HP LaserJet 4

How to Identify and Fix Common Problems ?

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The 41.3 Paper Size error happens when there is a mismatch between what the computer application asks for and what the printer can provide, and/or what the printer sees happening as paper passes through. If the paper takes too short or long a time passing over the printer sensors this error gets raised.
This error has nothing to do with the laser/scanner—it means “unexpected paper size.” The printer measures paper size two ways: The paper cassette has a set of ridges and/or levers usually found on the right side.
41.03 is often caused by paper being set to one size and another sent. It can also occur when the page does not feed past a sensor in the time alotted and the printer thinks it is a larger size.
A 49 error typically occurs when the printer attempts to perform an action that the firmware is not capable of performing or might not be designed to handle, for example: Printing files that include unsupported printer commands. Interfacing with a third-party solution that was not designed to work with the printer.
The error may occur when there is a communication issue between the formatter and the scanner. Turn the printer off and then back on to clear the error message. note: Performing this action will remove all custom configurations, settings, and files.
Damage or corruption of the printer drivers installed on the system can also cause “Printer not activated, error code 41. Users experiencing this issue need to completely remove the printer drivers installed on the system using the device manager and then reinstall the printer drivers.
In some cases the reason for error code 41.7 is that the rollers grabbing fresh paper are not sticky enough any more. In this case I used spray for climbing skins (e.g. colltex) to make them stickier again, and the problem was resolved.
The 41.2 error in the LaserJet 5Si, 8000, 8100 and 8150 is typically caused by high voltage arcing that disrupts the beam detect circuit. The most common cause of arcing is a bad connection to the transfer roller.
If you are seeing the 41.3 error on a LaserJet 4, 4Plus, or 5 series printer, and you find a blank sheet of paper in the path, your printer is probably having a failure with the solenoid on the paper feed assembly. This is becoming a common issue as these printers get older.
During a print job, the printer stops feeding pages, an E4 error displays and the Resume light blinks. This indicates that paper might be jammed inside the printer. Note: Paper jams can be real or false.
Turn the printer off, unplug the printer from the network/computer, clear any pending jobs from the print queue (on the computer), then reboot the printer to make the 49 error disappear. Then you can reconnect the network/computer cable and try printing again.
This is a rotational error on a fan. This fan is the located on the left hand side (when you are facing the front) and is the one located closer to the back.
When a 30.03. 30 error appears on the control panel, it indicates that there is an issue with the scanner. Turn off the printer. Turn the printer back on, and verify that the scanner moves.
Normally a 30.01 error is a paper jam in the document feeder. Id check the ADF sensors and look for anything that could be causing a false alarm by the printer. and here: /t5/Multifunction-and-All-in-One/HP-CLJ-CM4730-MFP-30-01-34-scanner-failure/td-p/5963917#.
23 or 30.03. 45 Scanner Errors. The resolution for either error is to, if preferred to send a firmware update, then replace the flatbed scanner assembly. It has been found that it is in most cases the internal lamp that has failed, but is not available through HP as a replaceable part.
Recommended action. Turn the printer off, wait 15 seconds and turn the printer back on (using the power switch located on the back of the printer). The error code should not appear again.
That error code translates to a tray 2 feed where the paper was detected as too long or too short. As tray 1 prints fine, you can rule out any sensor in the path that the manual feed takes.

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