9.4 Process Adjustment

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9. SERField Service Ver.2.0 Sep. 2009

9.4 Process adjustment

9.4.1 High Voltage Auto Adj. (High Voltage Adjustment)

A. Function

• Automatically adjust current values and voltage values of a transfer, separation (AC), separation (DC), devel-oping bias respectively.

B. Usage

• Conduct this adjustment when replacing the high voltage unit /1, /2 (HV /1, /2).

C. Preparation

• The photo conductor section must be set.

D. Procedure

Note

• When an error message appears during the adjustment, check to see if the error unit is properly

installed and cleaned. Conduct the adjustment again.

9.4.2 HV Adjustment (Charge) (High Voltage Adjustment)

Do not conduct this adjustment in the field.

9.4.3 HV Adjustment (Transfer) (High Voltage Adjustment)


9.4.4 HV Adj. (Separation AC) (High Voltage Adjustment)


9.4.5 HV Adj. (Separation DC) (High Voltage Adjustment)


9.4.6 HV Adj. (Charging grid volt.) (High Voltage Adjustment)


9.4.7 HV Adj. (BiasDevelop. DC) (High Voltage Adjustment)


9.4.8 Transfer Guide Confirm (High Voltage Adjustment)

Do not use this adjustment in the field.

1. "Service mode menu screen"Press [02 Process Adjustment].

2. "Process Adjustment menu screen"Press [01 High Voltage Adjustment].

3. "High Voltage Adjustment menu screen"Press [01 High Voltage Auto Adj.].

4. "HV adjustment (Auto adjustment) screen"Press [Start]. After the automatic adjustment, the message of completion appears.

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9.4.9 Blade Setting Mode (Drum Peculiarity Adj.)

A. Function

• Apply toner to the cleaning blade and drum to prevent the damage.

B. Usage

• Perform this adjustment when changing the cleaning blade.

Note

• Perform this only when changing the cleaning blade. Otherwise, the cleaning blade special parts

counter is reset, thus making it impossible to implement the auto blade change in the right timing.

• Apply setting powder to the cleaning blade and drum.

C. Procedure


2. "Process Adjustment menu screen"Press [02 Drum Peculiarity Adj.].

3. "Drum Peculiarity Adj. menu screen"Press [01 Blade Setting Mode].

4. "Blade setting mode screen"Press [Start]. With toner applied, the drum is cleaned with the cleaning blade. The message of completionappears.

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9.4.10 Auto Drum Potential (Drum Peculiarity Adj.)

A. Function

• Automatically adjust the developing bias value, charging voltage and grid voltage to be suitable for the

drum.

B. Usage

• Conduct this adjustment when replacing the drum, developer, and write unit.

C. Procedure

Note

• When the following error messages appear, check to see if the drum potential sensor (DPS) is

properly installed and cleaned. Conduct the adjustment again.

1) Error 1

In the 0V check of the DPS, voltage over 100V is detected 5 times or more.

2) Error 2

The drum potential after laser exposure is detected to be over 350V, and it is determined that

control patch detect signal is not outputted.

3) Error 3

Drum potential has been corrected 10 or more times, but it does not converge.



3. "Drum Peculiarity Adj. menu screen"Press [02 Automatic Drum Potential].

4. "Auto drum potential adjustment screen"Press [Start]. After the automatic adjustment, the message of completion appears.

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9.4.11 Auto Maximum Density Adj. (Drum Peculiarity Adj.)

A. Function

• Automatically adjust the maximum density that is suitable for the drum.

B. Usage


C. Procedure

Note

• When the following error messages appear, check to see if the IDC sensor board (IDCB) is prop-

erly installed and cleaned. Conduct the adjustment again.

1) Error 1

The IDC sensor (IDCS) on the IDCB dirt correction has been corrected 10 or more times, but it

does not converge.

2) Error 2

The auto maximum density adjustment is not completed, when the developing roller rotation

speed reaches the specified value.

3) Error 3

No signal is outputted from the IDCS. Control patch detect signal is not outputted.



3. "Drum Peculiarity Adj. menu screen"Press [03 Auto Maximum Density Adj.].

4. "Auto maximum density adjustment screen"Press [Start]. After the automatic adjustment, the message of completion appears.

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9.4.12 Auto Dot Diameter Adj. (Drum Peculiarity Adj.)

A. Function

• Automatically adjust the dot diameter of laser beam that is suitable for the drum.

B. Usage


C. Procedure

Note



1) Error 1

The IDC sensor (IDCS) dirt correction on the IDCB has been conducted 10 or more times, but it

does not converge.

2) Error 2

The auto dot diameter adjustment completed with an abnormal value.



3. "Drum Peculiarity Adj. menu screen"Press [04 Auto Dot Diameter Adj.].

4. "Auto dot diameter adjustment screen"Press [Start]. After the automatic adjustment, the message of completion appears.

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9.4.13 LD Offset Adjustment (Drum Peculiarity Adj.)

A. Function

• Equally adjust two laser intensity.

B. Usage

• Conduct this adjustment when replacing the drum, developer, and write unit. • Conduct this adjustment when the print density is not even.

C. Procedure



3. "Drum Peculiarity Adj. menu screen"Press [05 LD Offset Adjustment].

4. "LD offset adjustment screen"Press the LD1 offset line speed [460mm], and press [COPY].

5. Select A3 or 11 x 17 paper, and press the Start button to output a test pattern.

6. Adjust laser intensity of LD1 and LD2.Standard value: Compare image patterns createdby the LD1 and LD2. Confirm that density is uniform(±1 gap is OK) as per the following figure, and thehighlighted patterns start between the two referencelines [1].

7. When the value is not within the standard value, press [SERVICE].

8. "LD offset adjustment screen"Press [460mm] for the laser you want to adjust (LD1 offset or LD2 offset). Enter a value through thenumeric keys and press [Set] and then the [COPY].Setting range: -128 (lighter) to +127 (darker)

9. Select A3 or 11 x 17 paper, and press the Start button to output a test pattern.

10. When the value is not within the standard value, press [SERVICE] to repeat steps 5 to 9 until the standardvalue can be obtained.

11. Adjust the line speed 290mm likewise as well.

LD1 LD2 LD1 LD2 LD1 LD2 LD1 LD2

[1]

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9.4.14 Auto Gamma Adj. (1dot) (Drum Peculiarity Adj.)

A. Function

• Automatically adjust image gradation (gamma).

B. Usage


C. Procedure

Note



1) Error 1

The IDC sensor (IDCS) dirt correction on the IDCB has been conducted 10 or more times, but it

does not converge.

2) Error 2

No signal is outputted from the IDCS. Control patch detect signal is not outputted.

3) Error 3

Regression error during the gamma curve calculation.

9.4.15 LD1 Bias Adjustment (Drum Peculiarity Adjustment)


9.4.16 LD2 Bias Adjustment (Drum Peculiarity Adjustment)




3. "Drum Peculiarity Adj. menu screen"Press [06 Auto Gamma Adj. (1dot)].

4. "Auto gamma adjustment (1dot) screen"Press [Start]. After the automatic adjustment, the message of completion appears.

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9.4.17 Cartridge Set Mode (Drum Peculiarity Adj.)

A. Function

• Agitate the recycle toner that is back to the developer to prevent the overflow toner to the conveyance sec-

tion.

B. Usage

• Conduct this adjustment when black spots (toner) appear on the print-out after removing/inserting thephoto conductor section.

C. Procedure

9.4.18 Drum Peculiarity Manual




3. "Drum Peculiarity Adj. menu screen"Press [09 Cartridge Set Mode].

4. "Cartridge set mode screen"Press [Start]. The development unit and the drum rotate for 3 minutes to charge low-charge toner.

5. After the rotation stops, press [COPY].

6. Select the A3 or 11 x 17 paper. Press the Start button to output 10 blank papers, thus cleaning the drum.

7. When the black spot does not disappear, press [SERVICE] to repeat steps 4 to 6.

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9.4.19 User Paper Setting

A. Function

• Adjust when the transfer and separation functions and fusibility do not work satisfactorily with the standard

adjustments because of using special papers.

B. Usage

This setting is applied when you select [User] as the paper type. By default, the following data are inputted.• Fusing temperature for Japan: High quality paper of 62 to 71 g/m2

• Fusing temperature for the other countries: High quality paper of 72 to 80 g/m2

Note

• Input data according to instructions of KMBT field support section.

C. Procedure


2. "Process Adjustment menu screen"Press [04 User Paper Setting].

3. "User Paper Setting menu screen"Press [Next] or [Back] to select an item you adjust.

4. Input data for the selected item, and press [Set].

5. Repeat steps 3 and 4 to configure other items.

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9.4.20 Recall Standard Data

A. Function

• Reset the adjustment values of the process adjustment to the factory initial data or the installation initial

data.

B. Usage

• Conduct this adjustment when the initialization cannot be done because of the various change by CE.

C. Procedure


2. "Process Adjustment menu screen"Press [05 Recall Standard Data].

3. "Recall standard data : Process adjustment screen"Press [Factory Initial Data] or the [Installation Initial Data].

Note

• Selecting [Factory Initial Data] recalls the factory initial data.

• Selecting [Installation Initial Data] recalls the adjustment values stored when code "91" of the I/

O check mode was conducted.

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© 2009 KONICA MINOL T A BUSINESS TECHNOLOGIES, INC .

Printed in Japan CCA0Y5-M-FE2- 0000

Use of this manual should be strictly supervised to avoid disclosu r e of confidential information .

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9.4 Process Adjustment