Designjet 4000, 4500
HP Designjet 4000 & 4500 Repair Parts
The HP Designjet 4000 and Designjet 4500 series are highly serviceable plotters. The printers have resident diagnostic tests that take most of the pain out of troubleshooting.Common problems are worn carriage belts, trailing cable, and ink tubes (usually replaced together). These items are repairable by replacing the defective parts individually or by installing the maintenance kit. Most repairs are accomplished by printer technicians, however, a growing population of owners are effectively maintaining their own plotters by following troubleshooting procedures and part replacement instructions in the service manual. The economic advantages of self-maintenance are obvious.
Another troubleshooting method is to interpret system error codes which are displayed when many types of problems occur. The service manual lists possible causes of the problem by the respective error codes and suggests solutions, with the most likely solution being listed first.
Once an error code is understood, many easy repairs can be made by the user. Frequent user repairs are related to the ink system, such as replacing defective ink cartridges, print heads or the ink tube system.
Download the Designjet 4000 manual and/or Designjet 4500 manual here.

