You do not have much of a chance of getting the ticket thrown out for a printing discrepancy just at those who point out spelling errors for getting a "ticked" will never cease to blast message board spelling or grammar errors.
All jurisdictions are different. I had an officer pull me over for allegedly not coming to a full stop at a stop sign. I plead not guilty on the ticket and sent it in. I was assigned a court date, appeared to plead my case, and the prosecutor for the city informed me that the officer did not show, they had no witness, and I won.
I drive 35,000 to 40,000 miles a year with my job. My employer has a policy of 3 moving violations in a 3 year period and I could lose my job. If I get 2 moving violations in 3 years I am put on probation and considered high risk. DUI or capital offense and I lose my job.
I was able to get 2 speeding tickets bargained down to equipment violations (no points on the license and NOT a moving violation). Insurance companies don't care if you have a speeding ticket, fail to obey traffic control device, etc. without points, they look at the violation.
I showed up for mayor's court and gave the mayor a copy of my employer's policy and what a speeding ticket could mean and asked to get it reduced to an equipment violation. they agreed immediately. In the other case I called the city prosecutor and asked to see her and showed her the policy the next day. Showed up for court, informed the magistrate of the consequences and got the equipment violation.
It is a means of generating revenue for the city and showing the residents that speeders are being dealt with. The city gets their money and they are happy. Your driving record has no moving violations and you are happy. I'd rather pay a little more in court costs than have my insurance go up and risk losing my license and job.
Don't argue with the police officer. Be polite, answer their questions, and don't bullshit them. Show up for court clean, don't argue and make your case with proof and try to get the equipment violation or other reduced charge.
With the one ticket the officer told me what he clocked me at, said I could see the reading, and told me when the unit was last calibrated without me asking. Many departments are wise to the whole calibration issue and squash it right away. the ticket even had a section for the date and time of calibration.