Lexmark C950 Service Manual

4-388 Service Manual
5058-030
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Setup and adjustments
Sensor (ATC) setup
Warning: This procedure must be done for all new developer housings being installed or print quality problems
may occur.
Note: This procedure is applicable only to firmware versions LHS2.TP.P244a and above. Before re-installing
the new developers, make sure the latest firmware is installed on the device.
1 Before installing any new developer housings in the machine, record the barcode number located on
the sensor (ATC) for all new developer housings to be installed.
Example:
2
From the Diagnostics menu, navigate to Engine Adjust > ATC Sensor Adjust Values. Enter the
values recorded in step 1 to its applicable settings:
• ATC SENSOR BARCODE_NO[Y]
• ATC SENSOR BARCODE_NO[M]
• ATC SENSOR BARCODE_NO[C]
• ATC SENSOR BARCODE_NO[K]
Touch Submit to save the settings.
3
Without exiting Diagnostics mode, navigate to the Engine Adjust menu and touch ATC Sensor
Adjust Cycle. The operation runs, until the operator panel prompts as “passed”.
After this operation, the ATC Sensor Adjust Values settings other than the barcode settings are
automatically computed.
4
Without exiting Diagnostics mode, enter again the ATC Sensor Adjust Values to view the settings.
Use the ATC value conversion chart to get the corresponding Coefficient and Offset NVM values for
each barcode. See
“ATC value conversion chart” on page 4-389. Check the settings shown on the
menu if they match the values on the ATC value conversion chart. If the values are different, then
update the following settings to correctly match:
Touch Submit to save the settings.
0
3
3
Settings to update Values from the ATC value conversion chart
ATC SETUP COEFFICIENT (Y)
ATC Setup Coefficient for Y
ATC SETUP COEFFICIENT (M)
ATC Setup Coefficient for M
ATC SETUP COEFFICIENT (C)
ATC Setup Coefficient for C
ATC SETUP COEFFICIENT (K)
ATC Setup Coefficient for K
ATC SETUP OFFSET (Y)
ATC Setup Offset for Y
ATC SETUP OFFSET (M)
ATC Setup Offset for M
ATC SETUP OFFSET (C)
ATC Setup Offset for C
ATC SETUP OFFSET (K)
ATC Setup Offset for K

Lexmark C950 Specifications

General

Print Resolution	1200 x 1200 dpi
Duplex Printing	Yes
Processor Speed	1.2 GHz
Connectivity	Ethernet, USB
Print Technology	Laser
Print Speed	50 ppm
Monthly Duty Cycle	300000 pages
Recommended Monthly Page Volume	5, 000 - 33, 000 pages
Memory	1024 MB
Hard Drive	Optional
Output Capacity	500 sheets
Interface	USB 2.0
Media Type	Plain paper, Card stock, Labels, Envelopes, Transparencies
Total Media Capacity	5140 sheets
Media Sizes	Letter, Legal, A4, A5, Executive, Folio, Statement
Operating Systems Supported	Windows, Mac, Linux