Unfortunately, accessing the solenoids requires disassembling most of the input mechanism. Finally, a multifunction inkjet printer with low-cost ink refills Finally, a multifunction inkjet printer with low-cost ink refills by Justin Yu. Headphones by David Carnoy Dec 17, There are also PostScript variants of these machines with the ‘4M’ designation, where M stands for, but is not limited to, usage with an Apple Macintosh. Laptops by Dan Ackerman Nov 26, The tell-tale symptom is a print job with a top margin that shrinks from page to page.

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Unusually thick paper could be run through the printers without jamming by setting the output tray to “Lower face lasetjet ” and having it come out the back of the printer. Views Read Edit View history. 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.

Expansion Slots Total Qty. This can be repaired by replacement of the front lzserjet door.

HP Computer Museum

And can we talk mail-order mattresses? Replacement kits for these rollers are easily obtainable and can solve the problem. Interface Required Connector Type. The tell-tale symptom is a print job with a top margin that shrinks from page to page.

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Printer: HP LaserJet 4Si | OpenPrinting – The Linux Foundation

The 4LC was the “first printer designed exclusively for the Chinese market”, [5] and was released by HP in April This problem is fixed by removing the felt pads, cleaning off pronter adhesive isopropyl alcohol works welland placing some electrical tape or other material to provide a cushion for the solenoid.

A quality abrasive is needed to ensure no particles are shed into the mechanism. Limited warranty – parts and labor – 1 year – on-site.

Printer Fonts Font Included Type. Miscellaneous Rack Mounting Kit.

HP LaserJet 4

This delays the release of the solenoid, which causes the paper to start feeding slightly late. Media Handling Media Path Type.

Power supply – integrated. There are also PostScript variants of these machines with the ‘4M’ designation, where M stands for, but is not limited ph, usage with an Apple Macintosh.

Microsoft Windows NT 3. The LaserJet 4 series had small printers in the range: Max Media Size Custom. Be respectful, keep it civil and stay on topic. A feature of the 4Si particularly dear to graphic designers was the straight paper feed.

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In many cases, the delivery rollers upper and lower in the upper or final stage of the paper exit are worn lasdrjet unserviceable. Discussion threads can be closed at any time at our discretion. This page was last edited on 26 Septemberat Unfortunately, accessing the solenoids requires disassembling most of the input mechanism. Another alternative is to use coarse quality abrasive paper such as those used by belt sanders to roughen the surfaces of the rollers.

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.

Workgroup printer – laser – monochrome. Retrieved from ” https: System Requirements OS Required. Printer Output Max Speed. Media Feeder Max Format.

Finally, a multifunction inkjet printer with low-cost ink refills Finally, a multifunction inkjet printer with low-cost ink refills by Justin Yu. We delete comments that violate our policywhich we encourage 4sk to read.