摘要:
A recording apparatus and a signal control method for the recording apparatus capable of high speed data reception suitable for each host apparatus and an improved throughput. The recording apparatus is provided with an interface control block and a CPU, the former transmitting an ACKX signal representative of a completion of data reception from a host apparatus to the host apparatus, and the latter controlling not to output the ACKX signal if it is judged that the ACKX signal is unnecessary, and to output the ACKX signal with an optimum width if it is judged that the ACKX signal is necessary.
摘要:
A recording apparatus records an image by driving plural recording elements in blocks, into which the plural recording elements are divided. The plural blocks are divided into plural groups, each group having more than one block. A driving circuit drives each of the blocks independently. The driving circuit effects recording with high resolution or low resolution by respectively driving plural groups at a different timing in a first mode and driving the plural groups at a same timing in a second mode.
摘要:
A recording apparatus includes a recording head. The recording head is provided with a recording device string made up of a plurality of recording elements. The recording device string is arranged at a specified angle in relation to the direction perpendicular to the direction in which the recording head moves. A plurality of recording elements is divided into a plurality of blocks and sequentially driven in units of blocks at a specified interval. When recording is performed from a position other than an end of the recording device string, the drive sequence of the blocks is changed. The block including the recording element corresponding to a recording start position is first driven and recording data is read with the effective use of a signal line in a data bus.
摘要:
An ink jet printing apparatus has a discharge recovery system that controls the amount of ink suction in a discharge recovery operation on the basis of a property of the ink in a cartridge mounted on the apparatus. The discharge recovery operation can also be controlled when the power to the apparatus is turned on if a cartridge has been replaced or mounted while the power is off.
摘要:
An ink jet apparatus carries out a recovery operation if a cap member is not capping a discharge opening when the ink jet apparatus is turned on. The recovery operation includes first wiping a discharge surface with a wiper member, next capping the discharge opening with the cap member, next applying suction to draw ink from the discharge opening using a suction pump, and thereafter discharging ink through the discharge opening, thereby enabling recording of high quality at the beginning of recording after the ink jet apparatus is turned on. The recovery operation may include other steps and be preceded by heating the ink jet head to reduce ink viscosity and enhance the effectiveness of the recovery operation.
摘要:
A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.
摘要:
A recording apparatus configured to record on a recording medium by using a recording head, includes a first storage unit that stores input data including a command and a first image data, a reading unit that reads out the command and the first image data stored in the first storage unit by using a first pointer, a generating unit that converts the first image data read out from the first storage unit and generate a second image data, a second storage unit that stores the second image data generated in the generating unit, a determining unit that determines whether an amount of data stored in the first storage unit reaches a predetermined value by using a second pointer, and a recording unit that starts a scan for recording after the determining unit determines that the amount of data stored in the first storage unit reaches the predetermined value.
摘要:
A printer, which enables complicated printhead controls without a complicated logic circuit, includes a data table showing a control pattern of six controls stored in a RAM. When a drive trigger is inputted into a read-trigger generator, an address generator generates the address of the data table in the RAM as an address signal and inputs the address signal into the RAM. On the other hand, the read-trigger generator inputs a data-read trigger into the RAM. Control signals read by these signals are inputted into a head driver with heat pulses, which drives the printhead.
摘要:
When the sub-heaters of recording heads are PWM controlled in a low-temperature environment, temperatures of the recording heads are respectively detected by temperature sensors. The number of recording heads to be heating controlled is determined from the detected recording head temperatures, and a maximum duty ratio of a pulse train supplied to the sub-heater corresponding to the recording head to be heating controlled is determined in accordance with the determined number of the recording heads, so that supply timings of pulse width controlled pulse trains supplied to the sub-heaters corresponding to the recording heads to be heating controlled are not overlapped.
摘要:
The present invention relates to a recording apparatus that includes a recording head capable of performing dot recording, a main scanner for scanning the recording head, and a data storage for storing data sent from a host computer. The apparatus can make a record according to stored data by performing a plurality of main scans, and further comprises a restorer for restoring data, which has been subjected to given processing by the host computer, to another data in line with the given processing. The present invention further relates to a record data processing method. According to the present invention, an amount of sent data to be held can be reduced by reducing an amount of data to be transferred from the host computer. Moreover, a record with irregular concentration suppressed can be made in substantially the same recording area by performing a plurality of rounds of main scan as conventionally, while a reduction in cost can be achieved.