2-14
Confidential
When the new toner detection switch detects that the toner cartridge is replaced with a new
one, the developing bias voltage is initialized at the same time.
The toner used for the printer has a property that print density is light first and gradually
darker in the course of usage. The developing bias controls the toner property so that the
print density is constant from first to last.
To obtain a print result of a constant density all the time, the printer counts the number of print
pages immediately after the toner cartridge is replaced and changes the bias voltage
according to the accumulated number of prints with the toner cartridge.
The bias voltage is changed with the steps described below:
(1) When the new toner sensor detects that the toner cartridge is replaced with a new (full)
one, the developing bias is set to 400V (initialized).
(2) After that, the bias voltage is stepped down according to the number of prints. Ultimately,
the bias voltage is 275V.
<When a new toner cartridge is inserted after "Replace Toner" is displayed>
Corresponding counter, Setting value
Operation
Counter of toner cartridge changes
+1
Page counter for each toner cartridge
Reset (0)
Coverage for each toner cartridge
Reset (0)
Developing bias voltage
Reset (Initial setting)
[Used toner amount]
[Density]
[Voltage]
[Used toner amount]
[Density]
[Voltage]
Bias voltage
Toner property
Actual control
Print density
Bias voltage
Print density
Содержание HL 5370DW
Страница 12: ...CHAPTER 1 SPECIFICATIONS ...
Страница 32: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Страница 57: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 109: ...Confidential CHAPTER 4 PERIODIC MAINTENANCE ...
Страница 129: ...4 19 Confidential 14 Secure the Fuser unit with the pan B M4x20 Taptite screw Fig 4 27 Taptite pan B M4x20 Fuser unit ...
Страница 145: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Страница 153: ...5 6 Confidential Fig 5 3 EM D110 4 places Separation pad ASSY ...
Страница 154: ...5 7 Confidential 5 GEAR LAYOUT DRAWING Fig 5 4 ...
Страница 187: ...5 40 Confidential 2 Remove the SW key B from the Top cover printed ASSY Fig 5 41 SW key B Top cover printed ASSY ...
Страница 200: ...5 53 Confidential 8 13 Main Shield Plate ASSY 1 Remove the Insulation sheet Fig 5 63 Insulation sheet Frame L ...
Страница 212: ...5 65 Confidential 8 24 Gear 17 20 23 1 Remove the Gear 23 Fig 5 84 2 Remove the Gear 20 Fig 5 85 ...
Страница 213: ...5 66 Confidential 3 Remove the Gear 17 black Fig 5 86 4 Remove the Gear 17 white Fig 5 87 ...
Страница 261: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 276: ...Confidential CHAPTER 7 SERVICE MODE ...
Страница 308: ...App 1 1 Confidential FIRMWARE SWITCHES WSW There is not function of the firmware switch in this machine ...