Paper stopper overriding

Number of originals

Sensor

Description

Immediately after the re-circulating lever motor M4 has operated, the re-circulating lever swung idly without coming into contact with an original.

At time of pick-up, the sensor S7 does not detect the leading edge of an original in 1500 ms.

When being placed, the original has overridden the paper stopper.

After jam removal, the number of originals set on the original tray has changed; see Note:

number of originals copied

number of originals

on the tray

RDF operation

The on-going operation stops immediately upon detection.

The separation belt, feeding roller, and pickup roller stop immediately. The DADF stops after discharging the copy of the preceding original.

The ongoing operation stops immediately upon detection.

Code

Number of originals

Original out

Original size

Original size, Mixed sizes (in reduce image composition)

Note: To reset, remove the originals form the original tray, and open the DADF.

S14

The re-circulating lever does not fall on the original tray for some reason, not enabling detection of the last original.

Reference: Normally, as many as 50 sheets of A5, STMT, A4, B5, or LTR may be placed; or, 25 sheets of A3, B4, 279x432-mm (11"x17"), or LGL.

The re-circulating lever has fallen to the original tray while an original is being processed.

The size of the original which has been picked up is not of a default size.

[1]The original which has been picked up is

of a size not supported by reduce image composition mode.

[2]The original which has been picked up is

of a size different from the first original.

As many as 100 sheets are counted, and the operation stops.

Stops immediately upon detection.

Table 4-5-4

4-20

Page 89

<HV-STS> Indicates the measurements of voltage and current.

CHAPTER 4 SERVICE MODE

Level 3 PRIMARY BIAS TR-V

Description Current applied to the primary charging roller. Developing bias Dc value ATVC detection voltage

If the level of 'TR-V' is 30 to 100, transfer is assumed to be normal.

Remarks Unit: µA; about 200 µA Unit: V Unit: V

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CHAPTER 4 SERVICE MODE

C. I/O Operation Check Mode

Figure 4-12 shows the Level 2 screen and its items.

Display

DC-CON

IP FEEDER

FEEDER

SORTER

I/O

Adjust

Function

Option Test

Figure 4-12 I/O Level 2 Screen

I/O DC-CON P001 to P027

IP P001 to P011 FEEDER P001 to P010 SORTER P001 to P024

Counter

4-22

Page 91

CHAPTER 4 SERVICE MODE

1. DC-CON DC-CON

Address

P001

P002

bit bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8 bit9

bit10 bit11 bit12 bit13 bit14 bit15

bit0 bit1 bit2 bit3 bit4

bit5

bit6

bit7

bit8 bit9

bit10 bit11 bit12 bit13 bit14 bit15

Display duplexing reversal motor A duplexing reversal motor A* duplexing reversal motor B duplexing reversal motor B* lower feeder motor A lower feeder motor A* lower feeder motor B lower feeder motor B* 3-bin motor A 3-bin motor A* 3-bin motor B 3-bin motor B*

pick-up motor 12A pick-up motor 12A* pick-up motor 12B pick-up motor 12B* horizontal registration motor

phase A horizontal registration motor

phase A* horizontal registration motor

phase B horizontal registration motor

phase B* delivery motor phase A delivery motor phase A* delivery motor phase B delivery motor phase B* delivery reversal motor A delivery reversal motor A* delivery reversal motor B delivery reversal motor B*

Signal M10A M10A* M10B M10B* M6A M6A* M6B M6B 3BMA 3BMA* 3BMB 3BMB*

M5_A M5_B M5_M0 M5_M1 SIDE_A

SIDE_A*

SIDE_B

SIDE_B*

M8_A M8_A* M8_B M8_B* M7_A M7_A* M7_B M7_B*

Connector J114-A12 J114-A11 J114-A14 J114-A13 J114-B8 J114-B7 J114-B10 J114-B9 J110-12 J110-11 J110-13 J110-14

J108-A6 J108-A7 J108-A8 J108-A9 J102-A3

J102-A4

J102-A5

J102-A6

J106-8 J106-9 J106-12 J106-13 J107-11 J107-10 J107-13 J107-12

Action

4-23

Page 92

CHAPTER 4 SERVICE MODE

DC-CON

Address

P003

P004

bit bit0 bit1

bit2 bit3 bit4 bit5 bit6 bit7 bit8 bit9

bit10 bit11 bit12

bit13 bit14 bit15

bit0

bit1

bit2

bit3

bit4 bit5

bit6 bit7 bit8

bit9

bit10

bit11 bit12 bit13 bit14 bit15

Display main motor clock detection laser scanner motor clock

detection fixing motor lock detection toner sensor waste toner sensor

left door open/closed sensor copyboard cover open/closed

sensor right door open/closed sensor front door open/closed sensor 24 VR detection cassette 1 pick-up sensor

cassette 2 pick-up sensor

No. 2 registration sensor

registration sensor

1-bin delivery sensor

2-bin delivery sensor 3-bin delivery sensor reversal delivery sensor

fixing assembly outlet sensor

re-pick up sensor

horizontal registration sensor 3-bin shift tray HP sensor

3-bin inlet sensor duplexing assembly inlet

sensor

Signal M1LCK M4LK

M2LK TS1S PS14S

PS13S PS2S

PS12S FDOOR_PD* (24V) PS18S

PS19S

PS11S

PS4S

PS7S

3BEX2 3BEX3 PS6S

PS40S

PS9S

PS10S 3BMHPS

3BINLT PS8S

Connector J114-A12 J114-A1

J114-A14 J114-A13 J114-B8 J114-B7 J114-B10 J114-B9 J110-12 J110-11 J110-13 J110-14

J108-A6

J108-A7

J108-A8

J108-A9

J102-A3 J102-A4

J102-A5 J102-A6 J106-8

J114-A2

J106-12

J102A-8 J107-11 J107-10 J107-13 J107-12

Action STBY 1, ON 0 STBY 1

STBY 1, ON 0 STBY 1 STBY 1

when open, 0; when closed, 1. when open, 0; when closed, 1.

when open, 0; when closed, 1. when open, 1; when closed, 0. when open, 1; when closed, 0. when paper is present, 1;

absent, 0. when paper is present, 1;

absent, 0.

when paper is present, 1; absent, 0.

When paper is present, 0; absent, 1.

when paper is present, 1; absent, 0.

when paper is present, 0; absent, 1.

when edge is detected, 0.

when paper is present, 0; absent, 1.

4-24

Page 93

CHAPTER 4 SERVICE MODE

DC-CON

Address

P005

P006

bit bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8 bit9

bit10 bit11 bit12 bit13 bit14 bit15

bit0 bit1 bit2 bit3 bit0

bit5

bit6

bit7 bit8 bit9

bit10

bit11

bit12 bit13 bit14 bit15

Display main motor drive pre-exposure lamp drive laser scanner motor drive registration roller clutch vertical path 12 clutch drive developing clutch multifeeder pick-up clutch multifeeder solenoid pick-up 12 solenoid drive primary charging roller solenoid delivery flapper solenoid 3-bin delivery flapper solenoid 3-bin flapper solenoid 3-bin shift motor drive fixing motor drive cleaning belt solenoid scanner motor step switch signal 0 scanner motor step switch signal 1 scanner motor step switch signal 2 scanner motor step switch signal 3 scanner motor current control

signal 0 scanner motor current control

signal 1 scanner motor hold control

signal intensity sensor level setting

fixing assembly inlet guide solenoid (pull: down)

fixing inlet guide solenoid (back: up)

reversing guide cooling fan

Signal M1D* PED M4D CL1D CL3D* CL4D* CL2D* SL3D* SL1D* SL6BK SL2D* SBLSLD 3BSLD* 3BMD_F M2D* SL5D

SL6

SL6BK

FM9D

Connector J102-B11 J112-A1 J104-A2 J102-B4 J108-A4 J102-B8 J102-B2 J102-B6 J108-A5 J104-A7 J106-7 J110-10 J110-9 J110-8 J115-A6 J115-A4

J104-A4

J104-A5

J106-4

Action

when 0, ON.

4-25

Page 94

CHAPTER 4 SERVICE MODE

DC-CON

Address

P007

P008

bit

bit0

bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8

bit9 bit10 bit11 bit12 bit13 bit14 bit15

bit0

bit1

bit2

bit3

bit4

bit5

bit6

bit7

bit8

bit9 bit10

bit11

bit12

bit13

bit14 bit15

Display

multifeeder sensor

3-bin ID

cassette 1 size detection bit 0 cassette 1 size detection bit 1 cassette 1 size detection bit 2 cassette 1 size detection bit 3 cassette 1 size detection bit 4 cassette 2 size detection bit 0 cassette 2 size detection bit 1 cassette 2 size detection bit 2 cassette 2 size detection bit 3 cassette 2 size detection bit 4 cassette 1 paper sensor

cassette 2 paper sensor

cassette 1 paper level detection bit 0

cassette 1 paper level detection bit 1

cassette 2 level detection bit 0 cassette 2 level detection bit 1

Signal

PS3S

CS1B0 CS1B1 CS1B2 CS1B3 CS1B4 CS2B0 CS2B1 CS2B2 CS2B3 CS2B4 UPPD

LWPD

1RPD0

1RPD1

2RPD0 2RPD1

Connector J108-B17

J110-15

J115-B4 J115-B5 J115-B6 J115-B7 J115-B8 J115-B10 J115-B11 J115-B12 J115-B13 J115-B14 J108-A10

J108-A11

J108-A13

J108-A14

J108-A15 J108-A16

Action

when paper is present, 0; absent, 1.

4-26

Page 95

CHAPTER 4 SERVICE MODE

DC-CON

Address

P009

P010

bit bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8 bit9

bit10 bit11 bit12 bit13 bit14 bit15

bit0 bit1 bit2

bit3

bit4 bit5 bit6

bit7 bit8

bit9

bit10

Display primary developing DC developing AC

static eliminator

primary charging mode developing DC mode transfer mode 00 transfer mode 01 transfer mode 02 transfer mode 03 transfer mode 04

relay shut-off drive feeding fan

fixing heat discharge fan 1 (full speed) fixing heat discharge fan 2

fixing heat discharge fan 1 (half speed) fixing heat discharge fan 2

reader cooling fan 1 reader cooling fan 2 scanner motor cooling fan

laser driver cooling fan laser scanner motor cooling fan (full speed) cleaner heat discharge fan

laser scanner fan laser scanner motor cooling fan (half speed) cleaner heat discharge fan

cartridge cooling fan system cooling fan (full speed) DC controller cooling fan

Signal HVPDC* HDCON* HACON*

SEPON*

HVPH* HDCH* HVTM00* HVTM01* HVTM02* HVTM03* HVTM04*

RELAY_D

FM1D

FM2D FM3D

FM12D FM13D FM18D

FM4D FM5D

FM7D

FM4D FM5D

FM7D

FM6D FM8D FM7D

Connector J103-B4 J103-B1 J103-B1

J103-B3

J103-B11 J103-B10 J103-B5 J103-B6 J103-B7 J103-B8 J103-B9

J104-B11 J115-A1

J107-A4 J107-A7

J104-B5 J104-B8 J104-A11

J112-B7 J112-A7

J112-B13

J112-B7 J112-A7

J112-B13

J112-A10 J112-B16 J112-A13

Action

when in error, '0'.

4-27

Page 96

CHAPTER 4 SERVICE MODE

Address

P010

P011

bit

bit11

bit12

bit13 bit14

bit15

bit0

bit1

bit2

bit3

bit4

bit5

bit6

bit7

bit8

bit9

bit10

Display

cartridge coiling fan system cooling fan (half speed) DC controller cooling fan

low-voltage power supply cooling fan 1 low-voltage power supply cooling fan 2

drum cartridge cooling fan 1 drum cartridge cooling fan 2 (full speed) drum cartridge cooling fan 3

drum cartridge cooling fan 1 drum cartridge cooling fan 2 (half speed) drum cartridge cooling fan 3

fan rotation detection (fixing heat discharge fan 1)

fan rotation detection 2 (fixing heat discharge fan 2)

fan rotation detection 3 (laser scanner motor cooling fan)

fan rotation detection 4 (laser diver cooling fan)

fan rotation detection 5 (cleaner heat discharge fan)

fan rotation detection 6 (system cooling fan)

fan rotation detection 7 (DC controller cooling fan)

fan rotation detection 8 (cartridge cooling fan)

fan rotation detection 9 (drum cartridge cooling fan 1)

fan rotation detection 10 (drum cartridge cooling fan 2)

fan rotation detection 11 (drum cartridge cooling fan 3)

Signal

FM6D FM8D FM17D

FM10D FM11D

FM14D FM15D

FM16D

FM14D FM15D

FM16D

FM2LK

FM3LK

FM4LK

FM5LK

FM7LK

FM8LK

FM17LK

FM6LK

FM14LK

FM15LK

FM16LK

Connector J112-A10

J112-B16 J112-A13

J118-1 J118-4

J119-9 J119-5

J119-3

J119-9 J119-5

J119-3

J107-5

J107-8

J112-B8

J112-A8

J112-B14

J112-B17

J112-B11

J112-A11

J119-2

J119-5

J119-8

Action

4-28

Page 97

CHAPTER 4 SERVICE MODE

Address

P011

P012

bit

bit11

bit12

bit13

bit14

bit15

bit0

bit1

bit2 bit3 bit4 bit5 bit6 bit7 bit8

bit9

bit10

bit11 bit12 bit13 bit14 bit15

Display

fan rotation detection 12 (low-voltage power supply cooling fan 1)

fan rotation detection 13 (low-voltage power supply cooling fan 2)

fan rotation detection 14 (reader cooling fan 1)

fan rotation detection 15 (reader cooling fan 2)

fan rotation detection 16 (scanner motor cooling fan)

main heater SSR short circuit detection

sub heater SSR short circuit detection

sub thermistor error detection sub thermistor phase detection counter 1 open circuit detection counter 2 open circuit detection counter 3 open circuit detection

fixing relay shut-off 0 (main thermistor)

fixing relay shut-off 1 (sub thermistor)

fixing relay shut-off 2 (SSR short circuit)

Signal

FM10LK

FM11LK

FM12LK

FM13LK

FM18LK

H1_ERR

H2_ERR

Connector J118-2

J118-3

J104-B6

J104-B9

J104-A9

J114-B11

J114-B14

Action

upon detection, '1'.

when in error, '1'.

4-29

Page 98

CHAPTER 4 SERVICE MODE

2. IP

P001

P002 P003

P004 to P007 P008

P009 to P011

bit 0 bit 1 bit 2 bit 3 bit 4 bits 5 to 7

bit 0, bit 1 bit 2

bit 3

bit 4

bits 5 to 7

bit0 bit1

bit2 bit3 bit4 bit5 bit6 bit7

not used hardware version not used hardware version hardware version not used not used not used Indicates the connection 0: SCSI board not connected

of the SCSI board to the 1: SCSI boar connected fax motherboard.

Indicates the connection 0: FAX board not connected of the AX board to the 1: FAX board connected fax motherboard.

Indicates the connection 0: PDL I/F not connected of the PDL I/F board to 1: PDL I/F board connected the FAX motherboard.

not used not used not used control panel reset 0: reset disabled

1: reset enabled control panel back light 0: OFF 1: ON not used DC controller PCB LED201 0: OFF 1: ON laser bias output 0: ON 1: OFF control card count 0: OFF 1: ON not used not used

Indicates the hardware version of the image processor PCB in respect of combinations of the

states of bits 1, 3, and 4 (P001):

<bit1, bit3, bit4>=<0, 0, 1> System supported

4-30

Page 99

3. FEEDER

CHAPTER 4 SERVICE MODE

Address

P001

P002

P003

P004

bit bit0 bit1

bit2 bit3

bit4 bit5 bit6 bit7 bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7

Display stopper plate solenoid (SL1) drive paper deflecting plate solenoid (SL3)

drive stamp solenoid (SL4) drive belt motor (M3) rotation direction

signal PCB signal PCB signal PCB signal PCB signal reversal sensor (S8) delivery sensor (S8) pick-up sensor (S7) not used PCB signal PCB signal not used not used PCB signal PCB signal PCB signal PCB signal PCB signal recirculatio sensor (S14) PCB signal PCB signal feeder motor clock sensor (S9) belt motor clock sensor (S10) registration roller clock sensor (S11) delivery motor clock sensor (S3) pick-up roller sensor (S5) not used not used not used

Remarks when 1, ON. when 1, ON.

when 1, ON. when right delivery, '1'.

when paper is present, '1'. when paper is present, '1'. when paper is present, '1'.

when paper is present , '1'.

in rotation, repeats '0' an '1'. in rotation, repeats '0' an '1'. in rotation, repeats '0' an '1'. in rotation, repeats '0' an '1'. when at home position, '1'.

4-31

Page 100

CHAPTER 4 SERVICE MODE

Address

P005

P006

P007

P008

bit bit0 bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit0 bit1 bit2

bit3 bit4

bit5 bit6

bit7 bit0

bit1

bit2 bit3 bit4 bit5 bit6 bit7 bit0 bit1 bit2 bit3

bit4 bit5 bit6 bit7

Display PCB signal PCB signal PCB signal PCB signal PCB signal PCB signal not used not used PCB signal PCB signal belt motor (M3) rotation speed signal

belt motor (M3) dive signal feeder motor (M2) rotation speed signal

PCB signal pick-up motor (M1) rotation speed

signal pick-up motor (M1) drive signal delivery motor (m5) rotation speed

signal pick-up motor (M1) rotation direction

signal recirculatio motor (m5) drive signal original indicator LD (LD101, LED102) PCB signal brake (BK) drive clutch (CL) drive paper holding plate solenoid (SL2) PCB signal not used DADF switch (MS1) upper cover switch (MS2), upper cover

sensor (S4) delivery sensor (S12) SW3 on DADF controller PCB SW2 on DADF controller PCB SW1 on DADF controller

Remarks

changes between '0' and '1' according to speed.

when '1', ON. changes between '0' and '1' according to

speed.

changes between '0' and '1' according to speed.

when '1', ON. changes between '0' and '1' according to

speed. in top separation, '1'.

when '1', ON. when '0', ON.

when '1', ON. when '1', ON. when '1', ON.

when DADF is open, '0'. when upper cover is open, '0'.

when paper is present, '1'. when pressed, '1'. when pressed, '1'. when pressed, '1'.

4-32

Canon GP405, Gp-335 Schematics

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

CHAPTER 1 MAINTENANCE AND INSPECTION

A. Scheduled Servicing Table

B. Periodically Replaced Parts

C. Consumables and Durables

D. Image Basic Adjustment Procedure

E. Points of Scheduled Servicing

A. Image Adjustment

B. Exposure System

C. Image Formation System

D. Pick-Up/Feeding System

E. Fixing System

F. Electrical System

CHAPTER 3

A. Clutches and Solenoids

B. Motors

C. Fan

D. Sensors

E. Switches and Counters

F. PCBs

G. Side Paper Deck

I. Upgrading

CHAPTER 4 SERVICE MODE

A. Outline

B. DISPLAY Control Display Mode

C. I/O Operation Check Mode