| 摘要 |
FIELD: printing industry. ^ SUBSTANCE: invention relates to ink-jet pen and devices for use in jet pens (writing units). Ink-jet pen (writing unit) comprises bubbler of discharge pipe, body, which forms at least part of discharge pipe and printing head connected to discharge pipe by fluid medium. Besides printing head comprises flowmetre diaphragm, which determines multiple ink-jet nozzles, and at least part of discharge pipe bubbler. At the same time bubbler of discharge pipe comprises at least one hole, which enters flowmetre diaphragm and is arranged with the possibility to provide for entry of external air into discharge pipe through flowmetre diaphragm and printing head. ^ EFFECT: ink-jet pen is arranged with the possibility to work for longer time, and also makes it possible to reduce non-consumed amount of ink that remained in the end of service life. ^ 9 cl, 14 dwg |
