IMac vs printer sharing

System Preferences Settings:
Firewall: "Allow only essential services" (recently changed from "allow all incoming connections")
"Printer Sharing" allowed in Firewall block below.
Print & Fax: Proper printer selected, Green button light "on", Printer in Idle and selected as "Default", "Share this printer": block check marked.
My IMac on and directly connected to printer via USB cable. (I have no problem printing.)
Problem: My wife in an adjacent room, using an Apple powerbook wirelessly connected to the printer, suddenly cannot print any document. If I reset my IMac Security Firewall settings to: "Allow all incoming connections," she is able to print, provided my IMac is powered up. My question is this:
Even though I had the firewall setting set to: "Allow only essential services," I never the less had "Printer Sharing" selected in the Firewall block below, why couldn't she print? Resetting the Firewall setting to: "Allow all incoming services" corrected the problem. Granted, it is "a problem solved, " but my curiosity is really "tweaked" as to what the difference is between the two settings, especially since "Printer Sharing" was specified in the Firewall block?? This is for all "geniuses." I would really appreciate an explanation as to why one setting wouldn't work and the other one worked fine!
jdm646

You may be interested in this Knowledge Base document.
Mac OS X 10.5 Leopard: About the Application Firewall

Similar Messages

Printer sharing across internet sharing

I hope I don't confuse everyone with this.
I have three computers—an iMac running Snow Leopard, an iMac running Lion, and a Mini running Leopard. The SL iMac has a printer plugged into it. The other two computers are across the house from it.
Those two computers are next to each other. The Lion iMac is connected to the Internet via WiFi. The Mini, which does not have wireless, is connected to the Internet via Internet Sharing over an ethernet cable to the Lion iMac.
Now here's the problem. I can print from the Lion iMac through printer sharing across to the SL iMac. However, I can't figure out how to print from the Mini. It won't find the SL iMac's printer. Enabling printer sharing on the Lion iMac lets the Mini see it as a 'printer,' but it won't print across to the SL iMac.
So with this setup, is it possible to print to the SL iMac from the wireless-less Mini?
Just to ward off possible non-workable solutions, rearranging the computers is not feasable right now. It is also not possible to connect the Mini directly to the internet via ethernet. My cable modem is actually in a near-inaccessable part of the house due to that being where the only cable plug is. I have a Time Capsule attached to it, which broadcasts my wireless signal that the WiFi computers can pick up. And no, I can't connect the printer to the Time Capsule—believe me, I tried. I don't want to have to start buying long cables and drilling holes if there's a simpler solution.
Thanks in advance.

If I switch to the discussed set up (Airport Extreme N router), will adding an AX in between at 15 feet help bridge the link between the G5's Airport extreme card and the living room's AX?
Yes. But I still think you should verify if Wi-Fi interference is the cause of your poor signal only 30' away from the AX before going out and purchase anything. Remember, you will tradeoff bandwidth performance for signal strength. With audio, this can be a negative factor.
If you can get a hold of a laptop, I suggest downloading a copy of iStumbler. Use iStumbler's Inspector feature (select Edit > Inspector from iStumbler's menu) to determine the Signal-to-Noise Ratio (SNR) at different points around your house, by performing a simple RF site survey. Within the Inspector, note the values for "signal" & "noise" at these locations. Start with the laptop near the AX, note the readings, and then, choose the locations between the AX and, finally, where you have the G5.
SNR is the signal level (in dBm) minus the noise level (in dBm). For example, a signal level of -53dBm measured near an access point and typical noise level of -90dBm yields a SNR of 37dB, a healthy value for wireless LANs.
The SNR, as measured from the laptop, decreases as the range to the base station increases because of applicable free space loss. Also an increase in RF interference from microwave ovens and cordless phones, which increases the noise level, also decreases SNR.
SNR Guideline
o 40dB+ SNR = Excellent signal
o 25dB to 40dB SNR = Very good signal
o 15dB to 25dB SNR = Low signal
o 10dB to 15dB SNR = Very low signal
o 5dB to 10dB SNR = No signal
If the SNR is 20dB+ at each of these locations, then you should be getting reasonable performance from your AirPort. If less, either try to locate the source of the Wi-Fi interference or try relocating the base station or the G5 until they are within a 20dB SNR range.

Printer sharing blocked by firewall

I have a new MacBook Pro and while it "sees" the Canon printer, i am unable to get the printer to be shown as online. My System on my iMac shows Printer Sharing: Blocked by Firewall. Is there a way to allow these two Macs to print wirelessly? Thank you! I'm running the current version of Yosemite on both.

Turn off the firewall. It serves no purpose on a private network behind a router.

Epson Stylus Pro 4800 Printer Sharing Broken

We have 2 Epson 4800 printers, each attached via USB to it's own dedicated iMac (Intel OSX 10.5.3 w/ Epson SPR4800 Universal Driver v3.66). The iMacs have printer sharing turned on. The printers are shared across our ethernet LAN to approx 50 other Mac workstations. Over half of those are PPC G5 PowerMacs the rest are Intel MacPro's. All are running OSX 10.5.3 with the latest Epson 4800 Universal Driver v3.66.
Our problem is most of the printer control menu items are missing from the print window when client Macs attempt to print from Photoshop CS3 using Photoshop color management.
We've tried unstalling and reinstalling the lastest universal driver both on the host iMacs as well as the client PowerMac's and MacPro's. Any comments on why this happening and suggested remedies would be much appreciated.

Yes, the menu items are not unavailable. We were already aware of the "Reveal Arrow" issue under OSX v10.5.3. The most important print menu items such as "Print Settings" and "Color Management" are simply not present. As previously stated we've already tried uninstalling and reinstalling the latest (v3.66) "Universal" print driver on both hosts and all of our client Macs. A resolution to this problem is very urgent as our semester begins this week and currently students can not print their next week assignments.

Printer Sharing with eMac, iMac, and iBook not working

Hello, everyone. I hope you guys can help me out with this:
I have an Epson Stylus CX4600 hooked up to my eMac via USB. My eMac prints fine with it. The eMac is getting its internet via an Ethernet wire going downstairs into my Linksys Router, which sends my Shaw internet to my iBook, my iMac, and my eMac.
I want to allow the iMac and iBook to access the printer over the network directly, so I can just print from those computers and have it come out the eMac printer.
I've looked at many articles on this. So far I've installed the drivers on all computers, plus they can all network to each other over File Sharing, so they are connected.
But I haven't been able to print yet. The most I've been able to do is get the files I try to print from the iBook and iMac to show up on the eMac, in its printer queue. Only it didn't show up for a LONG time. And when it did, the jobs automatically stopped and everytime I clicked start, it would automatically switch back to stopped again. The files would not print.
At this point, I want to get the iBook connected to it first. If I can do that, I'll try the iMac. But the iBook is first priority. I've tried making it connect to the Printer using IPP (IP Printing), and the result was... what I explained in the above paragraph. I also tried just ordinary Printer Sharing, but it said something close to this:
"Unable to locate eMac.local, Unknown host."
That hardly makes sense, because at that time I also tried getting the iBook connected to the eMac over File Sharing which worked. For some reason, the "eMac.local" and "iMac.local" files don't show up in my Network thing when I connect to them, or even when they're not connected. HOWEVER, I think they did at one point. I could swear I saw "eMac.local" and "iMac.local" in the Servers folder in the Network section of the iBook at one point. But it's no longer there.
Please help. I've described my problem as well as possible. What a long post. If there's any way to make my eMac, iMac, and iBook be able to print through my Epson Stylus CX4600 at any time directly, then I'll do it.
Help!

Yes. I did say that my eMac, iMac, and iBook are all
connected to the internet and networked to each other
over the Linksys router. I believe the router is
still on factory settings because we never really
"set" or programmed anything with it.
Mac OS 9.2.2 on the iMac, Mac OS X 10.4.8 on the
other two. IP addresses?
192.168.1.100 is what I would use to connect to the
eMac from the other computers.
This is the eMac's IP, correct? Did you type it into Network, or was it assigned by the router's DHCP?
192.168.1.101 is what I would use to connect to the
iBook from the other computers.
This is the iBook's IP, right? Again, fixed or DHCP?
192.168.1.102 is what I would use to connect to the
iMac from the other computers.
Same for this IP.
The iBook, as I've said, is wired. No wireless
connections to speak of.
Okay. Now, if the router is handing out IP addresses via DHCP, what range was it configured for? My Linksys, for example, is configured to hand out IPs in the range 192.168.0.10 to 192.168.0.254. It has the IP 192.168.0.1, so the IPs 192.168.0.2 through 192.168.0.9 are available for me to hand out as fixed IPs. If I was to hand out 192.168.0.100 as a fixed IP, the router's DHCP server would have a potential problem, as it might hand out that address too, and only one device can have a particular IP address on a particular network. If your router is handing out 192.168.1.100, .101, and .102 via DHCP, you could and probably do have a conflict if you've got those addresses set up as fixed IPs. In particular, if you have anything else on the network, including Bonjour-enabled devices such as printers, you're likely to have a conflict.
Best way to resolve a conflict, if any:
1 set all the Macs to either DHCP, or if fixed IPs are required, to a fixed IP outside the range of the DHCP range on the router. (Or you could just turn off DHCP on the router.)
2 check the router to be sure that DHCP is set the way you want it, and the DHCP pool is what you think it is.
3 shut down the Macs.
4 turn off the router, wait 30 seconds, turn it back on.
5 turn the Macs back on, one at a time.
On my Linksys, the way to set the DHCP pool is simple:
1 log into the router. (My router IP: 192.168.0.1. Yours would be 192.168.1.1.) Hit the 'Setup' tab. Verify the gateway IP. (Should be the router's IP. If it's not, something very strange is happening.) Verify the start of the DHCP pool. Verify that DHCP is on (or off, as you want). Verify the end of the DHCP pool. (My start is 192.168.0.10, and there are 245 IPs in the pool, so the end is 192.168.0.254. If I changed the number of IPs to 200, the end of the pool would be 192.168.0.209, and I'd be able to set the IPs 192.168.0.200 to 254 as fixed IPs if I wanted.) If your router allows for IPs to be reserved, you can set up reserved IPs for one or more of your Macs. (A reserved IP is an IP the router holds for a specific device. The network card in each computer has a specific MAC address; if that address is registered with the router, then every time that computer is turned on and connected it will get the IP that was reserved for it... so long as that IP is in the DHCP range and DHCP is turned on. Think of it as a fixed IP without your having to actually fix the IP.)

Problem with HP Printer Sharing?

I have an HP laserjet 1022 printer that has always worked shared. It's connected to my iMac via usb, and I have always been able to print to it with printer sharing. A few weeks ago however, the print sharing with my macmini and macbook wasn't working. Usually I delete and then readd the printer, but it didn't work this time. Also, now it recognizes the printer, but its trying to use the wrong ?driver? It's trying to use Generic PostScript instead of the normal 1022 it used to use. After my macbook was stolen, I tried to set the printer sharing up with my new macbook pro. That didn't work either. I called HP, but they said there was nothing they could do because it isn't a network printer, it's just printer sharing, and therefore a mac thing. What do I do?

Hi there, I just wanted to let you know what has happened with my printer since.
I called hp, and they said that because the printer didn't have some sort of extended care plan, that they would charge me $45 or I could call Apple. They said specifically that it was Apple's problem (yeah right).
Talked to the most friendly techies ever, and they spent hours on the phone with me trying a bunch of different ideas. Apparently, from what we can figure out, hp simply stopped updating the drivers. When I did try to download the 1022 driver from the website again, it downloads, says its installing, but never actually functions and just disappears. So after everything, even trying the original install cd, we determined that we just can't get it to work.
One interesting thing though:
The printer is plugged into my imac, and I was trying to print to it (using printer sharing) from my macmini, macbook, or macbook pro. None worked.
But, if I plugged in the printer to any other one of those computers via usb and tried to print wirelessly from the imac, it worked perfectly!
Hope things work out for you!

After Loading Snow Leopard, printer sharing no longer works

I have 3 macs in the house. Printer sharing always worked until I loaded Snow Leopard.
Now the 2 remote macs just continually say "looking for printer". The primary iMAC prints fine.
I've doubled and triple check the preferences on all 3 machines.
Please help!

Deleting the printer queues didn't work for me. What did work is deleting the print preferences (anything with "print" or "Printer in the name in user/library/preferences) and deleting anything in the user/library/printers folder on both machines. Then I setup the printer again on both machines. Also, I noticed printer sharing was on on the machine I was trying to share to, so I turned it off, not sure if it matters.

Print sharing no longer works

Just got a new iMac 2.93 GHz.
We have a HP Photosmart 8150 hooked up to it.
Now print sharing does not work.
It worked fine with the G5 iMac we had previously.
Both iMacs are/were running 10.5.6
Any thoughts?

I stupidly installed CUPS. That was the problem. The only fix was to install the OS again.

Printer Sharing with Leopard

Hi,
I just got a new iMac 24" with Leopard, and I'm really excited about it, but Printer Sharing is having a major problem! I don't know if this is a problem with the printer or the computer, but it is really getting on my nerves. For example, I am printing through my family's Windows computers fine, as well as my iBook 24", but after the first document prints, an error message shows up and says "Printer offline", but when I look at the printer it says, "Ready." I have figured out that if I press "Pause" and then "Resume" again, it will connect. But before I do that, it just sits there and does nothing. With my iBook, I can share my Epson printer just fine...It works perfectly! So do I need to change the settings on my printer or computer? I have a HP LaserJet 4000 Series printer, and so it's pretty old, but it works great, and I'd love to get another year or two out of it. Is there a script or something that I can do to fix this? I have tried Automator, it doesn't even work when I press "Watch what I do" or whatever. Thanks for your help!

your doing better than I am - we are still trying to connect to a printer on a windows (XP) machine- via a wireless connection. DO you remember how you did this?
We already went to the windoes machine and set the printer to share. When I try to add it to the macbook, it shows me the computer- but not the printer.
Puzzled in Ky.

Windows Server 2008r2 Printer Sharing

Hi folks,
I have a Windows Server 2008r2 set up as my workstation and I'd like to share the printer with my wife's MacBook. I've set up Printing Services on WS2008r2 and enabled IPP, LPD and everything else I could think of.
The printer sharing works, our other laptop which is Win7 can use it normally, but setting up the share on a Mac is a whole new kettle of fish.
I couldn't get it to connect via IPP, Mac keeps insisting on port 631 even though IPP is running on port 80 here. I have no idea what to put into the address field, if I copy/paste the URL the Mac doesn't recognise it. If I just put in the server name it's happy but insists on connecting to port 631.
Next came LPD which seems to work, Mac connects to the server and picks up the printer. Which brings me to the next problem. If I use standard generic postscript driver then nothing happens, printer gets switched on on the server and stops. An event log entry reports an LPD error:
"The Line Printer Daemon (LPD) service received commands in an invalid format from 192.168.2.106 and refused the print job. This can occur if the Line Printer Remote (LPR) client is incompatible with the Windows LPD service and Request for Comments (RFC) 1179. Try printing using a different LPR client."
The printer is a Canon Pixma iP5200R. If I switch the printer options from generic postscript to a Canon printer it will print but it only uses about 60% of the space, so everything is shrunk on the page. It does print the full content of the page, just makes everything smaller. I managed to get this far by selecting one of the BJC (Bubblejet) models from the drop-down list.
I've installed Canon's driver for iP5200 from their site but it's not available anywhere on the Mac. How do I tell the Mac to use a different driver?
I feel I'm getting close to fixing this, but now the problem is in Macland and I'm not too familiar with it.
Anyone got any suggestions? Any help would be appreciated!
Thanks!

I'm going to apologize first because I don't have a real solution and my post will sound negative, but my experience may give some insight.
My experience is that Apple didn't get Windows printing "done right" until 10.5. Prior to that, I could never print to a Canon S800 printer attached to a Vista Ultimate machine. With the printer attached to a XP machine, I could print, but it would often fail. (Just no output and OSX saying printer was offline.) This was with a G3 B&W with 10.3 and a iMac with 10.4. And like you, I did try the IPP and LPD settings but just never got a usable setup.
Then I got a Macbook Pro with 10.5. Printing worked fine straight out of the box to the same S800 printer on Vista. Mac Mini with 10.5 worked also. Upgraded both to 10.6 and printing still works. Even a clean reload of 10.6 on the Macbook, Windows printing is fine. Also to a Epson R280 attached to the same Vista machine.
Windows 2008, having more in common with Vista and Win7, I'd guess that you may be having similar issues to me. I don't know of any fix, other than 10.5. If you have a friend with a newer Mac, then you can test it. (Otherwise, if you can upgrade your Mac to 10.5 or 10.6. But testing with a friend's Mac would save the cost of buying an OSX upgrade if it didn't work.)
Like I said, no real solution, other than possibly upgrading to 10.5/10.6. So maybe just a pointer to a different line of thinking. Good luck!

Windows Server 2008r2 Printer Sharing over vlan

Hi folks,
I have a Windows Server 2008r2 set up as my workstation and I'd like to share the printer with 4 new macs. I've set up Printing Services on WS2008r2 and enabled IPP, LPD and everything else I could think of.
The printer sharing works, our other laptop which is Win7 can use it normally, but setting up the share on a Mac is a whole new kettle of fish.
I couldn't get it to connect via IPP, Mac keeps insisting on port 631 even though IPP is running on port 80 here. I have no idea what to put into the address field, if I copy/paste the URL the Mac doesn't recognise it. If I just put in the server name it's happy but insists on connecting to port 631.
Next came LPD which seems to work, Mac connects to the server and picks up the printer. Which brings me to the next problem. If I use standard generic postscript driver then nothing happens, printer gets switched on on the server and stops. An event log entry reports an LPD error:
"The Line Printer Daemon (LPD) service received commands in an invalid format from 172.16.8.106 and refused the print job. This can occur if the Line Printer Remote (LPR) client is incompatible with the Windows LPD service and Request for Comments (RFC) 1179. Try printing using a different LPR client."
The printer is a Brother hl-6050D/DN series. If I switch the printer options from generic postscript to a Brother printer it will print but it only uses about 60% of the space, so everything is shrunk on the page. It does print the full content of the page, just makes everything smaller. I managed to get this far by selecting one of the BJC (Bubblejet) models from the drop-down list.
I've installed Brother's driver for 5060D/DN from their site but it's not available anywhere on the Mac. How do I tell the Mac to use a different driver?
I feel I'm getting close to fixing this, but now the problem is in Macland and I'm not too familiar with it.
Anyone got any suggestions? Any help would be appreciated!+
Thanks!

I'm going to apologize first because I don't have a real solution and my post will sound negative, but my experience may give some insight.
My experience is that Apple didn't get Windows printing "done right" until 10.5. Prior to that, I could never print to a Canon S800 printer attached to a Vista Ultimate machine. With the printer attached to a XP machine, I could print, but it would often fail. (Just no output and OSX saying printer was offline.) This was with a G3 B&W with 10.3 and a iMac with 10.4. And like you, I did try the IPP and LPD settings but just never got a usable setup.
Then I got a Macbook Pro with 10.5. Printing worked fine straight out of the box to the same S800 printer on Vista. Mac Mini with 10.5 worked also. Upgraded both to 10.6 and printing still works. Even a clean reload of 10.6 on the Macbook, Windows printing is fine. Also to a Epson R280 attached to the same Vista machine.
Windows 2008, having more in common with Vista and Win7, I'd guess that you may be having similar issues to me. I don't know of any fix, other than 10.5. If you have a friend with a newer Mac, then you can test it. (Otherwise, if you can upgrade your Mac to 10.5 or 10.6. But testing with a friend's Mac would save the cost of buying an OSX upgrade if it didn't work.)
Like I said, no real solution, other than possibly upgrading to 10.5/10.6. So maybe just a pointer to a different line of thinking. Good luck!

No Printer sharing since upgrading to 10.3.9

Since upgrading my ibook to 10.3.9 I can no longer print via my DSL modem network (Epson stylus 6240). Printer Sharing worked great until this upgrade. In fact, now when I do attempt to print even from the iMac (where the printer is USB connected) I find it also cannot print unless I turn off sharing and delete the printer from the printer list and then re-add it. When I say it won't print, it attempts to open the connection and relatively quickly indicates printing has been stopped (exclamation point over the printer in the dock). Any suggestions? I've tried the usual troubleshooting stuff, uninstalling, reinstalling, etc.
iMac g4 and ibook g3 Mac OS X (10.3.9)
iMac g4 and ibook g3 Mac OS X (10.3.9)

done

I can't get my iMac to print wirelessly...

I have a 2009 intel-based iMac and a g5 IMac that connect to the internet via a wireless N+ Belkin router. I have two HP printers (a 2605 color laserjet and an 6500 officejet) connected with an ethernet cable to the router.
The g5 machine quickly identified both printers as "Internet printers" so I added them and was able to print wirelessly to both printers.
The newer iMac g5 prints wirelessly to the officejet, but does not "see" the laserjet as an internet printer (only as a "bonjour shared" type printer). I have tried everything, including setting up the printer manually by entering its IP address, and I can add the printer this way but I won't print.
If I select and add the laserjet printer under "Bonjour Shared" kind, it is unable to print (I either get a message that says "connecting to printer", which can last for hours, or I get a message indicating "Job accepted" but still nothing prints).
Before I switched Internet providers, both Macs could print wirelessly to both printers (I recently switched from a DSL provider to a cable provider, and then back to my old DSL provider).
Any help would be appreciated - very flustering!!

I connected a small photo printer to the router's USB cable and somehow this allowed for the iMac to once more see the HP Colorlaserjet as an IP printer. I happily tried adding it however, I get an error message indicating that the software is currently unavailable.
I still have the installation CD that came with the Colorlaserjet printer and I re-installed it last week so am unclear as to why this happens. I also tried downloading it from the Apple website but not luck either. I tried uninstalling the software (maybe this is the problem), but I can't seem to find the files in Finder (the manual recommends finding and deleting all PPD files, but must admit don't know how to search for these)
So I'm closer but still unable to print... hence my nickname...

HP Printer sharing problem

I have a 27" iMac (iMac12,2) running ML 10.8.3 with an HP P1006 laserjet printer direct-connected to it. The iMac is on a network with a MacMini running SL 10.6.8, a MacBook Pro running 10.6.8, and an old G5 PowerMac running 10.4.11. I have the printer set up to be shared and I can print to it from the MacMini. The MacBook sees the printer but it won't print to it. The G5 doesn't even see the printer.
The iMac is new in the system and I'm just setting it up. The printer was originally connected to the G5 and all 4 computers would print to it that way. I moved the printer connection to the iMac because I want to take the G5 out of service. If I re-locate the printer connection to the MacMini, the Mini and the iMac can still print to it, but the situation is the same for the MacBook and the G5 - the MacBook sees it but won't print, the G5 doesn't see it.
All four computers are hard-wired to the network, no wireless base stations in the way. I've got all of the latest drivers I could find for all four machines. I could (possibly) understand the issue with the G5 since it's still running Tiger but I can't make any sense out of the failure for the MacBook to print since the set-up is identical to that of the Mini.
Any thoughts, ideas, suggestions?
Dennis

Hi there, I just wanted to let you know what has happened with my printer since.
I called hp, and they said that because the printer didn't have some sort of extended care plan, that they would charge me $45 or I could call Apple. They said specifically that it was Apple's problem (yeah right).
Talked to the most friendly techies ever, and they spent hours on the phone with me trying a bunch of different ideas. Apparently, from what we can figure out, hp simply stopped updating the drivers. When I did try to download the 1022 driver from the website again, it downloads, says its installing, but never actually functions and just disappears. So after everything, even trying the original install cd, we determined that we just can't get it to work.
One interesting thing though:
The printer is plugged into my imac, and I was trying to print to it (using printer sharing) from my macmini, macbook, or macbook pro. None worked.
But, if I plugged in the printer to any other one of those computers via usb and tried to print wirelessly from the imac, it worked perfectly!
Hope things work out for you!

Personal File Sharing and Printer Sharing difficulty

I hope someone can help me, this is really irritating.
I have an Intel iMac running OS X 10.4.11 and a motley band of other computers, Mac and Windows. For the past few months, I haven't been able to use Personal File Sharing or Printer Sharing to connect to the iMac. Some details:
1) Everything used to work about 6 months ago, but stopped... I don't know exactly when it stopped and I don't remember any installations/updates/etc that happened around that time.
2) I can't connect from a OS X 10.3 Powerbook to the iMac, but I can connect from the iMac to the Powerbook.
3) None of my Windows computers are able to do anything.
4. All of the computers have no trouble connecting to the Internet.
5. I don't know if this means anything, but the iMac beeps as soon as the desktop appears on startup and right before the desktop disappears on shutdown.
Does anyone have any ideas? Everything seems to be set up properly... the Sharing control panel shows that all Personal File Sharing, Windows Sharing, and Printer Sharing are all running.
Thanks,
Joe

Hi Joe, and a warm welcome to the discussions!
1. Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
2. Find the IP of the iMac in it's Network Pref Pane>TCP/IP tab. In finder, select Go menu>Connect to Servers..., then on the PB, type in afp://ip.of the iMac, like...
afp://10.0.1.5
afp://192.168.1.3
3. From Windows®, try...
smb://10.0.1.5
smb://192.168.1.3
5. Open Console as soon as it boots up, check for meaningful messages.

IMac vs printer sharing

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