SHARP Z840
Manual de Servicio

(3)

Press the exposure select key to increase the brightness to set to exposure level 1. The exposure level is automatically entered according to the value which was entered for exposure level 3.

D. Photo copy mode copy density adjustment
(1) Press the exposure mode select key to set to the photo mode. The operation panel displays the photo mode. When exposure level 3 is displayed, the value is displayed on the copy quantity display.

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(4)

Make a copy. Check that "7" of the exposure test chart (SHARP GRAY CHART) is slightly copied. (When too light): Make the displayed value on the copy quantity display smaller. (When too dark): make the displayed value on the copy quantity display greater. * The value is adjustable in the range of 1 � 99. * When the value is changed by 1, the voltage is changed by about 0.33V. (2) Adjust at exposure level 3, 1, and 5 similarly with the manual mode (non-toner save mode).

E. Auto copy mode (Non-toner save mode) copy density adjustment
(1) Press the exposure select key to set to the auto exposure mode. Exposure level 1 of auto exposure mode is displayed on the operation panel, and the value is displayed on the copy quantity display.

(5)

Press the exposure key to decrease the exposure to set to exposure level 5. The exposure level is automatically entered according to the value which was entered for exposure level 3.

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(2) (3)

Check that "10" is displayed on the copy quantity display. Press the exposure key to decrease exposure level to set to exposure 5.

(6)

Make a copy. Check that "2" of the exposure test chart (SHARP GRAY CHART) is clearly copied. (When too light): Make the displayed value on the copy quantity display smaller. (When too dark): make the displayed value on the copy quantity display greater. * The value is adjustable in the range of 1 � 99. * When the value is changed by 1, the voltage is changed by about 0.33V.

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1

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5

(4)

Make a copy. Check that "4" of the exposure test chart (SHARP GRAY CHART) is slightly copied. (When too light): Make the value displayed on the copy quantity display smaller. (When too dark): Make the value displayed on the copy quantity display greater.

C. Manual copy mode (Toner save mode) copy density adjustment
(1) Press the exposure mode select key to set to the toner save mode. The operation panel displays the toner save mode at the same time. When exposure level 3 is displayed, the value is displayed on the copy quantity display.

F. Auto copy mode (Toner save mode) copy density adjustment
(1) Press the exposure select key to set to the auto exposure mode. Exposure level 1 of auto exposure mode is displayed on the operation panel, and the value is displayed on the copy quantity display.

AE

1

3

5

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3

5

(2)

Adjust at exposure level 3, 1, and 5 similarly with the manual mode (non-toner save mode).

(2) 9 � 22

Adjust at exposure level 3, 1, and 5 similarly with the auto copy mode (non-toner save mode).