Preliminary Operating Checks; Pre-Troubleshooting Check List - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
7"2. PRE"TROUBLESHOQTING PROCEDURES
Preliminary Operating Checks
Prior to troubleshooting a specific printer problem, the service representative should ensure that
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The printer is instiled on a solid, level surface (refer to Chapter 3, Section 3-2, of this manual).
The line voltage providing power to the printer does not vary more than 10% from the nominal
rated value as specified on the Power Wting label.
The operating environment for the printer is within the temperature and humidity
specifimtions listed in Chapter 1, Section 1-3, of this manual.
The printer is operated in a well-ventilated area.
The printer is not located in a hot or humid area (near water taps, boilers, or humidifiers), a
cold area, near open flames, or in a dusty situation.
The printer is never exposed to ammonia gas such as that produced by diazo copiers or office
cleaning materials.
The printer is not exposed to direct sunlight at any time during the day.
The customer is using media as specified in Chapter 2, Sections 2-4 through 2-6, of this manual.
The customer is not using a refilled EP-S Cartridge and has removed the EP-S Catiridge
shipping seal.
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The printer's scanner motor and main motor start when the printer is switched
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on and every time the printer receives a print job. This explains the motor noise
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heard at these times. Mso, about every 30 minutes the Main Motor rotates the
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Fusing Roller to make it last longer. This is a normal part of printer operation.
Pre-Troubleshooting Check List
The "Pre-Troubleshooting Check List" on the following page is designed to help resolve
user-responsible problems before they become service dls.
Hint
Photocopy the "Pre-Troubleshooting Check List" and place it near your telephone
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for quick reference.
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