Other Hidden Function Menus; Hidden Function Menus Enabled By Pressing Switch(Es) When Turning The Machine On; Drum Life Reset Function; Parts Life Reset Function - Brother HL-1850 Service Manual

CHAPTER 7 HIDDEN FUNCTIONS
4.

OTHER HIDDEN FUNCTION MENUS

4.1 Hidden Function Menus Enabled by Pressing Switch(es) When Turning the
Machine on
The following settings and function will be available by holding down the specified switch(es)
while turning the machine on.
Switch(es)
Go
Reprint
Back
–
+
Set
Go & +
Go & Set
– & +
– & Set with
cover open
4.2

Drum Life Reset Function

This function is used by the user when changing the new drum unit to clear the drum life
counter.
To operate this function, hold down the "Go" switch while the front cover (process unit cover)
is open until the message ">>>>DRUM CLEAR" appears on the LCD display.
4.3

Parts Life Reset Function

This function is used by service specialists only when changing the periodical replacement
parts to clear the life counter.
To operate this function, press the "Go" and "+" switches together until the menu "RESET
PARTS LIFE" appears on the LCD display. Select the required item (part name) using the
"+/– " switches, then press the "Set" switch. See
REPLACEMENT PARTS' in CHAPTER 5
replacement parts.
Display
DEMO MODE=ON*
DEMO MODE=OFF
LANG.=ENGLISH*
......
HEX DUMP MODE
DRAM CHECK MODE
GO TEST MODE
LINE TEST MODE
ZLH HV CHECK
Description
Enables and disables DEMO MODE. If
this function is ON (default setting), the
user can set a printer to work as a demo
machine. It turns OFF automatically
when the printing data is sent to the
printer.
Continuously print the test pattern sheet.
Selects a local language for display.
Hex dump mode. Printer reset is
needed to exit this function.
Displays information about program/font
ROMs by pressing "Set" switch.
Clear NVRAM.
This function is not normally used.
Check DRAM.
Enters the inspection mode. See
section 9. 'Inspection Mode' in
CHAPTER 6.
Printer test mode. For factory use.
For factory use.
subsection 2. 'PERIODICAL
for more information about the periodical
7-13
PR2001022