Integra CROMA24 service manual Paper Media Axis Drive

Croma24 Service Manual

Paper (Media) Axis Drive

THEORY OF

OPERATION

Figure 2-2. Paper (Media) Axis Drive.

The Paper (Media) Axis Drive moves the plotting media in a direc- tion perpendicular to the length of the printer. This friction drive utilizes a micro-step drive technology and consists of a stepper motor, reduction gears, lower drive shaft assembly, and pinch wheels. This can be seen in Figure 2-2.

The micro-step technology associated with the stepper motor gives the capability of a resolution up to 600 dpi.

The reduction gear meshes the stepper motor to the lower drive shaft assembly which allows the media to advance or retract.

The purpose of the pinch wheels is to apply pressure to the media onto the drive shaft assembly to reduce the chance of slipping.

Misaligned pinch wheels is the main cause of skewing of the media.

Theory of Operation 27