HP LaserJet 6MP

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

An Er/04, Er/05, or Er/06 error message indicates a paper jam. Find and clear the printer of any jammed paper, or reset the printer if the printer has no jammed paper.
The printer is either low in toner, the density is set too low, or the Economode may be turned on. Remove the toner cartridge and shake it. This will redistribute the toner and often will temporarily solve the problem. However, this usually indicates it is time to install a new cartridge.
Er/66 displays

An Er/66 error message indicates the Wi-Fi hardware is not detected. To resolve the error, press the Resume button to continue without the Wi-Fi hardware or turn off the printer, wait for 30 seconds, and then turn on the printer. If the problem persists, contact HP Customer Support.

The Error Code 6 means that there was an issue communicating with the Google Play app on the phone (various possible reasons). 1) Reboot the device and try the purchase again.
If you see “Scanner Error 6” on your control panel for the M375 or M475, please check to see what version of firmware you are using (click the Information icon (blue circle with “i” in it) on the control panel to display the firmware version). If it is older than 20120626, you will want to upgrade your firmware.
Most printers will stop working when they`re out of paper, ink or toner, or if the unit detects an issue with the ink or toner cartridge. When this occurs, you might receive an error message or notice blinking green or amber lights on your printer.
This error is primarily caused by a transfer alienation failure in which the ITB is stuck and unable to rotate, the SR9 sensor (the primary transfer roller disengagement sensor) has gone bad or the fuser drive assembly has failed.
Er/35 displays, the Toner Reload indicator blinks quickly, and an Alert triangle displays on the Toner Level indicator. Debris in the toner reload port is preventing the printer from connecting to the Toner Reload Kit. Remove the Toner Reload Kit, clear any debris from the reload port, and then reinsert the kit.
To clear the error manually push the UP, DOWN and PUMP buttons simultaneously, ensure the display clears before showing the temperature or error code again. If the display does not clear the reset was not executed correctly.
Communication Fault (E6) Check the communication wire between indoor unit and outdoor unit to ensure if the wire is open circuited or short circuited and if the connector is loose.
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.
Error indicates it is Lower exhaust fan failure. 1. Check the fan on the lower left side of the product.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP Laserjet 2200, Tray 2 Pickup Problem, Gears Clicking
ANSWER : Definitely not a solenoid problem. I’ve worked on tens of thousands of printers and never replaced a single solenoid. You probably knocked something loose when you installed the pickup roller. Maybe something to do with the gear on the end of the pickup roller shaft. You’ll need to take the gear assembly off to be able to see it.

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HP LaserJet 6MP

HP Laserjet 6MP wont feed paper
ANSWER : I had a similar paper pickup problem on laserjet 6mp. The printer would go through start-up sequence fine but when it received a print job you could here the main gears/rollers turning but no clicking from paper pickup solenoid, then eventually error lights would come one . I incorrectly assumed it was an error with the paper pickup mechanism and wasted a whole day taking the printer apart and replacing the paper pick mechanism. Long story short, if I had bothered to figure out the secondary error light codes from the start, I would have realized it was just a bad fuser and would not have wasted so much time.

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HP LaserJet 6MP

HP Color Laserjet 3800 problem when printing color
ANSWER : Do a cold reset

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HP LaserJet 6MP

evenly spaced horizontal lines on hp laserjet III printout
ANSWER : The lines would be a toner cartridge problem. Which paper tray? The MF tray or the optional paper cassette?

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HP LaserJet 6MP

HP Laserjet M3035xs RFU Upgrade
ANSWER : There’s no way.

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HP LaserJet 6MP

How to copy a card slot in HP laserjet 4250N
ANSWER : None that I know of, using a computer is likely your best option but I never attempted it.

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HP LaserJet 6MP

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP LaserJet 6MP

HP Laserjet 4200 50.2 Fuser error
ANSWER : if you are using a good fuser the next part to try would be low voltage power supply

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HP LaserJet 6MP