The requirement is towards the parameters and indices of laser pointer

The requirement is towards the parameters and indices of laser pointer .
Resolution: 650DPI in the course, I found the failure rate of the machine which is lower than the previous 8100 ~ -8150, 8700 the failure rate slightly higher. Here are some common failure. Fault-l in a district card. Solution: Replace the pickup suction piece part failure is still expressed as 10 x 12 films each have cards, other dimensions of the normal. After examination revealed two hoses on the pickup, is to prevent simultaneous absorption of two film. Two hoses to remove the failure to resolve. Retrospective analysis: two hoses to prevent a suction on the two film to a certain extent. The need is on the basis of the technology and design of laser pointer .So that laser pointer can be used in a correct way  
(2) the failure reasons: ① the front door is closed, the cassette failed to open correctly. ② suction disc device failed to detect the cassette. (3) solution: ① detection open the cassette motor and on-chip box open position sensor (cartridge present sensor). The ② detect suction disc device is responsible for the down movement of the motor and is responsible for detecting cassette surface of the sensor (film s urface sensor). 2 Fault (1) failure phenomenon: Card in the Second District, Error Code: 21 l19 (2) Failure: ① suction disc device suck the film upward movement. Not the film completely into the one pair transfer. Roll axis (Feed Roller), the negative pressure of suction is lost. Film falling down, stick on a film magazine. Lead to absorption of films can not be sucked up again. Teaching baton is one of the most widely used applications of laser pointer .
Suction disc device will be sent to the film when the transfer roller (Feed Roller). Below the roller axis of rotation normal, above the roll axis will not be diverted or re-very little: ③ suction-chip devices will be sent to the film transfer roller (Feed Roller), a pair of roller rotation is not normal; ④ The suction cups to use over time long, when uneven pressure in the film. Pumping vacuum leak gas. The film can not be sucked up (3) solution: ① check the suction disc device detected on the suction piece position sensor (film Pickup the home sensor). When the sensor back to the initial position, the motor stops. Negative pressure disappears. If the sensor the wrong place. May occur earlier or later: ② examination revealed very tight above the roll axis.  laser pointer  owns the high performance and high practical degree.Maintain the performance and function of laser pointer well