Service manual

1-3-11

2DA/2DB

Maintenance mode 070 (sub-scan line adjustment)

1. Run maintenance mode 070.

Select CONVEY SPEED1.

(For adjustment of the back side in duplex copying, select CONVEY SPEED2.)

Set originals in the original tray and press the interrupt key. Make a test copy to check the image.

If an adequate image cannot be obtained, carry out the following adjustment.

2. For copy example a: decrease the value.

For copy example b: increase the value.

Setting range: -25 - +25

Changing the value by one changes the sub-scan line by 0.1%.

A smaller setting value makes the copy image shorter. A larger value makes the image longer.

Maintenance mode 071 (leading edge timing adjustment)

1. Run maintenance mode 071.

Select LEAD1.

(For adjustment of the back side in duplex copying, select LEAD2.)

Set originals in the original tray and press the interrupt key. Make a test copy to check the image.

If an adequate image cannot be obtained, carry out the following adjustment.

2. For copy example a: increase the value.

For copy example b: decrease the value.

Setting range: -32 - +32

Changing the value by one moves the leading edge by 0.2 mm.

The larger the value, the later the image scan start timing.

The smaller the value, the earlier the image scan start timing.

Figure 1-3-16

Figure 1-3-17

Original Copy example a Copy example b