I have an error code CD 40 on a Toshiba estudio 2540. Do you know what this code means. Thank in advance. Joe

SOURCE: error codes

3-333 communications failure between the Foreign Interface
and the machine.
Press 0 and start button at same tame.
Enter 6789 and select confirm. Select dc 131 NVM read/write.
select input number an type:
752-002 0 = Foreign Interface disabled 1 = Foreign Interface Enabled
759-015 1 = Addition Device (Auditron) 2 = Subtraction Device (Debit card)
if you want to see current value select "read"

SOURCE: Error code 929

Hi Tony

you can refer to this links

http://support.lexmark.com/perl/support/support.cgi

929 or 929.xx Service Toner Sensor Error on a Lexmark T64x Printer

Error: " 929 Toner Sensor "


"927, 928, or 929 PC Cartridge Error" on the Lexmark W820


Error: "929 Service Toner Sensor"

SOURCE: Toshiba estudio 166 C44 error code

Hold "0" and "8" while turning on machine.....continue holding until machine enters service mode. Enter "400" press enter. Enter "0" press enter. Power off / on. If code returns, machine needs parts replaced. Do Not keep resetting, may cause damage to Fuser Unit.

Engr M A Al Mamun

• 41 Answers
• Posted on Jul 24, 2010

SOURCE: toshiba estudio 4511 error code C440

Press 0-8 then enter 400 and make it 0 then press print switch, if doesen't work u have to change thermostar, then if not working change heater, if not then IH board, and the last solution is to change the system board.

SOURCE: toshiba estudio 351c error code

Hi
I hope that this will help you

[CE40] Image quality control test pattern abnormality

(1) Use "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to 576)"to check the abnormal occurring condition for each color.

(2) Check "Output value display of image quality sensor / Low-density pattern (05-391-0 to 3)" to

check if the low-density pattern abnormality occurs for each color. The values under 320 for Y, M

and C, and under 220 for K are defined as low-density pattern abnormality.

(3) Check "Output value display of image quality sensor / High-density pattern (05-390-0 to 3)" to

check if the high-density pattern abnormality occurs for each color and identify the color which

pattern is abnormal. If the value is 630 or above, it is defined as high-density pattern abnormality.

(4) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Image

quality closed-loop control / Laser power (08-557)" to "0" (Invalid).

(5) Perform "Enforced performing of image quality open-loop control (05-394)".

(6) Output the image quality control test pattern (04-270) more than one time and check the patch of the color identified in step (3) to see if the image is abnormal.

(7) Replace the image quality sensor.

(8) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Image

quality closed-loop control / Laser power (08-557)" to "1" (Valid).

(9) Perform "Enforced performing of image quality open-loop control (05-394)" and make sure it is

completed normally. (Error [CE40] does not appear.)

(10) Clear all "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to 576).

Good Luck

Regards