Toshiba Estudio 230 Manual
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3.5.2 Sharpness adjustment
If you want to make scan images look softer or shar
per, perform the following adjustment.
< Adjustment Mode (05) >
(1) While pressing [0] and [5] simultaneously, turn the power ON.
(2) Key in a code and press the [START] button.
(3) Key in the sub code (0,1 or 2), and press the [S TART] button.
(4) Key in an adjustment value. (To correct the keyed-in value, press the [CLEAR] b utton.)
(5) Press the...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-325.png "Page 326
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC
3 - 30
3.5.2 Sharpness adjustment
If you want to make scan images look softer or shar
per, perform the following adjustment.
< Adjustment Mode (05) >
(1) While pressing [0] and [5] simultaneously, turn the power ON.
(2) Key in a code and press the [START] button.
(3) Key in the sub code (0,1 or 2), and press the [S TART] button.
(4) Key in an adjustment value. (To correct the keyed-in value, press the [CLEAR] b utton.)
(5) Press the...")
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3
3.6 Adjustment of High-Voltage Transformer
When replacing the high-voltage transformer, checki ng each output adjustment of main charger, devel-
oper bias, transfer charger and separation charger is needed.
3.6.1 Adjustment
[ 1 ] Preparation
Items to check Developer Bias Main Charger Transfer
Charger Separation
Charger
Process Unit Take off from the equipment. (Not used)
High-Voltage Transformer Jig Install the high-voltag e...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-328.png "Page 329
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT
3 - 33
3
3.6 Adjustment of High-Voltage Transformer
When replacing the high-voltage transformer, checki ng each output adjustment of main charger, devel-
oper bias, transfer charger and separation charger is needed.
3.6.1 Adjustment
[ 1 ] Preparation
Items to check Developer Bias Main Charger Transfer
Charger Separation
Charger
Process Unit Take off from the equipment. (Not used)
High-Voltage Transformer Jig Install the high-voltag e...")
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[A] Installation of the high-voltage transformer jig
(1) Open the bypass tray, ADU and transfer cover.
(2) Open the front cover and take off the toner
cartridge.
(3) Disconnect 1 connector. Loosen 2 screws and pull out the process unit.
Note: Note: Be careful not to let the connector and the
harness be caught when installing the pro-
cess unit after adjustment.
Fig.3-19
(4) Install the high-voltage transformer jig and fix...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-329.png "Page 330
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[A] Installation of the high-voltage transformer jig
(1) Open the bypass tray, ADU and transfer cover.
(2) Open the front cover and take off the toner
cartridge.
(3) Disconnect 1 connector. Loosen 2 screws and pull out the process unit.
Note: Note: Be careful not to let the connector and the
harness be caught when installing the pro-
cess unit after adjustment.
Fig.3-19
(4) Install the high-voltage transformer jig and fix...")
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[B] Connection for developer bias adjustment
Fig.3-23
[C] Connection for main charger adjustment
Fig.3-24
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( -)
terminal:
Connect with the white cable (
+ )
terminal:
Connect with the black cable
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( -)
terminal:
Connect with the white cable (
+ )
terminal:
Connect with...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-331.png "Page 332
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC
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[B] Connection for developer bias adjustment
Fig.3-23
[C] Connection for main charger adjustment
Fig.3-24
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( -)
terminal:
Connect with the white cable (
+ )
terminal:
Connect with the black cable
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( -)
terminal:
Connect with the white cable (
+ )
terminal:
Connect with...")
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3
[D] Connection for transfer/separation charger adjus tment
Fig.3-25
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( - )
terminal:
Connect with the white cable (
+ )
terminal:
Connect with the
red cable (
thin line )](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-332.png "Page 333
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT
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3
[D] Connection for transfer/separation charger adjus tment
Fig.3-25
Front cover opening/closing switch
Ground to the
machine frame ( green cable )
( - )
terminal:
Connect with the white cable (
+ )
terminal:
Connect with the
red cable (
thin line )")
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[ 2 ] Operation
Note: Note:
When adjusting output of high-voltage transformer, make sure to use the high-voltage trans-
former jig.
Connect the digital testers as described in “[1] Pr eparation”, and follow the procedure on the next
page to adjust the output from the main charger, de veloper bias charger, transfer charger and sepa-
ration charger.
Fig.3-26
100% A3
A
TEST MODE
100% XXX
YYY A3
TEST MODE
100% A3
A
TEST MODE...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-333.png "Page 334
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[ 2 ] Operation
Note: Note:
When adjusting output of high-voltage transformer, make sure to use the high-voltage trans-
former jig.
Connect the digital testers as described in “[1] Pr eparation”, and follow the procedure on the next
page to adjust the output from the main charger, de veloper bias charger, transfer charger and sepa-
ration charger.
Fig.3-26
100% A3
A
TEST MODE
100% XXX
YYY A3
TEST MODE
100% A3
A
TEST MODE...")
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3
3.6.2 Precautions
[ 1 ] Developer bias
Note for adjustment
Adjust the developer bias if fogging occurs over the entire image even though the main charger grid
voltage and toner density are appropriate. However, the following may occur if the developer bias is
lowered too much:
Image contrast becomes low.
Image is patchy or blurred.
The carrier in the developer material adheres to t he photoconductive drum, causing...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-334.png "Page 335
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT
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3
3.6.2 Precautions
[ 1 ] Developer bias
Note for adjustment
Adjust the developer bias if fogging occurs over the entire image even though the main charger grid
voltage and toner density are appropriate. However, the following may occur if the developer bias is
lowered too much:
Image contrast becomes low.
Image is patchy or blurred.
The carrier in the developer material adheres to t he photoconductive drum, causing...")
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[ 3 ] Separation
Items to check before adjustment
Poor paper separation from the drum can be also cau
sed by matters other than defective adjustment of
the separation output. Check the following items be fore making an adjustment. If there is no problem,
adjust the output of the separation charger.
Is the charger wire incorrectly installed or dirty ?
Is the process unit installed properly? Is the dev eloper magnetic brush...](http://img.usermanuals.tech/thumb/76/103453/w64_estudio-230-manual-1513181221_d-335.png "Page 336
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[ 3 ] Separation
Items to check before adjustment
Poor paper separation from the drum can be also cau
sed by matters other than defective adjustment of
the separation output. Check the following items be fore making an adjustment. If there is no problem,
adjust the output of the separation charger.
Is the charger wire incorrectly installed or dirty ?
Is the process unit installed properly? Is the dev eloper magnetic brush...")
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT 3 - 35 3 (6) Install the door switch jig. (7) Close the transfer cover. Fig.3-22 Door switch jig Front cover opening/closing switch
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC 3 - 36 [B] Connection for developer bias adjustment Fig.3-23 [C] Connection for main charger adjustment Fig.3-24 Front cover opening/closing switch Ground to the machine frame ( green cable ) ( -) terminal: Connect with the white cable ( + ) terminal: Connect with the black cable Front cover opening/closing switch Ground to the machine frame ( green cable ) ( -) terminal: Connect with the white cable ( + ) terminal: Connect with the red cable ( thick line )
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT 3 - 37 3 [D] Connection for transfer/separation charger adjus tment Fig.3-25 Front cover opening/closing switch Ground to the machine frame ( green cable ) ( - ) terminal: Connect with the white cable ( + ) terminal: Connect with the red cable ( thin line )
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC 3 - 38 [ 2 ] Operation Note: Note: When adjusting output of high-voltage transformer, make sure to use the high-voltage trans- former jig. Connect the digital testers as described in “[1] Pr eparation”, and follow the procedure on the next page to adjust the output from the main charger, de veloper bias charger, transfer charger and sepa- ration charger. Fig.3-26 100% A3 A TEST MODE 100% XXX YYY A3 TEST MODE 100% A3 A TEST MODE Return to 1 to enter the other adjustment code. [0][5] [POWER] Press the front cover opening/closing switch. [UP] or [DOWN] : Adjust the value “YYY” to satisfy the following table. [Digital keys] [START] : Enter the code. [POWER] : OFF/ON Code 210 Adjustment value -495±5V Code No. Current set value [SET] or [INTERRUPT] : Adjusted value “YYY” is stored in memory. 1 Developer bias Main charger205 -357±5V Code 221 Adjustment value 1407±141mV Transfer charger Leading edge area of paper Center area of paper 222 1005±106mV Trailing edge area of paper 220 1326±141mV Code 234 Adjustment value -566±72mV Separation charger Leading edge area of paper Center area of paper 235 -391±36mV Trailing edge area of paper 233 -566±72mV
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT 3 - 39 3 3.6.2 Precautions [ 1 ] Developer bias Note for adjustment Adjust the developer bias if fogging occurs over the entire image even though the main charger grid voltage and toner density are appropriate. However, the following may occur if the developer bias is lowered too much: Image contrast becomes low. Image is patchy or blurred. The carrier in the developer material adheres to t he photoconductive drum, causing scratches around the cleaner. [ 2 ] Transfer Items to check before adjustment Blotched image or poor transfer can be also caused by matters other than defective adjustment of transfer output. Check the following items before ad justing the transfer charger. If there is no problem, adjust the output of the transfer charger. Is the charger wire incorrectly installed or dirty? Is the transfer guide deformed? Is the process unit properly installed? Is the dev eloper magnetic brush in contact with the drum? Is the process unit worked correctly? Is the toner density low? Is the copy paper fed straight? Is the copy paper abnormally moist? Is the rotation of the registration roller normal? Is the separation output different from the set va lue? Is the developer bias value an appropriate one? Are the transfer/separation charger case grounded? Is the high-voltage transformer grounded? Note for adjustment When blotched image appear: If blotched image appear in halftone areas, lower the transfer output value. Remember that transfer performance becomes low if the transfer output valu e is lowered too much. When poor transfer occurs: Increase the transfer output value under the follow ing conditions. Remember that blotched image appear if the transfer output value is increased to o much. Transfer is poor even though the charger wire is n ot dirty. Thick paper has been frequently used. The adjustment code varies according to where blotc hed image and poor transfer occur. Select the required adjustment code while referring to the fol lowing diagram. Fig.3-27 220 Approx. 11mm Adjustment code Leading edgearea of paper Trailing edge area of paper221222 Approx. 5mm
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC 3 - 40 [ 3 ] Separation Items to check before adjustment Poor paper separation from the drum can be also cau sed by matters other than defective adjustment of the separation output. Check the following items be fore making an adjustment. If there is no problem, adjust the output of the separation charger. Is the charger wire incorrectly installed or dirty ? Is the process unit installed properly? Is the dev eloper magnetic brush in contact with the drum? Is the process unit worked correctly? Is the toner density low? Is the copy paper fed straight? Is the copy paper abnormally moist? Is the rotation of the registration roller normal? Is the output of the main charger normal? Is the developer bias an appropriate value? Is the transfer output different from the set valu e? Is the transfer/separation charger case grounded? Is the high-voltage transformer grounded? Is the separation finger in contact with the drum surface? Note for adjustment When poor paper separation occurs: Increase the separation output value under the foll owing conditions. Remember that if the separation output value is increased too much, blotched image occurs and separation performance becomes low. Poor separation occurs even though the charger wir e is not dirty. Thin paper has been frequently used. When poor transfer occurs: Decrease the separation output value when poor tra nsfer occurs. Remember that the separation performance becomes low if the separation output va lue is decreased too much. The adjustment code varies according to where poor paper separation and poor transfer occur. Select the required adjustment code while referring to the following diagram. Fig.3-28 * Adjustment code 235 performs the adjustment for 2 areas. 233 Approx. 11mm 235 Approx. 35mm Adjustment code Leading edgearea of paper Trailing edge area of paper234235 Approx. 48mm
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT 3 - 41 3 3.7 Adjustment of the Scanner Section 3.7.1 Carriages [A] Installing carriage wires When replacing the carriage wires, refer illustrati ons below: [Front side] Fig.3-29 [Rear side] Fig.3-30 Adjustment of the carriage wire tension is not nece ssary since a certain tension is applied to the car- riage wires by the tension springs. Note: Note: Make sure the tension applied to the wire is normal . Carriage-2 Idler pulley Tension spring Wire pulley Bracket for carriage-1 Hook Carriage wire Carriage-2 Carriage wireBracket for carriage-1 Hook Wire pulley Tension spring Idler pulley
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC 3 - 42 [B] Adjusting carriages-1 and -2 positions (1) Move the carriage-2 toward the exit side. (2) Loosen the screws fixing the front side pulley b racket, make the sections A and B of the carriage- 2 touch with the inside of the exit side frame and screw them up. Fig.3-31 Carriage-2 Pulley bracket [Rear] [Front] Exit side frame A B
June 2004 © TOSHIBA TECe-STUDIO200L/202L/230/232/280/282 ADJUSTMENT 3 - 43 3 (3) Put the carriage-1 on the rail, make the section s C and D of it touch with the inside of the exit side frame and screw up the front/rear sides of the bracket to fix it. Note: Note: Make sure that the sections A and B of the carriage -2 touch with the exit side frame. Fig.3-32 Carriage-1 [Rear] [Front] Exit side frame Bracket Bracket C D
e-STUDIO200L/202L/230/232/280/282 ADJUSTMENTJune 2004 © TOSHIBA TEC 3 - 44 [C] Assembling carriage wires (Winding the wire arou nd the wire pulley) (1) Pull the Ø3 ball terminal located at the center of the wire into a hole on the wire pulley. One end of the wire with a hook attached comes to the outsi de. (2) Wind the wires around the wire pulleys of the fr ont and rear sides. The number of turns to be wound are as follows: 2 turns toward the opposite side of the boss 4 turns toward the boss side Note: Note: Pay attention to the following when the wires are wo und around the pulleys: - Do not twist the wire. - Wind the wires tightly so that they are in complet e contact with the surface of the pulleys. - Each turn should be pushed against the previously w ound turn so that there is no space between them. Fig.3-33 4 turns4 turns 2 turns 2 turns No space between turns Ball terminal Ball terminal Color: Black Color: Silver Hook Hook [Rear][Front]