In this article I’ll discuss the variety of common service related issues in the early HP 4000 series printer family. You may be wondering why I’m focusing on these older printer models.  In my opinion, next to the HP 4 and 5 series, the HP 4000 series is one of the best lines of printers ever made. Many of these machines are still in the field and, due to age, some of these problems are becoming more frequent. Because these machines have become “more repairable” over the last year since the price on the parts has drastically dropped and the cost of the toner cartridges have gotten lower, they are some of the cheapest machines to run given the cost per page. So for your customers who are thinking about how they can get the most for their money, these machines offer what they are looking for.

NOTE:  Almost all the part numbers listed in this article are for the 4000 series. The 4100 uses different part numbers for the feed rollers, pick up and feed assemblies, and the paper size board is different on some of the models given the extra feed trays. Get the 4100 printer specific part numbers here

Let’s take a look, then, at some of the common errors.  Continue Reading


Lately, I’ve been receiving more calls on the HP small upright color lasers due to poor print quality. I have found that, with most of these lower end HP printer models, the customer doesn’t want to put a lot of money into repairs.

In this article I will focus mainly on the HP 2600 and 2605 because HP doesn’t explain how to remove the laser/scanner in the service manual. In other models, like the HP 2700 and HP 3000 series printers, while they explain in the service manual how to remove the laser/scanner, they don’t tell you how to clean it out once it’s removed.  So I will explain what to look for and how to go about cleaning this so you don’t have to replace it.  Continue Reading

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