Canon NP6251 Service Manual page 780

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Use it to control (fuzzy) the current applied to the

pre-transfer, transfer, and separation charging

assembly to suit the ambient temperature; or, to pro-

hibit it and select one of three environment settings.

Use it to switch the dark area target potential (VDT)

if the solid black on copies is too light.

Use it to turn on or off the sequence used to lower

the copying speed to maintain fixing in low-

temperature conditions.

Use it to lower the fixing temperature.

CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 11 TROUBLESHOOTING

0: fuzzy control ON

1: if image is light

because of high

2: if average humidity

3: if cleaner separation

claw and copy paper

come into contact

because of low

press '0', '1', '2', or '3'

on the keypad, and

press the " * " key.

–2: make lighter

–1: make somewhat

+1: make somewhat

+2: make darker

0: normal control

1: normal control –5°C

2: normal control –10°C

3: normal control –15°C

4: normal control –20°C

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