Brother HL-T4000DW

Creating of Head Calibration Data and Writing it into Flash ROM (Maintenance mode 02)

Function

This procedure scans the "Print pattern for creating head calibration data" sheets placed on the document cover glass of the document cover, creates the head calibration data using the scanning result, and writes it into the flash ROM on the main PCB.

Note:
On the Printer model, head calibration data is not created, and only initialization of the droplet variation parameter is performed.

Operating Procedure

Notes:

• Before carrying out maintenance mode 02, update the firmware to the latest version.
• Before proceeding to the procedure given below, use “Printout of Test Pattern (Maintenance mode 09)” to check that there is no block missing.
• Before proceeding to the procedure given below, use “Assurance Mode Switch Setting (Maintenance mode 88)” to check that the uneven printing correction for upper and lower ends of the nozzle is set to ON (Selector 1 on AMS05 is "0").
• Before proceeding to the procedure given below, use the following to enable the machine to make high precision printing. “Acquisition of White/Black Level Data (Maintenance mode 55)”
• Make sure that both the document scanner unit and document cover are closed.
• For higher precision of uneven printing correction, it is recommended to use the recording paper specified below to print the pattern for creating head calibration data. US: Xerox 4200DP 20 lb., Brother BP60PL EU, AP and others: Xerox Business 80 g/m2, Brother BP60PA

MFC model

1. Save a copy of "head_calib_BHM17.prn" to a USB flash memory.
2. Use “1.3.20 Printout of PRN/JPEG Files in USB Flash Memory (Maintenance mode 61)” to print the file pattern (2 sheets).
   Tip: The pattern can also be printed by opening "Filedrgs" on your PC and dragand- drop this file onto the Brother Maintenance USB Printer driver icon.
3. Set the pattern printed with "1_page" on the document cover glass of the document cover so that the ▲ mark fits on the left rear of the document cover.
4. Press the 0 and 2 keys in this order in the initial stage of the maintenance mode. The "MAINTENANCE 02" and "No. 1 Sheet Set" appear on the LCD in this order.
   Note: Pressing the Stop key immediately returns the machine to the initial stage of the maintenance mode without creating head calibration data.
5. Press the Mono Start key. The machine displays the "Scanning" on the LCD and starts scanning the "Print pattern for creating head calibration data" placed on the document cover glass.
6. If "No. 2 Sheet Set" appears on the LCD, remove the pattern printed with "1_page" from the document cover glass and set the pattern printed with "2_page."
7. Press the Mono Start key. The machine displays the "Scanning" on the LCD and starts scanning the "Print pattern for creating head calibration data" placed on the document cover glass.
8. Upon completion of scanning, the machine displays the "Write Head Calib" on the LCD, creates the head calibration data, and writes it into the flash ROM on the main PCB. Upon completion of writing, the "Complete" appears. Press the Stop key to return to the initial stage of the maintenance mode.

Printer model

1. Press the 0 and 2 keys in this order in the initial stage of the maintenance mode. "Init Head Calib?"appears on the LCD.
2. Press the Mono Start key. The machine displays the "Write Head Calib" on the LCD, initializes the droplet variation parameter, and displays the "Complete". Press the Stop key to return to the initial stage of the maintenance mode.

Note:
If required print quality cannot be obtained with the initialized calibrated value, set Fine to Print Quality or write calibration data using the procedure given below:

1. On the Printer model machine to which calibration data is written, perform the steps (1) and (2) for MFC model and print patterns.
2. On a MFC model machine, perform the steps (3) to (8) for MFC model.
3. Referring to Maintenance 68, and back up the head calibration data of the MFC model machine in a USB flash memory.
4. Referring to Maintenance 68, and perform restore of head calibration data on the Printer model machine.