Authorized Hewlett Packard Partner
Authorized Warranty Delivery Partner
Hewlett Packard Certified Technicians

For on-site repair

Toll free: 877-861-2413

Basic Troubleshooting Procedures

Prior to troubleshooting a specific printer problem, you should ensure that:

• The printer is being maintained on a regular basis.

• You are using acceptable media as specified in the User’s Manual.

• The printer is installed on a solid, level surface.

• The line voltage does not vary more than 10% from the nominal rated value as specified on the Power Rating Label.

• The operating environment for the printer and paper is within the temperature and humidity specifications.

• The printer is never exposed to ammonia fumes such as those produced by diazo copiers, or office cleaning materials.

• The printer is not exposed to direct sunlight.

• Non-HP components (such as refilled toner cartridges, font cartridges, and memory boards) are removed from the printer.

Laserjet 4

Laserjet 4 Plus

Laserjet 4M

Laserjet 4M Plus

Laserjet 4L

Laserjet 4ML

Laserjet 4P

Laserjet 4MP

Laserjet 4si

Laserjet 4si Mx

Laserjet 4V

Laserjet 4MV