HP LASERJET 4SI DRIVER

Similar models of earlier HP laser printers had this feature, but it became less common with the later models. However, any printer mechanism is subject to wear and degeneration, and typically printers still in use have now seen long service the machine being discontinued with the introduction of the Laserjet 5 in There are a couple of solenoids at the paper tray input mechanism that have felt pads designed to cushion them when they snap on, and the glue holding these pads in place can migrate to the surface. A feature of the 4Si particularly dear to graphic designers was the straight paper feed. Problems such as paper jams can be fixed by replacement of pickup rollers located under the toner cartridge, replacement of the fuser door, checking if the paper separation paws are not bent, and replacement of the delivery rollers. In many cases, the delivery rollers upper and lower in the upper or final stage of the paper exit are worn or unserviceable. This delays the release of the solenoid, which causes the paper to start feeding slightly late.

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Similar models of earlier HP laser printers had this feature, but it became less common with the later models. This problem is fixed by removing h; felt pads, cleaning off the adhesive isopropyl alcohol works welland placing some electrical tape or other material to provide a cushion for the solenoid.

HP Laserjet 4Si

However, any printer mechanism is subject to hpp and degeneration, and typically printers still in use have now seen long service the machine being discontinued with the introduction of the Laserjet 5 in This is not a feature of lasfrjet original Laserjet 4. Replacement kits for these rollers are easily obtainable and can solve the problem. The engine has a high monthly duty cycle 20, pages and it is not uncommon to find units still functioning well after a million or more page impressions.

In many cases, the delivery rollers upper and lower in the upper or final stage of the paper exit are worn or unserviceable.

Views Read Edit View history. Problems such as paper jams can be fixed by 4s of pickup rollers located under the toner cartridge, replacement of the fuser door, checking if the paper separation paws are not bent, and replacement of the delivery rollers.

These models also feature a W power saving stand-by mode, which was not included in the original Laserjet 4.

North America, Europe and Asia. The 4LC was the “first printer designed exclusively for the Chinese market”, [5] and was released by HP in April The LaserJet 4 series had small printers in the range: Printers that exhibit the “accordion” or “washboard” paper jam problem with the paper tightly 4xi or folded in the exit paper path often behind the rear access door generally have problems with the paper exit mechanism.

A quality abrasive is needed to lsserjet no particles are shed into the mechanism. This delays the release of the solenoid, which causes the paper to start feeding slightly late. A feature of the 4Si particularly dear to graphic designers was the straight paper feed.

Unfortunately, accessing the solenoids requires disassembling most of the input mechanism. This saved the company millions in tariff and shipping costs as well as weeks in time-to-market. This process was used for low-end printers 4L, 4P, etc.

Retrieved from ” https: It prints eight pages per minute, and the user cannot extend the feeders. From Wikipedia, the free encyclopedia.

HP LaserJet 4si Printer| HP® Official Store

Besides the usual malfunctions common to laser printers with worn rollers or accumulated paper dust, older IIISi and 4Si printers eventually exhibit a “phantom paper jam. By using this site, you agree to the Terms of Use and Privacy Policy.

The tell-tale symptom is a print job with a top margin that shrinks from page to page. This can be repaired by replacement of the front fuser door. Another alternative is to use coarse quality abrasive paper such as those used by belt sanders to roughen the surfaces of the rollers. However the driver for the HP LaserJet 4 exists in most, even older, software products and is a popular substitute driver for other PCL compatible printers.

There are a couple of solenoids at the paper tray input mechanism that have felt pads designed to cushion them when they snap on, and the glue holding these pads in place can migrate to the surface.

HP Computer Museum

The engine over all is reliable. HP LaserJet printers Computer-related introductions in The error accumulates with each page printed, and eventually the paper is entering the mechanism so late that the printer believes that a jam has occurred. This page was last edited on llaserjet Septemberat The 4 series has various models, including the standard LaserJet 4 for business use, the 4L for personal use laseejet the 4P for small businesses.