Canon NP6330 Service Handbook

SERVICE HANDBOOK

REVISION 0

FY8-23AQ-000

MAY 1997

IMPORTANT

THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD.

SPECIFICA TIONS AND OTHER INFORMATION CONTAINED HEREIN MA Y 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.

THIS DOCUMENTATION IS INTENDED FOR ALL SALES AREAS, AND MAY CONTAIN INFORMATION NOT APPLICABLE TO CERTAIN AREAS.

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 DEPT. 1

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV.

CANON INC.

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

CHAPTER 1 MAINTENANCE AND INSPECTION

A. Image Adjustment Basic

Procedure....................................1-1

B. Points to Note for

Scheduled Servicing ....................1-3

CHAPTER 2 STANDARDS AND ADJUSTMENTS

A. Adjusting the Images....................2-1

1. Adjusting the Image Leading Edge

Margin [3] No.305 ...................2-1

2. Adjusting the Leading Edge Non-Image Width

[3] No.306................................2-2

3. Adjusting the Trailing Edge Non-Image width [3] No.307...2-3

4. Adjusting the Left/Right

Registration ............................2-4

5. Adjusting the Image Left/Right Margin [3] No.308...2-6

6. AE Adjustment ........................2-8

7. Adjusting the Developing Bias DC Component [3]

No.302...................................2-12

8. Adjusting the Horizontal Registration Paper Edge

Sensor postion [3] No.324 ....2-13

9. Adjusting the Trailing Edge Margin for Pick-Up from the

Multifeeder [3] No.327...........2-14

10.Adjusting the Book Erasing

Width [3] No.326 ...................2-15

B. Exposure System.......................2-16

1. Routing the Scanner Drive

Cable.....................................2-16

2. Adjusting the Position of the Mirror (optical path length between No.1 mirror and

No.2/No.3 mirror) ..................2-17

3. Adjusting the Tension of

the Scanner Cable ................2-19

Adjusting the Tension of the Lens Drive Belt

.......................2-20

5. Cleaning the No.4 Mirror ......2-20

Cleaning the No.5/No.6 Mirror

.....2-21

Image Formation System

.............2-23

1. Orientation of the Scanning

Lamp .....................................2-23

2. Position of the Blank Shutter

Solenoid ................................2-23

3. Routing the Blank Shutter

Cable.....................................2-24

4. Routing the Charging Wire ..2-25

5. Stringing the Guide Wire ......2-26

6. Adjusting the Height of

the Charging Wire.................2-26

7. Position of the Developing

Assembly Magnetic Seal.......2-27

8. After Replacing the Drum

unit ........................................2-27

D. Pick-Up/Feeding System............2-28

1. Orientation of the Pick-Up

Roller ....................................2-28

2. Orientation of the Separation

Roller ....................................2-28

3. Orientation of the Feeding

Roller.....................................2-28

4. Adjusting the Pressure of the Separation Roller

(cassette/deck)......................2-29

5. Position of the Pick-Up Roller Solenoid (pick-up assembly;

SL1,SL2) ...............................2-30

6. Orientation of the Multifeeder

Pick-Up Roller ......................2-30

7. Position of the Pick-Up Guide Plate Cam

(multifeeder assembly) ..........2-31

8. Routing the Timing Belt

(multifeeder assembly) ..........2-31

9. Adjusting the Pressure of the Separation Pad

(multifeeder assembly) ..........2-32

10.Routing the Drive Belt...........2-32

11.Adjusting the Position of the Horizontal Registration

Solenoid ................................2-33

E. Fixing System.............................2-34

1. Points to Note When Installing

the Fixing Heater...................2-34

2. Adjusting the Nip (tightening the pressure adjusting nut) ..2-35

3. Position of the Fixing

Assembly Paper Guide .........2-36

4. Position of the Cleaning Belt

Solenoid ................................2-36

F. Electrical System........................2-37

1. Registering the Cassette/ Multifeeder Paper Width

Basic Setting [4]....................2-37

2. Adjusting the Original Stop Position with the DF in Use

[3] No.325..............................2-40

3. Checking the

Photointerrupters...................2-41

CHAPTER 3 ARRANGEMENT/FUNCTIONS OF

THE ELECTRICAL PARTS

A. Sensors........................................3-2

B. Switches clutches, and

solenoids......................................3-4

C. Heaters, lamps, and motors.........3-6

D. PCBs............................................3-8

E. Paper deck pedestal-M1............3-10

F. Variable Resistors, Light-

Emitting Diodes, and Check

Pins by PCB...............................3-12

CHAPTER 4 SERVICE MODE

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

B. Using Service Mode.....................4-1

1. Starting Service Mode.............4-2

C. Using Adjustment Mode and

Optional Setting Mode..................4-3

D. Control/Display Mode [1]..............4-4

1. DC Controls PCB..................3-13

2. HVT.......................................3-14

3. Lamp Regulator PCB............3-14

4. Motor driver 1 PCB ...............3-15

5. Motor driver 2 PCB ...............3-15

6. Pedestal controller PCB

(Paper deck pedestal)...........3-16

E. I/O Display Mode [2] ..................4-19

F. Adjustment Mode [3]..................4-43

G. Function Mode [4] ......................4-45

H. Optional Settings [5]...................4-47

I. Counter Mode [6] .......................4-49

CHAPTER 5 SELF DIAGNOSIS

A. Copier...........................................5-1

B. Pedestal Self Diagnosis...............5-5

APPENDIX

A. GENERAL TIMING CHART.........A-1

SIGNALS AND ABBREVIATIONS

C. GENERAL CIRCUIT DIAGRAM ..A-5

(not available in electronic format)

D. PEDESTAL CONTROLLER.........A-7

(not available in electronic format)

....A-2

C. RDF/ADF Self Diagnosis ..............5-6

D. Sorter Self Diagnosis ...................5-7

E. SPECIFICATIONS .......................A-9

1. Copier .....................................A-9

2. Paper Deck Pedestal-M1......A-15

iii

CHAPTER 1 MAINTENANCE AND INSPECTION

A. Image Adjustment Basic Procedure

non-AE, copy density at 5

1-1

Is the density of

gray scale No. 1

too light?

Is there a

difference in density between

front and rear?

Clean the primary charging wire and the static eliminator.

Execute 'U25' in user mode (wire cleaning) to clean the transfer charging wire.

Make a copy.

Is it higher at front

Turn the adjusting screw at the front of the primary corona assembly counterclockwise.

Turn the adjusting screw at the front of the primary corona assembly clockwise.

Decrease the setting of ‘302’ in service mode [3] so that the density of No. 9 decreases (Note 1)

Increase the setting of ‘302’ in service mode [3] so that the density of No. 9 increases (Note 1)

Is the density

of gray scale No. 9

identical to the density of No. 8

through No. 9 of

the chart?

Is the density

of gray scale No. 9 too

high (dark)?

Pre-Check

Checks on Solid Black Density Adjustment on Density Slope

Optimum Density Adjustment

YES

NO NO

YES

Make a copy.

YES

Start

Make a copy.

Adjust the slit according to the slit plate adjustment procedure (next page)

Turn the adjusting screws in the front and at the rear of the primary corona assembly counterclockwise to move the primary corona wire closer to the drum.

Check the height of the corona wires.

Is the setting of ‘U21’

(density correction) in user

mode the middle

value?

Set it to the middle value.

Check to make sure that the settings of ‘301’ and ‘302’ in service mode [3] are as indicated on the service label attached to the front door; otherwise, correct the settings.

non-AE, copy density at 5, 2 to 3 copies (NA-3)

Check the following:

1. difference in density between front and rear

2. density of gray scale No. 9

3. presence/absence of fogging in white background

YES

Note1: A shift is mode in the

control table for the intensity of scanning lamp.

End

Adjusting the Slit Plate

q by loosening the screw r, the change will affect

the area from the center to the rear end.,

Note:

Rear slit plates

(These plates cannot be adjusted.)

If you adjusted the slit w by loosening the screw e, the change will affect the image end (up to a point about 30 mm from the rear).

A 3

Leading edge

A 3

{

30 mm (approx.)

Leading edge

Slit adjustment direction

Image density

Lighter Darker

• Use only the slit plate at the front.

• If you must replace the drum unit, be sure to put the slit plate back to the white marking.

1) Turn off the power switch, and disconnect the power plug from the power outlet.

2) Remove the copyboard glass, and move the No.1 mirror mount to the center, where work is facilitated.

3) Adjust the slit plate at the front by referring to the table below.

If you adjusted the slit

1-2

B. Points to Note for Scheduled Servicing

Copyboard/Scanning system

Part tool/solvent work/remarks Copyboard glass Alchol Cleaning Original size sensor Blower blush Cleaning Scanning lamp Lint-free paper Dry-wiping Reflecting plate Blower blush. No.1 to No.4 mirrors No.5 to No.6 Mirror cleaning Cleaning mirrors tool

Fixing assembly Part tool/solvent work/remarks

Separation claw Solvent Cleaning Upper roller/ Cleaning oil Cleaning Lower roller (TKN-0464) Inlet guide Solvent Cleaning

Pick-up/feeding assembly

Part tool/solvent work/remarks Pick-up Moist cloth* Cleaning roller Transfer guide Feeding belt

Feeding assembly mount

Corona units

Part tool/solvent work/remarks

Optical path

Part tool/solvent work/remarks Lens Brower brush Cleaning Dust-proofing Brower brush Cleaning glass

*Make sure the parts are completely dry.

Primary corona unit Transfer corona unit

Static eliminator

Primary corona unit grid

Alchol lint-free paper

Brush

Blower brush

Dry wipe it, there after, clean it using lint-free paper with alchol

Use a cleaning brush

Cleaning

If dirt cannot be removed, use lint -free paper.

1-3

CHAPTER 2 STANDARDS AND ADJUSTMENTS

A. Adjusting the Images

1 Adjusting the Image Leading Edge Margin [3] No. 305

Select [3] No. 305 (leading edge margin adjustment) in service mode, and make adjustments so that the image leading edge margin is 2.5 ±1.5 mm when the Test Sheet is copied in Direct.

Figure 2-1

Reference:

2nd side of 2-sided copy: 2.5 ±2.0 mm

Making Adjustments

1) Start [3] in service mode, and select No. 305 using the keypad.

• The display indicates ‘305’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) To change the settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection.

The settings and the image positions have the following relationships:

• For each ‘1’ in the setting, the margin width changes about 0.4 mm.

• A higher setting decreases the margin width.

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2-1

2.5 ±1.5 mm

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2 Adjusting the Leading Edge Non-Image Width [3] No. 306

Select [3] No. 306 in service mode (leading edge non-image width adjustment), and make adjustments so that the leading edge non-image width is 2.0 ±1.0 mm when the Test Sheet is copied in Direct.

The copier adjusts the leading edge non-image width in relation to the timing at which the blank shutter is closed.

Be sure to perform the following steps whenever you have replaced the blank shutter solenoid or the blank exposure assembly.

2.0 ±1.0 mm

Figure 2-2

Reference:

6 mm or less in Reduce or Enlarge mode (however, 8 mm or less at 50%)

Making Adjustments

1) Start [3] in service mode, and select No. 306 using the keypad.

• The indicator indicates ‘306’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) To change the settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection.

The settings and the image positions have the following relationships:

• For each ‘1’ in the setting, the margin width changes about 0.4 mm.

• A higher setting increases the margin width.

2-2

CHAPTER 2 STANDARDS AND ADJUSTMENTS

3 Adjusting the Trailing Edge Non-Image Width [3] No. 307

Select [3] No. 307 in service mode (trailing edge non-image width adjustment), and make adjustments so that the trailing edge non-image width is 2.5 ±1.5 mm when the Test Sheet is copied in Direct.

The copier adjusts the trailing edge non-image width in relation to the timing at which the blank shutter is closed.

Be sure to perform the following steps whenever you have replaced the blank shutter solenoid or the blank exposure assembly.

2.5 ±

1.5 mm

Figure 2-3

Reference:

8 mm or less in Reduce or Enlarge mode

Making Adjustments

1) Select [3] in service mode, and select No. 307 using the keypad.

• The indicator indicates ‘307’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Change the setting using the keypad or the Zoom keys.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) To change the settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection.

The settings and the image positions have the following relationships:

• For each ‘1’ in the setting, the margin width changes about 0.4 mm.

• A higher setting decreases the margin width.

2-3

q, and adjust the position of the cassette hook plate w.

Figure 2-5

2-4

CHAPTER 2 STANDARDS AND ADJUSTMENTS

4 Adjusting the Left-Right Registration

Make adjustments so that the edges of the copy image and the copy are 0±1.5 mm

from each other.

(–) (+)

0 ±1.5 mm

0 2

4 6 8

Reference:

2nd side of 2-sided copy: 0 ±2.0 mm

a. Pick-Up from the Cassette

Loosen the screw

Figure 2-4

CHAPTER 2 STANDARDS AND ADJUSTMENTS

b. Pick-Up from the Multifeeder

Loosen the screw q, and adjust the position of the tray.

Figure 2-6

c. Pick-Up from the Paper Deck

Remove the deck front cover, and loosen the screw q (deck left/right); then, adjust the position of the latch assembly in front/rear direction.

Figure 2-7

Figure 2-8

2-5

CHAPTER 2 STANDARDS AND ADJUSTMENTS

5 Adjusting the Image Left-Right Margin [3] No. 308

Select [3] No. 308 in service mode (left/right margin adjustment), and make adjustments so that the image left/right margin is 2.5 ±1.5 mm when the Test Sheet is copied in Direct.

Be sure you have adjusted the left/right registration before performing the following steps.

Reference:

2nd side of 2-sided copies: 2.5 ±2.0 mm

Making Adjustments

a. Margin Width

1) Select [3] in service mode, and select No. 308 using the keypad.

• The indicator indicates ‘308’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the new setting.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

5) To change the settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection.

The settings and the image positions have the following relationships:

• For each ‘1’ in the setting, the margin width changes about 0.37 mm.

• A higher setting increases the margin width.

Shutter

Adjusts the distance between the two shutters

2-6

(+)

(-)

Figure 2-9

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Adjusting screw

Shutter

Shifts the entire shutter

b. Adjusting the Position of the Left/Right Margin

Turn the screw, and make adjustments to suit the standards.

• A clockwise turn moves the margin toward the front.

• A counterclockwise turn moves the margin to the rear.

• A full turn of the screw moves the image by about 1 mm.

Figure 2-10

Figure 2-11

Note:

For both a. and b., be sure to try different reproduction ratios after adjustments so that a blank shutter home position search will be executed.

2-7

∆ as

necessary.

First, execute [4] No. 402 in service mode (AE auto adjustment) for automatic

adjustments.

If the appropriate adjustments cannot be made after several tries (density indicator

LED F5 and F9 flash), or if copies of the Test Sheet made in AE mode are too dark or too light, execute [3] No. 304 in service mode (AE mode scanning lamp activation voltage auto adjustment).

Be sure to follow the numerical sequence of the table.

Table 2-1

• In No. 402, auto adjustment is not executed for the AE slope, and the standard slope is used. To adjust the slope, execute No. 303.

2-8

CHAPTER 2 STANDARDS AND ADJUSTMENTS

No.

1 2 3

Item

402 304 303

After replacing AE sensor

∆ ∆

After replacing controller PCB

∆ ∆

6 AE Adjustments

If you have replaced the scanning lamp, AE sensor, or DC controller PCB, you must

make the adjustments indicated by O; make the adjustments indicated by

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Lighter

Copy

density 5

Darker

Test Chart Original

density

• AE Auto Adjustment [4] No. 402 In AE auto adjustment, adjustments are made so that the intensity of the lamp in AE

mode matches the AE sensor output of manual copy density 5 in reference to copies of an original (Test Sheet) on the copyboard glass.

Making Adjustments

1) Place the Test sheet (NA-3) on the Copyboard, and close the copyboard cover.

2) Start [4] in service mode, and select No. 402 using the keypad.

• The indicator indicates ‘402’.

3) Press the OK key.

• The scanning lamp turns on, and the scanner moves to the AE position.

• AE scanning is executed, and the intensity for AE scanning is automatically set.

• Thereafter , the scanner returns to home position, and the scanning lamp turns of f.

4) Press the Reset key.

• Mode selection mode starts, indicating [4].

• If necessary, execute No. 304.

Item

402

Function

AE scanning intensity automatic adjustment

Description

Table 2-2

Remarks

Automatic adjustment occurs so that the original is copied at copy density 5 when ‘402’ is executed.

Note: If AE adjustment

fails, the density indicator LED on the control panel F5 and F9 flash. If such occurs, make the adjustment once again.

2-9

Lighter

7.5

Copy

density 5

Darker

Test Chart Original

density

CHAPTER 2 STANDARDS AND ADJUSTMENTS

• Scanning Lamp Activation Voltage Auto Adjustment in AE Mode [3] No. 304

Making Adjustment

1) Start [3] in service mode, and select No. 304 using the keypad.

• The indicator indicates ‘304’.

2) Press the OK key.

• The indicator flashes the stored setting.

3) Using the keypad or the Zoom keys, change the settings according to the table below.

• The indicator flashes the setting.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) Press the key.

• Item selection mode starts, indicating ‘304’.

• If necessary, execute No. 303.

Item

304

Function

AE scanning intensity adjustment

Description

Table 2-3

Remarks

q When the setting

is decreased in service mode, the AE copies will be darker.

w If the setting is

increased in service mode, the AE copies will be lighter.

2-10

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Lighter

7.5

Copy

density 5

Darker

Test Chart

Newspaper

Original

density

• Newspaper Original DC Bias Adjustment in AE Mode [3] No. 303 After executing No. 402 and No. 304, make a copy of a newspaper . If the copy is too

dark or too light, make the following adjustments:

Making Adjustments

1) Start [3] in service mode, and select No. 303 using the keypad.

• The indicator indicates ‘303’.

2) Press the OK key.

• The indicator flashes the stored setting.

3) Using the keypad or the Zoom keys, change the setting according to the table below.

• The indicator flashes the setting.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing, and remains on.

• Press the Copy Start key to start copying.

5) Press the Reset key twice.

• These presses end service mode.

Item

303

Function

AE slope

Description

Table 2-4

Remarks

q If the setting is

decreased in service mode, the newspaper copies will be lighter.

w If the setting is

increased in service mode, the newspaper copies will be darker.

2-11

CHAPTER 2 STANDARDS AND ADJUSTMENTS

7 Adjusting the Developing Bias DC Component [3] No. 302

Make adjustments according to the Image Adjustment Basic Procedure.

Making Adjustments

1) Start [3] in service mode, and select No. 302 using the keypad.

• The indicator indicates ‘302’.

2) Press the OK key.

• The indicator flashes the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The setting is stored.

• The indicator stops flashing and remains on.

5) Press the Clear key to start copying. The settings and the developing bias have the following relationships:

• For each ‘1’ of the setting, the output of the developing bias DC component changes by about 5 V.

• A higher setting decreases the developing bias DC component, making the copies darker.

• A lower setting increases the developing bias DC component, making the copies lighter.

2-12

CHAPTER 2 STANDARDS AND ADJUSTMENTS

8 Adjusting the Horizontal Registration Paper Edge Sensor Position [3] No. 324

If a discrepancy is noted between front and rear margins on the second side of a two-

sided copy, make the following adjustments:

Making Adjustments

1) Start [3] in service mode, and select No. 324 using the keypad. The indicator indicates ‘324’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) Press the Reset key twice.

• These presses end service mode. The settings and the margin have the following relationships:

• For each ‘1’, the non-image width changes by about 0.5 mm.

• A higher setting increases the margin at the front.

• A lower setting decreases the margin at the rear.

Note:

After making adjustments, turn off and then on the power switch to move the horizontal paper end sensor to home position.

2-13

CHAPTER 2 STANDARDS AND ADJUSTMENTS

9 Adjusting the Trailing Edge Margin for Pick-Up from the Multifeeder [3] No. 327

Make adjustments so that the trailing edge margin is 2.5 ±1.5 mm when free-size

copying is executed using the multifeeder.

2.5 ±

1.5 mm

Figure 2-12

Making Adjustments

1) Start [3] in service mode, and select No. 327 using keypad.

• The indicator indicates ‘327’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) To change the settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection. The settings and the image position have the following relationship:

• For each ‘1’, the margin width changes about 0.4 mm.

• A higher setting decreases the margin width.

2-14

CHAPTER 2 STANDARDS AND ADJUSTMENTS

10 Adjusting the Book Erasing Width [3] No. 326

Adjust the width that runs in the middle of an original in book erase mode. The Length of χin Figure 2-13 may be changed. This mode does not allow changing the left/right edge of a book original.

Book original

Figure 2-13

Making adjustment

1) Start [3] in service mode, and select No. 326 using the keypad.

• The indicator indicates ‘326’.

2) Press the OK key.

• The indicator indicates the stored setting.

3) Using the keypad or the Zoom keys, change the setting.

• The indicator flashes the setting.

• To enter a negative setting, press the % key.

4) Press the OK key.

• The new setting is stored.

• The indicator stops flashing and remains on.

• A press on the Copy Start key starts copying.

5) To change settings in succession, repeat steps 3) and 4).

6) Press the Clear key to return to item selection. The settings and the book erasing width have the following relationship.

• For each ‘1’, the frame erasing width changes by about 1 mm.

• A higher setting increases the frame erasing width.

2-15

CHAPTER 2 STANDARDS AND ADJUSTMENTS

B. Exposure System

1 Routing the Scanner Drive Cable

Route the cable in the order indicated; then, adjust the tension of the cable and the

position of the mirror.

Note:

Before starting the work, be sure to fix the No. 2 mirror mount temporarily in place to the front and rear side plates.

=0 –

3mm

Figure 2-14

Put the steel ball

Fix in place

temporarily.

into the hole

of the pully.

Wind

eight times.

2-16

CHAPTER 2 STANDARDS AND ADJUSTMENTS

2 Adjusting the Position of the Mirror (optical path length between No. 1

mirror and No. 2/No. 3 mirror)

1) Remove the screw used to temporarily fix the No.2 mirror mount in position (both front, rear).

2) Loosen the four screws on the mirror positioning tool (FY9-3002-000), and extend the two arms fully; then, tighten the screws (both front and rear).

Reference:

The mirror positioning tool is used in common with other models. Adjust the length of the arms to suit the copier in advance.

3) Remove the pin from the mirror positioning tool (front and rear).

4) Mount the mirror positioning tool q to the No.1 mirror mount and the No.2 mirror mount.

(front)

Figure 2-15

(rear)

Figure 2-16

2-17

CHAPTER 2 STANDARDS AND ADJUSTMENTS

(rear)

5) Mount the fixing of the scanner cable to the No.1 mirror mount (both front and rear) with screws w.

Figure 2-17

(front)

Figure 2-18

2-18

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Line drawn with a scribe

Binding screw

r=0 – 3mm

Wire spring

Tensioner plate

3 Adjusting the Tension of the Scanner Cable

Loosen the binding screw, and align the tensioner plate to the line marked with a

scribe in advance.

Or, tighten the binding screw so that the wire spring and the hole in the side plate

shown in Figure 2-19 is 0 to 3 mm when viewed from the front.

Figure 2-19

2-19

CHAPTER 2 STANDARDS AND ADJUSTMENTS

A indicated in Figure 2-20.

Figure 2-20

5 Cleaning the No.4 Mirror

1) Remove the copyboard glass and the lens hood.

2) Remove the screw q and the mirror guide plate w; then, clean the No.4 mirror.

Figure 2-21

4 Adjusting the Tension of the Lens Drive Belt

Move the lens motor support q and fit it in place so that the reading of the spring

gauge is 1000 ± 50g when motor support q is pulled with a spring gauge in the direction of the arrow at the point

2-20

CHAPTER 2 STANDARDS AND ADJUSTMENTS

6 Cleaning the No.5/No.6 Mirror

a. Removing the Mirror Cleaning Tool

1) Remove the copyboard glass.

2) Remove the lens hood.

3) Remove the mirror guide plate.

4) Move the lens stage in enlargement direction.

5) Remove the screw q, and remove the mirror cleaning tool w. Use the tool for cleaning the No.5/No.6 mirror.

Figure 2-22

b. Cleaning the No.5 Mirror

1) Remove the mirror cleaning tool.

2) As shown, put the mirror cleaning tool q against the No.5 mirror, and move the tool in the direction of the arrow to clean. (At this time, take care so that the cleaning tool or your fingers will not touch the No.4 mirror.)

Figure 2-23

2-21

CHAPTER 2 STANDARDS AND ADJUSTMENTS

Side B

Side A

Side C

c. Cleaning the No.6 Mirror

1) Remove the mirror cleaning tool.

2) Open the front door, and remove the developing assembly and the drum unit.

3) Remove the dust-proofing glass.

4) While keeping the mirror cleaning tool q (sides A and B) against the lens mount, move it in the direction of the arrow to clean.

Figure 2-24

d. Installing the Mirror Cleaning Tool

When installing the mirror cleaning tool to the right stay, butt the side C of the tool

against the right stay q and then fix it in place with a screw.

Thereafter, check to make sure that the cleaning tool and the No.1 mirror mount are

not interfering with each other.

Figure 2-25

2-22

+ 110 hidden pages

Canon NP6330 Service Handbook

CONTENTS

A. Adjusting the Images

B. Exposure System