Lexmark X 850 Owners Manual

Diagnostic aids3-43
7500-XXX
Paper Prompts
When a tray is out of the indicated paper size, a prompt is sent to the user to load paper in a tray. This setting 
controls the tray the user is directed to fill. Selections are Auto (default), MP Feeder, and Manual Paper. 
To change this setting:
1.Touch Paper Prompts from the Configuration Menu.   [settings current value]   appears on the 
touch-screen. 
2.Touch   or   to scroll through the settings other possible values. 
3.To exit this screen without...

3-44MFP Service Manual 7500-XXX
When you touch Enable (encryption) or Disable (formatting), Contents will be lost. Continue? 
appears on the LCD. Touch No to cancel or Ye s to proceed. If you touch Ye s, the printer performs the selected 
action on the hard disk. The following graphic appears when the encryption process is selected:
The following graphic appears when the formatting process is selected:
Encrypting Disk
1/2 0%
DO NOT
POWER OFF
Formatting Disk
1/2
0%
DO NOT
POWER OFF 

Diagnostic aids3-45
7500-XXX
The panel provides many progress indicators during the two-stage process. 
1.1/2 indicates that the process is currently in the first stage. 
2.0% indicates the progress of the current stage of the process.
3.The progress bar indicates the overall completion of the entire process by filling in throughout each 
separate stage. 
When the first stage of either process completes, the printer displays either of the following graphics depending 
on the process selected and then...

3-46MFP Service Manual 7500-XXX
The entire process is complete when the progress bar appears completely shaded and the percentage indicator 
shows 100%. After completion, the panel returns to Disk Encryption. 
Wipe Disk
This setting provides you with a tool for erasing the contents of a disk. 
Warning:  Wipe Disk removes a disks data in such a way that it cannot be recovered. 
To change this setting:
1.Touch Wipe Disk from the Configuration Menu.
Note:  If an advanced password has been established, you...

Diagnostic aids3-47
7500-XXX
If you touch No, the device cancels the Wipe Disk process and returns to the Configuration Menu. If you touch 
Ye s, the following screen appears: 
The panel provides the following progress indicators during the execution of this process:
1.1/2 indicates that the process is currently in the first stage. 
2.0% indicates the progress of the current stage of the process.
3.The progress bar indicates the overall completion of the entire process by filling in throughout each...

3-48MFP Service Manual 7500-XXX
When the first stage of the process completes, the printer displays the following graphic and then begins the 
second stage of the process:
The entire process is complete when the progress bar appears completely shaded and the percentage indicator 
shows 100%. The panel returns to the screen that shows the values for the Wipe Disk setting. 
Font Sharpening
This setting allows you to set a text point size below which the high frequency screens are used when printing 
font...

Diagnostic aids3-49
7500-XXX
Require Standby
This setting determines if the Standby Mode is On or Off. The default is On.
To change this setting: 
1.Touch Require Standby from the Configuration Menu.
2.Touch Back to cancel and return to the Configuration Menu. 
3.Touch Submit to save the change.
If Standby Mode is on, the printer begins functioning in Standby Mode when it remains idle for an amount of 
time. The Standby Mode enables the printer:
•To consume less energy than when operating in normal mode...

3-50MFP Service Manual 7500-XXX
Key Repeat Initial Delay
When a key is touched repeatedly, this is the delay before the key begins repeating. The delay ranges from .25 
seconds to 5 seconds. The default is 1 second. Values are given in increments of .25 seconds. 
To change this setting: 
1.Touch Key Repeat Initial Delay from the Configuration Menu.
2.Touch   to increase the value or   to decrease the value.
3.Touch Submit to save the change.
4.Touch Back to cancel and return to the Configuration Menu....

Repair information4-1
7500-XXX
4.  Repair information
Warning:  Read the following before handling electronic parts.
Handling ESD-sensitive parts 
Many electronic products use parts that are known to be sensitive to electrostatic discharge (ESD). To prevent 
damage to ESD-sensitive parts, use the following instructions in addition to all the usual precautions, such as 
turning off power before removing logic boards:
•Keep the ESD-sensitive part in its original shipping container (a special “ESD bag”)...

4-2MFP Service Manual 7500-XXX
Removal procedures
CAUTION: Remove the power cord from the printer or electrical outlet before connecting or 
disconnecting any cable or electronic board or assembly for personal safety and to prevent 
damage to the printer. Disconnect any connections between the printer and PCs/peripherals. The
MFP weighs approximately 70 kg (154 lb) and requires at least four people to lift it safely. Make 
sure your fingers are not under the MFP when you lift or set it down.
Parts...