The problem usually occurs when the Encoder strip a think plastic strip falls out of its guide inside the printer. Here is how to fix it:

1.  Lift scanner cover and remove the two plastic panels covering wires. Mark down position of cables then remove them, and remove the now-freed top scanner section entirely
2.  Remove screws from top plastic shell (There’s two in the back and four in the front, there’s also two plastic tabs in the front that must be bent aside before you can remove the top shell.)
3. Gently put the encoder strip back in its plastic guide.
4. Restart Printer

Resetting the DCP-110C Printer Waste Ink Counter is easy, follow the instructions below:

1. Press the Menu & Mono start keys next press the Up arrow key 4 times to make the machine enter the maintenance mode.
2. Enter 8 & 0 by using the up arrow key & SET keys.
3. Press the mono start key several times until the purge count appears on the LCD.
4. Enter 2 7 8 & 3 by using the up arrow key & set keys to reset the purge count to zero
5. Press the stop/exit key to return to the initial stage of the maintenance mode.
6. Enter 9 twice by using the up arrow & set key’s to exit from maintenance mode
7. Restart printer

Trying to print with your HL-140 and the Drum light is on? Follow the instructions below.

Reset the Drum

1. Press the cover release button and then open the front cover of the printer.
2. Press & hold down the Go button until all 4 LEDs are lit. Once all 4 LEDs are lit, release the Go button.
3. Close the front cover.
4. Make sure that the Drum LED is now off.

Caution: Reset the drum counter only when you replaced the drum unit with a new one.

This problem usually occurs due to a Paper Jam in the printer or a faulty Drum unit in the printer. Follow any of the instructions below that matches your problems.

Printing

1. In your word document/or document you are trying to print
2. Go to File
3. Page Setup
4. Paper
5. Make sure that your paper source is set to Tray 1 or what Tray the correct paper is in.

Reinstalling Toner

1. Take off the front cover
2. Pull the tabs on the side
3. Pull out the big toner and cartridge
4. Find the Blue tab
5. Slide the tab from right to left
6. Reinsert toner
7. Close the toner door

If none of the above work, it is possible that your Drum unit is faulty and needs to be sent in to the manufacturer for repair.

The application has failed to start because CSRSRV.DLL was not found. Reinstalling the application may fix this problem.

First you need to access the recovery console. Following the instructions below

1. Boot with your original Windows XP CD. You need one which will allow you to get into the Recovery Console.
2. Once booted, choose to use the Recovery Console
3. Choose which Windows installation you need to log into. if there’s only one on that machine, it will be “1?.
4. Type in the Administrator password.
5. You need to then copy a version of the file that isn’t corrupted, over the one that is. Type:** Copy d:i386csrsrv.dll c:windowssystem32csrsrv.dll**
6. Restart the Computer

This command also may indicated Harddrive failure. Scan with a Hard Drive tool such as Spinrite or HDD Regenerator to make sure the drive is in good condition.