What is 125.08 Service ITU error - Lexmark C772dn Laser Printer

Hi!
Yes, it actually has a built-in modem, here is the specifications:
Max Transfer Rate 56 Kbps
Modem Fax / modem - MDC
Protocols & Specifications ITU V.21, Bell 212A, ITU V.22, ITU V.22bis, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, ITU V.17, ITU V.23, ITU V.27ter, ITU V.8bis, Bell 103J, ITU V.92, ITU T.30, ITU T.4, ITU V.250, ITU V.251, ITU V.80
Fax Compatibility G3
You can also check all hardware details about that laptop at: http://www.laptopdrivers.net/specs/hp_compaq_nx6310_laptop.htm
Hope this helps.

From the Lemark Service manual

A 100.01 ITU error indicates that the printer did not detect the ITU belt home sensor. Before proceeding with this

service check, make sure that the Second Transfer Roll is correctly installed. After you reinstall the Second

Transfer Roll, check to see if a 100.01 ITU error is still displayed. If a 100.01 ITU error is still being displayed,

continue with this check.

The ITU has an optical sensor that watches for a piece of reflective tape on the inside of the image belt. This

tape is read every revolution of the belt. If a signal is not received from the belt sensor within a certain time

period, the printer posts an error due to the loss of signal. There are several causes for the loss of signal. First,

the belt has tracked too far to the front or rear of the printer. In this case, the belt is still turning, but the reflective

tape is no longer passing within view of the belt sensor. This is considered a belt tracking error and is initially

posted as a 100.02 ITU Error. The other causes of a signal loss could be a belt stall, meaning the belt is not

turning, or a true signal loss, which would be due to a bad sensor, broken cable, loose connection, or bad

system board. These other causes post as a 100.01 ITU Error.

To assist the printer in determining the cause of a signal loss, there is a buffer that records the belt position for

the last 50 revolutions. If the printer loses the belt signal, it refers to the buffer. If the buffer shows significant

mistracking before signal loss, it will post a 100.02 ITU Error. If the buffer shows that the belt has been tracking

in the center before signal loss, it posts a 100.01 ITU Error. Due to memory restrictions, the buffer is not saved

during POR. This means if a printer posts a 100.02 ITU Error, so the belt is tracked off, and the customer or

servicer turns off the printer to clear the error, when the printer starts up, it will still not see the belt signal and will

now post a 100.01 ITU Error because the buffer is empty. When servicing a printer for a 100.01 ITU Error, it is

important to view the error log. See "Display Log" on page 3-29. The error log can only be displayed at this
point. Do not try to print the log. Look for past occurrences of 100.01 ITU Errors preceded by a 100.02 ITU Error.

The only thing that helps is replacing the ITU.

lexmark basically has said that if this error doesnt clear by powering off the machine and powering it back on again then it will need to have a service call. this error means there is a problem with the itu belt assembly.below is what they say. the steps were to pwoer it off and back on again using a grounded wall socket

This error normally requires a service call. However, certain rare occurrences, such as a stray static discharge in the vicinity of the printer or a power fluctuation, can cause a false 103 ITU error message to appear. In these cases, the error is only temporary and can be easily resolved without service. Follow the steps in the table.
Step Action 1
Power the printer off, wait ten seconds, and then power the printer back on.
Did the error message return?
Yes: Continue to step 2
No: Print a test page. If the page prints, the printer is functioning correctly. 2
If possible, connect the printer's power cord directly into a grounded wall outlet. In rare instances, a surge protector or uninterruptible power supply (UPS) can generate false error messages.
Did the error message return?
Yes: Continue to Contacting Lexmark below.
No: Print a test page. If the page prints, the printer is functioning correctly.

Please follow the appended link.

Don

http://support.lexmark.com/index?page=answers&startover=y&locale=en&userlocale=EN_US&productCode=LEXMARK_C782&segment=SUPPORT&question=83.05+ITU+Missing+error+message#1

ITU is missing or defective. Replace the ITU and the problem should be solved.
Gerrit Jan

You replace the ITU it has reached its end of life cycle.

1 Gig.
General MPN: PG567EA#ABU
System Type: Notebook
Built-in Devices: Stereo speakers
Width: 32.9 cm
Depth: 27.2 cm
Height: 4.2 cm
Weight: 3.1 kg
Localisation: English / United Kingdom
Processor Processor: Intel Celeron M 320 / 1.3 GHz
Data Bus Speed: 400 MHz
Chipset Type: Intel 852GM
Cache memory Type: L2 Cache
Installed Size: 512 KB
Ram Installed Size: 256 MB / 1 GB (max)
Technology: DDR SDRAM - 266 MHz
Memory Specification Compliance: PC2700
Storage controller Type: IDE
Storage Hard Drive: 30 GB - 4200 rpm
Optical storage Type: DVD-ROM - integrated
Read Speed: 24x (CD) / 8x (DVD)
Display Display Type: 15" TFT
Max Resolution: 1024 x 768 ( XGA )
Widescreen Display: No
Video Graphics Processor / Vendor: Intel Extreme Graphics 2
Video Memory: Shared Video Memory (UMA)
Audio Audio Output: Sound card
Compliant Standards: AC '97
Input device(s) Type: Keyboard, touchpad
Telecom Modem: Fax / Modem
Max Transfer Rate: 56 Kbps
Protocols & Specifications: ITU V.21, Bell 212A, ITU V.22, ITU V.22bis, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, ITU V.17, ITU V.23, ITU V.27ter, ITU V.8bis, Bell 103J, ITU V.8, ITU T.30, ITU T.4, ITU V.250, ITU V.251, ITU V.80
Fax Compatibility: G3
Networking Networking: Network adapter
Data Link Protocol: Ethernet, Fast Ethernet
Compliant Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3i, IEEE 802.3x

This error normally requires a service call. However, certain rare occurrences, such as a stray static discharge in the vicinity of the printer or a power fluctuation, can cause a false 103 ITU error message to appear. If possible, connect the printer's power cord directly into a grounded wall outlet. In rare instances, a surge protector or uninterruptible power supply (UPS) can generate false error messages.