Table 1-12 Primary-transfer-roller engagement states (continued)
Roller state Product state
All rollers engaged The state for a full-color print job
Black roller engaged The state for a black-only print job
Figure 1-24 Three states of primary-transfer-roller engagement and disengagement
Four colors are disengaged
Four colors are engaged
Only black is engaged
Y
M
C
K
Y
M
C
K
Y
M
C
K
Y
M
C
K
Y
M
C
K
Y
M
C
K
Fuser motor
FUSER MOTOR CONTROL
The primary-transfer-roller disengagement motor rotates or reverses to place the primary-transfer-roller
disengagement cam into one of three positions. The cam causes the transfer-roller slide plate to move to
the right or left. This movement causes the primary-transfer rollers to move up to engage the ITB with the
photosensitive drum or down to disengage it.
ENWW
Image formation system
33