Technical information

m OPERATIONS ANDTIMING
3. Control Sequence for Development Bias
COPY START key ON
S TB 1 -, ó‘
\\hlLP i\IlLPR ’ IhTR SCF\\ SCRT SCF\\' SCR\I LSTH S'I'UY
Grid bias
Figure 3-29
@ The levels of the development bias DC component control signa1 and DC bias vafy according to the copy
density key and AE sensor output.
The level of the DC bias during image exposure varies according to the type of developing assembly.
@ The level of the DC bias varies according to the type of developing assembly; other than during image
exposure.
. black developing assembly -320 V (approx.)
. CT unit _,___._.__._________......................... -220 V (approx.)
Note:
The development bias AC component when the CT tmit is used is synchronized to the main motor
3-32
COPYRIGHI 0 1992 CANON ING.
CANON NP2,20/2MO NEV.0 MAY 1930 PRINTEO IN JAPAN IIMPNIME AU JAPON)