Is the cleaning blade worn?
No Yes
Replace the cleaning blade.
Are the erase lamp, quenching lamp and/or toner shield glass dirty?
No Yes
Clean the erase lamp, quenching lamp, and the toner shield glass,
as required.
If toner scattering occurs, see "1.13 Toner Scattering" later in this section.
If dirty background occurs only in ADS mode, do the following:
• If the ADS voltage (SP4-202) is not within 2.7 ± 0.1 volts (this is the
standard voltage), readjust the ADS voltage (SP4-201).
• Change the ADS density setting (SP5-106) from 1 (Normal) to 2 (Light).
If dirty background occurs only for some types of red paper originals in ADS
mode, do the following:
• Change the ADS sensor to the optional ADS sensor which has different
sensitivity for red paper originals. See "ADS SENSOR (OPTION)" in
Section 3.
FT5535/4527/4522 6-8 FSM
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