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EPSON Stylus COLOR 800 Service Manual 4-i

Chapter 4

Adjustments

4.1. Requirements for Adjustments ........................... ........................... ............... 4-1

4.1.1. Adjustment Tools ....................................................................... 4-3

4.2. Adjustments ................................................................................................ 4-5

4.2.1. Platen Gap (PG) Adjustment ...................................................... 4-5

4.2.2. Input of the Customer Data Parameter ....................................... 4-9

4.2.3. Ink Charge ................................................................................. 4-11

4.2.4. Write Head Voltage Value ....................................... ................... 4-13

4.2.5. Head Angle Adjustment............... .............. ............... .............. .... 4-16

4.2.6. BK-M Linear Adjustment.... ........................... ........................... ... 4-19

4.2.7. Head Gap Timing Adjustment.......... ........................... ................ 4-22

4.2.8. Bi-d Adjustment........ .................... ..................... ..................... .... 4-26

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4-ii EPSON Stylus COLOR 800 Service Manual

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EPSON Stylus COLOR 800 Service Manual 4-1

4.1 Requirements for Adjustments

This section describes adjustments required when the printer is reassembled after repair. Read

the instructions under the CAUTION heading before starting adjustments.

Always perform the adjustment using the program specified for the unit.

The ink cartridge for this printer is a one-time cartridge. If the same cartridge is reinstalled

after removal, bubbles form in the printhead, which might cause missing dots. Therefore,

always install a new cartridge after removing the used one.

The ink consumption counter is reset when the cartridge is replaced during the ink cartridgechange operation. Therefore, be sure not to replace the ink cartridge without putting the

printer into ink cartridge change mode.

Use 720 dpi exclusive paper when printing the adjustment pattern.

Perform the each adjustment by using exclusive adjustment program.

Be sure to perform the specified adjustments whenever you remove or replace the part during

repair. Table 4-1 lists required adjustments for removed units and the corresponding adjustment

items, which must be done in the order given in Table 4-1.

CAUTION

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Adjustments

4-2 EPSON Stylus COLOR 800 Service Manual

Table 4-1. Required Adjustments

Replaced Unit/Part Adjustment Items and the Corresponding Menus

Printer Mechanism1. Customer data writing operation * Inputs customer data value

2. Initial ink charge Charges ink

3. Head VH voltage input Writes head voltage value4. Head gap adjustment Adjusts head gap timing

5. Bi-d adjustment Adjusts Bi-d alignment

C202 MAIN Board1. Customer data writing operation * Inputs customer data value

2. Head VH voltage input Writes head voltage value

3. Head gap adjustment Adjusts head gap timing


5. Ink drain pad replacement (See Chapter 6, Maintenance.)

CAUTION

When the C202 MAIN board is replaced, all data stored in the EEPROM is

lost. This means the ink consumption counter value is lost. Therefore, after

you replace the C202 MAIN board, you must install a new ink cartridge in the

printer. Perform the adjustments above after replacing the ink cartridge.

Printhead1. Customer data writing operation * Inputs customer data value

2. Initial ink charge Charges ink

3. Head VH voltage adjustment Writes head voltage value

4. Head angle adjustment Adjusts head angle

5. Black/color head vertical adjustment BK-M linear adjustment



After CR unit disassembly

or assembly

1. Platen gap adjustment

2. Customer data writing operation * Inputs customer data value

3. Head angle adjustment Adjusts head angle4. Black/color head vertical adjustment BK-M linear adjustment



Top frame1. Platen gap adjustment

2. Customer data writing operation * Inputs customer data value



CR motor1. Customer data writing operation * Inputs customer data value



Ink drain pad 1. EEPROM reset (See Chapter 6)* The adjustment program does not run unless you first input the parameter for customer data.

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Adjustments


4.1.1 Adjustment Tools

Table 4-2 shows tools necessary to adjust this printer and corresponding menu to be selected.

Table 4-2. Adjustment ToolsTool Adjustment

Program disk for

adjustments:

DOS system

GWBASIC

Adjustment program

(Version J70C00E)

Customer data writing operation

Initial ink charge (ink charge)

Head voltage adjustment

Head angle adjustment

Black/color head vertical adjustment

Head gap adjustment

Bi-d adjustment

Thickness gauge (1.1 mm) Platen gap adjustment

The adjustment program diskette contains a total of 40 files, including MS-DOS, GWBASIC.EXE,and the adjustment program itself. The menus for the adjustment program are shown below:

Select the item in the light gray shaded box to perform the necessary adjustment. You can

proceed to the sub menus through the item in the dark gray shaded box in the bold lines.

Selecting All adjustments in the sub menu lets you perform the following adjustments

consecutively; Head angle adjustment, BK-M linear adjustment, Head gap adjustment, and

Bi-d adjustment. This section describes adjustments individually.

-Input of Customer Data

Adjustment/Print Inspection

Change of Center Value

Input of Comment

Change of Date

Change of Time

End

Select Menu :?_

Ink Charge

Write the Head Voltage Value

All Adjustments

Head Angle Adjustment

BK-M Linear Adjustment

Head Gap Timing Adjustment

Bi-d Adjustment

Print Inspection

Ink Discharge

Customer Data Change/End

Input M/C No. : ?_

Black Voltage Value :

Color Voltage Value :

GOS Paper Print Test

SF Paper Print Test

OQA Print Test

Cleaning

Return to the MENU

Letter Paper Print Test

Select Menu :?_

Select Menu :?_

Main Menu Sub Menu Print Inspection Sub Menus

Figure 4-1. Adjustment Program Menus

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Adjustments


During adjustments, values such as the customer data parameter, head voltage value, head gapadjustment value, and Bi-d adjustment value are written to the EEPROM at specified times, as

follows:

Customer data setting When you press Enter after typing the values

in the Write Head Voltage Value menu.

Head voltage value When you press Enter after typing the values

in the Write Head Voltage Value menu.

Bi-d/ Head gap adjustment value When you press Enter after entering the

adjustment value.

CAUTION

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Adjustments


4.2 Adjustments

This section provides details on how to perform the adjustments listed below, along with

precautions given under CAUTION headings.

Platen gap adjustmentCustomer data writing operation

Initial ink charge

Head voltage data writing operation

Head angle adjustment

BK-M linear adjustment (a vertical adjustment for the black/color heads)

Head gap adjustment

Bi-d adjustment

4.2.1 Platen Gap (PG) Adjustment

This adjustment creates the appropriate gap between the head nozzle surface and the platen.

The adjustment is necessary when the parallelism adjustment bushing has been moved from its

position during disassembly or assembly. The standard value for the platen gap for this printer

is 1.1 mm. Adjust the gap by inserting a thickness gauge between the head nozzle surface and

platen and then turning the both left and right parallelism adjustment bushings. This section

describes how to adjust the PG gap correctly.

Never touch the thickness gauge with your bare hands.

Make sure there is no oil, foreign substance, or rust on the thickness gauge.

Check that the thickness gauge is not warped by aligning it with a flat surface, or use a new

gauge.

1. Set the PG lever to the + (wide) position, and shift the CR to the left. Then insert the

thickness gauge by sliding it from the rear (PF roller side) to the front, avoiding contact with

the PF roller surface.

Be sure to level the thickness gauge when placing it on the diamond cut rib on the platen plate.

CAUTION

CAUTION

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Adjustments


2. Set the PG lever to the 0 (narrow) position, and shift the CR from left to right or vice versa by

holding the upper side of the timing belt.

3. Turn the left parallelism adjustment bushing toward the rear (narrower), one step at a time,

until the left parallelism adjustment bushing reaches the position where the thickness gauge

starts shifting together with the CR. Then turn the bushing one step back from this position.

4. Hold the upper side of the timing belt, and slide it to move the CR from right to left or vice

versa to ensure that the thickness gauge set on the platen does not move.

5. Return the PG lever to the + (wide) position to remove the thickness gauge, and slide the CR

right. Then insert the thickness gauge by sliding it from the rear (PF roller side) to the front,

avoiding contact with the PF roller surface.

Printer Mechanism

Viewed from the Front

Printer Mechanism

Viewed from the Left Side

Black Head

Diamond Rib

Color Head

Platen

PF RollerThickness Gauge Thickness Gauge

Diamond Rib

Figure 4-2. Thickness Gauge Setting

Left Parallelism Adjustment Bushing

Rear (Narrow) Front (Wider)

Push to the Rear Pull Forward

Viewed from the Left Frame Side

Figure 4-3. Left Parallelism Bushing

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Adjustments


6. Set the PG lever to the 0 (narrow) position and shift the CR from left to right or vice versa by

holding the upper side of the timing belt.

7. Turn the right parallelism adjustment bushing toward the rear, one step at a time, until the

right parallelism adjustment bushing reaches the position where the thickness gauge starts

moving together with the CR. Then turn the bushing one step back from that position.

8. Hold the upper side of the timing belt, and slide it to move the CR to ensure that the

thickness gauge set on the platen does not move.

9. Repeat steps 1 to 4 at the left end to confirm the gap is correctly adjusted.

10. After confirming the correct adjustment, fix the left and right parallelism adjustment bushings

with screws (CBS, 3 x 6).

When fastening the screws, be careful not to dislocate the bushings from the adjusted

position.The tightening torque for the screws (CBS, 3 x 6) is 4.5 kg ~ 5.5 kg-cm.

After performing the PG gap adjustment, make sure the cleaner head and head nose are in

contact with each other properly by following the instructions below.

11. Set the PG lever to the + (wide) position.

Viewed from the Right Frame Side

Right Parallelism Adjustment Bushing

Rear (Narrow)

Push to the RearPull Forward

Front (Wider)

Figure 4-4. Right Parallelism Bushing

CAUTION

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Adjustments


12. Release the CR lock lever by turning it forward, using tweezers, and shift the CR unit from

the CR home position to the right end of the front paper guide. Then, set the head cleaner to

the wiping/rubbing position by turning the larger gear for the pump motor reduction gear in

the counterclockwise direction (toward the front).

Make sure the change cam is set to the pump drive side during this operation. (See Figure

2-11 and Figure 3-65 for the cam position.)

Stop turning the pump reduction gear shaft when you feel any resistance while turning the

gear.

13. Slide the CR from left to right or vice versa by holding the upper side of the timing belt (or top

edge of the CR unit). Then, check that the head cleaner and color head nose (metallic frame

part of the head) come in contact with each other by 5 mm or more.

When sliding the head cleaner to the metallic frame of the head, be careful not to slide intothe head surface beyond the metal frame.

View the cleaner head from the front left of the printer to check whether the contact portion

of the color head and head cleaner is appropriate.

CAUTION

Carriage

Head Cleaner

Head Nose Contact Area :0.5 mm or more

Figure 4-5. Contact Area of the Color Head and Head Cleaner

CAUTION

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Adjustments


14. After you have the proper contact, turn the large gear in the pump reduction gears

counterclockwise to position the cleaner head under the sub cable holder securely. If the

position is not correct, check positions of the head cleaner and pump unit, and reinstall parts

if necessary.

15. Return the CR to the home position manually and set the PG lever back to the 0 (narrow)

position.

4.2.2 Input of the Customer Data Parameter

This operation is required when you replace the C202 MAIN board. The program for this

adjustment writes the customer data value to the EEPROM on the C202 MAIN board. If this

program is not performed properly, reading of CG data may fail in and various utilities for the

bidirectional interface may not be installed. The adjustment procedure is described below.

Writing of the customer data value is to be performed ahead of other adjustments.

Therefore, you cannot proceed to any other adjustments without doing this adjustment first.

The value is written to EEPROM when you press ENTER after entering the head voltage

value in the Write the Head Voltage Value operation.

1. Insert the program diskette into the diskette drive in the PC, and turn the PC on.

2. The program automatically starts, and the following menu appears on the screen.

3. Enter 1 for Select menu :? to select Input Customer Data from the menu.

Input Customer dataAdjustment/Print inspectionChanging of center valueInput of commentChange of dateChange of timeEND

Select Menu ?_

...................................

........................................

..........................

..........................

1234569

Stylus COLOR 800 J70C00ECustomer : Standard Customer DATA 12-03-1996

Figure 4-6. Main Menu

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Adjustments


4. Press ENTER, and the menu below appears.

5. Type the four-digit number (nnnn) for Memory-SW data (4 col data) and press ENTER.

nnnn represents a customer data value, defined by the area, as shown below:

0000: EAI, EAI (Latin America)

0101: EDG (NLSP) EDG (NLSP)

0001: Standard Europe (EDG, EFS, EIS, EIB, EUL)

6. Type 2 to select Adjustment/Print Inspection from the menu and perform the Write Head

Voltage Value operation. The value selected for Input Customer Data is written to the

EEPROM on the C202 MAIN board when you press ENTER after writing the head voltage

value.

Input Customer data

Adjustment/Print inspectionChanging of center valueInput of commentChange of dateChange of timeEND

Select Menu : 1

Input the customer data

Memory-SW data (4col data) : ?

.....................

......................................................

..........................

..........................

12

34569

Stylus COLOR 800 J70C00ECustomer : Standard Customer DATA < **** > 12-03-1996

Figure 4-7. Input of Customer Data

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4.2.3 Ink Charge

Perform this operation after installing a new printhead or printer mechanism in which new

printheads are installed. ASP printheads or printheads in the printer mechanism have shipping

fluid in the cavity, and this operation is ejects that fluid and replaces it with ink. Therefore, be sureto perform initial ink charge when you replace a printhead, since not performing the operation

may cause missing dots. Procedures and notes for the operation are given below.

Avoid unnecessary initial ink charge operations, because they consume a considerable

amount of ink (about one fifth of the ink cartridge capacity).

Do not turn the printer off before this program is completed. Otherwise, enough ink does not

fill the printhead cavity. If there is a power outage before the operation is completed, repeatthe procedure using this adjustment program.

This initial charge program is different from the initial ink charge carried out automatically

when the printer is powered on for the first time. However, the program uses almost the

same amount of ink as the initial ink charge.

1. Insert this program diskette into the diskette drive in the PC, and turn the PC on.

2. The program automatically starts up, and the following menu appears on the screen.

3. Enter 1 for Select menu : ? to select Input Customer Data from the menu.

CAUTION


Select Menu ?_

...................................

........................................

..........................

..........................

1

2

3

4

5

6

9

Stylus COLOR 800 J70C00E

Customer : Standard Customer DATA 12-03-1996


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5. Enter nnnn for Memory-SW data (4 col data), and press ENTER.

nnnn represents customer data, which varies by area, as shown below:

0000: EAI, EAI (Latin)

0101: EDG (NLSP) EDG (NLSP)


6. Enter 2 for Select menu : ? to select Adjustment/Print Inspection from the menu.

7. Press ENTER, and the sub menu below appears.

Input Customer dataAdjustment/Print inspection

Changing of center valueInput of commentChange of dateChange of timeEND

Select Menu : 1



...................................

............................................................................................

12

34569


Figure 4-9. Input of Customer Data

..............................................................................

....................

Ink charge

All adjustment

Select Menu ?_

BI-D (center value 0,0)Gap Timming (center value 0,0)

.............

0123456789

Stylus COLOR 800 J70C00ECustomer : Standard Customer Data 12-03-1996

.................................

..............................Write to the Head voltage value

Head angular adjustmentBK.-M Linear adjustmentHead GAP timming adjustmentBi-d adjustmentPrint inspectionInk dischargeCustomer data change/End

Figure 4-10. Adjustment/Inspection Sub Menu

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8. Enter 0 for Select menu : ? to select Ink charge from the menu.

9. Press ENTER. The computer screen returns to the sub menu, and the initial ink charge

sequence starts. The Power LED on the control panel blinks during this operation.

10. If you do not want to proceed to another adjustment, enter 9 for Select menu : ? to select

Customer data change/End from the current menu, and the menu returns to the main menu.

11. Enter 9 for Select menu : ?. Thenpress ENTER to exit the program.

4.2.4 Write Head Voltage Value

This adjustment is required after installation of an ASP C202 MAIN board, ASP printhead, or ASP

printer mechanism in which new printheads are already installed. This operation adjusts the driver

pulse, which differs from printhead to printhead, depending on tolerances in the manufacture of

the piezoelectric elements. This program allows you to write the individual head voltage value to

the EEPROM on the C202 MAIN board. Failure to perform this adjustment will result in inferiorprinting. The procedure for this operation is described below.

Note the 5-digit-head voltage value marked on the left side of the printhead before installing

the new printhead.

An ASP printer mechanism is equipped with printheads. Do not forget to note the head

voltage value for the printheads, stamped on a label on the printer mechanism package.

The value is written to the EEPROM after you press ENTER after entering the values.

1. Insert the program diskette into the diskette drive in your PC, and turn the PC on.


Input Customer dataAdjustment/Print inspectionChanging of center value

Input of commentChange of dateChange of timeEND

Select Menu ?_

...................................

................

............................................................................

1

2

3

4

5

6

9



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Adjustments


8. Enter 1 for Select menu : ? to select Write Head Voltage Value from the menu.

9. Press ENTER, and the following menu appears.

10. Make sure you have the correct head voltage values. Then type in each 5-digit value. Check

that the values input are correct by looking at the confirmation menu. If correct, press

ENTER. If incorrect, press SPACE, and correct the value.

11. After you have input the correct values, you save the head voltage values to the EEPROM on

the C202 MAIN board by pressing ENTER. Then the sub menu appears.

12. If there are no more adjustments to be performed, enter 9 for Select menu : ? to select

Customer Data Change/End from the sub menu. Then press ENTER, and the menu returns

to the main menu.

13. Enter 9 for Select menu : ?. Then press ENTER to exit the program.

>Black Head voltage

Black voltage value (5chr. ID data (ex.18A09)) :

----Voltate value----------------------Black voltate value :Color voltage value:

Figure 4-14. Write Head Voltage Value

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Adjustments


4.2.5 Head Angle Adjustment

Perform this adjustment when you replace the printhead or disassemble or assemble the CR unit

to adjust printheads to the proper angle to level. You make this adjustment by physically moving

the head angle adjust lever attached to the front of the CR unit. You can identify and adjust theslant based on the result of the test pattern output by the adjustment program. Therefore, no

value is written to EEPROM. The adjustment procedure is as follows:

Be sure to loosen the head fixing screws before performing this adjustment.

1. Insert the program diskette into the diskette drive in your PC, and turn the PC on.

2. The program automatically starts up, and the following menu appears on the screen:

CAUTION

Input Customer dataAdjustment/Print inspectionChanging of center valueInput of commentChange of date

Change of timeEND

Select Menu ?_

...................................

........................................

..........................

..........................

1

2

3

4

5

6

9



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3. Enter 1 for Select menu : ? to select Input Customer Data from the menu.


5. Enter nnnn for Memory-SW data (4 col data), and press ENTER

nnnn represents the customer data, which varies by the area, as shown below:


0101: EDG (NLSP)


6. Enter 2 for Select menu : ? to select Adjustment/Print Inspection from the menu.



Select Menu : 1



...................................

........................................

..........................

..........................

1234569


Figure 4-17. Input Customer Data

...................................

...........................................

....................

Ink charge

All adjustment

Select Menu ?_


.............

01234567

89


.................................


Head angular adjustmentBK.-M Linear adjustmentHead GAP timming adjustmentBi-d adjustmentPrint inspection

Ink dischargeCustomer data change/End

Figure 4-18. Adjustment/Inspection Sub Menu

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8. Enter 3 for Select menu : ? to select Head Angle Adjustment from the menu. Then press

ENTER.

9. Enter a dummy 3-digit number, such as 000 or 111 for MC No., and the head angle

adjustment pattern prints out.

When you enter the MC number, the head angle adjustment pattern prints, and the following

message appears on the screen:

Space key to print again (Return for the MENU) (0 key to clean / E key to

escape error)

If you identify missing dots in the pattern, you can enter 0 to reprint the adjustment pattern after

cleaning the heads. Black and color head cleaning are executed together or individually; whichyou can select. This cleaning is identical to the CL2 cleaning.

10. Check the output to see whether the lines are printed at regular intervals. The figure below

shows how to move the head angle adjust lever to correct different misalignment patterns for

each head.

The slant changes in 0.02 mm units each time you move the head angle adjust lever one step.

Black Printing Color Printing

Move the LeverRight.

Move the LeverLeft.

Head Angle Adjust Lever

Move the LeverRight.

Move the LeverLeft.

Figure 4-19. Use of the Head Angle Adjust Lever

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Adjustments


11. After adjusting the head angle adjust lever, check the pattern by looking at the adjustment

pattern printout, press SPACE, and another adjustment pattern sheet prints out.

12. If the lines in the new adjustment patterns line up at regular intervals, press ENTER, and the

sub menu reappears on the screen.

13. If you do not proceed to another adjustment, enter 9 for Select menu : ? to select Customer

data change/End from the menu. Then press ENTER to return to the main menu.

14. Enter 9 for Select menu : ?. Then press ENTER to exit the program.

15. Remove the ink cartridges from the carriage unit and tighten the head fixing screws again.

4.2.6 BK-M Linear Adjustment

The BK-M linear adjustment is required after you replace the printhead or disassemble and

assemble the CR unit. This adjustment sets the vertical position of the color head, using the black

head as the basis. This adjustment, which is a physical operation, is accomplished by moving the

heads vertical adjust lever, attached to the right side of the CR unit. You run the adjustment

program to produce a head vertical adjustment pattern to identify misalignment caused by the

vertical gap between the black head and the color head. Then adjust the gap by moving the

heads vertical adjust lever. Therefore, with this adjustment no value needs to be written to

EEPROM. The adjustment procedure is as follows:

Be sure to loosen the head fixing screws before performing this adjustment.


CAUTION

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Adjustments



3. Enter 1 for Select menu : ? to select Input Customer data from the menu.4. Press ENTER, and the menu below appears.

5. Enter nnnn for Memory-SW data (4 col data) and press ENTER.

nnnn represents the customer data which varies by the area , as shown below;

0000: EAI, EAI (Latin)0101: EDG (NLSP)



Select Menu ?_

...................................

........................................

..........................

..........................

1

2

3

4

5

6

9




Select Menu : 1



...................................

........................................

..........................

..........................

1234569



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Adjustments


6. Enter 2 for Select menu : ? to select Adjustment/Print inspection from the menu.


8. Enter 4 for Select menu : ? to select BK.-M Linear adjustment from the menu.

9. Press ENTER, and the printer prints the adjustment pattern in black and magenta ink.

10. Check the output to see whether black and magenta lines are closely aligned. The figure

below shows how to move the head vertical adjust lever to correct different misalignment

patterns.

..............................................................................

....................

Ink charge

All adjustment

Select Menu ?_


.............

0123456789


.................................



Figure 4-22. Adjustment Inspection Sub Menu

Black Color

Move the lever forward. Move the lever to the rear.

Head Vertical Adjust Lever

Black Black Color Black

Figure 4-23. Use of the Head Vertical Adjust Lever

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Adjustments


The slant changes by one 0.02 mm unit when you move the head vertical adjust lever one step.

11. After adjusting the lever and looking at the adjustment pattern printout, press SPACE to print

another adjustment pattern sheet.

12. If the new adjustment pattern is aligned within specifications, press ENTER, and the sub

menu appears on the screen.

13. If there is no other adjustment to be performed, enter 9 for Select menu : ? to select

Customer data change/End from the menu. Then press ENTER to return to the main menu.

14. Enter 9 for Select menu : ?, and press ENTER to exit the program.

15. Remove the ink cartridges from the carriage unit and tighten the head fixing screws again.

4.2.7 Head Gap Timing Adjustment

You must adjust the head gap timing after you replace the C202 MAIN board or printhead or after

disassembling or assembling the CR unit to correct the vertical misalignment caused by different

print timings for the black and color heads. The adjustment method, as with the Bi-d adjustment,

involves entering an adjustment value, which is stored in the EEPROM on the C202 MAIN board.

The adjustment procedure is described below.

The value you enter is written to the EEPROM after you press ENTER after typing in the

value.

1. Insert the program diskette into diskette drive in the PC, and turn the PC on.

CAUTION

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Adjustments



3. Enter 1 for Select menu : ? to select Input Customer data from the menu.4. Press ENTER, and the menu below appears.


nnnn represents the customer data value, which varies by area, as shown below:


0101: EDG (NLSP)


6. Enter 2 for Select menu : ? to select Adjustment/Print inspection from the menu.


Select Menu ?_

...................................

........................................

..........................

..........................

1

2

3

4

5

6

9




Select Menu : 1



...................................

........................................

..........................

..........................

1234569



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Adjustments



8. Enter 5 for Select menu : ? to select Head GAP timing adjustment from the menu.

9. Press ENTER, and the menu below appears, along with 6 adjustment patterns (3 for 200 cps

and 3 for 100 cps) printed in black and magenta.

..............................................................................

....................

Ink charge

All adjustment

Select Menu ?_


.............

0123456789


...............................................................Write to the Head voltage value



Monitor display

Adjustment area (-30 to 30)

200 CPS : ?_

Adjustment pattern

200 cps : -2

200 dps : 0

200 cps : 2

100 cps : -2

100 cps : 0

200 cps : 2

Figure 4-27. Head Gap Adjustment Patterns

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Adjustments


10. Look at the output to check whether the black and color lines for are closely aligned. If not,

adjust the misalignment according to the result, as shown in the figure below.

If you change the value by 4 for 200 cps or 2 for 100 cps, the vertical line moves

approximately 0.07 mm.

11. Enter 9 for Select menu : ? to select Customer data change/End to return to the mainmenu.

12. Enter 3 for Select menu : ? to select Changing of center value. Press ENTER and the

following menu appears:

13. Type the value indicated in step 10. If you enter an incorrect value, press SPACE, and enter

the correct value. If the input values are correct, press ENTER to return to the sub menu.

Value to Enter:Minus

Value to Enter:Plus

Direction in whichthe paper is fed

Black

Color

Black

Black

Color

Black

Figure 4-28. Adjusting Value Determination

CAUTION

Figure 4-29. Changing of Center Value Menu

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Adjustments


14. Repeat steps 6 through 9 to verify the adjustment with the new center value. If it is still

incorrect, repeat steps 10 through 14 to set the correct value.


Customer data change/End from the menu, then press ENTER.

16. Enter 9 for Select menu : ? to exit the program.

4.2.8 Bi-d Adjustment

The bidirectional (Bi-d) adjustment is required under any of the following conditions:

the printer mechanism is replaced.

the C202 MAIN board is replaced.

the CR unit is disassembled or assembled.

the top frame is replaced

the CR motor is disassembled.

This program lets you align vertical lines by adjusting the print timing in the bidirectional black

print mode. This adjustment value is stored in the EEPROM on the C202 MAIN board. The

adjustment procedure is described below.

The adjustment is written to the EEPROM after you press ENTER after typing the value.



3. Enter 1 for Select menu : ? to select Input Customer data from the menu.

CAUTION

Input Customer dataAdjustment/Print inspectionChanging of center valueInput of comment

Change of dateChange of timeEND

Select Menu ?_

...................................

........................................

..........................

..........................

1

2

3

4

5

69



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nnnn represents the customer data value, which varies by area, as shown below:


0101: EDG (NLSP)

0001: Europe Standard (EDG, EFS, EIS, EIB, EUL)

6. Enter 2 for Select menu : ? to select Adjustment/Print inspection in the menu.


8. Enter 6 for Select menu : ? to select Bi-d adjustment from the menu.


Select Menu : 1



...................................

........................................

..........................

..........................

12

34569



..............................................................................

....................

Ink charge

All adjustment

Select Menu ?_


.............

0123456789


.................................




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9. Press ENTER, and the screen shows the following and 6 adjustment patterns: 3 for 267 cps

and 3 for 200 cps, printed in black and magenta, as shown in Figure 4-33.

Monitor display

Adjustment area (-30 to 30)267 CPS : ?_

267 cps Bi-D : -4

267 cps Bi-D : 0

267 cps Bi-D : 4

200 cps Bi-D : -2

200 cps Bi-D : 0

200 cps Bi-D : 2

Figure 4-33. Bi-d Adjustment Patterns

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10. Look at the output to check if the black and magenta lines are closely aligned. If not, adjust

the misalignment by referring to the output result, as shown in the figure below.

If you change the value by 4 for 267 cps or 2 for 200 cps, the vertical line moves

approximately 0.07 mm or 0.035 mm, respectively.

11. Enter 9 for Select menu : ? to select Customer data change/End to return to the main

menu.

12. Enter 3 for Select menu : ? to select Changing of center value. Press ENTER and the

following menu appears:

13. Type the value indicated in step 10. If you enter an incorrect value, press SPACE, and enter

the correct value. If the input values are correct, press ENTER to return to the sub menu.

14. Repeat steps 6 through 9 to verify the adjustment with the new center value. If it is still

incorrect, repeat steps 10 through 14 to set the correct value.

Value to Enter:Minus

Value to Enter:Plus

Direction in whichthe paper is fed

Figure 4-34. Adjusting Value Determination

CAUTION

Figure 4-35. Changing of Center Value Menu

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Customer data change/End from the menu, then press ENTER.

16. Enter 9 for Select menu : ? to exit the program.

Documents

800-ch4