Toshiba 3511 Manual Do Utilizador

November 2003  ©  TOSHIBA TEC

3 - 45

e-STUDIO3511/4511 ADJUSTMENT

The high-voltage transformers (PS-HVT-350) supply high-voltage to the parts related to charging,

development, transfer and drum cleaning.

The high-voltage transformer has the following high-voltage outputs.

CH1: Main charger wire

CH2: Main charger grid bias

CH3: Color developer bias

CH4: Black developer bias

CH5: 1st transfer roller bias

CH6: 2nd transfer roller bias

CH7: Cleaning blade bias

Make sure not to lose the data sheets which are attached to the high-voltage transformers. Use these

sheets for the following setting.

Never move the fixed volumes of resistors since output adjustment is performed when the devices are

shipped.

After replacing a high-voltage transformer, be sure to enter the data shown on the data sheets (main

charger grid bias, color/black developer bias and 1st/2nd transfer roller bias) noted above according to

the following procedure.

(1)

While pressing [0] and [5] simultaneously, turn the power ON.

(2)

Key in the adjusting codes in the table below and press the [START] button.

(3)

Key in the adjusting value corresponding to each code on the attached sheets, and then press

[ENTER] or [INTERRUPT].

(4)

Key in all the codes in the above table by repeating (2) and (3).

(5)

Turn the power OFF.

Adjusting code

334

335

338

339

372

373

250

251

252

253

Item to be adjusted

Main charger grid bias lower limit value

Main charger grid bias upper limit value

Color developer bias lower limit value

Color developer bias upper limit value

Black developer bias lower limit value

Black developer bias upper limit value

1st transfer roller bias lower limit value

1st transfer roller bias upper limit value

2nd transfer roller bias lower limit value (+)

2nd transfer roller bias upper limit value (+)

Adjusting value

Refer to the data sheets

<Adjustment Mode (05)>