HP Enterprise 500 manual Roller state Product state

Table 1-12Primary-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 1-24Three states of primary-transfer-roller engagement and disengagement

Four colors are disengaged

FUSER MOTOR CONTROL

Fuser motor

Y

Y M

M C

C K

Four colors are engaged

K

Y

Y

M

M

C

C

Only black is engaged

K

K

Y

Y M

M C

C

K

K

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