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Scanner lock indicated - HP LaserJet 4730 MFP Printer

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Chris Coughlin

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There is a slider under the scanner unit or on the top right rear of the top of the printer. switch the other way and it should work. Good Luck

Posted on Jan 13, 2014

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Canon image RUNNER 2520 error is E000110


Failure of the Scanner Motor (M21)
The Scanner Motor (M21) speed lock signal does not indicate a locked state a specific period of time after the Scanner Motor (M21) has been started.
* The same condition is detected after the error retry is performed.
1.Check the cable.
2.Replace the Laser Scanner Unit.
3.Replace the DC Controller PCB (PCB4).

Jan 09, 2018 | Canon Office Equipment & Supplies

1 Answer

Canon 2525 error 000110 what is soulotion


Failure of the Scanner Motor (M21)
The Scanner Motor (M21) speed lock signal does not indicate a locked state a specific period of time after the Scanner Motor (M21) has been started.
You will have to do the following:
1.Check the cable. 2.Replace the Laser Scanner Unit. 3.Replace the DC Controller PCB (PCB4).

Nov 11, 2016 | Canon Office Equipment & Supplies

1 Answer

My workcentre PE 220 scanner locked . How can I scanner unlocked? Because there is no button in scanner???


Rick Kasper's solution is a good start. There is no mechanical lock for the scanner head (below the glass plate upon which the material to be copied may be placed).
The "scanner" in this context is the optical head that slides along a rail below the glass plate. Its movement from the home position is monitored by a photo transistor. If the scanner head fails to release from its park position under the left hand window as it should, including during the power-up sequence, the failure message will appear.
If you hear a fairly loud whining sound (from the stalled scanner head drive motor) during the power-up sequence followed by the "scanner locked" warning, it indicates that the scanner head is hung up mechanically in its park position below the left hand scanner glass. Verify this by opening the Automatic Document Feeder (ADF) before powering up and note lack of movement of the scanner head assembly. Following the sequence outlined in the service manual, remove the scanner + ADF assembly, open the scanner assembly and move the scanner head on its rail to free it up. Take care to reassemble the scanner head with the white nylon slides properly placed on either side of the head.
If however, during the power up sequence you do not hear the whining noise, it is a sure indication that the motor has either failed or that no drive power is applied, but this is rare compared to mechanical hang-up.

Sep 21, 2011 | Xerox WorkCentre 220 All-In-One Laser...

1 Answer

How do I unlock my scanner?


Channel Lockout You can lock out a channel so it is not scanned. Channel Lockout does not erase the frequency from the channel. You can lock out up to 50 channels, including the Priority channel.
Lockout information is retained in the memory when the scanner is turned off.To Lock out a Channel
Example: Suppose you want to lock out Channel 2 because it stops on transmissions you don't want to hear.Press LOCKOUT when the scanner stops on Channel 2.The scanner locks out Channel 2, Then it immediately advances to the next channel that is not locked out, and resumes scanning.In the Manual mode, press LOCKOUT to lock out the displayed channel. Pressing LOCKOUT does not advance to the next channel in Manual mode.L/O appears in the display to indicate the displayed channel is locked out.Whenever you want to search for channels that are locked out, press MANUAL repeatedly to go through all 50 channels. If a channel is locked out, L/O
appears in the display.Restore a Locked Out Channel To unlock a channel so that it can be monitored during scanning:1. Press MANUAL repeatedly to find the locked out channel.2. Press LOCKOUT again to unlock the displayed channel. L/O no longer appears in the display.Restore All Locked Out Channel To unlock all channels, you must be in the Manual Mode.1. Press MANUAL.
2. Press and hold LOCKOUT to unlock all channels. The L/O indicator goes out on any channel previously locked out.

Sep 18, 2011 | Uniden BC248CLT Base Scanner

1 Answer

BC72XLT scanner does not stop on some programmed channels while scanning. My other scanner will read the transmission. The numbers indicating banks 1 and 3 aare not visable during scan, are they locked...


what it is because that your other banks are locked out and thats why it by passes your frequencies...unlock your banks and it will stop on the transmissions...

Apr 01, 2011 | Uniden BC72XLT Handheld Scanner

2 Answers

WHAT DOES A L1 MEAN


The L1 is indicating a scanner lock.

1. Turn machine off.
2. Make sure the scanner lock is unlocked. This is a clear plastic knob. (it is located on the left hand side of the machine under the document glass in the copy exit area - check your manual for a picture.)
3. Turn machine back on, watch scanner to see if it moves.
4. Try a copy.
5. If you still get an L1 then it might need service because the scanning bar is jammed.

This also is a fix if you are getting blank copies.
Hope that helps...

Jun 23, 2008 | Ricoh 3310LE Copier

1 Answer

Trouble shooting


The "car sound" could be an indication that the scanner is locked. Check the lock switch on the bottom of the scanner. Move the switch back and forth a few times and then leave it in the locked position. Another possibility is that you are scanning heavy items such as books. If too much weight is placed on the scanner glass, then pressure could be enough to prevent the scanning element from moving as it should.

The code 201 sometimes can indicate a power issue...meaning the scanner is not getting enough power. Try connecting the usb cable to a different port on the computer (preferrably directly to the computer and not through a USB hub).

May 20, 2008 | Canon CanoScan LiDE 25 Flatbed Scanner

1 Answer

Dear sir


The "car sound" could be an indication that the scanner is locked. Check the lock switch on the bottom of the scanner. Move the switch back and forth a few times and then leave it in the locked position. Another possibility is that you are scanning heavy items such as books. If too much weight is placed on the scanner glass, then pressure could be enough to prevent the scanning element from moving as it should.

The code 201 sometimes can indicate a power issue...meaning the scanner is not getting enough power. Try connecting the usb cable to a different port on the computer (preferrably directly to the computer and not through a USB hub).

May 20, 2008 | Canon CanoScan LiDE 25 Flatbed Scanner

2 Answers

Scanner locked


Is the scanner latch in the down position. Would be on the right side of the machine.
Take the covers back off and disconnect and reconnect all the connectors again. The ribbon cables can be fickle and take 2 or 3 attempts to get seated properly.
May need to take the scanner back off, reconnect everything and make sure nothing is caught or binding.
Make sure you didn't somehow leave one connector unplugged, slipped behind something.
And during reassembly. You may have caught one of the harnesses or cables and damaged them. those on the right side looking from behind.

Mar 03, 2008 | Xerox WorkCentre PE16 All-In-One Laser...

1 Answer

Unlock printer


Work the lock several times. Make sure there is not more than one lock. Dell web site Tech Support Look in on www.fixyourownprinter.com

May 31, 2007 | Dell A960 All-In-One InkJet Printer

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