Printing for snow leapard to phaser 7750 Problem has anyone been able to update the firmware, has anyone resolved the pause issue? Has Apple done anything?

Included general maintenance video and how to clear smears from the paper.

Solution: Remove Print Smears / Printing Fuser Cleaning Pages
7750 Support Knowledge Base Remove Print Smears Fuser Cleaning...

With Troublshooting highlighted on the printer display perform the following steps:

1. Press OK.
2. Press the Down Arrow and scroll to Print Quality Problems.
3. Press OK.
4. Press the Down Arrow and scroll to Remove Print Smears.
5. Press OK. The printer will print 5 cleaning pages.

Repeat this process five or six times, to remove stubborn toner buildup from the fuser.
Always make sure you are matching the type of paper loaded in the printer tray(s) to the correct Paper Type front panel setting. When you load a tray with paper, the front panel will ask you to indicate the type of paper you loaded. For correct print quality and printer operation, be sure to set this correctly.
MAINTENANCE:
Phaser 7750 Video Instruction Maintenance for the Printer Phaser

It sounds like one of the cover or tray sensors is not working correctly. Check the actuator on the fuser cover, sometimes these break off so the printer thinks the cover is still open. If that seems ok and you have a lower tray deck unplug it to eliminate them as the cause.

Sounds like the NVM was corrupted and it can't boot properly.
Probably needs to have the firmware reloaded.

1) Change the “Xerox” Folder Permissions:

• Navigate to Applications > Utilities and open a Terminal window.

• Type the following command: sudo chown -R root:admin /Library/Printers/Xerox

• You will be prompted to enter your password.

2) Install Rosetta from the Snow Leopard DVD:

• Insert the Snow Leopard Install DVD

• Select Optional Package

• Select “Rosetta only” from the list of optional packages

• Click install and follow instructions to complete installation; there is no need to reboot

3) Reset Printing System:

• Navigate to: System Preferences> Print & Fax> Xerox Phaser [6100, 6110, 6110MFP]

• Right click on the printer

• Select Reset Printing System

4) Install Printer (without removing the driver):

• Navigate to: System Preferences> Print & Fax> Xerox Phaser [6100, 6110, 6110MFP]

• Select +: add the available Xerox printer

If you put Tray 2 in Tray 1's spot with the heavy stock in Tray 1 (now in tray 2's spot) and print from it, does the problem persist?

This may help...
http://www.support.xerox.com/support/phaser-7500/support/enus.html?objGUID=4538

There are apparently incompatibilities between some Xerox drivers and the security-improved Snow Leopard. It seems that many pieces of software (and drivers) relied on not-so-clean techniques to cut corners while operating. These techniques are no longer allowed by Snow Leopard (the same problem afflicts XP SP3, Vista and Seven).

This article lists several problems, explanation and (perhaps) fixes:

http://www.ucalgary.ca/it/news/4366

Meanwhile, Apple is working to some workarounds too (there is an update linked in the article which may be of interest to you).

What a worthless site, you got the question but never an answer

That is a firmware issue. You can go to Xerox.com and follow these procedures.

Print a Configuration Report and review the Engine Firmware Version section to determine the firmware version. See the Related Items below for additional information.
Firmware version 05.08.00 or higher can be installed to resolve the image quality problem. If necessary, upgrade the firmware version. See the Related Items below.
If the printer's firmware version is currently at 05.08.00, replace the Print Cartridge. See the Related Items below.
Related Items:> Go ToMicrosoft Windows OS Firmware Update Version 05.08.00
> Go ToApple Macintosh OS Firmware Update Version 05.08.00
> See AlsoHow To Print the Configuration Report
> See AlsoHow To Replace the Print Cartridge

POSSIBILITIES

Problem:
1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt Cause:
A Phaser 7700 Accumulator Belt was installed in a Phaser 7750. The Phaser 7700 Accumulator Belt does not have retractable 1st Bias Transfer Rollers; so these errors will be reported if one is installed in a Phaser 7750 printer. Solution: Fixed! Did not fix. Remove the Phaser 7700 Accumulator Belt and install a Phaser 7750 Accumulator Belt. TRY FIRST (Solutions without parts):
1. Check that all shipping restraits have been removed.



TROUBLESHOOTING TIPS AND HINTS:
1. Test the 1st BTR motor in diagnostics to verify proper operation. 2. Test the 1st BTR sensor in diagnostics, then run the 1st BTR motor test and recheck the 1st BTR sensor. Sensor state should alternate between L and H. The sensor is part of the accumulator belt.

PARTS:Parts are listed in the order of highest probability for repair.
NUMBER QTY DESCRIPTION
116177400 1 *KIT IBT - UNIT



REPAIR/INSPECT/PREVENT PROCEDURE:
1. Clean feed rollers, exit rollers and guides; replace if
necessary.
2. Clean feed rollers and exit rollers only when dust or
debris is visible.
3. Remove and clean all paper trays.
4. Clean the Laser Scanner Unit window.
5. Inspect the image density sensors; clean if necessary.
6. Inspect the accumulator belt home sensor; clean if
necessary.
7. Inspect the fuser assembly; clean if necessary.
8. Print the Error Log, diagnose and repair any problems as
indicated.
9. Print the Usage Profile, diagnose and repair any
problems as indicated.
10. Check version of all installed firmware; as
appropriate, install the latest version of firmware.
11. Check cleanliness of interior and exterior of printer,
including fans; if necessary, clean (dust or vacuum) these
areas.
Problem:
1st BTR Contact Failure or 1st BTR Retract Failure Message is displayed after replacing the Accumulator Belt

At work we have had the same problem as some mentioned below, the printer rebooting when going from 10.5 to 10.4 Macs and Windows comps. After around 3 months of stuffing around we have finally fixed it using this file download:
http://www.support.xerox.com/go/getfile.asp?objid=69002&EULA=1&Xtype=download&uType#suppplat

To install it just typed the IP address of the printer into web browser, chose Print>File Download>Choose File and then hit the green button.

Hope it works for others also. So far I have been unable to make the printer crash again printing from the different platforms.