Citizen CMP-20: 2-Inch Mobile Receipt Printers Product Review


By Mike Monocello, editor-in-chief, Business Solutions magazine
Follow Me On Twitter @monocello

citizen CMP-20

Testing by Greg Nelson, VP and CTO, Gware POS (formally Genesis-POS)

A VAR evaluates four 2-inch mobile receipt printers and shares the pros and cons of each.

Mobility in the worlds of retail and hospitality is one of the hottest topics. There’s also a lot of hype, confusion, and speculation. In an attempt to provide clarity on just one aspect of a mobile POS solution, we decided to review 2-inch mobile receipt printers. We once again teamed up with Greg Nelson, VP and CTO of GwarePOS (formally Genesis-POS). As our starting point, we utilized our most current Best Channel Vendors survey results, re-sorting the data to determine which manufacturers had the highest product-related scores in the survey. As a result, we had a field of about 10 manufacturers with scores we felt were high enough for consideration. As with our previous 4-inch mobile label printer review, we found some vendors didn’t offer the type of printer we were testing. Others had products that fit but openly told us that they didn’t think they’d fare well in the review, or certain aspects of the review, because their products were outdated. So, if you’re wondering why your manufacturer of choice isn’t included in the review, it’s not because we didn’t ask. In the end, we received units from Citizen, Epson, Star Micronics, and Zebra. Once the units began arriving, Nelson began his testing.

Citizen Logo

Setup and Configuration

The first thing we wanted to test was ease of setup. Back in May when we did our mobile label printer test, we expected setup to be a breeze. We were dismayed to discover that getting those printers con- figured on the tester’s wireless LAN was more than challenging. Therefore, I was eager to see how the receipt printer manufacturers compared.

Thankfully, Nelson found the units relatively easy to set up. Like the other printers, the Citizen CMP-20 require software to be installed on a PC and then for the printer to be connected to that PC via a standard mini USB cable. Once the software was installed and the printer connected to the PC, Nelson was able to configure the printer’s network connectivity. The CMP-20 was quickly connected to his wireless LAN with no issues.

Battery Life

Battery life is something else we wanted to test. It’s one thing for a manufacturer to promise that a printer will work over a full shift, but would our tests prove otherwise? The Citizen CMP-20 uses 7.4V batteries at 1,800 mAh — the second most juiced battery in our test. It’s important to note that size doesn’t necessarily mean more run time. For instance, the Citizen unit needs the extra power to supply its Wi-Fi.

Nelson planned on running batteries completely down but discovered that after 15 minutes of continuous printing (something you wouldn’t see in a real-world application) batteries had only lost 7% of their power. Rather than continue draining batteries and making conclusions on an abnormal use case, Nelson agreed with the manufacturers’ statements that the printers could easily handle a full day of printing. However, Nelson did say that if the printers are going to be used in a high volume location, you may need to have a spare battery around toward end of shift. Of the printers tested, all batteries were easily accessed and swapped out.

Evaluation Tip: To not waste an opportunity to educate, Nelson looked at the batteries of mobile printers not in our review. He found that one printer required the belt clip to be removed and used a bayonet-style connector (basically, a wired connector with plugs) for the battery, which is not exactly user friendly. Something to keep in mind as you evaluate printers: Don’t assume modern devices all have drop in batteries. If there’s a plug involved, know that “ease of use” will suffer

Paper Loading

In testing mobile label printers back in May, loading rolls of media was an area where some printers struggled and others shined. Nelson reported paper loading to be a nonissue with the Citizen CMP-20. The unit has an easy-to-access button to open the media door and fast, pain-free paper loading.


The Citizen CMP-20 clocked in at 3.1 inches-per-second print speed, the slowest of the printers tested. However, it’s important to note that “slowest” is only be tenths of a second. In fact, there’s only 8/10 of a second different from the fastest to the slowest. We also looked at time to first print. That is, we sent a print job and measured how long it took for each printer to begin printing. Again, not much difference here. Only 3/10 of a second separates the fastest from the slowest. The gist of all this is that Nelson found all the printers comparable in print speed and performance.

Wearability, Durability

If you or your customers look only at features and price, you could be dooming users to wear a brick all day long. A major factor when it comes to evaluating mobile printers has to be the size and weight of the units. On paper and in person, it’s easy to see the physical differences among the reviewed units. The Citizen CMP-20 came in at 1.14 lbs. with paper and battery.

Nelson took time wearing all the units and discovered that, despite the relatively small size and weight of all the printers, it doesn’t take long for them to begin wearing heavy on the hip. “Think about who is going to be wearing these printers,” says Nelson. “A teenager weighing just over 100 lbs. is going to have trouble wearing this all day.” If a printer is too heavy, the door opens for all sorts of issues, including employees not wanting to use the devices and/or taking them off. The moment a user takes a printer off due to weight, you might as well have sold your customer a traditional receipt printer.

All that said, understand that size and weight might not be an issue for certain customers who are searching for a bulkier, more durable unit.

Without any special cases or protection, the CMP-20 is classified as being able to withstand four foot drops to concrete. While we didn’t push these claims, Nelson did drop the printer once from the edge of his desk, and reported that the unit came through unscathed.

When it comes to protection from dust and liquids, the Citizen unit is IP42 rated (i.e. solid objects and drops of water), but adding a protective case can bring that rating up to IP54 (i.e. a little dust and splashes of water).

All of these factors should play a part in your decision in finding the right printer for your customers.

Final Thoughts

When the review was completed, Nelson found the Citizen unit to be solid and a great compromise between durability, weight, and performance. Even though it wasn’t tested here, the Citizen printer is also available with an integrated mag-stripe reader.

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