Abstract: According to one embodiment, a memory controller includes a compression unit that compresses two or more determination voltage values for threshold voltages of a memory cell to a vector quantity, the memory cell being capable of storing three or more data values. The memory controller further includes a storing unit that stores the vector quantity into a memory region. The memory controller further includes a decompression unit that decompresses the stored vector quantity to provide the determination voltage values.

Abstract: A memory system includes non-volatile memory cells for storing multiple bit data and a controller configured to control to apply read voltages to the non-volatile memory cells at different threshold levels to read data written to the non-volatile memory cells. The non-volatile memory cells comprise different sub-groups. The controller stores first information indicating a first initial value for each of the different threshold level of the read voltages, second information that indicates whether data can be successfully read from each sub-group when the respective different threshold levels of the read voltages are set to the first initial values, and third information that indicates a second initial value for each different threshold level of the read voltages for at least one sub-group for which data reading was unsuccessful when a read voltage was set to the first initial value.

Abstract: According to one embodiment, a memory system includes a memory including nonvolatile memory cells, and a controller configured to set read voltages for reading data stored in the nonvolatile memory cells. The controller stores first shift patterns relating to a plurality of read voltages, first index information associating to a first shift pattern with each of a plurality of memory cell groups, second shift patterns relating to differences between read voltages and read voltages set according to a first shift pattern, and second index information associating a second shift pattern with each memory cell group. The controller generates read voltages of a target memory cell group based on the first shift pattern voltages and the second shift pattern voltages.

Abstract: A pulley serving as a rotary body and a scale configured to rotate integrally with the pulley are attached to an end portion of the pulley serving as the rotary body in a thrust direction, a detection unit is configured to detect rotation of the pulley serving as the rotary body by reading a reading region of the scale. An absorber capable of absorbing liquid is attached to a surface of the scale on which a reading region is present, and when liquid adheres to the scale, the absorber absorbs the liquid.

Abstract: A recording device includes a first transportation path along which a medium is transported, a recording unit configured to record on the medium on the first transportation path, a second transportation path branching from the first transportation path, a flap located at the junction and configured to be moved to a first position to open the first transportation path and to a second position to close the first transportation path, and a driving section. After the medium passes the junction, the flap is positioned at the second position to come in contact with the medium traveling upstream along the first transportation path and guide the medium to the second transportation path. The flap is moved to the first position by a driving force of the driving section.

Abstract: A recording device includes a recording unit, a first transport path, a second transport path, a first discharge roller pair, a second discharge roller pair, a first driving motor configured to drive the first discharge driving roller, a second driving motor configured to drive the second discharge driving roller, and a movement mechanism capable of moving the second discharge roller pair between a sandwiching state where a second discharge driving roller and a second discharge driven roller sandwich a recording medium, and a separated state where the second discharge driving roller and the second discharge driven roller are separated. In a part of a period in which the recording medium is transported, the second discharge roller pair is in the separated state.

Abstract: A drive transmission device includes a plurality of pulleys including three or more pulleys, and an endless belt stretched over the plurality of pulleys and in which a plurality of linear belt sections each formed between two of the pulleys are formed, wherein a first flange is provided on a first pulley which is the pulley that forms a longest belt section and does not form a shortest belt section among the plurality of belt sections, and a gap between the first flange and a side surface of the endless belt is smaller than a gap between a flange provided on another pulley and the side surface of the endless belt.

Abstract: A memory system includes non-volatile memory cells for storing multiple bit data and a controller configured to control to apply read voltages to the non-volatile memory cells at different threshold levels to read data written to the non-volatile memory cells. The non-volatile memory cells comprise different sub-groups. The controller stores first information indicating a first initial value for each of the different threshold level of the read voltages, second information that indicates whether data can be successfully read from each sub-group when the respective different threshold levels of the read voltages are set to the first initial values, and third information that indicates a second initial value for each different threshold level of the read voltages for at least one sub-group for which data reading was unsuccessful when a read voltage was set to the first initial value.

Abstract: A transport apparatus includes a mounting section on which a medium is to be mounted, a drive section configured to drive the mounting section in a moving direction and a protection section configured to be switched between a protection state for protecting the drive section and a release state for releasing protection of the drive section. The mounting section has a driven section that engages with the drive section and is driven by the drive section. When the driven section driven by the drive section engages with the drive section, the protection section is in the release state, and when the driven section does not engage with the drive section, the protection section is in the protection state.

Abstract: A memory system includes a memory and a controller. The memory includes at least a first memory cell and a second memory cell. The controller can determine a first stress type that the first memory cell received or a second stress type that the second memory cell received based on a change amount between a first read threshold voltage to read data from the first memory cell when having received stress, and a second read threshold voltage to read data from the first memory cell when having received no stress.

Abstract: A memory system includes a non-volatile memory and a controller configured to divides an n-dimensional space into a plurality of regions by a plurality of hyperplanes, assign a representative point of a read level for reading data from a plurality of memory cells to each region, trace a branch node in the binary tree by determining whether a first read level is higher or lower than a voltage level at the branch node of the binary tree, determine a read level of a representative point assigned to a region correlated with a leaf node among the plurality of divided regions as a second read level corresponding to the first read level when reaching the leaf node of the binary tree by tracing the branch node in the binary tree, and cause the memory to read data of the cells by applying a voltage of the second read level.

Abstract: A memory system includes a memory and a controller. The memory includes at least a first memory cell and a second memory cell. The controller can determine a first stress type that the first memory cell received or a second stress type that the second memory cell received based on a change amount between a first read threshold voltage to read data from the first memory cell when having received stress, and a second read threshold voltage to read data from the first memory cell when having received no stress.

Abstract: A medium receiving tray is configured to switch between a first state in which the medium receiving tray is accommodated in a device main body and a second state in which the medium receiving tray most protrudes, and the device main body includes a support member that is configured to be support the medium receiving tray. The device main body includes a rail that supports the first tray constituting the medium receiving tray. The support member is at a position protruding from an end portion of the rail in a protruding direction of the first tray from the device main body. The support member is at the retracted position when the medium receiving tray is in the first state, is at the advanced position when the medium receiving tray is in the second state, and supports the first tray constituting the medium receiving tray from below.

Abstract: A recording device includes a recording unit, a first transport path, a second transport path, a first discharge roller pair, a second discharge roller pair, a first driving motor configured to drive the first discharge driving roller, a second driving motor configured to drive the second discharge driving roller, and a movement mechanism capable of moving the second discharge roller pair between a sandwiching state where a second discharge driving roller and a second discharge driven roller sandwich a recording medium, and a separated state where the second discharge driving roller and the second discharge driven roller are separated. In a part of a period in which the recording medium is transported, the second discharge roller pair is in the separated state.

Abstract: A transport apparatus includes a mounting section on which a medium is to be mounted, a drive section configured to drive the mounting section in a moving direction and a protection section configured to be switched between a protection state for protecting the drive section and a release state for releasing protection of the drive section. The mounting section has a driven section that engages with the drive section and is driven by the drive section. When the driven section driven by the drive section engages with the drive section, the protection section is in the release state, and when the driven section does not engage with the drive section, the protection section is in the protection state.

Abstract: According to one embodiment, a memory system includes a memory device and a controller. The controller is configured to instruct to apply, to a first word line, a determination voltage that is based on a first value and a first difference value in a case where it is determined whether or not a first data value has been written in a first memory cell, to instruct to apply, to a second word line, a determination voltage that is based on the first value, the first difference value, and a second difference value in a case where it is determined whether or not the first data value has been written in the second memory cell, and to change the first difference value in a case where a first condition is satisfied.

Abstract: A memory system includes a non-volatile memory and a controller configured to divides an n-dimensional space into a plurality of regions by a plurality of hyperplanes, assign a representative point of a read level for reading data from a plurality of memory cells to each region, trace a branch node in the binary tree by determining whether a first read level is higher or lower than a voltage level at the branch node of the binary tree, determine a read level of a representative point assigned to a region correlated with a leaf node among the plurality of divided regions as a second read level corresponding to the first read level when reaching the leaf node of the binary tree by tracing the branch node in the binary tree, and cause the memory to read data of the cells by applying a voltage of the second read level.

Abstract: A recording device includes a first transportation path along which a medium is transported, a recording unit configured to record on the medium on the first transportation path, a second transportation path branching from the first transportation path, a flap located at the junction and configured to be moved to a first position to open the first transportation path and to a second position to close the first transportation path, and a driving section. After the medium passes the junction, the flap is positioned at the second position to come in contact with the medium traveling upstream along the first transportation path and guide the medium to the second transportation path. The flap is moved to the first position by a driving force of the driving section.

Abstract: According to one embodiment, a memory system includes a memory device and a controller. The controller is configured to instruct to apply, to a first word line, a determination voltage that is based on a first value and a first difference value in a case where it is determined whether or not a first data value has been written in a first memory cell, to instruct to apply, to a second word line, a determination voltage that is based on the first value, the first difference value, and a second difference value in a case where it is determined whether or not the first data value has been written in the second memory cell, and to change the first difference value in a case where a first condition is satisfied.

Abstract: A medium receiving tray is configured to switch between a first state in which the medium receiving tray is accommodated in a device main body and a second state in which the medium receiving tray most protrudes, and the device main body includes a support member that is configured to be support the medium receiving tray. The device main body includes a rail that supports the first tray constituting the medium receiving tray. The support member is at a position protruding from an end portion of the rail in a protruding direction of the first tray from the device main body. The support member is at the retracted position when the medium receiving tray is in the first state, is at the advanced position when the medium receiving tray is in the second state, and supports the first tray constituting the medium receiving tray from below.