Why does my macbook pro often lose connection with the canon mx922?

why does my macbook pro often lose connection with the canon mx922? This happened with the HP printer as well.

This may answer your Bonjour questions:
http://support.apple.com/kb/PH11449
https://www.apple.com/support/bonjour/
Ciao.

Similar Messages

Why does my MacBook Pro not boot up with the Snow Leopard Disk?

I have erased the entire hard drive on a 2011 macbook pro that had snow leopard on it. I was corrupted. I not insert my Snow Leopard Disk and the machine will not boot. I chose target mode to erase the hard drive from my mac book pro with Mt. Lion on it.
Thank uou for any help,
Ken

Target mode? Is there a second computer involved? Why not insert the Snow Leopard disc in the computer on which you wish to install and hold down the C key to boot from it?
If the disc came with a different computer it will not boot another model. Retail discs also may not boot all model computers, even those that came with the same major version. For example, some MBPs came with 10.6.6 but a retail disc may only be 10.6.3.

Why Does Retina MacBook Pro (2012) Suddenly Hibernate With Lid Open?

I'd like to know why my Retina MacBook Pro (2012) at certain times suddenly go into Hibernate mode when I'm actively using it with the lid open and what I can do to prevent this.
I know this is hibernate because of what I see in the Console logs and the fact that I can't trigger a wake by using the keyboard/trackpad/mouse. Only the power button causes it to wake up.
This usually happens when I wake it from sleep and plug it into an external monitor via HDMI to HDMI connection.   The lid is open and I use both displays.    This happens about 30 seconds to a minute after I wake from sleep. At the time I'm not plugged into the power supply because I believe it's generally a good idea to let the batter drain and the recharge it. The last time this happened it was about 35% to 40% charged.
Hardware Overview:
Model Name:    MacBook Pro
Model Identifier:    MacBookPro10,1
Processor Name:    Intel Core i7
Processor Speed:    2.6 GHz
Number of Processors:    1
Total Number of Cores:    4
L2 Cache (per Core):    256 KB
L3 Cache:    6 MB
Memory:    8 GB
Software:
OS X Yosemite (all latest updates installed)
{some 3rd party software}
Let me know if you need more information.
For the gory details of what I see in system.log, read on:
This is about the time the hibernate happens. I've replaced my laptop's name with {COMPUTER NAME}
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>: notification observer: com.apple.iChat   notification: __CFNotification 0x7f87d5210a90 {name = _NSDoNotDisturbEnabledNotification}
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>:    NC Disabled: NO
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>:   DND Enabled: YES
Mar 20 18:29:26 {COMPUTER NAME} identityservicesd[375]: <IMMacNotificationCenterManager: 0x7f87d510c9e0>: Updating enabled: NO   (Topics: (null))
Mar 20 18:29:26 {COMPUTER NAME} WindowServer[218]: device_generate_desktop_screenshot: authw 0x7fba81c2e940(2000), shield 0x7fba81c35bd0(2001)
Mar 20 18:29:27 --- last message repeated 1 time ---
Mar 20 18:29:27 {COMPUTER NAME} WindowServer[218]: device_generate_lock_screen_screenshot: authw 0x7fba81c2e940(2000)[0, 0, 1920, 1080] shield 0x7fba81c35bd0(2001), dev [1920,1080]
Mar 20 18:29:27 {COMPUTER NAME} com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.user.502): Service "com.apple.xpc.launchd.unmanaged.loginwindow.72" tried to hijack endpoint "com.apple.tsm.uiserver" from owner: com.apple.SystemUIServer.agent
Mar 20 18:29:30 --- last message repeated 1 time ---
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: PM response took 4741 ms (30, powerd)
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: ARPT: 1632.007298: AirPort_Brcm43xx::powerChange: System Sleep
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: ARPT: 1632.007302: wl0: powerChange: *** BONJOUR/MDNS OFFLOADS ARE NOT RUNNING.
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x1b014fb000, 0x19000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0xd8ec7000, 0x19000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x1369ac0000, 0xe000000]
Mar 20 18:29:30 {COMPUTER NAME} kernel[0]: [0x0, 0x0]
Mar 20 18:29:31 {COMPUTER NAME} kernel[0]: hibernate image path: /var/vm/sleepimage
And when I wake it up by repeatedly pressing the power button:
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_newruntime_map time: 0 ms, IOHibernatePollerOpen(), ml_get_interrupts_enabled 0
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: IOHibernatePollerOpen(0) 19 ms
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_machine_init reading
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: PMStats: Hibernate read took 355 ms
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: hibernate_machine_init pagesDone 212628 sum2 2c66736a, time: 355 ms, disk(0x20000) 447 Mb/s, comp bytes: 57749504 time: 55 ms 985 Mb/s, crypt bytes: 157388800 time: 67 ms 2228 Mb/s
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Wake reason: EC.PowerButton (User)
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: vm_compressor_fastwake_warmup (7450 - 12878) - starting
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Previous sleep cause: -60
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: Previous shutdown cause: 5
Mar 20 18:30:09 {COMPUTER NAME} kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 0 us

This happened again at about 31% power, again unplugged.   Previously, I had plugged in the power before pressing the power button, but this time I pressed the power button before plugging in. The display showed me the out of power icon. Only on plugging it back in was I able to power up the laptop again.
Is it possible there's a bug either with the displayed power or how remaining power is detected?

Why does my Macbook pro 1226 not work with my new Apple USB Superdrive? USB works otherwise but when I connected my new drive it clicks and then thats it. I put the DVD in but it doesn't grab it or attempt to access it at all.

Hi Everone,
I purchased my 2007 Macbook pro 1226 online for a song and other than this annoyance i've been very satisfied. But lately i'm missing the use of my internal super drive to view DVD's (Always seem to miss what we don't have Grrr). So I figured I would purchase a brand new USB Apple Superdrive, problem solved right? NOPE. Now I've found that my pro doesnt seem to like it one bit and all USB's work fine so it's not that.
I will be disapointed if this can not be resolved, My Macbook is otherwise perfect and better than any new PC I've ever had.
Can Someone try and help me please?

I do know that for new MBPs there is a no questions asked return policy if returned within 14 days of purchase. I am not certain if that applies for peripherals. If you have not damaged it, I would think that the odds are on your side if you return it for a refund. Obviously you have a good reason for the return.
Then it may be a good reason to purchase a new MBP. In any event, call the store and ask.
Ciao.

Why does my macbook pro keep shutting down with a charged battery

Why does my Mac book pro keep shutting down? I lose everything I am working on when it shuts down help

kva,
which model MacBook Pro do you have? Is it running Mac OS X 10.5.5? If not, which version of OS X is currently installed on it?
Are you running on battery when it shuts down, or are you running on AC when it shuts down, or does it happen in either case? Which app are you working in when it shuts down? Does it happen only in that app, or does it happen no matter which app you’re working in?

Why is my MacBook Pro safari not connecting to the internet?

The past week I have been trying to use Safari on my MacBook Pro but it keeps saying Safari can't verify the identity of the website. I am not sure how to get rid of the popup, so I can continue to use the website. What do I need to do to resolve this?

Which website? Is it one in particular, or dose it appear on every website?
When you open Safari, does it always open with this site?

Why does my MacBook Pro battery discharge even when the charger is plugged in?

I've been having a myriad of problems with my MacBook Pro's battery. The main problem is that when in use, the battery steadily discharges often at a very quick rate even when I have the charger plugged in, the only way I can get it to recharge is to close the lid or turn the computer off, however, it has recently started to take a very long time to recharge (I left it for 12 hours and it charged from 0% to 60%). I also noticed that while off, the charger light occassionaly goes green and then back to orange every few minutes. When I manage to get the battery up to 100% charge, it usually stays at 'Charged' for around 5 or 10 minutes and then it just comes up with 'Calculating...' as it slowly discharges, it also occassionaly claims that it is recharging and that it will take around 6 to 8 hours but it only charges about 1% of the battery and switches to 'Not charging'. Also, sometimes the charger light wont come on when it is plugged in and the Mac refuses to acknowledge it is plugged in for some time.
I took it to the Apple Store a few months ago and one of the Geniuses reset the System Management controller and did a quick hardware test which seemed to fix it but the problems returned soon after, I cannot enter the hardware test screen and subsequent attempts to reset the SMC have done nothing, he also tested the charger and tried it with another charger but it did not help. Hope you guys can help me as I am completely stumped by this and its beginning to annoy me as my Mac is becoming almost unusable.
System Specs:
MacBook Pro (13inch, Mid-2010)
Processor: 2.4GHz Intel Core 2 Duo
Memory: 4GB 1067MHz DDR3
Graphics: NVIDIA GeForce 320M (256MB)
Hard Drive: Toshiba 250GB (50GB devoted to Windows partition)
Software: Mac OS X Lion 10.7.2 (Also have a partition containing Windows 7 Ultimate)
Battery Information (from System Information):
Model Information:
Serial Number:          9G02903MAD3NB
Manufacturer:          DP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          201
Hardware Revision:          2
Cell Revision:          164
Charge Information:
Charge Remaining (mAh):          509
Fully Charged:          No
Charging:          Yes
Full Charge Capacity (mAh):          5066
Health Information:
Cycle Count:          450
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -742
Voltage (mV):          10807
Notice, the amperage is in Negative while the computer is plugged in!

Battery condition says normal but cycle count is on the high side.
May be better off with a new battery.
Hope everything turns out right.

Why does my Macbook Pro screen go black when the charger is plugged in while using bootcamp?

While on bootcamp, my computer runs perfectly fine unless I have the charger plugged in. Once I plug it in the screen goes black and starts to charge. I know the computer is still on because I can hear audio from videos if one is playing while I plug in the charger. Once I unplug it the screen comes back on. This makes it so I am unable to work on my computer with the charger plugged in. This is a new problem and did not start once I installed windows 7, it used to work fine. Any suggestions?

Thank you for your suggestion! It helped me with this issue as well. My problem was that I was that Windows had started but wasn't logged in yet--the brightness keys didn't work on the windows login screen. I had to log in to Windows, then plug in the power, then turn the brightness up.
Thanks again for the suggestion!

Why does my MacBook Pro and Mac Pro keep freezing?

Why does my MacBook Pro freeze?
MacBook Pro
2.4 GHz intel Core2 Duo
4BB 1067 MHz DDR3
OSX 10.6.8 Snow Leopard
I turned it on and I went to safari to look things up. Safari froze and then the whole thing became unresponsive - the mouse could move the cursor but it couldn't open any programmes.
Tried safe boot several times. No help.
Tried to repair disc permissions. The first time it got a little way then said 'user stopped repair' or something - though I didn't touch it. Tried again it got all the way through and said 'repairs complete'. But no help.
Couldn't clear cache etc as couldn't get to the relevant part to do it.
Opened in single user mode. Ran the fsck -fy thing twice. First time it said both “The volume appears to be OK” AND “FILE SYSTEM WAS MODIFIED.” In 2nd run it just said “The volume appears to be OK”. No help.
Booted it up from the Superduper bootable backup version on a USB external drive. It seemed to boot up ok but then tried to click on something and the same thing happened - spinning beach ball and it just hung.
Erased hard drive and reinstalled snow leopard but it just does the same thing. Suggesting a hardware issue not software but...the Eerie thing is, we tried backup version on boyfriends Mac Pro and it worked fine on there but 24hrs later his Mac Pro has got exactly the same screen freezing, unresponsive issue. Could this suggest there's something evil lurking on my back up? Can't get an appointment at Genius Bar until next week and need to get some work done, so hoping someone might have some ideas?
Cheers
Kerry

KaiDonald wrote:
... does Apple products work much better with using Apple routers?
While a genuine Apple router is likely to result in success, the reason for having one instead of another product is that it eliminates a lot of uncertainty. For example, we do not know the model D-Link product you have so no one is in position to speculate what the problem might be. Also, it makes support on this forum easier since there are only three AirPort models to choose from and they all work more or less the same.
Generally speaking your iPods, iPads, MacBooks, and AppleTV ought to work with any router though, provided it is fairly recent and meets accepted industry standards. If in doubt you can purchase an AirPort Base Station, which comes with 90 days of free telephone support. If it does not result in any improvement for you, you can always return it for a complete refund. The return period is 14 days and be sure to keep all material - receipt, box, manuals, etc...
If you elect this option be sure to follow its installation instructions, the most important of which is to power down your modem prior to connecting the AirPort Extreme, Express, or Time Capsule. All your other equipment will need their network settings adjusted to "forget" the D-Link network and connect to the new one.

Why does my MacBook Pro spit out a CD

Why does my MacBook pro eject a CD without downloading it?

You rip a CD. You download something over a network connection.
Could be doing it because the CD is bad. Test the CD in another computer.
Could be doing it because the drive is bad or dirty. Try a drive cleaning disc but don't hold out too much hope. Try other CDs in the drive to see if it is the drive or that particular CD.
As with any issue of this sort you have to test each step and component in the process individually.

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Hmm, good luck then!
I'm pretty much exactly on the opposite side of the planet, but I've been to Vermont and remember its rural beauty well. However, I can't imagine you having the only Internet connection within a reasonable radius (where "neighbors" hanging off the same ISP don't count). Uh, that note only if your wired connection to the router produces no good result, either...

15" MacBook Pro randomly loses connection to my AirPort Express wi-fi network.

My 15" MacBook Pro randomly loses connection to my AirPort Express wi-fi network. I have to switch off wi-fi on my Mac then switch on again to reconnect. Any reason why this random occurrence keeps happening which never happened before? Any solutions and fixes would also be welcomed.
Jazz

In the airport utility, you can alter the radio modes... and change the channels from automatic to a manual one.
Hold down the Option key, and click on your wifi icon, it will tell you what channels are currently being used on your OSX.

What is application memory and why does my macbook pro keep running out of it?

what is application memory and why does my macbook pro keep running out of it?

There is excessive swapping of data between physical memory (that is, the memory chips on the logic board) and virtual memory (one or more files on the startup volume.) That activity is relatively slow and causes the whole system to be less responsive. It can happen for two reasons:
          A long-running process with a memory leak (a kind of bug)
          Not enough memory for your usage pattern
Please note that if the cause is a memory leak, installing more memory will not help. That's likely if you already have more than 4 GB of memory. Tracking down a memory leak can be difficult, and it may come down to a process of elimination.
These instructions are for OS X 10.9 and later. Some details may be slightly different for earlier versions of OS X.
When you notice the swap activity, open the Activity Monitor application and select All Processes from the View menu, if it's not already selected. Select the Memory tab. Click the heading of the Real Mem column in the process table twice to sort the table with the highest value at the top. If you don't see that column, select
          View ▹ Columns ▹ Real Memory
from the menu bar.
If one process (excluding "kernel_task") is using much more memory than all the others, that could be an indication of a leak. A better indication would be a process that continually grabs more and more real memory over time without ever releasing it. Here is an example of how it's done.
The processes named "Safari Web Content" render web pages for Safari. They use a lot of memory and may leak if certain Safari extensions or third-party web plugins are installed. Consider them prime suspects.
Another process often implicated in memory leaks is "inkjet4" or "inkjet8," which is a component of the HP printing software. If it's present, force-quit the process in Activity Monitor to solve the problem temporarily. Empty the print queues in the Printers & Scanners preference pane (which has a slightly different name in each recent version of OS X.) If you don't use an HP printer, reset the printing system. Otherwise, if the problem is recurrent, update the software (which may not help) or contact HP support.
"Wired" memory should be a small part of the total. That memory is not swapped, but it makes less physical memory available which may then result in swapping. If you have a lot of wired memory, that's usually an indication of a memory leak in a third-party program that modifies the operating system at a low level. Ask for guidance in that case.
If you don't have an obvious memory leak, your options are to install more memory (if possible) or to run fewer programs simultaneously.
The next suggestion is only for users familiar with the shell. For a more precise, but potentially misleading, test, run the following command:
sudo leaks -nocontext -nostacks process | grep total
where process is the name of a process you suspect of leaking memory. Almost every process will leak some memory; the question is how much, and especially how much the leak increases with time. I can’t be more specific. See the leaks(1) man page and the Apple developer documentation for details.

Why does my MacBook Pro make background music and video quieter when I am on FaceTime?

Why does my MacBook Pro make background music and video quieter when I am on FaceTime? When my girlfriend and I are trying to watch a movie on Netflix together while on FaceTime my MacBook Pro always decreases the volume of any background sound on my computer so I can barely hear it. Is there a way to fix this? Thank you!

Have the same issue too. Apple can you please change this annoying feature. You are making long distance relationships more difficult.
I like how Facetime was with the old iOS, where nothing was dimmed. OR at least maybe if you could give users the option to turn on or off dimming of facetime.

Why does my macbook pro "goes to sleep" when charging?

Why does my macbook pro "goes to sleep" when charging? It is working fine without charging but once I attach the charger to my laptop, it just blacks out or goes to sleep mode and I can't wake it up unless I unpluck the charger.
I read from threads that it is a logic board problem....How do I solve this problem?

Try an SMC reset. Follow the method for "a battery you should not remove yourself."
http://support.apple.com/kb/ht3964

Why does my macbook pro often lose connection with the canon mx922?

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