SATO M-8400RV manual Cleaning the Sensors, Cleaning the Rollers and Guides

Section 3: Cleaning and Maintenance

Cleaning the Rollers and Guides

1.The Label Load Drive is located underneath the Label Hold-Down. It should be cleaned of any label residue or foreign material. The Label Hold Down Roller is located on the underneath side of the Label Hold Down. It should also be cleaned of any residue or foreign material.

2.There are two Label Edge Guides used in guiding the labels through the printer. They should be cleaned of any residue or foreign material.

Label Edge

Guides

Sensor

Assembly

Label Hold

Down Roller

Label Drive

Roller

3.Repeat when necessary. The rollers and

guides should be cleaned whenever foreign matter such as dust or adhesive is present.

CLEANING THE SENSORS

There are two sensors that are used to control the positioning of the label. One is a transmissive see-thru sensor that detects the edge of the label by looking through the backing paper which is translucent and detecting the presence of the opaque label. The other is a reflective sensor that detects the light reflected from the bottom of the label liner. When a printed black Eye-Mark passes through the beam, the light is no longer reflected back to the sensor detector, indicating to the printer that it should use this position as the start of a new label. When dust, dirt or other foreign matter interferes with the light path of either of these sensors, the results is erratic label positioning. These sensors should be cleaned regularly, at least every two rolls of labels. They are both located on an adjustable assembly in the throat of the printer between the Label Hold Down and the Print Head.

1.Turn the printer off and remove the power cable.

2.Open the Top Access and Side Access doors.

3.Open the Print Head by pushing the Head Latch toward the rear of the printer. The Print Head is spring-loaded and will automatically open as soon as the Head Latch is disengaged. Remove the ribbon.

4.Apply SATO Thermal Print Head Cleaner to a cotton swab.

5.Carefully insert the swab between the top and bottom portions of the Sensor Assembly. The location of the sensors is identified by two marks on the front of the assembly.

6.Move the swab back and forth to clean any residue from the sensors (see Page 2-14 for location of sensors).

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