Abstract: A headrest for an ophthalmic instrument facilitates fine positioning of the instrument relative to an eye of a test subject without the need to remove a contact element of the headrest from contact with the test subject's face. The ophthalmic instrument may be, for example, a rebound tonometer or a non-contact tonometer. The headrest includes a hollow bulbous contact element formed of resiliently deformable material, for example a thermoplastic elastomer (TPE) or silicone rubber. An outer surface of the contact element may have a spherical shape or a spheroidal shape when the contact element is not deformed.

Abstract: A headrest for an ophthalmic instrument facilitates fine positioning of the instrument relative to an eye of a test subject without the need to remove a contact element of the headrest from contact with the test subject's face. The ophthalmic instrument may be, for example, a rebound tonometer or a non-contact tonometer. The headrest includes a hollow bulbous contact element formed of resiliently deformable material, for example a thermoplastic elastomer (TPE) or silicone rubber. An outer surface of the contact element may have a spherical shape or a spheroidal shape when the contact element is not deformed.

Abstract: A docking station for receiving a hand-held rebound tonometer and a probe container carrying disposable tonometer probes has a docking cavity for receiving a portion of the rebound tonometer and a container receptacle for receiving the probe container. The docking station has an actuation feature arranged to move a cover associated with the probe container from a closed position to an open position as the container is inserted into the container receptacle so that tonometer probes in the container are accessible. The actuation feature may include a projection extending into an entryway leading to the container receptacle for engaging the cover but not the container, such that further insertion of the container moves the cover from the closed to the open position. The docking station may also have a storage recess for receiving an empty probe tube and cap after the probe has been removed from the tube for use.

Abstract: A docking station for receiving a hand-held rebound tonometer and a probe container carrying disposable tonometer probes has a docking cavity for receiving a portion of the rebound tonometer and a container receptacle for receiving the probe container. The docking station has an actuation feature arranged to move a cover associated with the probe container from a closed position to an open position as the container is inserted into the container receptacle so that tonometer probes in the container are accessible. The actuation feature may include a projection extending into an entryway leading to the container receptacle for engaging the cover but not the container, such that further insertion of the container moves the cover from the closed to the open position. The docking station may also have a storage recess for receiving an empty probe tube and cap after the probe has been removed from the tube for use.

Abstract: A linerless label dispenser includes a cutting mechanism. Linerless labels are transported from a roll underneath a plastic guide and onto an adhesive-release material guide structure/ramp past a sensor to a print head which prints indicia on the release material coated face of the labels. From the print head and cooperating print roller the labels pass to a plasma coated stripper surface which is disposed at an upwardly directed angle between about 20-35.degree. with respect to the horizontal, and into contact with a plasma coated stationary anvil blade. The anvil blade is spaced downwardly from the stripper surface a distance of about 0.001-0.008 inches (preferably about 0.002-0.004 inches) and cooperates with a plasma coated or texture painted rotary blade of a rotary cutter. Downstream of the blades may be a plasma coated exit roller typically cooperating with a hold down mechanism for dispensing individual cut labels.

Abstract: A label applicator, easily mounted on a desktop in association with a label printer, has a compact configuration with no external power requirements since the components are electrically powered and the power is received from the printer. Preferably the label does not move during application, providing a high degree of accuracy and placement. The applicator may be used with both linered and linerless labels and associated printers, and uses inexpensive components. Positive stops are provided for stopping the movement of a label into the applicator housing, and the manual movement of a mailpiece into the applicator housing. Sensors sense the label and the mailpiece when accurately aligned, and cause actuation of a linear solenoid with tamp pad to move the mailpiece vertically upwardly into contact with the label pressure sensitive adhesive. The label is held in place in the desired position by one or more electric fans exhausting air from the opposite face of an apertured plate from the label.

Abstract: A dispensing mechanism dispenses labels having a pressure sensitive adhesive face and an adhesive release material coated face. A guide serves to guide the labels in web form along plasma-coated surfaces to a printer and then to a cutter mechanism for forming discrete labels and dispensing the labels. An open-cell foam sponge is provided for wiping the rotary cutter using silicone oil wicked into the wiper. A plate projects from the exit opening of the dispenser at an angle to the guide path to maintain the cut label on the dispenser plate. Additionally, a hub assembly is provided wherein the hub has a contact area in excess of 50% of the available contact area along the inside of the core mounting the label supply.

Abstract: Print cartridges for ion/electron deposition printing are periodically cleaned to provide preventive maintenance, using a simple cleaning assembly that automatically moves the cartridges first past a water washing nozzle, and then past an air drying nozzle, at slow speed, then being manually withdrawn from the cleaning assembly and replaced in the printer. The drive mechanism typically is a single roller disposed above the print cartridge, driven by a motor connected to the housing. A single water spray nozzle is disposed at an intermediate portion of the housing directed with a fan pattern spray up toward the cartridge, and a single air nozzle supplied with heated air is disposed adjacent the outlet of the cartridge.