SATO MB400i User Manual

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When printing fails (automatic printing)
In direct sunlight or under illumination, the internal sensors may mis-oper-
ate (assuming a label is present in the dispenser unit), and prevent print-
ing. In such malfunction, either shield the dispenser unit from harsh light, 
or operate using one of the following methods. 
1. Operation using manual printing 
Switch to manual printing by specifying the dispenser operation mode. 
(See Charging the dispense mode printing setting in Operation Modes 
section of chapter 14, Reference.) 
2. Operate using operation 2 for the dispenser operation 
Using the printer setup tool, switch the dispenser operation to operation 2. 
When operation 2 is set for the dispenser operation, if harsh light is pre-
venting printing, print using the following procedure. 
Press the PRINT button to switch to manual printing, and print one label. 
When printing multiple labels, operate with manual printing until the desig-
nated number of labels are printed. 
While operating in manual printing mode, the STATUS LED alternates 
between lighting green and orange (every 0.5 seconds). 
Print condition Causes
Countermeasure
Smudged
1 The head is dirty
2 The rollers are dirty
1 Clean the head (See Caring for the 
thermal head section in chapter 13 Daily 
Care).
2 Clean the platen (See Caring for the 
platen/dispenser roller/paper sensor  in 
chapter 13, Daily Care).