故障 1　洗片机冲出的Ｘ光胶片发灰 ,无层次感。分析检修　下列情况可导致胶片发灰(1)胶片过期 ;(2 )曝光量不够 ;(3)显影不足。经检查 ,胶片在保用期内 ,曝光条件也正常 ,因此重点分析显影方面。引起显影不足的因素为显影液老化 ,显影时间不够 (洗片机走片速度过快 )以及显影 Fault 1 The X-ray film punched by the film processor is gray and has no sense of layering. Analysis and Maintenance The following conditions may cause the film to gray (1) the film expires; (2) the exposure is insufficient; (3) insufficient development. After inspection, the exposure conditions of the film during the warranty period are also normal. Therefore, the development of the film is mainly analyzed. Insufficient development causes developer aging, insufficient development time (excessive film travel speed), and development