6-67
6.5.10 Problems due to inappropriate ink stream position in charged
electrode
>
If the ink stream does not pass through the charged electrode, the following
problems may occur:
(1) The height of printed characters will be larger than standard.
(2) Since the ink drops are not charged normally:
- The character quality will degrade (characters are distorted).
- Print fault, such as appearance of crushed characters, will occur.
(3) Since the amount of charge on ink drops that are slightly charged for auto
phase detection among the dots not used for printing is abnormal, those ink
drops will be excessively deflected by the deflecting field and cannot enter the
gutter hole. Therefore, the gutter will be dirty, causing an alarm of either Ink
Drop Charge Too High or No Ink Drop Charge.
> Check the ink stream passing position in charge electrode, and adjust the electrode
so that the ink stream passes through its center.
> Adjustment procedure:
(1) Loosen the screw holding the charge electrode, use the slight clearance to
change the position of electrode, and then tighten the screw.
(2) Use small pliers to apply force to the bent portion of charge electrode for
correction.
Good
Nozzle
Ink
stream
Charge
electrode
Center
Closer
Ink stream drifts to one side.
Closer
Ink stream is oblique
Содержание IJ UX
Страница 1: ...Service Manual HITACHI Printer Model UX Revision July 1 2015 Version ...
Страница 2: ... Revision of UX service manual Revision Chapter Revised Page Frist Edition ...
Страница 15: ...1 9 2 External views Rear side 1 2 2 Main body internal Appearance with inner cover T removed ...
Страница 16: ...1 10 1 2 3 Print head UX E UX D B Air exhaust port ...
Страница 107: ...3 27 Circuit diagram of EZJ127A ...
Страница 108: ...3 28 Circuit diagram of EZJ127B ...
Страница 122: ...3 42 Circuit diagram of EZJ129 ...
Страница 131: ...3 51 3 3 20 Electrical Connection Diagram ...
Страница 132: ...3 52 ...
Страница 188: ...4 55 5 Reset the time of the R air filter to 0 on the Parts usage time management screen ...
Страница 301: ...7 Attached Drawing 7 1 Circulation System Diagram Circulation System Diagram UX B D 7 1 ...
Страница 302: ...Circulation System Diagram UX E 7 2 ...
Страница 303: ...7 3 Location of Solenoid valve Location of ICU joint Reducing valve Viscometer Pressure sensor Makeup filter Motor Pump ...
Страница 304: ...7 2 Electrical Connection Diagram 7 2 1 Electrical Connection Diagram UX D E 7 4 Electrical Connection Diagram UX D E ...
Страница 305: ...7 5 7 2 2 Electrical Connection Diagram UX B Basic model Electrical Connection Diagram UX B ...
Страница 308: ... Nozzle diameter 65μm 7 8 7 4 Dimensions around charge electrode and deflection electrode ...