OKIDATA DOC-IT3000, Service Manual

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Page: 156
Service Guide DOC-IT3000/4000
Chapter 3 Maintenance & Disassembly
LED Head Type Selection and Drive Time Setting
This procedure is performed when a new LED head is installed as a replacement for an old LED
head, and the two heads have different resolutions and/or ratings.
Before performing this procedure, check the resolutions and the ratings of the two heads. Verify
that it is necessary to perform this procedure.
This procedure will reset the resolution and rating for the LED head. If incorrect settings are
entered, printer output will be distorted.
Refer to Section 3.2 of this Service Handbook for installation instructions for the LED head ().
· Verify that the top cover is closed.
· Verify that the paper tray contains paper.
· Verify that no error messages are displayed on the LCD control panel.
· Raise the scanner cover.
· Power ON the Doc-It while pressing the START button on the scanner unit.
· The LCD will display:
Replace Unit?
1:PRN 2:SCN,STOP
Note:
If an error message appears, please refer to Section 4 of this Service Handbook ().
· Press the 1 key on the numeric keypad.
· The LCD will display:
Print Head DPI?
1:300, 2:400 STOP
· Press the 1 key on the numeric keypad for a 300 dpi LED head. Press the 2 key on the
numeric keypad for a 400 dpi LED head.
· The LCD will display:
Intensity No ___ ?
· Enter the luminous intensity number of the new LED head. Refer to this diagram when
identifying the luminous intensity number.
· The LCD will display:
No. xx Set START or STOP?
· You must confirm the luminous intensity number you just entered. Press the START key
to accept the setting. Press the STOP key to reject the setting.
· If you pressed the START key, the change will be saved automatically in the EEPROM.
· Press the STOP key to exit the printhead replacement menu.
· The LCD will display
Print Head DPI?
1:300, 2:400 STOP