HP Laserjet Error Codes 20 - 49

Message on printer Display Panel What it means. What to do. Additional comments.
20 INSUFFICIENT MEMORY The printer received more data than can fit in available memory. You might have tried to transfer too many macros, soft fonts, or complex graphics. Press GO to print the transferred data (some data might be lost). Advise the customer to simplify the print job or install additional memory
21 PAGE TOO COMPLEX The data (dense text, rules, raster or vector graphics) sent to the printer is too complex Press GO to print the transferred data. (Some data might be lost.) Advise the customer to simplify the print job. More memory might help.
40 EIO x BAD TRANSMISSION The connection has been broken between the printer and the EIO card in the specified slot. (Data loss might occur in this situation.)
  • Press GO to clear the error message and continue printing.
  • Reseat the EIO card in slot [X].
41.3 UNEXPECTED PAPER SIZE The printer detected a media size different from what it was expecting. This is typically caused if two or more sheets stick together in the printer or if the tray is not properly adjusted.
  • Reload the tray with the correct print media size.
  • Ensure that media in the tray is loaded under the front and back tabs.
  • If you are printing from tray 1, verify that the correct paper size is selected in the control panel.
  • If you are printing from tray 2, 3, or 4, verify that the three paper-size adjustments (length guide, width guide, size-selector switch) on the paper tray have been made correctly. Make sure the media is under the corner tabs.
  • After performing the actions above, press GO. The page containing the error will automatically be reprinted if jam recovery is enabled. (Or, you might want to press CANCEL JOB to clear the job from the printer's memory.)
 For the 4000, 4050, and 4100 series the paper feed assembly could be bad. Also the paper feed/registration sensors could be knocked out of place. On EX engine printers this error is caused by a bad PIU (paper input unit).
41.5 PRINTER ERROR The media reached the PS102 or PS103 sensor too early.
  • This error usually occurs with smooth media, such as transparencies or labels. If the problem persists when using tray 1, load media one sheet at a time. If the problem persists when using trays 3 and 4, replace the feed and separation rollers.
  • Check sensors PS102 and PS103 for proper operation
 For the 4000, 4050, and 4100 series the paper feed assembly could be bad. Also the paper feed/registration sensors could be knocked out of place. On EX engine printers this error is caused by a bad PIU (paper input unit).
41.x PRINTER ERROR A temporary printing error has occurred. The page containing the error will automatically be reprinted. If the error persists: 1. Reseat the connections to the laser scanner and then to the engine controller board. 2. Replace the laser scanner. 3. Replace the engine controller board
49.XX PRINTER ERROR A firmware error occurred
  • Press CANCEL JOB to clear the print job from the printer memory.
  • Turn the printer off, and then turn the printer on.
  • Try printing a job from a different software application. If the job prints, go back to the first application and try printing a different file. (If the message only appears with a certain software application or print job, contact the software vendor for assistance.)
  • If the message persists with different software applications and print jobs, disconnect all cables to the printer that connect it to the network or printer.
  • Turn the printer off.
  • Remove all memory DIMMs or third-party DIMMs from the printer. (Do not remove the firmware DIMM in the lowest DIMM slot.)
  • Remove all EIO devices from the printer.
  • Turn the printer on.
  • If the error no longer exists, install each DIMM and EIO device one at a time, making sure to turn the printer off and back on as you install each device.
  • Replace a DIMM or EIO device if you determine that it causes the error.
  • Remember to reconnect all cables that connect the printer to the network or computer.
  • If the error persists, replace the firmware DIMM.
  • Replace the formatter.
 This error is usually caused by a bad formatter board.
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