Laser Safety Precautions for Dolev 4press/4news (Engineer & Operator)

Author/Submitter: I. Yeshurun (04/22/96)
Document Released: 04/17/96

Product Family: Imagesetters / Platesetters

• Service Engineer Laser Safety Precautions
• Operator Laser Safety Precautions

Service Engineer Laser Safety Precautions

for the DOLEV 4press/4NEWS

Read these safety precautions carefully before installing, operating or servicing the DOLEV 4press/4NEWS imagesetter.

Read the Operator laser safety precautions for the DOLEV 4press/4NEWS, an indispensable part of the service engineer's precautions.

DANGER!

Even brief exposure of the eyes to the laser beam or its reflections may cause permanent loss or permanent degradation of eyesight.

CAUTION!

Use of controls and/or adjustments, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

Safety Instructions for the Service Engineer

1. Many service procedures can be performed while the imagesetter is switched off. Service the imagesetter while off whenever possible.
2. Defeat the interlock switches only when no alternative service procedure is available. Many service procedures can be performed while the interlocks are not defeated.
3. When the interlocks are defeated, hazardous movements of the imagesetter motors, including the carriage, knife and the spinner motor are likely to occur.

Beware not to be exposed to hazardous movements!

Beware not to touch the spinner motor or the prism while they are rotating!

Note:

• It may take up to 30 seconds to the rotating prism to rest after its power had been cut off!
• Even when the Interlocks are not defeated, the media Loading Rollers located inside the loading drawer may be rotating. Keep your hands off the running loading rollers!
• Especially refrain from defeating the interlock when the "knife" laser attenuator at static optic assembly is at minimum attenuation position.

4. Avoid defeating the interlock while the fiber optic connectors are disconnected from their mates fastened to the chassis, as the fibers may be free to move and radiate laser light in uncontrolled directions.
5. To minimize the chance of laser reflection, remove all jewelry, wristwatches and reflective objects from your hands and wrists prior to service.
6. Wear the laser safety alignment goggles if you are in danger of exposure to the beam or its reflections.
   Goggles are: CreoScitex Cat. No. 507B35948.
   The goggles are marked: OD 1-2, 400-700 nM, 20 mW.
7. Make sure that no one near or far can be exposed to the beam.

If the interlocks are defeated, the optical and mechanical assemblies of the imagesetter remain energized and hazardous. In addition to the electrical and mechanical hazards, up to 5 milliwatt of laser power at a wavelength of approximately 650 nanometer may be present at the Static optic assembly output optical connector, Dynamic optic assembly, optical Fibers, optical fibers Connectors and on the inside of the imagesetter Drum; up to 10 milliwatt of laser power at this wavelength may be present inside the Static optic assembly,

THIS LASER RADIATION IS HAZARDOUS TO THE EYE AND SKIN.

DANGER! Avoid exposure to the beam and its reflections!

Notes regarding the use of the laser protection goggles:

• The human blinking process is an essential part of goggle protection. Do not intentionally refrain from blinking.
• Before putting on your goggles, check them for defects.
• Even with goggles on, never look into the laser beam or its reflections.
• Wearing the goggles will not impede laser alignment actions.

Warning Labels

Make sure that all warning labels are in good order, renew warning labels if needed.

Read these safety precautions carefully before installing, operating, or maintaining the DOLEV 4press/4NEWS imagesetter.

DANGER!

Even brief exposure of the eyes to the laser beam or its reflections may cause permanent loss or permanent degradation of eyesight.

CAUTION!

Use of controls and/or adjustments, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

The DOLEV 4press/4NEWS imagesetter is installed and serviced exclusively by specialized technicians trained in the proper procedures for working with and adjusting the Semiconductor Laser beam power and its optical path.

The imagesetter operator is allowed to perform one maintenance procedure: to remove film (supply media) stuck at the imagesetter drum area.

Upon opening the left or right imagesetter doors, safety interlock switches are provided to disconnect power from the laser and the imagesetter motors.

The operator is forbidden under all circumstances to defeat any of the safety interlock switches!

Film Jams

To remove film (supply media) stuck at the imagesetter drum area, do the following:

• If access is needed to the loading or unloading cassettes, open the loading and/or unloading drawers by using the imagesetter control panel commands.
• Use a screwdriver to open the three screws fastening the left and/or right imagesetter doors, open the door to get access to the inside of the imagesetter drum.
• Be sure not to defeat the side doors' safety interlocks!
• Beware not to touch the spinner motor or the rotating prism while they are rotating!
  Note: It may take up to 30 seconds to the rotating prism to rest after the side door had been opened!
• Even when the Interlocks are not defeated, the media Loading Rollers located inside the loading drawer may be rotating. Keep your hands off the running loading rollers!
• Clear the film stuck in the machine.
• Close the side doors, use a screwdriver to fasten the doors' screws.

If the interlocks are defeated, the optical and mechanical assemblies of the imagesetter remain energized and hazardous; in addition to the electrical and mechanical hazards, up to 5 milliwatt of laser power at a wavelength of approximately 650 nanometer may be present at the Static optic assembly output connector, Dynamic optic assembly, optical Fibers, optical fiber Connector and on the inside of the imagesetter Drum; up to 10 milliwatt of laser power at this wavelength may be present inside the Static optic assembly.

THIS LASER RADIATION IS HAZARDOUS TO THE EYE AND SKIN.

DANGER! Avoid exposure to the beam and its reflections!

Warning Labels

Notify CreoScitex service personnel if warning labels are damaged.